SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT
                       PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934


          Date of Report (Date of Earliest Event Reported): May 1, 1996




                            COMSTOCK RESOURCES, INC.
             (Exact name of registrant as specified in its charter)



           NEVADA                     0-16741                    94-1667468
(State or other jurisdiction       (Commission               (I.R.S. Employer
      of incorporation)            File Number)           Identification Number)



                5005 LBJ Freeway, Suite 1000, Dallas, Texas 75244
                    (Address of principal executive offices)


                                (214) 701 - 2000
                          (Registrant's Telephone No.)










Item 2. Acquisition or Disposition of Assets

         On May 1 and May 2, 1996,  Comstock  Resources,  Inc.  (the  "Company")
acquired  100% of the capital  stock of Black  Stone Oil Company and  additional
interests held by other working interest owners in certain producing oil and gas
properties  as well as interests in  undeveloped  oil and gas leases  located in
East Texas for total cash  consideration  of approximately  $104 million.  Black
Stone Oil Company is the operator of the producing oil and gas properties  which
are located in the Double A Wells field in Polk County, Texas. The estimated net
proved oil and gas reserves acquired are estimated at 98.5 billion cubic feet of
natural gas and 5.3 million  barrels of oil as of January 1, 1996, the effective
date of the  acquisition.  Such reserves have  estimated  pretax future net cash
flows of $249 million and estimated pretax  discounted  future net cash flows of
$149 million.

         The  acquisition  was  financed  under a new $176  million  bank credit
facility  provided  by The First  National  Bank of Chicago  and Bank One Texas,
N.A.,  consisting of a $166 million  revolving credit facility and a $10 million
bridge loan. The Company  financed the $104 million  acquisition  and refinanced
$58.7 million  outstanding  under its existing  revolving credit facility and an
existing  $10  million  bridge  loan  which was to mature on July 31,  1996 with
borrowings under the new bank credit facility. Amounts outstanding under the new
revolving credit facility  presently bear interest at the agent bank's base rate
plus 1/2% and are subject to a borrowing  base  determined  semiannually  by the
banks.  Upon repayment of the new $10 million bridge loan, the Company may elect
to have  borrowings  bear  interest  at LIBOR plus up to 2%.  The new  revolving
credit  facility  converts  to a two  year  term  loan on May 1,  1999.  Amounts
outstanding  under the new bridge loan bear  interest  at the agent  bank's base
rate plus 3% and are payable in full on December 31, 1996.

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits

                                                                      Page in
                                                                    This Report
(a)Financial Statements.

   Black Stone Acquisition:

    Report of Independent Public Accountants ..........................    F-1
    Statements of Revenues and Direct Operating Expenses
         for the Years ended December 31, 1993, 1994 and 1995
         and Three Months Ended March 31, 1995 and 1996................    F-2
    Notes to Statements of Revenues and Direct Operating Expenses......    F-3

(b)Pro Forma Financial Information.

   Comstock Resources, Inc.:

    Pro Forma Consolidated Financial Statements (Unaudited)............    P-1
    Pro Forma Consolidated Balance Sheet as of March 31, 1996..........    P-2
    Pro Forma Consolidated Statement of Operations
         for the Year Ended December 31, 1995..........................    P-3
    Pro Forma Consolidated Statement of Operations
         for the Three Months Ended March 31, 1996.....................    P-4
    Notes to Pro Forma Consolidated Financial Statements...............    P-5


                                        2





(c)  Exhibits.

          2(a)      Agreement  For  Purchase  and  Sale - Black  Stone  Holdings
                    Partnership  et. al. as Seller and Comstock Oil & Gas,  Inc.
                    as Buyer and Comstock Resources, Inc. as Guarantor.

          99(c)     Credit  Agreement  dated as of May 1, 1996 between  Comstock
                    Resources,  Inc.,  Comstock Oil & Gas, Inc.,  Comstock Oil &
                    Gas -- Louisiana,  Inc., Comstock Offshore Energy, Inc., the
                    Banks and The First  National Bank of Chicago,  as Agent and
                    Bank One, Texas N.A., as Co-agent.

                                        3





                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS










To the Board of Directors and Stockholders of
Comstock Resources, Inc.:

      We have  audited  the  accompanying  statements  of  revenues  and  direct
operating  expenses  of the Black Stone  Acquisition  (see Note 1) for the years
ended  December 31, 1993,  1994 and 1995.  These  financial  statements  are the
responsibility of the management of Comstock Resources,  Inc. Our responsibility
is to express an opinion on these financial statements based on our audits.

      We conducted our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the statements.  An audit also includes assessing
the accounting principles used and significant estimates made by management,  as
well as evaluating the overall financial statement presentation. We believe that
our audits provide a reasonable basis for our opinion.

      In our opinion,  such statements present fairly, in all material respects,
the  revenues  and direct  operating  expenses  of the Black  Stone  Acquisition
described  in Note 1 for the years ended  December  31,  1993,  1994 and 1995 in
conformity with generally accepted accounting principles.


ARTHUR ANDERSEN LLP


Dallas, Texas,
   May 3, 1996



                                       F-1


BLACK STONE ACQUISITION STATEMENTS OF REVENUES AND DIRECT OPERATING EXPENSES For the Years Ended December 31, 1993, 1994 and 1995 and for the Three Months Ended March 31, 1995 and 1996 Three Months Year Ended December 31, Ended March 31, ----------------------------------- ----------- ----------- 1993 1994 1995 1995 1996 ----------- ----------- ----------- ----------- ----------- (Unaudited) REVENUES Oil and gas sales $ 2,909,854 $ 6,738,087 $17,991,527 $ 2,923,944 $7,825,741 DIRECT OPERATING EXPENSES Oil and gas operating 474,757 990,723 2,453,204 375,231 863,461 ----------- ----------- ----------- ----------- ----------- EXCESS OF REVENUES OVER DIRECT OPERATING EXPENSES $ 2,435,097 $ 5,747,364 $15,538,323 $ 2,548,713 $6,962,280 =========== =========== =========== =========== ===========
See Notes to Statements of Revenues and Direct Operating Expenses. F-2 BLACK STONE ACQUISITION NOTES TO STATEMENTS OF REVENUES AND DIRECT OPERATING EXPENSES (1) BASIS OF PRESENTATION - On May 1, 1996, the Company acquired 100% of the capital stock of Black Stone Oil Company and additional interests held by other working interest owners in the Double A Wells field in East Texas as well as interests in certain undeveloped oil and gas leases (the "Black Stone Acquisition") for total cash consideration of approximately $104 million. The acquisition includes interests in 19 producing wells (7.74 net wells). The Company financed the $104 million acquisition and refinanced $58.7 million outstanding under its existing revolving credit facility and an existing $10 million bridge loan which was to mature on July 31, 1996 with borrowings under the new bank credit facility consisting of a $166 million revolving credit facility and a $10 million bridge loan. Amounts outstanding under the new revolving credit facility bear interest at the agent bank's base rate plus 1/2% and are subject to a borrowing base determined semiannually by the banks. The new revolving credit facility converts to a two year term loan on May 1, 1999. Amounts outstanding under the new bridge loan bear interest at the agent bank's base rate plus 3% and are payable in full on December 31, 1996. The accompanying statements of revenues and direct operating expenses do not include general and administrative expense, interest income or expense, a provision for depreciation, depletion and amortization or any provision for income taxes because the property interests acquired represent only a portion of a business and the costs incurred by the sellers of the properties are not necessarily indicative of the costs to be incurred by the Company. Historical financial information reflecting financial position, results of operations and cash flows of the Black Stone Acquisition is not presented because all of the acquisition cost was assigned to the oil and gas property interests. Accordingly, the historical statements of revenues and direct operating expenses have been presented in lieu of the financial statements required under Rule 3-05 of Securities and Exchange Commission Regulation S-X. (2) SUPPLEMENTAL OIL AND GAS RESERVE INFORMATION (UNAUDITED) - Estimated Quantities of Proved Oil and Gas Reserves The estimates of proved oil and gas reserves utilized in the preparation of the financial statements were estimated by independent petroleum engineers in accordance with guidelines established by the Securities and Exchange Commission and the Financial Accounting Standards Board, which require that reserve reports be prepared under existing economic and operating conditions. The Company emphasizes that reserve estimates of new discoveries or undeveloped properties are more imprecise than those of producing oil and gas properties. Accordingly, these estimates are expected to change as future information becomes available. F-3 BLACK STONE ACQUISITION NOTES TO STATEMENTS OF REVENUES AND DIRECT OPERATING EXPENSES (Continued) PROVED OIL AND GAS RESERVES AS OF DECEMBER 31, 1995: Oil (Bbls) Gas (Mcf) ------------ ------------ Proved Reserves 5,302,000 98,549,000 ============ ============ Proved Developed Reserves 3,794,000 70,831,000 ============ ============ Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves The standardized measure of discounted future net cash flows (the "Standardized Measure") is prepared using assumptions required by the Financial Accounting Standards Board. Such assumptions include the use of December 31, 1995 oil and gas prices and current costs for estimated future production and development expenditures with no provision for escalation except as provided for by contractual agreements. Discounted future net cash flows are calculated using a 10% discount rate. The Standardized Measure does not represent the Company's estimate of future net cash flows or the value of proved oil and gas reserves. Probable and possible reserves, which may become proved in the future, are excluded from the calculations. Furthermore, the December 31, 1995 prices, used to determine the standardized measure of discounted cash flows, are influenced by seasonal demand and other factors and may not be the most representative in estimating future revenues or reserve data. STANDARDIZED MEASURE OF DISCOUNTED FUTURE NET CASH FLOWS BEFORE INCOME TAXES AT DECEMBER 31, 1995: Future Cash Inflows $ 292,795,000 Future Costs: Production (40,582,000) Development (3,601,000) Future Net Cash Flows 248,612,000 10% Discount Factor (100,024,000) -------------- Standardized Measure of Discounted Future Net Cash Flows before Income Taxes $ 148,588,000 ============== F-4 COMSTOCK RESOURCES, INC. AND SUBSIDIARIES PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) The accompanying Pro Forma Consolidated Financial Statements have been prepared by recording pro forma adjustments to the historical consolidated financial statements of Comstock Resources, Inc. and subsidiaries (the "Company"). The Pro Forma Consolidated Balance Sheet as of March 31, 1996 has been prepared as if the Black Stone Acquisition was consummated on March 31, 1996. The Pro Forma Consolidated Statements of Operations for the year ended December 31, 1995 and for the three months ended March 31, 1996 have been prepared as if the Black Stone Acquisition and the 1995 Acquisitions, as described in Note 1, were consummated immediately prior to January 1, 1995 and January 1, 1996, respectively. The Pro Forma Consolidated Financial Statements are not necessarily indicative of the financial position or results of operations that would have occurred had the transactions been effected on the assumed dates. Additionally, future results may vary significantly from the results reflected in the Pro Forma Consolidated Statements of Operations due to normal production declines, changes in oil and gas prices, future transactions and other factors. These statements should be read in conjunction with the Company's audited consolidated financial statements and the related notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 1995 and the Company's consolidated financial statements and the related notes included in the Company's quarterly report on Form 10-Q for the three months ended March 31, 1996. P-1
COMSTOCK RESOURCES, INC. AND SUBSIDIARIES PRO FORMA CONSOLIDATED BALANCE SHEET (Unaudited) MARCH 31, 1996 ASSETS Pro Forma Adjustments (Note 2) Black Stone Historical Acquisition(a) Pro Forma ------------- ------------- ------------- Cash and Cash Equivalents $ 657,816 $ 5,206,600 $ 5,864,416 Accounts Receivable: Oil and gas sales 6,780,000 - 6,780,000 Gas marketing sales 11,325,600 - 11,325,600 Joint interest operations 1,448,177 - 1,448,177 Prepaid Expenses and Other 615,980 - 615,980 Inventory 91,005 - 91,005 ------------- ------------- ------------- Total current assets 20,918,578 5,206,600 26,125,178 ------------- ------------- ------------- Property and Equipment: Oil and gas properties 156,918,688 100,300,000 257,218,688 Other 2,776,143 - 2,776,143 Accumulated depreciation, depletion and amortization (58,025,109) - (58,025,109) ------------- ------------- ------------- Net property and equipment 101,669,722 100,300,000 201,969,722 ------------- ------------- ------------- Other Assets 933,768 (240,579) 693,189 ------------- ------------- ------------- $123,522,068 $105,266,021 $228,788,089 ============= ============= ============= LIABILITIES AND STOCKHOLDERS' EQUITY Current Portion of Long-term Debt $ 10,260,566 $ - $ 10,260,566 Accounts Payable and Accrued Expenses 18,958,008 1,966,021 20,924,029 ------------- ------------- ------------- Total current liabilities 29,218,574 1,966,021 31,184,595 ------------- ------------- ------------- Long-term Debt, less Current Portion 59,505,625 103,300,000 162,805,625 Deferred Revenue 322,501 - 322,501 Other Noncurrent Liabilities 1,185,071 - 1,185,071 Stockholders' Equity: Preferred stock - $10.00 par, 3,100,000 shares outstanding 31,000,000 - 31,000,000 Common stock - $.50 par, 13,120,242 shares outstanding 6,560,122 - 6,560,122 Additional paid-in capital 38,861,759 - 38,861,759 Retained deficit (43,067,990) - (43,067,990) Less: Deferred compensation - restricted stock (63,594) - (63,594) ------------- ------------- ------------- Total stockholders' equity 33,290,297 - 33,290,297 ------------- ------------- ------------- $123,522,068 $105,266,021 $228,788,089 ============= ============= =============
See Notes to Pro Forma Consolidated Financial Statements. P-2
COMSTOCK RESOURCES, INC. AND SUBSIDIARIES PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) For the Year Ended December 31, 1995 Pro Forma Adjustments (Note 2) ----------------------------------------- Black Stone The 1995 Historical Acquisition (b)Acquisitions Other Pro Forma ------------- ------------- ------------ ------------- ------------- Revenues: Oil and gas sales $ 22,090,894 $ 17,991,527 $ 8,041,986 $ - $ 48,124,407 Gas marketing sales 50,078,366 - 506,957 - 50,585,323 Gas gathering and processing 600,212 - 62,418 - 662,630 Gain on sales of property 2,608,088 - - - 2,608,088 Other income 290,115 - 70,219 - 360,334 ------------- ------------- ------------ ------------- ------------- Total revenues 75,667,675 17,991,527 8,681,580 - 102,340,782 ------------- ------------- ------------ ------------- ------------- Expenses: Oil and gas operating 7,426,626 2,453,204 3,214,250 - 13,094,080 Natural gas purchases 48,908,969 - 478,288 - 49,387,257 Gas gathering and processing 209,535 - 39,599 - 249,134 Depreciation, depletion and amortization 8,613,042 - - 9,560,945 18,173,987 General and administive, net 1,979,283 - - (561,850) 1,417,433 Interest 5,541,680 - - 13,081,463 18,623,143 Impariment of oil and gas properties 29,150,000 - - - 29,150,000 ------------- ------------- ------------ ------------- ------------- Total expenses 101,829,135 2,453,204 3,732,137 22,080,558 130,095,034 ------------- ------------- ------------ ------------- ------------- Income (loss) before income taxes (26,161,460) 15,538,323 4,949,443 (22,080,558) (27,754,252) Provision for income taxes - - - - - ------------- ------------- ------------ ------------- ------------- Income (loss) (26,161,460) 15,538,323 4,949,443 (22,080,558) (27,754,252) ------------- ------------- ------------ ------------- ------------- Preferred stock dividends (1,907,500) - - - (1,907,500) ------------- ------------- ------------ ------------- ------------- Net income (loss) attributable to common stock $(28,068,960) $ 15,538,323 $ 4,949,443 $(22,080,558) $(29,661,752) ============= ============= ============ ============= ============= Net income (loss) per $ (2.24) $ (2.36) ============= ============= Weighted average common shares outstanding 12,545,752 12,545,752 ============= =============
See Notes to Pro Forma Consolidated Financial Statements. P-3
COMSTOCK RESOURCES, INC. AND SUBSIDIARIES PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) For the Three Months Ended March 31, 1996 Pro Forma Adjustments (Note 2) ------------------------------ Black Stone Historical Acquisition (b) Other Pro Forma ------------ ------------- ------------ ------------ Revenues: Oil and gas sales $ 9,555,141 $ 7,825,741 $ - $17,380,882 Gas marketing sales 25,425,901 - - 25,425,901 Gas gathering and processing 153,611 - - 153,611 Other income 129,945 - - 129,945 ------------ ------------- ------------ ------------ Total revenues 35,264,598 7,825,741 - 43,090,339 ------------ ------------- ------------ ------------ Expenses: Oil and gas operating 2,523,187 863,461 - 3,386,648 Natural gas purchases 24,793,593 - - 24,793,593 Gas gathering and processing 56,946 - 56,946 Depreciation, depletion and amortization 2,621,358 - 2,453,244 (d) 5,074,602 General and administrative, net 411,833 - (42,799)(f) 369,034 Interest 1,848,470 - 2,143,475 (g) 3,991,945 ------------ ------------- ------------ ------------ Total expenses 32,255,387 863,461 4,553,920 37,672,768 ------------ ------------- ------------ ------------ Income before income taxes 3,009,211 6,962,280 (4,553,920) 5,417,571 Provision for income taxes - - - - ------------ ------------- ------------ ------------ Income 3,009,211 6,962,280 (4,553,920) 5,417,571 Preferred stock dividends (633,146) - - (633,146) ------------ ------------- ------------ ------------ Net income attributable to common stock $ 2,376,065 $ 6,962,280 $(4,553,920) $ 4,784,425 ============ ============= ============ ============ Net income attributable to common stock per share - Primary $ 0.18 $ 0.35 ============ ============ Fully diluted $ 0.15 $ 0.27 ============ ============ Weighted average number of common and common stock equivalent shares outstanding - Primary 13,522,330 13,522,330 ============ ============ Fully diluted 19,928,710 19,928,710 ============ ============
See Notes to Pro Forma Consolidated Financial Statements. P-4 COMSTOCK RESOURCES, INC. AND SUBSIDIARIES NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) (1) BASIS OF PRESENTATION - On May 1 and May 2, 1996, the Company acquired 100% of the capital stock of Black Stone Oil Company and additional interests held by other working interest owners in the Double A Wells field in East Texas as well as interests in certain undeveloped oil and gas leases (the "Black Stone Acquisition") for total cash consideration of approximately $104 million. Black Stone Oil Company is the operator of the oil and gas properties which were acquired. The acquisition includes interests in 19 producing wells (7.74 net wells). The Company financed the $104 million acquisition and refinanced $58.7 million outstanding under its existing revolving credit facility and an existing $10 million bridge loan which was to mature on July 31, 1996 with borrowings under the new bank credit facility consisting of a $166 million revolving credit facility and a $10 million bridge loan. Amounts outstanding under the new revolving credit facility bear interest at the agent bank's base rate plus 1/2% and are subject to a borrowing base determined semiannually by the banks. The new revolving credit facility converts to a two year term loan on May 1, 1999. Amounts outstanding under the new bridge loan bear interest at the agent bank's base rate plus 3% and are payable in full on December 31, 1996. On July 31, 1995, the Company closed an acquisition of producing oil and gas properties and natural gas gathering systems located in East Texas and North Louisiana from Sonat Exploration Company, a wholly owned subsidiary of Sonat Inc. ("Sonat") for total cash consideration of $50.6 million. The Company acquired interests in 319 (188 net) oil and gas wells from Sonat for $49.1 million. The interests were acquired with an effective date of March 1, 1995. In addition, the Company acquired the managing general partner interest of and a 20.31% limited partner interest in Crosstex Pipeline Partners, Ltd. ("Crosstex"), as well as certain other gas gathering systems primarily located in Harrison County, Texas from Sonat for cash consideration of $1.5 million. On May 15, 1995, the Company closed an acquisition of producing offshore oil and gas properties located in Louisiana State waters in the Gulf of Mexico. The Company acquired interests in 14 oil and gas wells (3.5 net wells) for $8,199,000. The effective date of the acquisition was November 1, 1994. During 1995, the Company acquired interests in the Lake LaRose field in South Louisiana for approximately $1 million. The three acquisitions closed in 1995 are hereafter referred to as the "1995 Acquisitions." The accompanying Pro Forma Consolidated Balance Sheet at March 31, 1996 and the Pro Forma Consolidated Statements of Operations for the year ended December 31, 1995 and the three months ended March 31, 1996, have been prepared assuming the Company consummated, immediately prior to each of the periods presented, the Black Stone Acquisition and the 1995 Acquisitions, funded by borrowings under the Company's bank credit facility (see Note 2). No adjustment has been made to reflect income taxes related to the Black Stone Acquisition or the 1995 Acquisitions due to the Company's net operating loss carryforwards which would offset any current or deferred tax liabilities. The Pro Forma Consolidated Statements of Operations are not necessarily indicative of the results of operations had the above described transactions occurred on the assumed dates. P-5 COMSTOCK RESOURCES, INC. AND SUBSIDIARIES NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) (Continued) (2) PRO FORMA ADJUSTMENTS - Pro forma adjustments necessary to adjust the Consolidated Balance Sheet and Statements of Operations are as follows: (a) To record the Black Stone Acquisition funded by borrowings under the Company's new bank credit facility. (b) To record revenue and direct operating expenses of the Black Stone Acquisition, based on the statements of revenue and direct operating expenses for the year ended December 31, 1995 and for the three months ended March 31, 1996. (c) To record revenue and direct operating expenses of the 1995 Acquisitions. (d) To record estimated depreciation and depletion expense attributable to the Black Stone Acquisition and 1995 Acquisitions using the unit-of-production method applied to the net cost of the properties acquired. (e) To record the increase in general and administrative expense of $164,025 less the operating fee income of $725,875 attributable to Black Stone and the 1995 Acquisitions for the year ended December 31, 1995. (f) To record operating fee income of $42,799 attributable to the Black Stone Acquisition for the three months ended March 31, 1996. (g) To record interest expense attributable to the increase in debt to finance the purchase of the Black Stone Acquisition and the 1995 Acquisitions. Interest expense is based upon the weighted average interest rate incurred by the Company under its new bank credit facility in the case of the Black Stone Acquisition or under the existing credit facility in the case of the 1995 Acquisitions, assuming the entire cost of the acquisitions had been funded with bank borrowings at January 1 of each period. P-6 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. COMSTOCK RESOURCES, INC. Dated: May 7, 1996 By:/s/ROLAND O. BURNS ------------------ Roland O. Burns Senior Vice President, Chief Financial Officer, Secretary, and Treasurer (Principal Financial and Accounting Officer)

                         AGREEMENT FOR PURCHASE AND SALE

                     BLACK STONE HOLDINGS PARTNERSHIP ET AL

                                    AS SELLER

                             BLACK STONE OIL COMPANY

                                   AS OPERATOR

                                       AND

                            COMSTOCK OIL & GAS, INC.

                                    AS BUYER

                                       AND

                            COMSTOCK RESOURCES, INC.

                                  AS GUARANTOR









                                TABLE OF CONTENTS

                                    ARTICLE I
                          Construction and Definitions

Section 1.1   Separate Agreement With Each Seller..............................1
Section 1.2   Defined Terms....................................................2

                                ARTICLE II
                             Purchase and Sale

Section 2.1   Agreement to Sell and Purchase..................................10
Section 2.2   Purchase Price..................................................10
Section 2.3   Allocated Values................................................10

                                ARTICLE III
                              Effective Time

Section 3.1   Revenues and Expenses...........................................11

                                ARTICLE IV
                      Title and Environmental Matters

Section 4.1   Title Examination Period........................................11
Section 4.2   Title Defects...................................................12
Section 4.3   Notice of Title Defects.........................................12
Section 4.4   Determination of and Remedies for Title Defects.................13
Section 4.5   Special Warranty of Title.......................................14
Section 4.6   Remedies for Title Benefits.....................................16
Section 4.7   Environmental Procedure.........................................16
Section 4.8   Determination of Disqualifying Environmental Condition..........17
Section 4.9   Remedies for a Disqualifying Environmental Condition............19
Section 4.10  Correction of a Disqualifying Environmental Condition...........20

                                    ARTICLE V
             Representations and Warranties of Sellers and Operator

Section 5.1   Representations and Warranties of Working Interest Owners.... ..20
Section 5.2   Representations and Warranties of Selling Stockholders..........24
Section 5.3   Representations and Warranties of Operator......................25

                                   ARTICLE VI
             Representations and Warranties of Buyer and Guarantor

Section 6.1   Representations and Warranties of Buyer.........................31
Section 6.2   Representations and Warranties of Guarantor.....................33

                                   ARTICLE VII
              Operation of the Subject Assets and Other Covenants

Section 7.1   Operation of the Subject Assets Prior to Closing................34
Section 7.2   Operation of Certain Areas After the Closing....................35

                                       -i-




Section 7.3   Operator's Geophysical Data.....................................35
Section 7.4   Course of Conduct by Operator...................................36
Section 7.5   Approvals and Consents..........................................37
Section 7.6   Investigations..................................................37
Section 7.7   Final S Corporation Federal Income Tax Return...................37
Section 7.8   Compiled Financials.............................................38
Section 7.9   Distributions...................................................38

                                  ARTICLE VIII
                      Conditions to Obligations of Sellers

Section 8.1   Representations.................................................38
Section 8.2   Performance.....................................................38
Section 8.3   Pending Matters.................................................38
Section 8.4   Hart-Scott-Rodino...............................................38
Section 8.5   Adjusted Purchase Price.........................................38
Section 8.6   Execution and Delivery of Closing Documents.....................38
Section 8.7   Certificates....................................................38
Section 8.8   Opinion.........................................................39

                                   ARTICLE IX
                       Conditions to Obligations of Buyer

Section 9.1   Representations.................................................39
Section 9.2   Performance.....................................................39
Section 9.3   Pending Matters.................................................39
Section 9.4   Hart-Scott-Rodino...............................................39
Section 9.5   Execution and Delivery of Closing Documents.....................39
Section 9.6   Certificates....................................................39
Section 9.7   Consents and Approvals..........................................40
Section 9.8   All Sellers to Close............................................40
Section 9.9   Nonforeign Affidavit............................................40
Section 9.10  Operator........................................................40
Section 9.11  ................................................................40

                                    ARTICLE X
                                     Closing

Section 10.1  Time and Place of Closing.......................................40
Section 10.2  Extension.......................................................40
Section 10.3  Actions to be Taken Prior to Closing............................40
Section 10.4  Adjustments to Purchase Price at Closing........................41
Section 10.5  Statement.......................................................42
Section 10.6  Post-Closing Adjustments to Purchase Price......................43
Section 10.7  Transfer Taxes..................................................44

                                      -ii-




Section 10.8  Ad Valorem and Similar Taxes....................................44
Section 10.9  Actions of Sellers at Closing...................................44
Section 10.10 Actions of Buyer at Closing.....................................44
Section 10.11 Further Cooperation.............................................44
Section 10.12 Confidentiality Agreement.......................................45
Section 10.13 Letter of Intent................................................45

                                   ARTICLE XI
                                   Termination

Section 11.1  Right of Termination............................................45
Section 11.2  Effect of Termination...........................................46
Section 11.3  Attorney's Fees, Etc............................................46

                                   ARTICLE XII
                         Assumption and Indemnification

Section 12.1  Assumption......................................................47
Section 12.2  Indemnification.................................................47

                                  ARTICLE XIII
                  Limitations on Representations and Warranties

Section 13.1  Disclaimers of Representations and Warranties...................54
Section 13.2  Waiver of Texas DTPA............................................55
Section 13.3  Casualty Loss...................................................55
Section 13.4  Exclusive Remedies..............................................56

                                   ARTICLE XIV
                                  Miscellaneous

Section 14.1  HSR Act.........................................................56
Section 14.2  Expenses........................................................57
Section 14.3  Independent Investigation.......................................57
Section 14.4  Document Retention..............................................57
Section 14.5  Entire Agreement................................................57
Section 14.6  Waiver..........................................................58
Section 14.7  No Solicitation.................................................58
Section 14.8  Publicity.......................................................58
Section 14.9  Captions........................................................58
Section 14.10 No Third Party Beneficiaries....................................58
Section 14.11 Assignment......................................................58
Section 14.12 Governing Law...................................................58
Section 14.13 Notices.........................................................59
Section 14.14 Severability....................................................59
Section 14.15 Counterpart Execution...........................................59
Section 14.16 Authority of BSHP...............................................60

                                      -iii-



Section 14.17 W.T. Carter & Bro...............................................60
Section 14.18 Champion C-2....................................................60
Section 14.19 Guaranty Agreement..............................................61
Section 14.20 Joint Operating Agreement/AMI...................................61


Schedule I -- Working Interest Owners
Schedule II -- Selling Stockholders
Exhibit "A" -- Producing Leases
Exhibit "B" -- Camden Tram Leases
Exhibit "C" -- Center Grove Leases
Exhibit "D" -- North Double A Portion/Camden Tram Leases
Exhibit "E" -- Double A Leases
Exhibit "F" -- Assignment, Bill of Sale and Conveyance
Exhibit "G" -- Guaranty
Exhibit "H" -- Plat
Exhibit "I" -- Form of Locke Purnell Opinion
Exhibit "J" -- Form of Vinson & Elkins L.L.P. Opinion
Schedule 2.3 -- Net Revenue and Working  Interests;  Allocated Values;  Sellers'
Interests  Schedule 5.1(l) -- Laws and  Regulations  Schedule 5.1(p) -- Consents
Schedule 5.3(d) -- Financial Statements Schedule 5.3(n) -- Insurance


                                      -iv-








                         AGREEMENT FOR PURCHASE AND SALE


         This  Agreement  for  Purchase and Sale (the  "Agreement")  is made and
entered  into as of the 31st day of January,  1996,  by and among those  parties
identified  on Schedule I attached  hereto  (individually,  a "Working  Interest
Owner"  and  collectively,   the  "Working  Interest  Owners"),   those  parties
identified on Schedule II attached hereto (individually, a "Selling Stockholder"
and collectively, the "Selling Stockholders"),  Black Stone Oil Company, a Texas
corporation  ("Operator")  and  Comstock Oil & Gas,  Inc., a Nevada  corporation
("Buyer") and a wholly owned  subsidiary of Comstock  Resources,  Inc., a Nevada
corporation ("Guarantor").

                              W I T N E S S E T H:

         WHEREAS,  the Working Interest Owners own the Purchased  Subject Assets
(as hereinafter  defined) and the Selling  Stockholders own the Purchased Shares
(as hereinafter defined);

         WHEREAS,  the Working Interest Owners are willing to sell to Buyer, and
Buyer is willing to purchase  from the Working  Interest  Owners,  the Purchased
Subject Assets,  and the Selling  Stockholders are willing to sell to Buyer, and
Buyer is  willing to  purchase  from the  Selling  Stockholders,  the  Purchased
Shares, all upon the terms and subject to the conditions  hereinafter set forth;
and

         WHEREAS,  Buyer is a  wholly  owned  subsidiary  of  Guarantor  and the
execution,  delivery and performance by Buyer of its obligations  hereunder will
benefit Guarantor, directly or indirectly, and the guarantee by Guarantor of the
obligations of Buyer hereunder is in the best interest of Guarantor.

         NOW, THEREFORE,  in consideration of the mutual benefits derived and to
be  derived  from  this  Agreement,  and upon the  representations,  warranties,
covenants and agreements contained herein, the Parties hereby agree as follows:

                                    ARTICLE I

                          Construction and Definitions

         Section 1.1 Separate  Agreement With Each Seller.  This Agreement shall
be construed as a separate  agreement between Buyer and each Seller with respect
to each Seller's  interest in the Purchased  Subject Assets and Purchased Shares
as set forth in







Schedule 2.3.  Except as provided in the last sentence of Section  12.2(f),  the
obligations  of each Seller  hereunder  and under each  instrument  executed and
delivered in connection  herewith  shall be several and not joint or collective.
This  Agreement  shall be binding upon each Seller that executes this  Agreement
regardless of whether this  Agreement is executed by all of the parties named as
Seller  herein.  In the event that any of the parties  named as a Seller  herein
owning  interests in the Purchased  Subject  Assets or Purchased  Shares fail to
execute this Agreement on or before 5:00 p.m. (central standard time) on January
30, 1996, Buyer, without any liability to Sellers whatsoever, may terminate this
Agreement by notice in writing to Seller given not later than 5:00 p.m. (central
standard time) on January 31, 1996.

         Section 1.2 Defined Terms. Capitalized terms used in this Agreement and
not otherwise defined herein or in the recitals to this Agreement shall have the
meanings ascribed to them in this Section 1.2.

         "Additional Contracts" is defined in Section 5.3(g).

         "Adjusted  Purchase  Price" shall mean the  Purchase  Price as adjusted
pursuant to the provisions of Article X.

         "Agencies" is defined in Section 5.3(i).

         "Aggregate    Environmental   Defect   Value"   means   the   Aggregate
Environmental  Defect  Values  for all  Disqualifying  Environmental  Conditions
established  pursuant to Section 4.8 in a manner  consistent  with a  reasonably
prudent operator and in compliance with Environmental Laws.

         "Allocated Values" is defined in Section 2.3.

         "Arbitrator" is defined in Section 10.6(b).

         "Assessment Period" is defined in Section 4.7(a).

         "Assignment" is defined in Section 4.5.

         "BSHP" shall mean Black Stone  Holdings  Partnership,  a Texas  general
partnership.

         "BTU" is defined in Section 10.4(c).

         "Buyer Indemnitees" is defined in Section 12.2(b).

         "C-2 Notice Period" is defined in Section 14.18(a).


                                       -2-





         "C Year" is defined in Section 7.7.

         "Camden Tram JOA" shall mean that  certain  joint  operating  agreement
described in Exhibit "B".

         "Camden  Tram  Leases"  shall  mean the  oil,  gas and  mineral  leases
described  in Exhibit "B",  insofar as such Leases cover the lands  described in
Exhibit "B".

         "Camden  Tram  Interest"  shall mean an  undivided  30% of the  Working
Interest  Owners' and Operator's  right,  title and interest as of the Effective
Time in and to the Camden  Tram  Leases,  together  with a like  interest in all
contracts and other  agreements  applicable to said Leases insofar as they cover
such lands.

         "Casualty Loss" is defined in Section 13.3(b).

         "Center  Grove  JOA"  shall  mean a  joint  operating  agreement  to be
executed by Working Interest Owners, Buyer and Operator,  as operator,  covering
the Center Grove Area outlined on Exhibit H and in the substantially the form of
the Camden Tram JOA.

         "Center  Grove  Leases"  shall  mean the oil,  gas and  mineral  leases
described  in Exhibit "C",  insofar as such Leases cover the lands  described in
Exhibit "C".

         "Center  Grove  Interest"  shall mean an  undivided  30% of the Working
Interest  Owners' and Operator's  right,  title and interest as of the Effective
Time in and to the Center Grove  Leases,  together  with a like  interest in all
contracts and other  agreements  applicable to said Leases insofar as they cover
such lands.

         "Claim Notice" is defined in Section 12.2(f)(i)(A).

         "Closing"  shall mean the  consummation of the purchase and sale of the
Purchased  Subject  Assets and Purchased  Shares  pursuant to this  Agreement as
provided in Article X.

         "Closing Date" shall mean May 1, 1996,  unless another date for Closing
is mutually agreed to in writing by the Parties.

         "Closing Working Capital" shall mean an amount of Working Capital equal
to the following determined in accordance with GAAP:

               (i) all revenues from the Operator Subject Assets attributable to
          the period from the Effective Time until the Closing Date, less




                                       -3-








               (ii)  all  costs  and  expenses  (including  rentals,  royalties,
          production and severance taxes,  capital  expenditures (other than the
          Excluded  Capital Costs),  lease operating  expenses  authorized under
          joint operating agreements  applicable to the Operator Subject Assets)
          that are  attributable to the Operator Subject Assets and attributable
          to the period of time from the Effective  Time until the Closing Date,
          less

               (iii)  an  amount  equal to all  operating  fees  which  would be
          authorized  under the joint  operating  agreements  applicable  to the
          Operator  Subject Assets if Operator were not the operator  thereunder
          attributable  to the period  from the  Effective  Time to the  Closing
          Date, plus

               (iv) the amount of any suspense  accounts  held by Operator as of
          the Closing Date.

In determining  Closing  Working Capital there shall not be included in revenues
any  operating  fees and drilling  fees earned by Operator  under any  operating
agreement  or  drilling  contract  or any  interest  earned by  Operator  on any
accounts.

         "Code" shall mean the Internal Revenue Code of 1986, as amended.

         "Confidentiality Agreement" is defined in Section 10.12.

         "Contracts"  shall  mean all  contracts,  agreements,  leases and other
arrangements used or useful in connection with the Producing Leases, insofar and
only insofar as they apply to the Producing Leases.

         "Defensible Title" is defined in Section 4.2.

         "Disqualifying  Environmental  Condition"  shall mean the presence,  as
determined  by the  Environmental  Assessment,  of (i) a material  violation  of
Environmental  Laws in connection  with the  operation of the Subject  Assets or
(ii) a material  amount of Regulated  Substances  in the soil,  groundwater,  or
surface water in, on, at, or under a Subject Asset in a manner or quantity:  (A)
which is required by Environmental  Laws or by any applicable action or guidance
levels  or  other  standards  published  by  any  Governmental  Authority  to be
remediated;  or (B) for which a permit or closure  plan that is  required  under
Environmental  Laws has not been  obtained.  Well plugging and  abandonment  and
drill  site  restoration  obligations  customarily  taken  at the  time  of well
plugging and abandonment,  shall not constitute a  "Disqualifying  Environmental
Condition for wells on Exhibit A.

         "Documents" is defined in Section 14.4.

         "DTPA" is defined in Section 13.2(a).



                                       -4-









         "Double A Interest" shall mean all of the Working  Interest Owners' and
Operator's  right,  title and  interest in and to the Double A Leases,  together
with a like interest in all contracts  and other  agreements  applicable to said
Leases insofar as they cover such lands.

         "Double A Leases" shall mean the oil, gas and mineral leases  described
in Exhibit "E", insofar as such Leases cover the lands described in Exhibit "E".

         "Easements"  shall  mean  all  easements,  rights-of-way,   servitudes,
permits, licenses, franchises and other estates or similar rights and privileges
to the extent related to or used in connection with the Producing Leases.

         "Escobeda  Title  Matter"  shall mean the  alleged  overlapping  of the
Bartolo Escobeda League, A-30 with the Thomas Colville League,  A-16, the Andrew
Wyllie  One-Quarter  League,  A-84 and the Cyrus  Thompson  One-Quarter  League,
A-563, Polk County, Texas.

     "Effective  Time" shall mean 7:00 a.m.  Central Standard Time on January 1,
1996.

         "Environmental Assessment" is defined in Section 4.7(a).

         "Environmental Consultant" is defined in Section 4.7(a).

         "Environmental  Deductible  Balance" shall mean the amount,  if any, by
which  $250,000  exceeds  the  Aggregate   Environmental  Defect  Value  of  all
Disqualifying  Environmental  Conditions on Producing  Properties not treated as
Excluded Assets pursuant to Section 4.9(a)(i).

         "Environmental Defect Notice" is defined in Section 4.8(a).

         "Environmental  Defect Value" means the net present  value  (determined
based on a 10% discount rate compounded  annually) of the cost to correct in the
most cost effective manner reasonably available any Disqualifying  Environmental
Condition established pursuant to Section 4.8.

         "Environmental Laws" shall mean all laws, ordinances,  statutes, codes,
rules, regulations,  agreements,  judgments, orders, and decrees, now in effect,
promulgated,  or amended, of any Governmental Authority,  relating to pollution,
the  protection  or  regulation  of  human  health,  natural  resources,  or the
environment,  or the  emission,  discharge,  release  or  threatened  release of
pollutants,   contaminants,   chemicals,  or  industrial,   toxic  or  hazardous
substances or waste or Regulated  Substances  into the  environment  (including,
without limitation, ambient air, surface water, ground water or land or soil).

         "Environmental Matters" is defined in Section 12.2(a).

                                       -5-






         "Equipment"  shall  mean  all  personal  property,   wells,  equipment,
materials,  fixtures and improvements located on and used in connection with the
Producing Leases or the production, treatment, sale, or disposal of hydrocarbons
or waste produced therefrom or attributable thereto.

         "ERISA" is defined in Section 5.3(m).

         "Excluded Assets" shall mean the following:  (a) any and all corporate,
financial, tax, interpretative geological,  interpretative geophysical and legal
records of Seller, (b) any and all financial,  tax,  interpretative  geological,
interpretative  geophysical  and legal  records of  Operator,  except those that
relate to the Subject Assets,  (c) any and all geophysical  data of Seller or of
Operator,  except for Operator's  interest in certain geophysical data described
in Section  7.4,  (d) any and all refunds of costs,  taxes or expenses  borne by
Seller or Operator  attributable  to the period prior to the Effective Time, (e)
any and all proceeds from the  settlements of contract  disputes with purchasers
of oil, gas or other  hydrocarbons from the Producing Leases,  including without
limitation  settlements  of take-or-pay  disputes,  insofar as said proceeds are
attributable  to periods of time prior to the  Effective  Time,  (f) any and all
fee, mineral, royalty,  overriding royalty, and other similar interests owned by
Seller or Operator;  (g) any and all interests in the  Livingston gas processing
plant, (h) any and all interests in the Camp Ruby gas gathering system including
all  pipelines,  rights  of way,  easements  and  road  use  agreements  used in
connection with gathering gas from the Subject  Assets,  (i) an undivided 50% of
Seller's  and  Operator's  right,  title and  interest in and to the Black Stone
Champion International C No. 1, Black Stone - Carter E No. 11, and Black Stone -
Alabama  Coushatta No. 6 Lease Units (as  designated  on Exhibit A),  insofar as
such right,  title and interest are attributable to depths above 4,000 feet, (j)
subject to the  provisions of Section  14.18,  the Champion C-2 Assets,  (k) any
interest in the Subject  Assets  which  becomes an  Excluded  Asset  pursuant to
Sections 4.9 or 13.3,  and (l) any and all assets (real or personal)  related to
the  foregoing  items (a)  through (k)  including  any and all rights to use the
Easements insofar as they are useful in connection  therewith or with the leases
described in Exhibits B, C and D.

     "Excluded  Capital  Costs" shall mean all capital costs  incurred to drill,
complete, and equip to the point of delivery the Champion International C No. 1,
Carter E No. 11, Alabama Coushatta No. 5 and Alabama Coushatta No. 6 wells.

         "Existing Encumbrances" is defined in Section 4.5.

         "Final Settlement Date" is defined in Section 10.6(a).

         "Final Statement" is defined in Section 10.6(b).





                                       -6-








         "Financial Statements" is defined in Section 5.3(d).

     "GAAP" shall mean generally  accepted  accounting  principles  consistently
applied.

         "Governmental  Authority" shall mean the United States, the states, the
counties,  the cities, or any other political  subdivisions in which the Subject
Assets  are   located,   and  any  other   political   subdivision,   agency  or
instrumentality  (including the Texas Natural Resource  Conservation  Commission
and  the  Texas  Railroad  Commission)  exercising   jurisdiction  over  Seller,
Operator, the Subject Assets, or the operation of the Subject Assets.

         "HSR Act" shall mean the Hart-Scott-Rodino  Antitrust  Improvements Act
of 1976, as amended.

         "Hydrocarbons" is defined in Section 4.5(b).

         "Indemnified Party" is defined in Section 12.2(g).

         "Indemnifying Party" is defined in Section 12.2(g).

         "Information" is defined in Section 4.7(d).

         "Intellectual Property" is defined in Section 5.3(k).

         "Losses" is defined in Section 12.2(d).

     "Lease Unit" shall mean, for each well comprising the Subject  Assets,  the
corresponding  lease unit described in Exhibit A; provided,  that the Lease Unit
for the  Alabama  Coushatta  No. 7 well  shall  be the  same as for the  Alabama
Coushatta  No. 4 well,  and the Lease Unit for the Alabama  Coushatta No. 8 well
shall be the same as for the Alabama Coushatta No. 6 well.

         "Net Revenue Interest" is defined in Section 4.2(a).

         "North Double A  Portion/Camden  Tram Interest" shall mean an undivided
30% of the Working Interest Owners' and Operator's right,  title and interest as
of the Effective Time in and to the North Double A  Portion/Camden  Tram Leases,
insofar as such Leases cover the lands described in Exhibit "D", together with a
like interest in all contracts  and other  agreements  applicable to said Leases
insofar as they cover such lands.

         "North  Double A JOA"  shall  mean a joint  operating  agreement  to be
executed by Working Interest Owners, Buyer and Operator,  as operator,  covering
the North Double A Area outlined on Exhibit H and in the  substantially the form
of the Camden Tram JOA.



                                       -7-









         "North Double A Portion/Camden Tram Leases" shall mean the oil, gas and
mineral leases described in Exhibit "D".

         "Notice of Disagreement" is defined in Section 10.6(a).

         "Notice Period" is defined in Section 12.2(g).

         "Operator" shall mean Black Stone Oil Company, a Texas corporation.

         "Operator  Subject  Assets"  shall mean those  Subject  Assets owned by
Operator only.

         "Producing Leases" shall mean the oil, gas and mineral leases described
in  Exhibit  "A",  insofar  and only  insofar  as such  leases  cover  the lands
described in Exhibit "A".

         "Producing  Properties"  shall mean all of the right title and interest
of  the  Sellers  and  Operator  in  and to  the  Producing  Leases,  Easements,
Equipment, Contracts and Records.

         "Purchase Price" shall mean $71,500,000.

         "Purchase Price Adjustments" is defined in Section 10.4(e).

          "Purchased  Subject Assets" shall mean the Subject Assets,  other than
the Operator Subject Assets.

          "Purchased Shares" shall mean all of the issued and outstanding shares
of common stock, $.10 par value, of Operator owned by Selling Stockholders.

         "Records"  shall mean all books,  records,  files,  muniments of title,
reports  and  similar  documents  and  materials  that relate to Operator or the
Producing Properties, Easements, Equipment or Contracts except those that relate
to the Excluded Assets.

          "Regulated Substances" shall mean: (i) any hazardous substance defined
as such under  Section  9601(14) of the  Comprehensive  Environmental  Response,
Compensation,  and Liability Act of 1980, 42 U.S.C.  ss.9601, et. seq.; and (ii)
any oil and gas exploration and production waste,  hydrocarbon-contaminated soil
or groundwater,  or naturally occurring radioactive material ("NORM") in soil or
equipment that is required to be remediated under applicable  Environmental Laws
at the time of discovery.

         "S Year" is defined in Section 7.7.

          "Seller"  shall  mean an  individual  Selling  Stockholder  or Working
Interest Owner.




                                       -8-








          "Sellers"  shall mean all Selling  Stockholders  and Working  Interest
Owners.

         "Seller's Response" is defined in Section 4.4(a).

         "Selling  Stockholder"  shall mean an  individual  party  identified on
Schedule II attached hereto.

         "Selling Stockholder Indemnitees" is defined in Section 12.2(a).

         "Statement" is defined in Section 10.5.

         "Stockholder Indemnitors" is defined in Section 12.2(c).

         "Subject   Assets"  shall  mean  the   following:   (i)  the  Producing
Properties,  (ii) the Camden Tram Interest, the (iii) the Center Grove Interest,
(iv) the North  Double A  Portion/Camden  Tram  Interest,  and (v) the  Double A
Interest, but shall not include any of the Excluded Assets.

         "Tax  Losses"  means  any  Losses   arising  from  the  breach  of  the
representations,  warranties and covenants contained in Sections 5.2(f),  5.3(j)
and 7.7 or Taxes of Operator resulting from the creation and distribution of the
stock of any subsidiary of Operator pursuant to Section 7.4(b).

         "Taxes"  shall  mean  all  taxes,   charges,   fees,  levies  or  other
assessments including, without limitation,  income, excise, severance, property,
withholding,  sales and franchise  taxes,  imposed by the United States,  or any
state, county, local or foreign government or subdivision or agency thereof, and
including any interest, penalties or additions attributable thereto.

         "Title  Benefit"  shall mean that a Working  Interest Owner or Operator
owns a Net Revenue Interest in any Producing  Property in excess of the interest
shown in Schedule 2.3 for such Producing Property.

         "Title Consultant" is defined in Section 4.4(a).

         "Title Defect" is defined in Section 4.2.

         "Title Defect Notice" is defined in Section 4.3.

         "Title Examination Period" is defined in  Section 4.1.




                                       -9-








         "Total Defect Adjustment" shall mean the aggregate of (i) the Aggregate
Environmental  Defect  Value,  (ii) the value of all Title  Defects  asserted in
accordance  with  Article  IV and (iii)  the  Allocated  Value of all  Producing
Properties that have become Excluded Assets pursuant to Sections 4.9 or 13.3.

         "TRPA" is defined in Section 13.5.

         "Working Capital" shall mean all cash,  accounts  receivable,  accounts
payable and other items of working capital as determined pursuant to GAAP.

         "Working Interest" is defined in Section 4.2(a).

         "Working  Interest Owner" shall mean an individual  party identified on
Schedule I attached hereto.

         "Working Interest Owner Indemnitees" is defined in Section 12.2(a).

                                   ARTICLE II

                                Purchase and Sale

         Section  2.1  Agreement  to  Sell  and  Purchase.  Subject  to  and  in
accordance  with the terms and  conditions  of this  Agreement,  Buyer agrees to
purchase from (i) the Selling  Stockholders  the  Purchased  Shares and (ii) the
Working  Interest Owners the Purchased  Subject  Assets,  for the total Purchase
Price as adjusted  pursuant to the provisions of Article X, and (x) each Selling
Stockholder,  severally  and not jointly,  agrees to sell to Buyer the number of
Purchased  Shares indicated on Schedule II, and (y) each Working Interest Owner,
severally and not jointly,  agrees to sell to Buyer the Purchased Subject Assets
owned by such  Working  Interest  Owner as  indicated on Schedule I, all for the
aggregate  payment to the  Sellers  equal to the  Purchase  Price as adjusted as
provided in Article X.

         Section 2.2 Purchase Price.  The total  consideration  for the sale and
transfer of the Purchased Subject Assets and the Purchased Shares to Buyer shall
be Buyer's payment to Sellers of the Purchase Price, as adjusted pursuant to the
provisions of Article X. The Adjusted  Purchase  Price shall be paid by Buyer to
Sellers at Closing by means of a completed Federal Funds transfer to the account
of BSHP  designated  by BSHP to Buyer in  writing at least two days prior to the
Closing Date for the further account of Sellers.

         Section 2.3  Allocated  Values.  Attached  hereto as Schedule  2.3 is a
schedule  which shows the  following  items (the  "Allocated  Values"):  (i) the
portion  of the  Purchase  Price  allocated  to the  Purchased  Shares  and  the
Purchased  Subject  Assets,  (ii) an  allocation  of the portion of the Purchase
Price for the Purchased Subject Assets among the properties



                                      -10-








which comprise the Purchased  Subject Assets and each Working  Interest  Owner's
interests  therein  and  (iii)  an  allocation  of the  Purchase  Price  for the
Purchased  Shares among the  properties  which  comprise  the  Operator  Subject
Assets.  Each Seller and Buyer agree that the Allocated  Values shall be used to
compute any adjustments to the Purchase Price pursuant to the provisions of this
Agreement,  but shall not be required to use such Allocated Values for any other
purpose.

                                   ARTICLE III

                                 Effective Time

         Section 3.1         Revenues and Expenses.

         (a)  If  the  transactions   contemplated  hereby  are  consummated  in
accordance with the terms and provisions  hereof, the ownership of the Purchased
Subject Assets shall be transferred from each Working Interest Owner to Buyer at
the Closing Date but  effective as of the Effective  Time.  Subject to the other
provisions of this Agreement,  each Working Interest Owner shall (i) be entitled
to all revenues (and related accounts receivable)  attributable to the Purchased
Subject  Assets  owned  by  such  Working  Interest  Owner  (including,  without
limitation,  the  right to all  production,  proceeds  of  production  and other
proceeds),  and (ii)  responsible  for the payment of all expenses  (and related
accounts  payable)  attributable  to the Purchased  Subject Assets owned by such
Working  Interest Owner in each case to the extent the same relate to the period
of time prior to the  Effective  Time.  Subject to the other  provisions of this
Agreement,  Buyer  shall be  entitled  to all  revenues  (and  related  accounts
receivable)  attributable to the Purchased  Subject Assets  (including,  without
limitation,  the  right to all  production,  proceeds  of  production  and other
proceeds), and shall be responsible for the payment of all expenses (and related
accounts payable)  attributable to the Purchased Subject Assets, in each case to
the  extent the same  relate to the period of time from and after the  Effective
Time.

         (b)  If  the  transactions   contemplated  hereby  are  consummated  in
accordance with the terms and provisions  hereof, the ownership of the Purchased
Shares shall be  transferred  from the Selling  Stockholders  to Buyer as of the
Closing Date, but the Purchase  Price of the Purchased  Shares shall be adjusted
as provided in Article X.

                                   ARTICLE IV

                         Title and Environmental Matters

         Section 4.1 Title Examination  Period.  Following the execution date of
this Agreement until 5:00 p.m.,  local time in Houston,  Texas on April 12, 1996
(the "Title Examination Period"), each Working Interest Owner and Operator shall
permit Buyer and



                                      -11-








its representatives and agents to examine, at all reasonable times in Operator's
offices,  all abstracts of title, title opinions,  title files,  ownership maps,
lease files,  assignments,  division  orders,  operating  records and agreements
pertaining to the Subject  Assets insofar as same may now be in existence and in
the possession of Working Interest Owner or Operator.

         Section 4.2 Title  Defects.  The term "Title  Defect",  as used in this
Agreement,   shall   mean   (i)  any   encumbrance,   reversion,   encroachment,
irregularity,  defect in or objection to the title of any Working Interest Owner
to the  interest in any  Producing  Property  set forth  opposite  such  Working
Interest  Owner's  name on  Schedule  2.3 or to the  title  of  Operator  to the
interest in any Producing  Property set forth  opposite its name on Schedule 2.3
which  causes such title,  as of the Closing  Date,  to be less than  Defensible
Title, and (ii) any failure of any Selling  Stockholder to own as of the Closing
Date the Purchased Shares set forth opposite such Selling  Stockholder's name on
Schedule II free and clear of all liens,  pledges,  security interests and other
similar  encumbrances.  For  purposes of this  Agreement,  the term  "Defensible
Title" means that, subject to and except for the Existing Encumbrances:

         (a) Each Working  Interest Owner and Operator by virtue of its interest
in the  Producing  Properties  is (i)  entitled  to  receive  not less  than the
percentage set forth in Schedule 2.3 hereto as the "Net Revenue Interest" of all
Hydrocarbons  produced,  saved and  marketed  from the Lease  Unit for each well
listed on Schedule 2.3 without  reduction,  suspension  or  termination  of such
interest throughout the productive life of such well, except as specifically set
forth in Schedule  2.3, and (ii)  obligated to bear the  percentage of the costs
and expenses relating to the maintenance, development and operation of the Lease
Unit for each well not greater  than the  "Working  Interest"  shown in Schedule
2.3,  without  increase  throughout the productive life of such well,  except as
specifically set forth in Schedule 2.3; and

         (b) The title of each Working  Interest  Owner and Operator is free and
clear of all liens, pledges, security interests, and other similar encumbrances.

         Section  4.3  Notice of Title  Defects.  If Buyer  discovers  any Title
Defect,  Buyer shall notify BSHP of such alleged  Title Defect  setting  forth a
summary of the alleged Title Defect,  the asserted  value thereof  determined by
Buyer in accordance  with the terms of this Agreement,  and including  copies of
relevant  portions of any title opinions or other title information on which the
alleged  Title  Defect is based (a "Title  Defect  Notice").  Each Title  Defect
Notice  shall be  delivered  by Buyer to BSHP as soon as  practicable  after the
alleged  Title  Defect is  discovered,  but in no event later than 12:00 noon on
April 12, 1996 ; provided  that Buyer shall  notify BSHP on or before 12:00 noon
on March 1, 1996 of any alleged  Title Defect  directly  related to the Escobeda
Title Matter.  Any matters that may otherwise  constitute Title Defects but that
are not  specifically  raised in a Title Defect Notice  delivered prior to 12:00
noon on April 12, 1996 shall be deemed to have been  waived by Buyer,  except to
the extent that any Title Defect constitutes a breach of the special warranty of
title contained



                                      -12-








in the  Assignment  delivered  by Working  Interest  Owners at  Closing  and the
warranty   of  title  made  by  Operator   pursuant   to  Section   5.3(e)(vii).
Notwithstanding the foregoing, any title defect or irregularity directly related
to the Escobeda Title Matter that is not  specifically  raised in a Title Defect
Notice delivered by Buyer to BSHP on or before 12:00 noon on March 1, 1996 shall
be deemed waived by Buyer. Operator or any Working Interest Owner shall have the
option, but not the obligation, to attempt to cure any Title Defect.

         Section 4.4         Determination of and Remedies for Title Defects.

         (a)  Determination  of Title Defects and Defect Values.  Not later than
12:00 noon on April 26, 1996,  BSHP shall  notify  Buyer  whether it agrees with
Buyer's  claimed  Title  Defects  and/or the  proposed  defect  values  therefor
("Seller's  Response").  If BSHP does not agree with any  claimed  Title  Defect
and/or proposed  defect value  therefor,  then the parties shall enter into good
faith  negotiations  and shall  attempt to agree on such  matters.  The  parties
hereby  agree that there is no defect  value  with  respect to Title  Defects on
Subject Assets other than the Producing Properties.  If the parties cannot reach
agreement  concerning  either the  existence of a Title Defect or a defect value
within ten (10) days after  Buyer's  receipt of Seller's  Response,  upon either
party's  request,  the parties  shall  mutually  agree on and employ an attorney
experienced in title examination  ("Title  Consultant") to resolve all points of
disagreement  relating to Title Defects and defect  values;  provided,  however,
that if at any time any Title  Consultant  so chosen fails or refuses to perform
hereunder,  a new Title Consultant  shall be chosen by the parties.  The cost of
any such Title Consultant  shall be borne 50% by Sellers and 50% by Buyer.  Each
party shall  present a written  statement  of its  position on the Title  Defect
and/or  defect  value in question to the Title  Consultant  within five (5) days
after the Title  Consultant is selected,  and the Title  Consultant shall make a
determination  of all points of  disagreement  in accordance  with the terms and
conditions  of this  Agreement  within ten (10) business days of receipt of such
position  statements.  The  determination  by  the  Title  Consultant  shall  be
conclusive  and binding on the  parties,  and shall be  enforceable  against any
party in any court of competent  jurisdiction.  If  necessary,  the Closing Date
shall be deferred  until the Title  Consultant has made a  determination  of the
disputed  issues,  and all  subsequent  dates  and  required  activities  having
reference  to the  Closing  Date shall be  correspondingly  deferred;  provided,
however,  that, unless each Seller and Buyer mutually agree to the contrary, the
Closing  Date shall not be  deferred in any event for more than thirty (30) days
beyond the original Closing Date.

         (b) Remedies for Title Defect.  With respect to any Title Defect that a
Seller  elects  not to cure or that a  Seller  fails  to cure at or prior to the
Closing,  such Seller and Buyer shall  reduce the  Purchase  Price by the agreed
upon defect value of such Title Defect,  taking into consideration the Allocated
Value of the Producing  Property  subject to such Title  Defect,  the portion of
such  Producing  Property  subject to such Title  Defect and the legal effect of
such Title Defect on the Producing Property affected thereby; provided, however,
that if such Title  Defect is the result of a  discovery  by Buyer that  Working
Interest Owner



                                      -13-








or  Operator  owned,  as of the  Effective  Time,  a Net  Revenue  Interest in a
Producing  Property  that is less  than the Net  Revenue  Interest  set forth on
Schedule  2.3,  then Buyer and Seller agree that the  proportion of reduction to
the Purchase Price shall be equal to the product of the Allocated  Value of such
Producing Property and the percentage  reduction in such Net Revenue Interest as
a result of such Title Defect, and provided,  further,  that if the defect value
has been determined in accordance with Section  4.4(a),  the Title  Consultant's
determination will control.  Notwithstanding  anything to the contrary contained
herein, there shall be no reduction to the Purchase Price for Title Defects with
respect to any well on a Lease  Unit  pursuant  to the terms of  Section  4.4(b)
unless and until,  and then only to the extent that, the aggregate  value of all
adjustments  for Title  Defects  with  respect to such well on a Lease Unit,  on
well-by-well  basis,  exceeds  one-half of one percent  (1/2%) of the  Allocated
Value of such well on such Lease Unit.

         Section 4.5 Special Warranty of Title. The documents to be executed and
delivered by each Working  Interest  Owner to Buyer,  transferring  title to the
Purchased  Subject Assets as required hereby,  including the Assignment and Bill
of Sale attached hereto as Exhibit "E" (the  "Assignment"),  shall be subject to
the Existing  Encumbrances and without warranty of title of any kind whatsoever,
express,  implied or statutory,  except for matters arising by, through or under
Working Interest Owner. The term "Existing  Encumbrances"  shall mean any of the
following matters to the extent the same are valid and subsisting and affect the
Subject Assets:

          (a) the contracts, agreements, instruments and other matters set forth
in Exhibit A;

         (b) any (i)  undetermined or inchoate liens or charges  constituting or
securing the payment of expenses that were incurred  incidental to  maintenance,
development, production or operation of the Subject Assets or for the purpose of
developing,   producing   or   processing   oil,   gas  or  other   hydrocarbons
(collectively,  "Hydrocarbons")  therefrom or therein,  and (ii)  materialman's,
mechanics', repairman's, employees',  contractors',  operators' or other similar
liens or  charges  for  liquidated  amounts  arising in the  ordinary  course of
business (x) that are not  delinquent  or that will be paid and  discharged by a
Seller  at or  before  Closing,  (y)  which  Buyer  has  agreed to assume or pay
pursuant to the terms hereof, or (z) if delinquent,  that are being contested in
good faith by  appropriate  action,  of which  Buyer will be notified in writing
before Closing;

         (c) any  liens  for taxes and  assessments  not yet  delinquent  or, if
delinquent,  that are being  contested in good faith in the  ordinary  course of
business  and for which a Seller has agreed to pay  pursuant to the terms hereof
or which have been prorated pursuant to the terms hereof;




                                      -14-








         (d) any liens or security  interests  created by law or reserved in oil
and gas leases for  royalty,  bonus or rental,  or created to secure  compliance
with the  terms of the  agreements,  instruments  and  documents  of  record  or
contained  in the Records  that create or reserve to Working  Interest  Owner or
Operator its interests in the Subject Assets;

         (e) any  obligations  or duties  affecting  the  Subject  Assets to any
municipality or public authority with respect to any franchise,  grant,  license
or permit of record or contained in the Records, and all applicable laws, rules,
regulations and orders of any Governmental Authority;

         (f) any (i)  easements,  rights-of-way,  servitudes,  permits,  surface
leases and other rights in respect of surface  operations,  pipelines,  grazing,
hunting, lodging, canals, ditches, reservoirs or the like of record or contained
in the Records,  and (ii) easements for streets,  alleys,  highways,  pipelines,
telephone lines, power lines, railways and other similar rights-of-way of record
or contained in the Records,  on, over or in respect of property owned or leased
by Working  Interest  Owner or Operator or over which Working  Interest Owner or
Operator owns rights-of-way, easements, permits or licenses which do not operate
to interfere  materially with  operations as currently  conducted on the Subject
Assets;

         (g)  all  lessors'  royalties,   overriding   royalties,   net  profits
interests,  carried interests,  production payments,  reversionary interests and
other  burdens on or deductions  from the proceeds of  production  created or in
existence as of the Effective Time that do not operate to reduce the Net Revenue
Interests  of  Working  Interest  Owner or  Operator  or  increase  the  Working
Interests of Working Interest Owner or Operator without a corresponding increase
in the Net Revenue Interests;

         (h) preferential  rights to purchase or similar agreements with respect
to which (i) waivers or consents are obtained from the  appropriate  parties for
the transaction  contemplated  hereby,  or (ii) required notices have been given
for the  transaction  contemplated  hereby to the holders of such rights and the
appropriate  period for asserting such rights has expired without an exercise of
such rights;

         (i) required third party consents to assignments or similar  agreements
with respect to which (i) waivers or consents are obtained from the  appropriate
parties for the transaction  contemplated  hereby, or (ii) required notices have
been given for the transaction contemplated hereby to the holders of such rights
and the  appropriate  period for  asserting  such rights has expired  without an
exercise of such rights;

         (j) all rights to consent by,  required  notices to,  filings  with, or
other  actions  by  Governmental  Authorities  in  connection  with  the sale or
conveyance  of oil and gas  leases or  interests  therein  that are  customarily
obtained subsequent to such sale or conveyance;


                                      -15-






         (k) production  sales contracts;  division orders;  contracts for sale,
purchase,  exchange,  refining or processing of  hydrocarbons;  unitization  and
pooling designations, declarations, orders and agreements; operating agreements;
agreements of development;  area of mutual interest agreements; gas balancing or
deferred  production  agreements;   processing  agreements;   plant  agreements;
pipeline, gathering and transportation agreements;  injection,  repressuring and
recycling agreements;  carbon dioxide purchase or sale agreements; salt water or
other disposal  agreements;  seismic or geophysical permits or agreements to the
extent the same are ordinary and  customary to the oil,  gas,  sulphur and other
mineral exploration, development, processing or extraction business which are of
record or contained in the Records;

          (l) record title to Purchased  Subject Assets of any Working  Interest
Owner being held in the name of Operator; or

          (m)  defects or  irregularities  affecting  the  Subject  Assets  that
individually or in the aggregate do not materially  interfere with the ownership
or operation of the Subject Assets or impair the value of the Subject Assets.

         Section 4.6 Remedies for Title  Benefits.  The Purchase  Price shall be
increased  pursuant to Sections  10.4(a)(iii)  and 10.4(d)  with  respect to all
Title Benefits, in an amount equal to the value of any Title Benefit.  Buyer and
Working Interest Owners agree that the value of any Title Benefit shall be equal
to the  product  of the  Allocated  Value  of the  affected  Lease  Unit and the
percentage  increase  in such Net  Revenue  Interest  as a result of such  Title
Benefit;  provided,  however,  that Buyer  shall have no duty or  obligation  to
advise a Seller of any higher Net  Revenue  Interest  discovered  in Buyer's due
diligence  or  otherwise  coming to Buyer's  attention,  except  where  Buyer is
claiming a Title Defect based upon an increase in Working Interest,  and in such
case Buyer shall  disclose the  existence of any  corresponding  increase in Net
Revenue Interest.

         Section 4.7         Environmental Procedure.

         (a) Each Working Interest Owner and Operator consent to the performance
of, and Buyer  shall  cause to be  performed  on or before  April 12,  1996,  an
environmental  assessment  ("Environmental  Assessment") on all or a part of the
Producing  Properties and agree to allow Buyer or Sound  Environmental,  Inc. or
other  environmental  consultant  or  technical  representatives  that have been
approved  by BSHP  (which  approval  shall not be  unreasonably  withheld)  (the
"Environmental  Consultant") to have access to the Producing Properties for this
purpose at any reasonable time or times prior to April 12, 1996 (the "Assessment
Period").

         (b)  The  scope  of work  for the  Environmental  Assessment  shall  be
mutually  agreed  upon by Buyer and BSHP and the  agreement  of BSHP will not be
unreasonably withheld.


                                      -16-





         (c)  Buyer  shall  bear all  costs  associated  with the  Environmental
Assessment.  Working Interest Owner and Operator understand and acknowledge that
the   Environmental   Assessment  may  involve   subsurface   testing  of  soil,
groundwater,  and any surface water at the Producing  Properties and may involve
soil borings and the collection of groundwater samples by hydropunch,  geoprobe,
or similar  means,  but Buyer shall not  install  groundwater  monitoring  wells
without  the prior  consent of BSHP,  which  consent  shall not be  unreasonably
withheld. Buyer shall be responsible for disposing of any soil cuttings or other
waste  generated by this testing and shall restore the  Producing  Properties at
the end of the Assessment  Period to its condition  prior to the  performance of
the  Environmental  Assessment.  Buyer agrees to indemnify and hold each Working
Interest Owner and Operator harmless from any liability arising from the acts or
omissions of Buyer, its  representatives or the Environmental  Consultant during
the  performance  of the  Environmental  Assessment  WITHOUT REGARD TO THE SOLE,
PARTIAL  OR  CONCURRENT  NEGLIGENCE,  STRICT  LIABILITY,  OR OTHER  FAULT OF ANY
WORKING  INTEREST  OWNER  INDEMNITEE OR OPERATOR,  but in no event for the gross
negligence or willful  misconduct of any Working  Interest  Owner  Indemnitee or
Operator.  No  invasive  testing  or  excavation  other than soil  borings,  the
installation  of groundwater  wells,  and grab samples of surface soil,  surface
water,  or  sediment  approved  by BSHP  pursuant  to  Section  4.7(b)  shall be
undertaken without the prior consent of BSHP.

         (d)  Unless   otherwise   required  by  law,   Buyer  agrees  to  treat
confidentially all reports prepared for Buyer by its Environmental Consultant in
connection  with  the  performance  of the  Environmental  Assessment,  and  the
information contained in such reports  (collectively,  referred to herein as the
"Information").  The  Information  may  only be  used by  Buyer  or  Sellers  in
connection with the  transactions  contemplated by this Agreement.  In the event
that Buyer or its  representatives  become legally  compelled to disclose any of
the  Information,  Buyer shall provide Working  Interest Owner and Operator with
prompt  notice prior to any such  disclosure so that Working  Interest  Owner or
Operator,  if it  disagrees  with  this  obligation  to  disclose,  may  seek  a
protective  order or other  appropriate  remedy and/or waive compliance with any
applicable provisions of this Section 4.7(d).

         (e) Buyer  shall make the  Information  available  to Working  Interest
Owner and Operator and provide Working Interest Owner and Operator copies of the
Information without charge.

         (f) Working  Interest Owner and Operator shall have the right to have a
representative or representatives  accompany the Environmental Consultant at all
times  during the  Environmental  Assessment  and Buyer  agrees to give  Working
Interest  Owner and Operator  verbal  notice not more than 72 hours and not less
than 48 hours before any visits by the Environmental Consultant to the Producing
Properties. Buyer agrees to take and provide to Operator identical split samples
of all sampling done on the Producing Properties.

                                      -17-







          Section 4.8 Determination of Disqualifying Environmental Condition.

          (a) Notice of Environmental  Defects.  To establish the existence of a
Disqualifying Environmental Condition on a Subject Asset, Buyer shall deliver to
BSHP a notice (an  "Environmental  Defect Notice") as soon as practicable  after
discovery of such Disqualifying  Environmental  Condition and in any event prior
to 12:00 noon on April 12,  1996  asserting  the  existence  of a  Disqualifying
Environmental  Condition and including (i) the  Environmental  Assessment  which
must contain a conclusion that a Disqualifying  Environmental  Condition exists,
and which  conclusion  must be  reasonably  substantiated  by the results of the
investigation conducted by the Environmental  Consultant and (ii) a bid from the
Environmental Consultant and another qualified environmental consulting firm for
the  correction of the  Disqualifying  Environmental  Condition in the most cost
effective manner reasonably  available.  As a minimum standard for acceptance by
Working Interest Owner and Operator, such Environmental  Assessment must reflect
that the  Environmental  Consultant  performed  sufficient  invasive testing and
analytical   work  to  delineate   reasonably  the  nature  and  extent  of  the
Disqualifying  Environmental Condition and is further required to contain a site
plan showing the location of all  sampling  events,  boring logs and other field
notes  describing  the  sampling  methods  utilized  and  the  field  conditions
observed, chain-of- custody documentation, laboratory reports, and copies of two
bids for corrective work.

         (b) Seller's Reply to Defect  Notice.  On or before 12:00 noon on April
26, 1996,  the affected  Working  Interest  Owner and/or  Operator shall provide
Buyer with written  notice as to whether it  acknowledges  the existence of each
Disqualifying  Environmental  Condition  asserted  by Buyer in an  Environmental
Defect Notice delivered  pursuant to the terms hereof.  If such Working Interest
Owner or Operator  does not provide  Buyer on or before said time with a written
notice that Working  Interest  Owner or Operator  rejects the  conclusion in the
Environmental  Assessment as to the existence of a  Disqualifying  Environmental
Condition,  such  Working  Interest  Owner or  Operator  shall be deemed to have
acknowledged the existence of a Disqualifying Environmental Condition.

         (c) Buyer's Rights of Acceptance or Appeal. If a Working Interest Owner
or Operator timely rejects the conclusions in the Environmental Assessment, then
Buyer shall have five (5) days after the receipt of this rejection to appeal the
rejection by providing such Working  Interest Owner or Operator within this five
day period  with a written  notice of its  appeal.  If Buyer does not timely and
properly  appeal  within  this  time  period,  Buyer  shall  be  deemed  to have
acknowledged  that no Disqualifying  Environmental  Condition  exists.  If Buyer
accepts or is deemed to accept  that no  Disqualifying  Environmental  Condition
exists, then the parties will proceed to Closing. If Buyer timely appeals, then,
at the sole cost of the unsuccessful party in the appeal process, Buyer and such
Working  Interest Owner or Operator shall each select a consulting firm and then
the two consulting  firms shall mutually agree upon a third firm. The third firm
shall  make  a  determination   whether  the  conclusion  in  the  Environmental
Assessment that a Disqualifying Environmental Condition exists is



                                      -18-








correct and is  supported  by an  investigation  conducted  in  accordance  with
industry-accepted  standards.  The  determination  of the third  consulting firm
shall be final and binding upon Buyer and a Working  Interest  Owner or Operator
as to the  existence  of a  Disqualifying  Environmental  Condition.  The  third
consulting  firm shall also  estimate the cost of correcting  the  Disqualifying
Environmental  Condition in the most cost effective manner reasonably available.
Buyer and the applicable  Working  Interest  Owner or Operator shall  reasonably
cooperate in the appeal process which shall be completed within thirty (30) days
after Buyer gives  Working  Interest  Owner or  Operator  written  notice of its
appeal.  If any  party  fails to  cooperate  in the  appeal  process  or the two
appointed  consultants  cannot agree upon a third consultant,  then either party
may petition the United States District Judge for the Southern District of Texas
then senior in service to designate a qualified and experienced consulting firm.

          Section 4.9 Remedies for a Disqualifying Environmental Condition.

          (a)  With  respect  to  all  Disqualifying   Environmental  Conditions
established pursuant to Section 4.8, the following provisions shall apply.

                  (i) If the  Environmental  Defect  Value of all  Disqualifying
Environmental  Conditions  associated  with a  Producing  Property  exceeds  the
Allocated  Value of such  Producing  Property,  Buyer may elect to exclude  such
Producing Property from this transaction and treat such Producing Property as an
Excluded Asset in which event the Purchase  Price shall be adjusted  downward by
the Allocated Value of such Producing Property.

                  (ii) If the  Environmental  Defect Value of all  Disqualifying
Environmental Conditions associated with a Producing Property exceeds 30% of the
Allocated Value of such Producing  Property,  Working Interest Owner or Operator
may elect to exclude such  Producing  Property from this  transaction  and treat
such  Producing  Property as an Excluded Asset in which event the Purchase Price
shall be adjusted downward by the Allocated Value of such Producing Property.

                  (iii)  If the  Aggregate  Environmental  Defect  Value  of all
Disqualifying  Environmental  Conditions on Producing  Properties not treated as
Excluded Assets pursuant to Section 4.9(a)(i) and (ii) does not exceed $250,000,
Buyer  alone  shall  pay and be  responsible  for the costs of  correcting  such
Disqualifying Environmental Conditions.

                  (iv)  If  the  Aggregate  Environmental  Defect  Value  of all
Disqualifying  Environmental  Conditions on Producing  Properties not treated as
Excluded Assets pursuant to Section 4.9(a)(i) and (ii) exceeds  $250,000,  Buyer
shall  pay  and  be  responsible   for  the  first  $250,000  of  the  Aggregate
Environmental Defect Value and Working Interest Owner and



                                      -19-








Operator shall pay and be  responsible  for the balance of such amount (but such
payments shall not be included as a part of the Closing Working Capital).

          (b) Operator shall have the right,  but not the obligation,  on behalf
of itself and any  affected  Working  Interest  Owner to cure any  Disqualifying
Environmental  Condition prior to Closing. The Environmental Defect Value of any
Disqualifying  Environmental  Condition  cured by  Operator in  accordance  with
Section  4.10 prior to Closing  shall be  applied  against  the amount for which
Working Interest Owner and Operator are responsible under Section 4.9(a)(iv).

         (c) If the Operator  does not correct any  Disqualifying  Environmental
Defect prior to the  Closing,  then Buyer shall  proceed  with due  diligence in
accordance  with industry  accepted  practices  after the Closing to correct any
Disqualifying Environmental Conditions in accordance with Section 4.10 for which
it is  responsible  under  Sections  4.9(a)(iii)  and (iv). At the Closing,  the
Purchase  Price  shall be adjusted  downward by the amount of the  Environmental
Defect Value for which Working Interest Owner and Operator are responsible under
Section 4.9(a)(iii), less any credit to which they are entitled under 4.9(b).

         Section 4.10 Correction of a Disqualifying  Environmental Condition. To
correct  a  Disqualifying  Environmental  Condition  involving  a  violation  of
Environmental  Laws, the party  responsible  for  correcting  the  Disqualifying
Environmental  Condition  under the provisions of Sections  4.9(b) and (c) shall
cure  the  violation  and  provide  reasonable   evidence  to  the  other  party
substantiating  that the  violation has been cured.  To correct a  Disqualifying
Environmental  Condition involving Regulated  Substances,  the responsible party
shall perform the type of remediation  that a prudent operator would perform and
shall  provide  the other  party with  written  assurance  from the  appropriate
Governmental Authority that no further action is required in connection with the
Regulated  Substances,  or if no such written assurance is customarily  obtained
under normal procedures  observed by prudent  operators,  a certification from a
qualified  consultant  that the  appropriate  remediation has been performed and
that no further response is required under applicable Environmental Laws.


                                    ARTICLE V

             Representations and Warranties of Sellers and Operator

         Section 5.1  Representations and Warranties of Working Interest Owners.
Each Working Interest Owner (severally and not jointly)  represents and warrants
with respect to itself only and its interest in the Purchased  Subject Assets on
the date hereof and on the Closing Date as follows:




                                      -20-








          (a) Existence. If Working Interest Owner is a corporation,  it is duly
organized,  validly existing and in good standing under the laws of the state of
its  incorporation.  If  Working  Interest  Owner is a  partnership,  it is duly
organized  and validly  existing  under the laws of the state of its  formation.
Working  Interest Owner has full legal power,  right and authority to own, lease
and operate  its  properties  and to carry on its  business as such is now being
conducted and as contemplated to be conducted.

         (b) Legal Power.  Working  Interest Owner has the legal power and right
to enter into and  perform  this  Agreement  and the  transactions  contemplated
hereby and, in the case of any Working  Interest Owner who is an individual,  no
joinder by or consent of Working Interest Owner's spouse is required  hereunder.
The  execution and delivery of this  Agreement  and the  documents  contemplated
hereby, and the consummation of the transactions  contemplated by this Agreement
will not violate, nor be in conflict with:

          (i) any provision of Working  Interest Owner's articles or certificate
of incorporation, by-laws or partnership agreement, as applicable; or

          (ii) any  judgment,  order,  ruling or decree  applicable  to  Working
Interest  Owner or the Purchased  Subject  Assets or any law, rule or regulation
applicable to Working Interest Owner or the Purchased Subject Assets.

          (c)  Execution.  The execution and delivery of this  Agreement and the
other  documents  contemplated  hereby and the  performance by Working  Interest
Owner of the  transactions  contemplated  hereby and thereby  have been duly and
validly  authorized  by  all  requisite  corporate  or  partnership  action,  as
applicable,  on the part of each Working Interest Owner that is a corporation or
partnership.  This Agreement constitutes the legal, valid and binding obligation
of Working Interest Owner, enforceable in accordance with its terms, except that
(i)  enforcement  may be  subject  to  bankruptcy,  insolvency,  reorganization,
moratorium,  fraudulent  conveyance or similar laws affecting  creditors' rights
generally,  (ii) the remedies of specific  performance and injunctive relief are
subject to certain equitable  defenses and to the discretion of the court before
which  any  proceedings  may be  brought,  and (iii)  rights to  indemnification
hereunder may be limited under applicable securities laws.


         (d) Brokers.  No broker or finder has acted for or on behalf of Working
Interest  Owner  in  connection   with  this   Agreement  or  the   transactions
contemplated by this Agreement. No broker or finder is entitled to any brokerage
or  finder's  fee,  or to  any  commission,  based  in any  way  on  agreements,
arrangements or  understandings  made by or on behalf of Working  Interest Owner
for which Buyer has or will have any  liabilities or obligations  (contingent or
otherwise).




                                      -21-








          (e) Bankruptcy. There are no bankruptcy,  reorganization,  arrangement
or similar proceedings  pending, or, to the knowledge of Working Interest Owner,
threatened against Working Interest Owner.

          (f) Suits.  Except for Black Stone Oil Company v. C.C.  Lilley,  Inc.,
there is no suit,  action,  claim,  investigation  or  inquiry  by any person or
entity  or by any  administrative  agency  or  governmental  body and no  legal,
administrative or arbitration proceeding pending or, to the knowledge of Working
Interest  Owner,  threatened  against  Working  Interest  Owner or the Purchased
Subject Assets which, if decided  adversely to the interest of Working  Interest
Owner, would reasonably be expected to have a material adverse affect on the use
or value of the Purchased Subject Assets.

          (g) No  Defaults.  Working  Interest  Owner  has no  knowledge  of any
default with respect to the Producing  Properties  that has not been remedied or
waived and that would have a material adverse effect,  and to the best of BSHP's
knowledge,  the Producing  Properties  are being held,  developed,  operated and
produced  substantially  in  compliance  with the  terms and  conditions  of the
Contracts and all other applicable agreements.

          (h)  Royalties.  All rentals,  royalties  and other  payments due with
respect to the Producing  Properties have been properly and timely paid,  except
those  amounts  in  suspense,  and,  to the  best of  Working  Interest  Owner's
knowledge,  all conditions  necessary to keep the Producing Properties in effect
have been duly performed.

          (i) Taxes. All ad valorem, property, production, severance, excise and
similar  taxes and  assessments  based on or  measured by the  ownership  of the
Purchased  Subject  Assets or the production of  Hydrocarbons  or the receipt of
proceeds  therefrom  on the  Purchased  Subject  Assets that have become due and
payable have been properly and timely paid.

          (j) Non-Resident  Status.  Working Interest Owner is not a nonresident
alien of the United States.

          (k)  Investment.  Prior  to  entering  into  this  Agreement,  Working
Interest  Owner  was  advised  by and  relied  on its own  legal,  tax and other
professional counsel concerning this Agreement, the Purchased Subject Assets and
the value thereof.  Working Interest Owner  acknowledges  that Buyer is entering
into other purchase  agreements with other owners of interests in certain of the
properties  which  are  covered  by this  Agreement,  and  that  the  terms  and
conditions of such  agreements may differ from those  contained  herein and from
those contained among the various other agreements.

          (l) Laws and Regulations.  Except as set forth on Schedule 5.1(l),  to
the best of Working Interest Owner's  knowledge,  the Producing  Properties have
been and currently are



                                      -22-








being  operated  in  compliance,  with all laws,  regulations  and orders of all
Governmental Authorities, except where the failure to so comply would not have a
material  adverse affect on the business  operations,  financial  condition,  or
results of operations of Working Interest Owner or of the Producing Properties.

          (m)  Prepayments  and Gas Balancing.  To the best of Working  Interest
Owner's  knowledge,  it is  receiving on a current  basis the payments  required
under  gas  contracts  or  other  contractual  arrangements  for  the  delivery,
transportation  or sale of natural gas from the  Producing  Properties.  Working
Interest Owner is not obligated under any prepayment arrangement,  "take-or-pay"
contract,  production payment agreement,  well head or plant balancing agreement
or other arrangement to deliver Hydrocarbons at some future time without then or
thereafter  receiving full payment therefor,  and as of the Effective Time there
are no material  "pipeline" or other  imbalances with respect to any contract or
agreement  which would require  settlement by cash from Working  Interest  Owner
sometime in the future.

          (n) Calls on Production. Except as provided in the Contracts listed in
Exhibit A and lessors' rights to take production in kind, no person has any call
upon,  option to  purchase,  right of refusal or similar  unexecuted  right with
respect to the  purchase  of Working  Interest  Owner's  portion of  Hydrocarbon
production from the Producing Properties.

          (o)  Wells  and  Units.  To  the  best  of  Working  Interest  Owner's
knowledge,  every well  comprising a part of the Producing  Properties  has been
drilled and completed within the applicable lease or within the limits otherwise
permitted  by  contract,  pooling or unit  agreement  and by law. To the best of
Working Interest Owner's  knowledge,  no well comprising a part of the Producing
Properties is subject to penalties on allowables  because of any  overproduction
permitted by applicable laws, rules,  regulations or permits,  orders or decrees
of any Governmental Authority, which would prevent such well from being entitled
to its full, legal and regular allowable, from and after the Effective Time.

          (p)  Consents.  Except as provided  in the  instruments  described  on
Schedule  5.1(p),  no consent,  authorization  or approval of any third party is
required under any material agreement to which Working Interest Owner is a party
or to which its interest in the Subject  Assets is bound for the  execution  and
delivery of this Agreement by Working  Interest Owner or the  performance of its
obligations hereunder.

          (q) Governmental Approvals. Neither the execution and delivery of this
Agreement by Working  Interest  Owner nor the  performance  by Working  Interest
Owner of its obligations  hereunder will require any consent,  authorization  or
approval  of, or waiver or  exemption  by,  or  filing  with or notice  to,  any
governmental  agency,  instrumentality  or authority  under any provision of law
applicable to Working Interest Owner, except for (i)



                                      -23-








applicable  filings under the HSR Act, (ii) those required under the instruments
described in Schedule 5.1(p) and (iii) those that are customarily obtained after
the Closing.

         (r) Accuracy of Information Furnished.  To the best of Working Interest
Owner's knowledge, all Contracts with respect to the Producing Properties can be
found either of record in Polk County, Texas or in, or referenced in, Operator's
or  BSHP's  files.  To the  best of  Working  Interest  Owner's  knowledge,  all
Contracts located in Operator's or BSHP's files are true,  accurate and complete
copies.

         Section 5.2  Representations  and  Warranties of Selling  Stockholders.
Each Selling Stockholder  represents and warrants with respect to itself and its
Purchased Shares on the date hereof and on the Closing Date as follows:

         (a) Legal Power.  Selling  Stockholder has the legal power and right to
enter into and perform this Agreement and the transactions  contemplated  hereby
and,  to the extent such  Selling  Stockholder's  spouse  does not execute  this
Agreement,  no joinder by or consent of Selling Stockholder's spouse is required
hereunder.

         (b) Valid and Binding Agreement.  This Agreement  constitutes the valid
and binding agreement of Selling Stockholder, enforceable in accordance with its
terms except that (i) such enforcement may be subject to bankruptcy, insolvency,
moratorium  or similar laws  affecting  creditors'  rights  generally,  (ii) the
remedy  of  specific  performance  and  injunctive  relief  and  other  forms of
equitable relief are subject to certain equitable defenses and to the discretion
of the court before  which any  proceedings  therefor may be brought,  and (iii)
rights to indemnification  hereunder may be limited under applicable  securities
laws.

         (c) Title to Purchased Shares.  Selling  Stockholder (i) owns of record
and  beneficially,  and has good and marketable title to the number of Purchased
Shares set forth opposite his name on Schedule II, free and clear of any and all
liens,  security  interests,  encumbrances,  charges,  adverse claims,  options,
rights,  contracts,  calls or commitments of any character whatsoever,  and (ii)
has the  right to vote  such  shares on any  matters  as to which any  shares of
common  stock of  Operator  are  entitled to vote under the laws of the State of
Texas and Operator's  articles of incorporation and bylaws, free of any right in
any other person.

         (d) No Conflicts. To the best of Selling Stockholder's  knowledge,  the
execution and delivery of this  Agreement by Selling  Stockholder  does not, and
the  performance of its obligations  hereunder will not,  constitute a violation
of, conflict with, or result in a default under,  any agreement or instrument to
which Selling  Stockholder is a party or by which Selling  Stockholder is bound,
or any judgment,  decree or order applicable to Selling  Stockholder which would
have a material adverse effect on Selling Stockholder or its Purchased Shares.



                                      -24-









         (e) Approvals. To the best of Selling Stockholder's  knowledge,  except
for  filings  under the HSR Act,  neither  the  execution  and  delivery of this
Agreement by Selling  Stockholder nor the performance by Selling  Stockholder of
its obligations  hereunder will require any consent,  authorization  or approval
of, or waiver or  exemption  by, or filing  with or notice to, any  governmental
agency,  instrumentality  or authority  under any provision of law applicable to
Selling Stockholder or other third party.

         (f) S  Corporation  Status.  Selling  Stockholder  is not a nonresident
alien of the United States and Selling  Stockholder is either an individual or a
"qualified  subchapter S trust"  within the meaning of sections  1361(c)(2)  and
1361(d) of the Code.

         (g) Brokers.  No broker or finder has acted for or on behalf of Selling
Stockholder in connection with this Agreement or the  transactions  contemplated
by this Agreement.  No broker or finder is entitled to any brokerage or finder's
fee,  or to any  commission,  based in any way on  agreements,  arrangements  or
understandings  made by or on behalf of Selling  Stockholder for which Buyer has
or will have any liabilities or obligations (contingent or otherwise).

         (h)  Investment.   Prior  to  entering  into  this  Agreement,  Selling
Stockholder  was  advised  by and  relied  on  its  own  legal,  tax  and  other
professional counsel concerning this Agreement, the Subject Assets and the value
thereof.  Selling  Stockholder  acknowledges  that Buyer is entering  into other
purchase  agreements with other owners of interests in certain of the properties
which are covered by this  Agreement,  and that the terms and conditions of such
agreements may differ from those contained herein and from those contained among
the various other agreements.

         Section  5.3  Representations  and  Warranties  of  Operator.  Operator
represents  and  warrants on the date hereof and (except as  expressly  provided
herein) on the Closing Date as follows:

         (a) Existence and Good  Standing;  Power and  Authority.  Operator is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Texas,  with all requisite power and authority to own, lease and
operate its  properties  and to carry on its  business  as now being  conducted.
Operator does not have any subsidiaries.  Operator is duly qualified or licensed
as a foreign  corporation and in good standing in each jurisdiction in which the
character  or location of the  property  owned,  leased or operated by it or the
nature of the  business  conducted  by it makes  such  qualification  necessary,
except where the failure to be so duly  qualified  or licensed  would not have a
material  adverse  effect on its  business,  prospects,  financial  condition or
results of operations. Operator is qualified or licensed to transact business as
a foreign corporation in Texas and Louisiana.




                                      -25-








         (b) Due  Authorization;  Enforceability.  Operator  has full  corporate
power, capacity and authority to execute this Agreement and all other agreements
and documents  contemplated hereby. The execution and delivery of this Agreement
and such other  agreements  and  documents by Operator and the  consummation  by
Operator of the  transactions  contemplated  hereby have been duly authorized by
Operator and no other  corporate  action on the part of Operator is necessary to
authorize the  transactions  contemplated  hereby.  This Agreement has been duly
executed and delivered by Operator and constitutes the legal,  valid and binding
obligation of Operator,  enforceable in accordance  with its terms,  except that
(i)  enforcement  may be  subject  to  bankruptcy,  insolvency,  reorganization,
moratorium,  fraudulent  conveyance or similar laws affecting  creditors' rights
generally,  (ii) the remedies of specific  performance and injunctive relief are
subject to certain equitable  defenses and to the discretion of the court before
which  any  proceedings  may be  brought,  and (iii)  rights to  indemnification
hereunder may be limited under applicable securities laws.

         (c) Capital  Stock.  Operator's  authorized  capital stock consists of
1,000,000  shares of common  stock,  $.10 par value,  of which 68,440 shares are
issued and outstanding. All of the Purchased Shares, which constitute all of the
issued and  outstanding  shares of capital stock of Operator,  have been validly
issued and fully paid and are nonassessable and no holder thereof is entitled to
any preemptive rights.  There are no outstanding  conversion or exchange rights,
subscriptions,   options,   warrants,   or  other  arrangements  or  commitments
obligating  Operator  to  issue  any  shares  of  capital  stock  or  any  other
securities.  Other than the articles of incorporation  and bylaws,  there are no
agreements or instruments  among,  or otherwise  governing the relations of, the
shareholders of Operator.

         (d) Financial  Statements.  Set forth on Schedule  5.3(d) is a true and
complete copy of the compiled balance sheet of Operator at December 31, 1994 and
the related income  statement and statement of retained  earnings for the period
then ended and the  unaudited  balance sheet at October 31, 1995 and the related
income  statement and  statement of retained  earnings for the period then ended
(collectively,  the "Financial Statements").  The Financial Statements have been
prepared in accordance with GAAP, and present fairly the financial  condition of
Operator at and as of such dates.

         (e)      Operator Subject Assets.

                  (i) No Defaults. Operator has no knowledge of any default with
respect  to any  Producing  Properties,  the  Contracts  or any  other  material
agreement, which has not been remedied or waived and which would have a material
adverse  effect  on such  Producing  Properties,  and to the best of  Operator's
knowledge,  the Producing  Properties  are being held,  developed,  operated and
produced  substantially  in  compliance  with the  terms and  conditions  of the
Contracts and all other applicable agreements.




                                      -26-








                  (ii)  Royalties.  To the  best of  Operator's  knowledge,  all
rentals,  royalties  and  other  payments  due  with  respect  to the  Producing
Properties have been properly and timely paid, except those amounts in suspense,
and, all  conditions  necessary to keep the Producing  Properties in effect have
been duly performed.

                  (iii) Prepayments and Gas Balancing.  Operator is receiving on
a current basis the payments  required under gas contracts or other  contractual
arrangements  for the delivery,  transportation  or sale of natural gas from its
interest in the Producing Properties. There are no "take-or-pay" prepayments for
which an obligation exists to deliver gas after the Effective Time.  Operator is
not obligated under any material prepayment arrangement, "take-or-pay" contract,
production  payment agreement,  well head or plant balancing  agreement or other
arrangement  to  deliver  Hydrocarbons  at  some  future  time  without  then or
thereafter  receiving full payment therefor,  and as of the Effective Time there
are no material  "pipeline" or other  imbalances with respect to any contract or
agreement  which would  require  settlement by cash from Operator at sometime in
the future.

                  (iv) Calls on Production.  Except as provided in the Contracts
listed in Exhibit A and lessors'  rights to take  production  in kind, no person
has any call upon,  option to purchase,  right of refusal or similar  unexecuted
right with respect to the purchase of Hydrocarbon  production from the Producing
Properties.

                  (v)  Wells and  Units.  To the best of  Operator's  knowledge,
every well  comprising a part of the Producing  Properties  has been drilled and
completed within the applicable  lease or within the limits otherwise  permitted
by contract,  pooling or unit  agreement  and by law. To the best of  Operator's
knowledge,  no well comprising a part of the Producing  Properties is subject to
penalties  on  allowables  after the date hereof  because of any  overproduction
permitted by applicable laws, rules,  regulations or permits,  orders or decrees
of any  governmental  body or agency,  which would  prevent such well from being
entitled  to its full,  legal  and  regular  allowable,  from and after the date
hereof, as prescribed by any court or governmental body or agency.

                  (vi) Taxes. All ad valorem, property,  production,  severance,
excise and similar taxes and  assessments  based on or measured by the ownership
of the Operator  Subject Assets or the production of Hydrocarbons or the receipt
of proceeds  therefrom on the Operator  Subject  Assets that have become due and
payable have been properly and timely paid.

                  (vii)  Title.  At  the  Closing,  Operator's  interest  in the
Operator Subject Assets is free and clear of all claims,  liens and encumbrances
created by, through or under Operator, except for the Existing Encumbrances.




                                      -27-








          (f) Non-Resident  Status.  Operator is not a nonresident  alien of the
United States.


          (g) Additional Contracts.  Except with respect to the Excluded Assets,
the Contracts listed on Exhibit A and those having a term of 90 days or less (or
terminable  on  notice of 90 days or less),  there  are no  material  contracts,
arrangements  and  commitments  (whether oral or written) to which Operator is a
party or by which any of  Operator's  assets or  business  are bound  including,
without limitation,  contracts,  arrangements or commitments which relate to (1)
the sale, lease or other  disposition by Operator of all or any substantial part
of the business or assets of Operator  (otherwise than in the ordinary course of
business),  (2) the  purchase or lease by Operator  of a  substantial  amount of
assets  (otherwise than in the ordinary  course of business),  (3) the supply by
Operator  of any  customer's  requirements  for any oil,  gas or other  goods or
services or the  purchase by Operator of its  requirements  for any item or of a
vendor's output of any item, in each case in which the aggregate annual payments
to Operator by such customers or by Operator to such vendor exceed $25,000,  (4)
lending or advancing  funds by Operator,  (5) borrowing of funds or  guarantying
the  borrowing of funds by any other person,  whether under an indenture,  note,
loan agreement or otherwise, (6) any transaction or matter with any affiliate of
Operator,  (7)  noncompetition  or employment,  or (8) any other matter which is
material to the  business,  assets or  operations  of  Operator  (other than any
Contracts) ("Additional Contracts").

          (h) No  Violations.  The execution  and delivery of this  Agreement by
Operator and the consummation of the transactions  contemplated  hereby will not
(a) violate any  provision  of its  articles of  incorporation  or bylaws or (b)
violate any statute, rule, regulation,  judgment,  order or decree of any public
body or authority by which Operator or its properties or assets are bound.

          (i) Litigation and Related Matters. Except for Black Stone Oil Company
v. C.C. Lilley, Inc., there are no actions, suits, proceedings or investigations
pending against  Operator or, to the knowledge of Operator,  threatened  against
Operator,  Operator's business or any property or rights of Operator,  at law or
in  equity,  before  or by any  court  or  federal,  state,  municipal  or other
governmental department,  commission,  board, bureau, agency or instrumentality,
domestic or foreign  ("Agencies").  Operator  is not  subject to any  continuing
court or Agency order, writ, injunction or decree applicable specifically to the
business,  operations  or assets of Operator or employees  of  Operator,  nor in
default with respect to any order,  writ,  injunction  or decree of any court or
Agency with respect to its assets, business,  operations or employees. There are
no worker's  compensation  claims  outstanding  against  Operator as of the date
hereof.




                                      -28-








         (j)      Taxes.

                  (i)  Operator and the Selling  Stockholders  have made a valid
election for Operator to be taxed under  subchapter S of the Code,  effective as
of January 1, 1992. Such election has been and will continue to be in effect for
Operator for all taxable years of Operator ending on or before the Closing Date.

                  (ii)  Operator  has  filed  all  income  tax  returns  or  tax
information  returns  required  to be filed by it and all returns of other Taxes
required  to be filed by it and has paid or  provided  for all Taxes shown to be
due by Operator on such returns except where the failure to file such returns or
pay such Taxes would not have a material  adverse  effect on the Operator or its
business.  No action or proceeding for the assessment or collection of any Taxes
is pending against Operator, no deficiency, assessment or other formal claim for
any Taxes has been  asserted or made  against  Operator  that has not been fully
paid or finally settled, and no issue,  including the status of Operator as an S
Corporation, has been formally raised by any taxing authority in connection with
an audit or examination  of any return of Taxes.  No federal or state income tax
or tax  information  returns of Operator  have been  examined,  and there are no
outstanding  agreements or waivers extending the applicable statutory periods of
limitation  for such Taxes for any  period.  All Taxes which  Operator  has been
required to collect or withhold have been duly withheld or collected and, to the
extent required,  have been paid to the proper taxing authority except where the
failure to file such returns or pay such Taxes would not have a material adverse
effect on the Operator or its business. No federal income Taxes will be assessed
on or after the Closing  Date against  Operator for any tax period  ending on or
prior to the Closing Date.

         (k) Patents, Trademarks.  Except for geophysical and software licences,
Operator  does not own or use in the  operation  of its  business  any  patents,
patent licenses,  software licenses, trade names,  trademarks,  service marks or
copyrights (collectively, "Intellectual Property").

         (l) Compliance with Laws.  Except as set forth on Schedule  5.1(l),  to
the  best of  Operator's  knowledge,  Operator  (a) is in  compliance  with  all
applicable laws,  regulations  (including  federal,  state and local procurement
regulations),  orders,  judgments  and  decrees  except  where the failure to so
comply would not have a material  adverse  effect on the  business,  operations,
financial  condition,  results of operations of Operator or the Subject  Assets,
and (b) possesses all necessary licenses,  franchises,  permits and governmental
authorizations  to  conduct  its  business  in the  manner  in which  and in the
jurisdictions and places where such business is now conducted,  except where the
failure to possess  the same  would not have a  material  adverse  effect on the
business, operations,  financial condition, results of operations of Operator or
the Subject Assets.




                                      -29-








         (m) Employee Benefit Plans. Operator does not maintain, nor has it ever
maintained  any employee  benefit plan within the meaning of Section 3(3) of the
Employee Retirement Income Security Act of 1974, as amended ("ERISA").  Operator
has not incurred any liability or taken any action, nor has any knowledge of any
action or event,  that could cause it to incur any  liability  (i) under Section
412 of the Code or Title IV of ERISA with respect to any "single  employer plan"
(within  the  meaning of  Section  4001(a)(15)  of ERISA),  (ii) on account of a
partial or complete  withdrawal  (within the meaning of Section 4205 and 4203 of
ERISA,  respectively)  with  respect to any  "multiemployer  plan"  (within  the
meaning of Section 3(37) of ERISA),  (ii) on account of unpaid  contributions to
any  such  multiemployer  plan,  or (iv) to  provide  health  benefits  or other
non-pension  benefits  to retired or former  employees,  except as  specifically
required by Section 4980B(f) of the Code.  Neither the execution and delivery of
this Agreement by Operator nor the consummation of the transactions contemplated
thereby will (i) entitle any current or former employee of Operator to severance
pay, unemployment  compensation or any similar payment, (ii) accelerate the time
of payment or vesting,  or increase the amount of, any  compensation  due to any
such employee or former employee,  or (iii) directly or indirectly result in any
payment  made  or to be made to or on  behalf  of any  person  to  constitute  a
"parachute payment" (within the meaning of Section 280G of the Code).

         (n)  Insurance.  Schedule  5.3(n)  contains a list of the  policies and
contracts  for fire,  casualty,  liability,  well  control  and  other  forms of
insurance maintained by Operator. All such policies are in full force and effect
and are adequate for the business in which  Operator  engages.  Operator has not
received any notice of  cancellation  or non-renewal  or of significant  premium
increases  with  respect to any such  policy.  Except as  disclosed  on Schedule
5.3(n),  no pending  claims made by or on behalf of Operator under such policies
have been denied or are being defended against third parties under a reservation
of rights by an insurer of  Operator.  All premiums due prior to the date hereof
for periods  prior to the date hereof with  respect to such  policies  have been
timely paid,  and all  premiums due before the Closing Date for periods  between
the date hereof and the Closing Date will be timely paid.

         (o)  Consents.  To the best of  Operator's  knowledge and except as set
forth on  Schedule  5.1(p) or as  required  pursuant to the HSR Act, no consent,
approval  or other  authorization  of any  governmental  authority  or under any
Contract,  Additional Contract or other material license,  franchise,  permit of
Operator  to which  Operator  is a party or by which  its  assets  are  bound is
required as a result of or in connection  with the execution or delivery of this
Agreement  by Operator  or the  consummation  by  Operator  of the  transactions
contemplated thereby, other than those that the failure to obtain would not have
a material adverse effect on Operator.




                                      -30-








          (p) Employees. As of Closing:

                  (i) All employees of Operator  shall have been  transferred to
BSHP or an entity designated by BSHP and Operator shall have no employees.

                  (ii)There shall be no outstanding loans or advances owed to
Operator by any director, officer or employee.

                  (iii)  Operator  shall  not be a party to,  nor bound by,  the
terms of any collective bargaining  agreement,  and Operator has not experienced
any material labor difficulties.  There shall be no labor disputes existing,  or
to the best  knowledge of  Operator,  threatened  involving,  by way of example,
strikes, work stoppages,  slowdowns,  picketing,  or any other interference with
work or production,  or any other concerted action by employees. No grievance or
other  legal  action  arising  out of any  collective  bargaining  agreement  or
relationship  exists,  or to the best knowledge of Operator,  is threatened.  No
charges or proceedings  before the National Labor  Relations  Board,  or similar
agency, exist, or to the best knowledge of Operator, are threatened.

                  (iv) Except for arrangements  with field personnel which Buyer
has agreed to retain by notice delivered in writing to Operator at least 30 days
prior to the  Closing  Date,  Operator  shall  not be a party to any  employment
contract with any individual or employee,  either  express or implied.  No legal
proceedings,  charges,  complaints,  or similar actions exist under any federal,
state or local laws affecting the employment  relationship;  and no proceedings,
charges,  or complaints are threatened under any such laws or regulations and no
facts or  circumstances  exist  which  would give rise to any such  proceedings,
charges,  complaints, or claims. Operator shall not be subject to any settlement
or consent decree with any present or former employee,  employee  representative
or any government or Agency relating to claims of discrimination or other claims
in respect to employment  practices  and  policies;  no government or Agency has
issued a  judgment,  order,  decree or  finding  with  respect  to the labor and
employment   practices  (including  practices  relating  to  discrimination)  of
Operator.

         (q) Brokers. No broker or finder has acted for or on behalf of Operator
in  connection  with this  Agreement or the  transactions  contemplated  by this
Agreement.  No broker or finder is entitled to any brokerage or finder's fee, or
to  any   commission,   based  in  any  way  on  agreements,   arrangements   or
understandings made by or on behalf of Operator for which Buyer has or will have
any liabilities or obligations (contingent or otherwise).

         (r)  Accuracy  of  Information  Furnished.  To the  best of  Operator's
knowledge,  all Contracts with respect to the Producing  Properties can be found
either of record in Polk  County,  Texas or in,  or  referenced  in,  Operator's
files. To the best of Operator's knowledge,  all Contracts located in Operator's
files are true, accurate and complete copies.



                                      -31-









                                   ARTICLE VI

              Representations and Warranties of Buyer and Guarantor

          Section 6.1  Representations and Warranties of Buyer. Buyer represents
and warrants to Sellers as follows:

         (a) Existence. Buyer is a corporation duly organized,  validly existing
and in good standing under the laws of the State of Nevada. Buyer has full legal
power,  right  and  authority  to carry  on its  business  as such is now  being
conducted  and  as  contemplated  to  be  conducted.  Buyer's  headquarters  and
principal offices are all located in the State of Texas.


          (b) Legal Power. Buyer has the legal power and right to enter into and
perform  this  Agreement  and the  transactions  contemplated  hereby.  The
consummation  of the  transactions  contemplated by this Agreement will not
violate, nor be in conflict with:

               (i)  any  provision  of  Buyer's  articles  of  incorporation  or
by-laws;

               (ii) any  material  agreement or  instrument  to which Buyer is a
party or by which Buyer is bound; or

               (iii) any judgment,  order,  ruling or decree applicable to Buyer
as a party in interest or any law, rule or regulation applicable to Buyer.

         (c)  Execution.  The  execution,   delivery  and  performance  of  this
Agreement and the  transactions  contemplated  hereby have been duly and validly
authorized  by all  requisite  corporate  action  on the  part  of  Buyer.  This
Agreement   constitutes  the  legal,  valid  and  binding  obligation  of  Buyer
enforceable in accordance  with its terms,  except that (i)  enforcement  may be
subject  to  bankruptcy,  insolvency,  reorganization,   moratorium,  fraudulent
conveyance  or similar laws  affecting  creditors'  rights  generally,  (ii) the
remedies of specific  performance  and injunctive  relief are subject to certain
equitable  defenses  and to  the  discretion  of  the  court  before  which  any
proceedings may be brought, and (iii) rights to indemnification hereunder may be
limited under applicable securities laws.

         (d) Brokers. No broker or finder has acted for or on behalf of Buyer or
any affiliate of Buyer in  connection  with this  Agreement or the  transactions
contemplated by this Agreement. No broker or finder is entitled to any brokerage
or  finder's  fee,  or to  any  commission,  based  in any  way  on  agreements,
arrangements or understandings made by or on behalf of Buyer or any affiliate of
Buyer  for  which  Sellers  have or will  have any  liabilities  or  obligations
(contingent or otherwise).




                                      -32-








          (e) Bankruptcy. There are no bankruptcy, reorganization or arrangement
proceedings pending, or to the knowledge of Buyer, threatened against Buyer.

          (f) Suits. There is no suit, action,  claim,  investigation or inquiry
by any person or entity or by any administrative agency or governmental body and
no legal,  administrative  or  arbitration  proceeding  pending  or, to  Buyer's
knowledge,  threatened against Buyer or any affiliate of Buyer which has or will
materially  affect Buyer's ability to consummate the  transactions  contemplated
herein.

          (g) Qualifications. Buyer is now, and at Closing shall continue to be,
qualified with all applicable governmental entities to own the Purchased Subject
Assets.

          (h)  Investment.  Prior to  entering  into this  Agreement,  Buyer was
advised by and has relied  solely on its own legal,  tax and other  professional
counsel  concerning this  Agreement,  the Purchased  Subject  Assets,  Purchased
Shares and the value  thereof.  Buyer is acquiring the Purchased  Subject Assets
and Purchased  Shares for its own account and not for  distribution or resale in
any  manner  that  would  violate  any state or federal  securities  law,  rule,
regulation or order.

               (i) Funds.  Buyer has  arranged to have  available by the Closing
Date sufficient funds to enable Buyer to pay in full the Adjusted Purchase Price
as  herein  provided  and  otherwise  to  perform  its  obligations  under  this
Agreement.

          Section 6.2  Representations  and  Warranties of Guarantor.  Guarantor
represents and warrants to Sellers as follows:

         (a)  Existence.  Guarantor is a  corporation  duly  organized,  validly
existing and in good standing  under the laws of the State of Nevada.  Guarantor
has full legal  power,  right and  authority to carry on its business as such is
now  being  conducted  and  as   contemplated   to  be  conducted.   Guarantor's
headquarters and principal offices are all located in the State of Texas.

          (b) Legal Power. Guarantor has the legal power and right to enter into
and  perform  this  Agreement  and the  transactions  contemplated  hereby.  The
consummation  of the  transactions  contemplated  by  this  Agreement  will  not
violate, nor be in conflict with:

               (i) any provision of  Guarantor's  articles of  incorporation  or
by-laws;

               (ii) any material agreement or instrument to which Guarantor is a
party or by which Guarantor is bound; or

               (iii)any  judgment,   order,   ruling  or  decree  applicable  to
Guarantor as a party in interest or any law,  rule or  regulation  applicable to
Guarantor.



                                      -33-









         (c)  Execution.  The  execution,   delivery  and  performance  of  this
Agreement and the  transactions  contemplated  hereby have been duly and validly
authorized by all  requisite  corporate  action on the part of  Guarantor.  This
Agreement  constitutes  the legal,  valid and binding  obligation  of  Guarantor
enforceable in accordance  with its terms,  except that (i)  enforcement  may be
subject  to  bankruptcy,  insolvency,  reorganization,   moratorium,  fraudulent
conveyance  or similar laws  affecting  creditors'  rights  generally,  (ii) the
remedies of specific  performance  and injunctive  relief are subject to certain
equitable  defenses  and to  the  discretion  of  the  court  before  which  any
proceedings may be brought, and (iii) rights to indemnification hereunder may be
limited under applicable securities laws.

         (d)  Brokers.  No  broker  or  finder  has  acted  for or on  behalf of
Guarantor or any affiliate of Guarantor in connection with this Agreement or the
transactions  contemplated by this Agreement. No broker or finder is entitled to
any  brokerage  or  finder's  fee,  or to any  commission,  based  in any way on
agreements,  arrangements or understandings made by or on behalf of Guarantor or
any affiliate of Guarantor  for which Sellers have or will have any  liabilities
or obligations (contingent or otherwise).

          (e) Bankruptcy. There are no bankruptcy, reorganization or arrangement
proceedings  pending,  or to the  knowledge  of  Guarantor,  threatened  against
Guarantor.

         (f) Suits. There is no suit, action, claim, investigation or inquiry by
any person or entity or by any administrative agency or governmental body and no
legal,  administrative  or  arbitration  proceeding  pending or, to  Guarantor's
knowledge,  threatened against Guarantor or any affiliate of Guarantor which has
or will materially  affect  Guarantor's  ability to consummate the  transactions
contemplated herein.

         (g) Investment.  Prior to entering into this  Agreement,  Guarantor was
advised by and has relied  solely on its own legal,  tax and other  professional
counsel  concerning this  Agreement,  the Purchased  Subject  Assets,  Purchased
Shares and the value  thereof.  Guarantor is  acquiring  the  Purchased  Subject
Assets and  Purchased  Shares for its own  account and not for  distribution  or
resale in any manner  that would  violate any state or federal  securities  law,
rule, regulation or order.

                                   ARTICLE VII

               Operation of the Subject Assets and Other Covenants

          Section 7.1 Operation of the Subject Assets Prior to Closing.

         (a) From and after the date of execution of this Agreement, and subject
to the provisions of applicable  operating and other agreements,  Operator shall
operate and  administer  the  Subject  Assets in a good and  workmanlike  manner
consistent with its past



                                      -34-








practices,  and  Operator  and  Working  Interest  Owners  shall  carry on their
businesses with respect to the Producing  Properties in  substantially  the same
manner as before  execution of this  Agreement.  Operator  and Working  Interest
Owners shall use their  reasonable  efforts to preserve in full force and effect
all oil and gas leases, operating agreements, easements, rights-of-way, permits,
licenses and  agreements  that relate to the Producing  Properties.  Without the
prior  written  consent of Buyer  (which  shall not be  unreasonably  withheld),
Operator and Working  Interest  Owner shall not modify,  terminate or settle any
dispute  arising  out  of  any  of the  agreements  relating  to  the  Producing
Properties and will not encumber,  sell, transfer,  assign,  convey,  farmout or
otherwise  dispose  of any of  the  Producing  Properties  other  than  personal
property  which is replaced by equivalent  property or consumed in the operation
of the Producing Properties.

         (b) Except for (i) emergency  action taken in the face of risk to life,
property or the  environment,  (ii) capital costs in connection  with  drilling,
completing or equipping operations with respect to the Champion  International C
No. 1, Champion International C No. 2, Carter E No. 11, Alabama Coushatta No. 5,
Alabama  Coushatta  No. 6 or Alabama  Coushatta No. 7 wells and (iii) the Camden
Tram  Leases,  the North  Double A Leases and the Center Grove Leases (for which
Operator shall notify Buyer of any proposed expenditures),  Operator and Working
Interest  Owner shall submit to Buyer for prior written  approval,  all requests
for operating or capital  expenditures and all proposed contracts and agreements
relating to the Producing Properties that involve individual commitments of more
than  $50,000.  If Buyer does not respond to any such request in writing  within
forty-eight (48) hours of the time the request is submitted, such matter will be
deemed approved.  Buyer  acknowledges  that Operator and Working Interest Owners
own undivided interests in the Subject Assets, and Buyer agrees that the acts or
omissions of the other working interests owners shall not constitute a violation
of the  provisions of this Article VII, nor shall any action  required by a vote
of working  interest owners  constitute such a violation so long as Operator and
Working  Interest  Owners have voted their  interests in a manner that  complies
with the  provisions of this Article VII. The  obligations  of Working  Interest
Owners and  Operator  under this  Article VII with respect to any portion of the
Subject  Assets not operated by either the Working  Interest  Owners or Operator
shall be  construed to require  that  Working  Interest  Owners and Operator use
reasonable  efforts  (without being  obligated to incur any expense or institute
any cause of action) to cause the  operator of the  Subject  Assets to take such
actions or render such  performance  within the  constraints  of the  applicable
operating agreements and other applicable agreements.

         Section 7.2 Operation of Certain  Areas After the Closing.  Operator is
the  operator  of the  Subject  Assets  under  the terms of  existing  operating
agreements  which have been  furnished to Buyer.  The parties  hereby agree that
BSHP or its  designee  may,  at any time  before or after the  Closing  elect to
become the operator under the operating agreements covering the lands covered by
the Camden Tram Leases,  Center Grove Leases,  or North Double A  Portion/Camden
Tram Leases, or any of them, and at the request of



                                      -35-








BSHP, Buyer shall (i) cause Operator to resign as operator of any such lands and
(ii) vote its interests, including the interests of Operator, to support BSHP or
its  designee  as  operator  of such  areas;  provided,  however,  that any such
resignation  shall not result in the Operator's right to continue to operate any
of the  Producing  Properties.  If Operator  does not resign at BSHP's  request,
Buyer shall cause Operator to fully  cooperate with BSHP to implement a mutually
acceptable plan to permit BSHP or its designee to become Operator of such Leases
and will cause  Operator to conduct  such  operations  in such areas as BSHP may
direct.  Each Working  Interest  Seller  agrees to vote its  interest  under the
operating  agreement for such Leases to support BSHP or its designee as operator
of any such Leases that BSHP elects to operate.

         Section 7.3 Operator's Geophysical Data. Operator owns interests in all
geophysical data now held by Operator and/or BSHP. Operator shall have access to
and the right to use all tapes and  records  thereof for all  purposes,  subject
only to BSHP's continuing right, as custodian,  to hold, access and protect such
data and the terms of any licenses or other agreements  applicable thereto. BSHP
shall calculate the Operator's actual level of ownership of such data and inform
Buyer thereof on or before Closing.

         Section 7.4 Course of Conduct by Operator. From the date hereof through
and until the Closing Date, Operator shall comply with the following covenants:

          (a) Articles of  Incorporation;  Bylaws.  Operator  shall not make any
change to its articles of incorporation or bylaws.

         (b) Stock Issuance;  Redemptions;  Reorganizations.  Operator shall not
(i)  issue,  grant,  or  dispose  of,  or make any  agreement,  arrangement,  or
commitment obligating Operator to issue, grant, or dispose of any capital shares
or other securities of Operator,  (ii) redeem or acquire, or make any agreement,
arrangement,  or commitment obligating Operator to redeem or acquire, any shares
of capital stock or other  securities of Operator,  or (iii) authorize or effect
or make any agreement,  arrangement or commitment obligating Operator to effect,
any  reorganization,  recapitalization,  or  split-up of such  capital  stock of
Operator;  provided,  that Operator may create one or more  subsidiaries to hold
the Excluded  Assets and other  properties  and  interests  described in Section
10.3, and distribute the stock of such subsidiaries to the Selling  Stockholders
prior to  Closing.  Operator  shall  advise  Buyer of any  plans to  create  and
distribute the stock of any subsidiaries pursuant hereto.

         (c) Employee Matters. Operator shall not make, amend, or enter into any
employment  contract or any bonus,  incentive,  stock  option,  profit  sharing,
pension,  retirement,  stock purchase,  hospitalization,  medical reimbursement,
insurance,  severance benefit,  or other similar plan or arrangement or make any
voluntary contribution to any such plan or arrangement.




                                      -36-








         (d) Insurance Coverage.  Operator shall maintain, or have maintained on
its behalf,  insurance  coverage  for the  benefit of  Operator  and the Subject
Assets on the same  basis as, or on a  substantially  equivalent  basis to,  the
current  insurance  coverage  described in Schedule 5.3(n).  Effective as of the
Closing Date Operator shall transfer the insurance policies  maintained pursuant
to  Schedule  5.3(n)  with the assets  distributed  pursuant  to  Section  10.3.
Operator shall be allowed to maintain copies of said policies.

          (e) Business  Organization.  Operator shall use reasonable  efforts to
preserve  intact  its  business  organization  and to keep  available  until the
Closing the services of its present officers and employees.

         (f) Incurrence of Debt. Except as otherwise  provided herein,  Operator
shall not voluntarily incur or assume, whether directly or by way of guaranty or
otherwise,  any  material  obligation  or  liability,   except  obligations  and
liabilities  incurred in the ordinary  course of business,  consistent with past
practice.

         (g) Liens.  Operator will not  mortgage,  pledge,  encumber,  create or
allow any Liens not existing on the date hereof upon any  properties  or assets,
tangible or intangible, except Liens created in the ordinary course of business,
consistent with past practice or, Liens constituting Existing Encumbrances.

          (h) Accounting Practices.  Operator will not make any material changes
in its accounting methods, principles or practices, except as required by GAAP.

         (i) Changes in Business  Practice.  Operator  will not take any action,
the purpose or effect of which is to shift income from  post-closing  periods to
the  pre-closing  period or to defer  expenses  from the  pre-closing  period to
post-closing  periods  which action is not in the  ordinary  course of business,
consistent with past practice.

         Section 7.5  Approvals and Consents.  Each Working  Interest  Owner and
Operator  shall  use  their  respective  reasonable  efforts  (i) to  cause  all
conditions to the  obligations  of Buyer under this Agreement over which each is
able to exercise  influence or control to be satisfied prior to the Closing Date
and  (ii) to  obtain  promptly  and to  comply  with  all  requisite  statutory,
regulatory or court  approvals,  third party  releases and  consents,  and other
requirements  necessary for the valid and legal consummation of the transactions
contemplated hereby.

         Section 7.6  Investigations.  Subject to Buyer's  obligations under the
Confidentiality  Agreement,  each  Working  Interest  Owner and  Operator  shall
provide Buyer and its representatives and agents (including, without limitation,
any  financing  sources)  such  access  to the books and  records  of  Operator,
including without  limitation the articles of incorporation,  bylaws,  corporate
minute books and stock records, and those relating to the



                                      -37-








Subject  Assets and  furnish to Buyer and such  representatives  and agents such
financial  and  operating  data  and  other  information  with  respect  to  the
businesses  and  property  of  Operator  and the  Subject  Assets  as  they  may
reasonably  request  from  time to time  and as may be in the  Working  Interest
Owner's or Operator's  possession,  and permit Buyer and its representatives and
agents to make such  inspections  of the Subject  Assets as they may  reasonably
request.

         Section 7.7 Final S Corporation  Federal  Income Tax Return.  Buyer and
the Selling  Stockholders  agree that Operator's  books will be closed as of the
end of the Closing Date and that the Selling Stockholders will assign Operator's
items of income,  loss,  deduction  and credit for the 1996 taxable year between
the Operator's  short taxable year ending on the Closing Date (the "S Year") and
Operator's short taxable year beginning on the day after Closing Date and ending
on December 31, 1996 (the "C Year") on the basis of Operator's  normal method of
accounting.  Buyer shall fully cooperate with the Selling  Stockholders and will
make available to them at reasonable  times and places  Operator's  business and
tax records and any appropriate  employees to enable the Selling Stockholders to
make the assignment of income,  loss,  deduction and credit between Operator's S
Year and C Year and to prepare  Operator's  federal  income tax return for the S
Year within ninety (90) days after the Closing Date.

         Section 7.8 Compiled  Financials.  On or before April 1, 1996, Operator
shall have delivered to Buyer compiled financial  statements of Operator for the
fiscal year ended December 31, 1995.

         Section 7.9  Distributions.  Except for the  transactions  described in
Sections  7.4(b) and 10.3,  Operator shall not make any dividend or distribution
to the Selling Stockholders prior to the Closing.

                                  ARTICLE VIII

                      Conditions to Obligations of Sellers

         The obligations of each Seller to consummate the transactions  provided
for herein are subject, at the option of Sellers, to the fulfillment on or prior
to the Closing Date of each of the following conditions:

         Section 8.1  Representations.  The  representations  and  warranties of
Buyer herein  contained  shall have been true and correct when made and shall be
true and correct in all material  respects on the Closing Date as though made on
and as of such date.




                                      -38-








         Section 8.2  Performance.  Buyer shall have  performed  in all material
respects all obligations,  covenants and agreements  contained in this Agreement
to be performed or complied with by it at or prior to the Closing.

         Section 8.3 Pending Matters.  No suit, action or other proceeding shall
be pending or threatened  that seeks to restrain,  enjoin or otherwise  prohibit
the consummation of the transactions contemplated by this Agreement.

         Section 8.4 Hart-Scott-Rodino.  Any applicable waiting period under the
HSR Act relating to the transactions  contemplated  hereby shall have expired or
been terminated.

          Section 8.5 Adjusted  Purchase  Price.  Buyer shall have  delivered to
Sellers the Adjusted Purchase Price as estimated pursuant to the terms hereof.

         Section 8.6  Execution and Delivery of Closing  Documents.  Buyer shall
have  executed,  acknowledged  and  delivered,  as  appropriate,  to Sellers all
closing documents described in Section 10.10.

         Section 8.7  Certificates.  Buyer shall have  delivered  to Sellers (i)
certificates of the appropriate governmental authorities, dated as of a date not
more than ten (10) days prior to the Closing  Date,  attesting to the  existence
and good  standing  of Buyer in the  States of Nevada  and  Texas;  (ii) a copy,
certified  by the  Secretary  of State of  Nevada as of a date not more than ten
(10) days prior to the Closing  Date, of the articles of  incorporation  and all
amendments  thereto of Buyer;  (iii) a copy certified by the Secretary of Buyer,
dated the Closing Date, of the bylaws of Buyer;  and (iv) a  certificate,  dated
the Closing  Date,  of the  Secretary of Buyer  relating to the  incumbency  and
corporate  proceedings in connection with the  consummation of the  transactions
contemplated hereby.

          Section 8.8 Opinion.  Locke Purnell Rain Harrell shall have  delivered
to Sellers an opinion in the form of Exhibit I.

                                   ARTICLE IX

                       Conditions to Obligations of Buyer

         The  obligations of Buyer to consummate the  transactions  provided for
herein are subject,  at the option of Buyer,  to the  fulfillment on or prior to
the Closing Date of each of the following conditions:

         Section 9.1 Representations. The representations and warranties of each
Seller and Operator  herein  contained and in any Schedule  hereto shall be true
and correct in all  material  respects on the Closing Date as though made on and
as of such date.



                                      -39-









         Section 9.2 Performance.  Operator and each Seller shall have performed
in all material respects all obligations,  covenants and agreements contained in
this  Agreement  to be  performed  or  complied  with by it at or  prior  to the
Closing.

         Section 9.3 Pending Matters.  No suit, action or other proceeding shall
be pending or threatened that seeks to restrain,  enjoin, or otherwise  prohibit
the consummation of the transactions contemplated by this Agreement.

         Section 9.4 Hart-Scott-Rodino.  Any applicable waiting period under the
HSR Act relating to the  transactions as contemplated  hereby shall have expired
or been terminated.

         Section 9.5  Execution and Delivery of Closing  Documents.  Each Seller
shall have executed,  acknowledged and delivered,  as appropriate,  to Buyer all
closing documents described in Section 10.9.

         Section 9.6  Certificates.  Operator  shall have delivered to Buyer (i)
certificates of the appropriate governmental authorities, dated as of a date not
more than ten (10) days prior to the Closing  Date,  attesting to the  existence
and good standing of Operator in the States of Texas and Louisiana; (ii) a copy,
certified by the Secretary of State of Texas as of a date not more than ten (10)
days  prior to the  Closing  Date,  of the  articles  of  incorporation  and all
amendments  thereto of  Operator;  (iii) a copy  certified  by the  Secretary of
Operator,  dated  the  Closing  Date,  of the  bylaws  of  Operator;  and (iv) a
certificate,  dated the Closing Date,  of the Secretary of Operator  relating to
the incumbency and corporate  proceedings in connection with the consummation of
the transactions contemplated hereby.

         Section  9.7  Consents  and  Approvals.  All  material  authorizations,
consents,  approvals,  waivers and releases,  if any,  necessary for Operator to
consummate  the  transactions  contemplated  hereby shall have been obtained and
copies thereof shall be delivered to Buyer.

         Section 9.8 All Sellers to Close.  Each Selling  Stockholder shall have
tendered its  certificate(s)  representing its Purchased Shares and each Working
Interest Owner shall have delivered an Assignment  assigning its interest in the
Purchased Subject Assets.

         Section 9.9 Nonforeign Affidavit.  Each Selling Stockholder and Working
Interest Owner shall have furnished  Buyer an affidavit  stating under penalties
of perjury the United  States  taxpayer  identification  number of such  Selling
Stockholder  or Working  Interest  Owner and that such  Selling  Stockholder  or
Working  Interest  Owner, as applicable,  is not a foreign  person,  pursuant to
Section 1445(b)(2) of the Code.

          Section 9.10 Operator. Operator shall be the Operator of the Producing
Properties and not of any other oil and gas properties.



                                      -40-









          Section 9.11 Opinion.  Vinson & Elkins L.L.P.  shall have delivered to
Buyer an opinion in the form of Exhibit J.

                                    ARTICLE X

                                     Closing

         Section 10.1 Time and Place of Closing.  If the conditions  referred to
in  Articles  VIII and IX of this  Agreement  have been  satisfied  or waived in
writing, the Closing shall take place at the offices of Operator at 1001 Fannin,
Suite 4750, Houston, Texas 77002, at 10:00 a.m. on the Closing Date.

          Section  10.2  Extension.  The Closing  Date may be extended by mutual
written agreement of the parties.

         Section  10.3  Actions  to be  Taken  Prior  to  Closing.  Prior to the
Closing,  Operator  shall  dividend  to its  shareholders  or,  spin  off to its
shareholders  in  a   reorganization   or  otherwise   dispose  of  for  nominal
consideration the following: (a) Operator's interest in the Excluded Assets; (b)
an undivided 70% of Operator's  interest as of the Effective  Time in the Camden
Tram Leases, the Center Grove Leases, and the North Double A Portion/Camden Tram
Leases;  (c) all Working  Capital of Operator,  in excess of the Closing Working
Capital;  and (d) all other assets of the  Operator,  except for its interest in
the Subject Assets.

          Section 10.4 Adjustments to Purchase Price at Closing.

          (a) At Closing,  the Purchase  Price of the Purchased  Subject  Assets
shall be increased by the following amounts:

               (i)  the  amount  as of the  Effective  Time  of all  prepaid  ad
valorem,  property or similar  taxes and  assessments  based upon or measured by
ownership of the Purchased Subject Assets,  insofar as such prepaid taxes relate
to periods of time after the Effective Time;

               (ii)  all  costs  and  expenses  (including  rentals,  royalties,
production and severance taxes,  capital  expenditures  (other than the Excluded
Capital  Costs),  lease  operating  expenses  authorized  under joint  operating
agreements  applicable to the Purchased Subject Assets) paid by Working Interest
Owners or Operator that are  attributable  to the Purchased  Subject  Assets and
attributable to the period of time from and after the Effective Time;




                                      -41-








               (iii) any amount required pursuant to Section 4.6 as the value of
any Title Benefit; and

               (iv) any other amount  provided  for in this  Agreement or agreed
upon by Buyer and Working Interest Owners.

          (b) At Closing,  the Purchase  Price of the Purchased  Subject  Assets
shall be decreased by the following amounts:

               (i)  an  amount  equal  to  all  unpaid  ad  valorem,   property,
production,  severance and similar taxes and assessments  based upon or measured
by the  ownership  of the  Purchased  Subject  Assets that are  attributable  to
periods of time prior to the Effective Time,  which amounts shall, to the extent
not actually  assessed,  be computed based on such taxes and assessments for the
preceding  tax year  (such  amount to be  prorated  for the  period  of  Working
Interest Owners' and Buyer's ownership before and after the Effective Time);

               (ii)  an  amount  equal  to all  revenues  collected  by  Working
Interest Owners with respect to the Purchased Subject Assets and attributable to
the period of time after the Effective Time;

               (iii) any amount  required  pursuant to Section 4.4 in connection
with Title Defects;

               (iv) any amount  required  pursuant to Section 4.9 in  connection
with Disqualifying Environmental Conditions;

               (v) any amount  required  pursuant to Section 13.3 in  connection
with casualty losses;

               (vi) any other amount  provided  for in this  Agreement or agreed
upon by Buyer and Working Interest Owners.

          (c) If an aggregate  net gas  imbalance  relative to Working  Interest
Owners'  interests in the Producing  Properties exists as of the Effective Time,
the  Purchase  Price shall be  increased,  if such  interests  in the  Producing
Properties are underproduced,  or decreased,  if such interests in the Producing
Properties  are  overproduced,  by the  product of (i) the amount  (measured  in
British  thermal units ("BTU") of such  aggregate  net gas  imbalance,  and (ii)
$1.75 per million BTU.

          (d) The Purchase  Price of the Purchased  Shares shall be increased by
the value of any  Title  Benefit  determined  in  accordance  with  Section  4.6
attributable to the Operator



                                      -42-








Subject Assets. The Purchase Price of the Purchased Shares shall be decreased by
the  sum of  the  following:  (i)  the  value  of any  Title  Defect  adjustment
determined in accordance with Section 4.4  attributable to the Operator  Subject
Assets, (ii) any amount determined  pursuant to Section 4.9(a)(iv)  attributable
to the Operator Subject Assets,  (iii) any amount determined pursuant to Section
13.3  attributable to the Operator Subject Assets,  and (iv) any amount by which
the Working  Capital of Operator as of the Closing Date is less than the Closing
Working Capital.

          (e) The adjustments described in Section 10.4(a), (b), (c) and (d) are
hereinafter referred to as the "Purchase Price Adjustments".

          Section 10.5  Statement.  Not later than three  business days prior to
the Closing  Date,  Seller shall prepare and deliver to Buyer a statement of the
estimated Purchase Price Adjustments (the "Statement").  At Closing, Buyer shall
pay the Purchase  Price, as adjusted by the estimated  amounts  reflected on the
Statement.

         Section 10.6        Post-Closing Adjustments to Purchase Price.

         (a) On or before 90 days after the Closing  Date,  BSHP shall prepare a
revised  Statement  setting forth the actual  Purchase  Price  Adjustments.  The
parties  shall  provide  each other such data and  information  as any party may
reasonably  request supporting the amounts reflected on the revised Statement in
order to permit  such party to perform or cause to be  performed  an audit.  The
revised  Statement  shall  become final and binding upon the parties on the 60th
day  following  receipt  thereof by Buyer (the "Final  Settlement  Date") unless
Buyer gives written notice of its disagreement (a "Notice of  Disagreement")  to
Seller prior to such date.  Any Notice of  Disagreement  shall specify in detail
the dollar amount, nature and basis of any disagreement so asserted. If a Notice
of Disagreement is received by Seller in a timely manner, then the Statement (as
revised in  accordance  with clause (i) or (ii) below)  shall  become  final and
binding on the Parties and the Final Settlement Date shall be the earlier of (i)
the date Seller and Buyer agree in writing with respect to all matters specified
in the Notice of  Disagreement or (ii) the date on which the Final Statement (as
hereinafter defined) is issued by the Arbitrator (as hereinafter defined).

         (b) During the 30 days  following  the date of receipt by Seller of the
Notice of Disagreement, Seller and Buyer shall attempt to resolve in writing any
differences  that they may have with  respect to all  matters  specified  in the
Notice of Disagreement.  If, at the end of such 30 day period,  Buyer and Seller
have not reached  agreement on such matters,  the matters that remain in dispute
shall  be  submitted  to  an  arbitrator  (the   "Arbitrator")  for  review  and
resolution.  The Arbitrator  shall be Arthur  Andersen & Co., or if such firm is
unable or unwilling to act, such other nationally recognized  independent public
accounting  firm as shall be agreed  upon by Buyer and  Seller in  writing.  The
Arbitrator  shall render a decision  resolving the matters in dispute  within 60
days following their submission to the



                                      -43-








Arbitrator.  The cost of any arbitration (including the fees and expenses of the
Arbitrator)  pursuant to this Section  10.6 shall be borne  equally by Buyer and
Seller. The fees and disbursements of Seller's  independent auditors incurred in
connection  with the  procedures  performed  with respect to the  Statement,  as
requested by Seller shall be borne by Seller,  and the fees and disbursements of
Buyer's  independent  auditors  incurred in connection with their preparation of
the Notice of  Disagreement  shall be borne by Buyer.  As used in this Agreement
the term "Final Statement" shall mean the revised Statement described in Section
10.6(a),  as prepared by Seller and as may be  subsequently  adjusted to reflect
any subsequent written agreement between the parties with respect thereto, or if
submitted to the Arbitrator, the revised Statement issued by the Arbitrator.

         (c) If the amount of the  Adjusted  Purchase  Price as set forth on the
Final Statement exceeds the amount of the estimated Adjusted Purchase Price paid
at  Closing,  then Buyer  shall pay to Seller  the amount by which the  Adjusted
Purchase  Price as set forth on the Final  Statement  exceeds  the amount of the
estimated  Adjusted  Purchase  Price paid at Closing  within five  business days
after the Final Settlement Date. If the amount of the Adjusted Purchase Price as
set  forth on the Final  Statement  is less  than the  amount  of the  estimated
Adjusted  Purchase  Price paid at Closing,  then  Seller  shall pay to Buyer the
amount by which the Adjusted  Purchase Price as set forth on the Final Statement
is less than the amount of the estimated Adjusted Purchase Price paid at Closing
within five business days after the Final Settlement Date.

         Section 10.7 Transfer Taxes.  All sales, use or other taxes (other than
taxes on gross income, net income or gross receipts) and duties, levies or other
governmental  charges  incurred  by or  imposed  with  respect  to the  property
transfers  undertaken pursuant to this Agreement shall be the responsibility of,
and shall be paid by, Buyer.

         Section  10.8 Ad Valorem and Similar  Taxes.  Ad valorem,  property and
similar taxes and assessments based upon or measured by the value of the Subject
Assets shall be divided or prorated between Seller and Buyer as of the Effective
Time.  Seller shall assume  responsibility  for such taxes  attributable  to the
period of time prior to the Effective Time and Buyer shall assume responsibility
for the periods of time from the Effective Time and thereafter.

          Section  10.9 Actions of Sellers at Closing.  At the  Closing,  Seller
shall:

         (a) Execute,  acknowledge  and deliver to Buyer the  Assignment  and/or
such other  conveyances,  assignments,  transfers,  bills of sale, stock powers,
stock  certificates and other instruments (in form and substance mutually agreed
upon by Buyer  and  Seller)  as may be  necessary  or  desirable  for  Seller to
transfer its interest in the Purchased  Subject  Assets and Purchased  Shares to
Buyer; and




                                      -44-








         (b) Execute,  acknowledge and deliver any other agreements provided for
herein or necessary or desirable to  effectuate  the  transactions  contemplated
hereby.

          Section  10.10  Actions of Buyer at  Closing.  At the  Closing,  Buyer
shall:

          (a)  Deliver to Seller  the  Adjusted  Purchase  Price,  as  estimated
pursuant to the provisions  hereof by wire transfer as set forth in Section 2.2;
and

          (b) Execute, acknowledge and deliver any other agreements provided for
herein or necessary or desirable to  effectuate  the  transactions  contemplated
hereby.

          Section 10.11 Further Cooperation.

          (a) At Closing, the Records shall be delivered to Buyer at the offices
of Operator.  Seller shall have the right to copy, at Seller's expense,  each of
the Records,  but Buyer shall retain the originals thereof.  For a period of six
(6) years  after  Closing,  Buyer will  retain or cause  Operator  to retain the
Records  delivered to it pursuant hereto and will make such Records available to
BSHP upon  reasonable  notice at Buyer's  headquarters  at reasonable  times and
during office hours.  Notwithstanding  the foregoing,  (i) BSHP shall retain the
original  Records  relating to the Camden  Tram  Interest  and the Center  Grove
Interest and (ii) Seller  shall  retain all Records of Operator  that pertain to
the Excluded  Assets for a period of 6 years after  Closing and Buyer shall have
access thereto and the right to make copies thereof.

          (b) After the Closing Date, each party at the request of the other and
without additional  consideration,  shall execute and deliver, or shall cause to
be  executed  and  delivered  from  time to time  such  further  instruments  of
conveyance  and transfer and shall take such other action as the other party may
reasonably  request to convey  and  deliver  the  Purchased  Subject  Assets and
Purchased Shares to Buyer. After the Closing, the Parties will cooperate to have
all  proceeds  received  attributable  to the  Subject  Assets to be paid to the
proper party  hereunder and to have all  expenditures to be made with respect to
the Subject Assets to be made by the proper party hereunder.

          Section 10.12  Confidentiality  Agreement.  If the Closing occurs, the
confidentiality  agreement  dated  November  16,  1995  between  Black Stone Oil
Company and Black Stone Holdings Partnership and Guarantor (the "Confidentiality
Agreement") shall terminate and be of no further force or effect.

          Section 10.13 Letter of Intent.  This Agreement shall supersede in its
entirety,  and there is hereby  terminated,  that certain letter agreement dated
January 9, 1996 between Buyer and BSHP.




                                      -45-








                                   ARTICLE XI

                                   Termination

          Section 11.1 Right of Termination.

          This  Agreement  may be  terminated  at any  time at or  prior  to the
Closing:

          (a) by mutual written consent of the Parties;

          (b) by  Seller  on the  Closing  Date if the  conditions  set forth in
Article  VIII  have not been  satisfied  in all  respects  by Buyer or waived by
Seller in writing by the Closing Date;

          (c) by  Buyer  on the  Closing  Date if the  conditions  set  forth in
Article IX have not been  satisfied in all respects by Seller or waived by Buyer
in writing by the Closing Date;

          (d) by any party if the Closing  shall not have  occurred on or before
May 8, 1996;  provided,  however,  that no party  hereto can so  terminate  this
Agreement if such party is at such time in material  breach of any  provision of
this Agreement;

          (e) by any party if any  Governmental  Authority  shall have issued an
order,  judgment  or decree or taken any  other  action  challenging,  delaying,
restraining,  enjoining,  prohibiting or invalidating the consummation of any of
the transactions contemplated herein;

          (f) by Seller if (i) the Total  Defect  Adjustment  exceeds 14% of the
Purchase Price; or (ii) the aggregate  amount of Title Defects asserted by Buyer
pursuant to Section 4.3 exceeds 5.6% of the Purchase Price,  (iii) the Aggregate
Environmental  Defect Value and the aggregate Allocated Value of Excluded Assets
pursuant to Section  4.9(a)(i)  exceeds 5.6% of the Purchase  Price; or (iv) the
total  adjustments to the Purchase  Price under Section 13.3  (Casualty  Losses)
exceeds 10% of the Purchase Price;

          (g) by Buyer if (i) the Total  Defect  Adjustment  exceeds  14% of the
Purchase  Price,  (ii) the aggregate  amount of all  adjustments to the Purchase
Price for Title Defects exceeds 5.6% of the Purchase Price;  (iii) the Aggregate
Environmental Defect Value of Disqualifying  Environmental  Conditions not cured
prior to Closing and the aggregate  Allocated  Value of Excluded Assets pursuant
to  Section  4.9(a)(ii)  exceeds  5.6% of the  Purchase  Price;  (iv) the  total
adjustments to the Purchase Price under Section 13.3 (Casualty  Losses)  exceeds
10% of the Purchase Price;

          (h) by Seller if Buyer submits a Title Defect Notice directly  related
to the Escobeda Title Matter; or




                                      -46-








               (i) as otherwise provided in the Agreement.

          Section 11.2 Effect of Termination. In the event that Closing does not
occur as a result of any party  exercising  its right to  terminate  pursuant to
Section 11.1, then this Agreement shall be null and void and no party shall have
any rights or obligations under this Agreement, except that nothing herein shall
relieve any party from any liability for any breach hereof.

         Section  11.3  Attorney's  Fees,  Etc.  If any party to this  Agreement
resorts to legal proceedings to enforce this Agreement,  the prevailing party in
such  proceedings  shall be entitled to recover all costs incurred by such party
including  reasonable  attorney's fees, in addition to any other relief to which
such party may be entitled;  provided,  however, and notwithstanding anything to
the  contrary  in this  Agreement,  in no event  shall any party be  entitled to
receive any punitive, indirect or consequential damages.

                                   ARTICLE XII

                         Assumption and Indemnification

         Section  12.1  Assumption.  By the  consummation  of  the  transactions
contemplated hereby and subject to each Working Interest Owner's indemnification
obligation  set forth in  Section  12.2,  Buyer  shall  assume  all  duties  and
obligations of every kind whatsoever of each Working  Interest Owner relative to
its ownership or operation of the Producing Properties to be performed after the
Effective Time,  including,  without  limitation,  (a) all gas imbalances to the
extent that  appropriate  adjustments have been made pursuant to Section 10.4(c)
above, (b) all obligations relative to all suspense accounts of Working Interest
Owner  relative to the  Producing  Properties,  to the extent that such suspense
accounts are held by Operator,  (c) all obligations  relative to all ad valorem,
property or similar taxes or assessments  based upon or measured by ownership of
the  Producing  Properties  due and payable after the  Effective  Time;  (d) all
obligations to plug and abandon all wells and  facilities  located on or used in
connection with the Producing  Properties in accordance with the requirements of
all applicable  Governmental  Authorities and the terms of all applicable leases
and agreements;  and (e) all obligations under all Environmental Laws applicable
to the Producing Properties;  provided, however, that Buyer shall not assume any
duties or  obligations  and shall have no liability  (contingent  or  otherwise)
whatsoever with respect to the Excluded Assets.

          Section 12.2 Indemnification.

         (a) Buyer  shall  indemnify,  defend  and hold  harmless  each  Working
Interest  Owner  and  its  respective  officers,  directors,  partners,  spouse,
employees,  agents,  representatives and successors (collectively,  the "Working
Interest Owner Indemnitees") from and against any



                                      -47-








and all  claims,  liabilities,  losses,  causes of actions,  costs and  expenses
(including,  without  limitation,  involving  theories of  negligence  or strict
liability and including court costs and reasonable  attorneys'  fees) ("Losses")
asserted  against,  imposed  upon or  incurred  by any  Working  Interest  Owner
Indemnitee  which result from, or arise out of (i) the material breach of any of
the representations,  warranties,  covenants or agreements of Buyer contained in
this Agreement,  the Assignment or any other  instrument  executed in connection
herewith,  (ii) events,  conditions or matters (other than Environmental Matters
(as defined below)) occurring from and after the Closing Date in connection with
the ownership or operation of Working Interest Owner's interest in the Producing
Properties;  (iii)  events,  conditions  or matters  (other  than  Environmental
Matters) occurring prior to the Closing Date in connection with the ownership or
operation of Working Interest Owner's interest in the Producing  Properties,  to
the extent a claim is asserted on or after the third  anniversary of the Closing
Date; (iv) any event,  condition or matter relating to Environmental Laws or the
release of materials into the  environment  or protection of the  environment or
health  ("Environmental  Matters") occurring in connection with Working Interest
Owner's  interest  in the  Producing  Properties  and arising for the first time
after the Closing Date, (v) any  Environmental  Matters  occurring  prior to the
Closing Date, with respect to Working Interest Owner's interest in the Producing
Properties,  to the extent the claim is asserted on or after January 1, 1997, or
(vi) any matter which Buyer is responsible for correcting  under Section 4.9(c),
regardless  in each case  whether  known or unknown,  and WITHOUT  REGARD TO THE
SOLE,  PARTIAL OR  CONCURRENT  NEGLIGENCE  OR STRICT  LIABILITY  OF ANY  WORKING
INTEREST  OWNER  INDEMNITEE,  but in no event shall Buyer  indemnify any Working
Interest Owner  Indemnitee for Losses resulting from such Working Interest Owner
Indemnitee's own gross negligence or willful misconduct.  Buyer shall indemnify,
defend and hold harmless each Selling  Stockholder and its respective  officers,
directors,   spouse,   employees,   agents,   representatives   and   successors
(collectively,  the "Selling Stockholder  Indemnitees") from and against any and
all Losses asserted against, imposed upon or incurred by any Selling Stockholder
Indemnitee  which result from, or arising out of,  material breach of any of the
representations,  warranties, covenants or agreements of Buyer contained in this
Agreement  or any other  instrument  executed by Buyer in  connection  herewith;
regardless  in each case  whether  known or unknown,  and WITHOUT  REGARD TO THE
SOLE,  PARTIAL OR  CONCURRENT  NEGLIGENCE  OR STRICT  LIABILITY  OF ANY  SELLING
STOCKHOLDER  INDEMNITEE;  but in no event  shall  Buyer  indemnify  any  Selling
Stockholder  Indemnitee  for  Losses  resulting  from such  Selling  Stockholder
Indemnitee's own gross negligence or willful misconduct.

         (b) Subject to Section  12.2(e) and (f),  each Working  Interest  Owner
severally and not jointly shall  indemnify,  defend and hold harmless  Buyer and
its officers,  directors,  employees,  agents,  representatives  and  successors
(collectively,  the "Buyer  Indemnitees")  from and  against  any and all Losses
asserted against,  imposed upon or incurred by any Buyer Indemnitee which result
from or arise  out of (i) the  material  breach  of any of the  representations,
warranties, covenants or agreements of such Working Interest Owner



                                      -48-








contained in this Agreement,  the Assignment or any other instrument executed by
such Working Interest Owner in connection herewith;  (ii) events,  conditions or
matters (other than Environmental Matters and title matters, title matters being
solely covered by the indemnity in Section 12.2(b)(i)) occurring or in existence
prior to the Closing  Date in  connection  with the  ownership  or  operation of
Working Interest Owner's interest in the Producing  Properties,  to the extent a
claim is asserted  prior to the third  anniversary of the Closing Date; or (iii)
any  Environmental  Matters  occurring or in existence prior to the Closing Date
(except those matters which Buyer is responsible  for  correcting  under Section
4.9(c))  with  respect to Working  Interest  Owner's  interest in the  Producing
Properties,  to the extent a claim is asserted on or prior to December 31, 1996,
regardless  in each case  whether  known or unknown,  and WITHOUT  REGARD TO THE
SOLE,  PARTIAL  OR  CONCURRENT  NEGLIGENCE  OR  STRICT  LIABILITY  OF ANY  BUYER
INDEMNITEE,  but in no event shall Working  Interest Owners  indemnify any Buyer
Indemnitees  for  Losses  resulting  from  such  Buyer  Indemnitee's  own  gross
negligence or willful misconduct.

         (c) Subject to Sections  12.2 (e) and (f),  Thomas L.  Carter,  Jr. and
Alexander D. Stuart (the  "Stockholder  Indemnitors")  shall  severally  and not
jointly,  in proportion to their respective  interests in the Purchased  Shares,
indemnify,  defend and hold harmless Buyer  Indemnitees from and against any and
all Losses asserted  against,  imposed upon or incurred by any Buyer  Indemnitee
which  result  from  or  arise  out of (i)  the  material  breach  of any of the
representations  and  warranties of Operator  contained in this Agreement or any
other instrument executed by Operator in connection herewith;  (ii) the material
breach by Operator of any of the covenants and agreements of Operator  contained
in this  Agreement or any other  instrument  executed by Operator in  connection
herewith  which  covenant or agreement was to be performed by Operator  prior to
the  Closing,  (iii) any  obligations,  liabilities  or duties of  Operator  not
relating to the Subject Assets;  (iv) any Environmental  Matters occurring or in
existence  prior to the Closing Date with respect to Operator's  interest in the
Producing Properties to the extent the claim is asserted on or prior to December
31, 1996 (except those matters which Buyer is responsible  for correcting  under
Section  4.9(c));  (v)  Operator's  ownership  or  operation  of  the  Producing
Properties prior to the Closing Date (other than Environmental Matters and title
matters,  title  matters  being  solely  covered  by the  indemnity  in  Section
12.2(c)(i)),  to the extent the Claim is asserted prior to the third anniversary
of the Closing Date; (vi) Black Stone Oil Company v. C.C. Lilley, Inc.; or (vii)
Tax Losses; regardless in each case whether known or unknown, and WITHOUT REGARD
TO THE SOLE,  PARTIAL OR CONCURRENT  NEGLIGENCE OR STRICT LIABILITY OF ANY BUYER
INDEMNITEE,  but in no event shall Stockholder  Indemnitors  indemnify any Buyer
Indemnitee  for  Losses  resulting  from  such  Buyer   Indemnitee's  own  gross
negligence or willful misconduct.

         (d)  Subject to  Sections  12.2(e) and (f),  each  Selling  Stockholder
severally  and not  jointly  shall  indemnify,  defend and hold  harmless  Buyer
Indemnitees from and against any and all Losses asserted  against,  imposed upon
or incurred by any Buyer Indemnitee which



                                      -49-








result from or arise out of the material  breach of any of the  representations,
warranties,  covenants or  agreements of such Selling  Stockholder  contained in
this Agreement,  or any other instrument executed by such Selling Stockholder in
connection  herewith;  regardless  in each case  whether  known or unknown,  and
WITHOUT REGARD TO THE SOLE, PARTIAL OR CONCURRENT NEGLIGENCE OR STRICT LIABILITY
OF ANY BUYER INDEMNITEE,  but in no event shall Selling  Stockholders  indemnify
any Buyer  Indemnitees  for losses  resulting from such Buyer  Indemnitee's  own
gross negligence or willful misconduct.

         (e) Notwithstanding  anything to the contrary in this Agreement,  in no
event shall Buyer or any Seller be liable hereunder for any exemplary, punitive,
special, indirect, consequential, remote or speculative damages.

         (f)  Notwithstanding  anything to the contrary in this  Agreement,  the
liability of the Sellers and the  Stockholder  Indemnitors  under this Agreement
and any documents  delivered in connection herewith or contemplated hereby shall
be several and not joint or collective, and further limited as follows:

               (i) In no event  shall any  amounts be  recovered  from a Working
Interest Owner

                             (A)  under  Sections  12.2(b)(i)  and  (ii) for any
                             matter   for  which  a  written   notice  of  claim
                             specifying in reasonable detail the specific nature
                             of  and  specific  basis  of  the  Losses  and  the
                             estimated amount of such Losses ("Claim Notice") is
                             not  delivered to the  indemnifying  party prior to
                             the  close  of  business  on the  day  three  years
                             following  the Closing  Date,  and the  indemnities
                             granted by the Working  Interest Owners in Sections
                             12.2(b)(i) and (ii) shall terminate on such date;

                             (B) under Section  12.2(b)(iii)  for any matter for
                             which  a  Claim  Notice  is  not  delivered  to the
                             indemnifying  party  prior to the close of business
                             on December 31, 1996, and the  indemnities  granted
                             by  the   Working   Interest   Owners  in  Sections
                             12.2(b)(iii) shall terminate on such date;

                             (C) for any Losses (other than matters described in
                             Section  12.2(b)(iii))  until the Buyer Indemnitees
                             have suffered  Losses  attributable to such Working
                             Interest Owner in the aggregate amount in excess of
                             a deductible of 0.6% of the Adjusted Purchase Price
                             attributable to such Working Interest Owner,  after
                             which  point such  Working  Interest  Owner will be
                             obligated only to indemnify the Buyer



                                      -50-








                              Indemnitees  from and against  further such Losses
                              in excess of such deductible;

                             (D)   for   any   Losses   described   in   Section
                             12.2(b)(iii),  until  the  Buyer  Indemnitees  have
                             suffered   Losses   attributable  to  such  Working
                             Interest Owner in the aggregate amount in excess of
                             a  deductible  equal  to the sum of (x) 0.6% of the
                             Adjusted Purchase Price, plus (y) the Environmental
                             Deductible  Balance,  in each case  attributable to
                             such Working Interest Owner, after which point such
                             Working  Interest  Owner will be obligated  only to
                             indemnify  the Buyer  Indemnitees  from and against
                             further Losses in excess of such deductible; or

                             (E) for any Losses suffered by Buyer Indemnitees in
                             an  aggregate  amount  in  excess  of  50%  of  the
                             Adjusted Purchase Price attributable to such
                             Working Interest Owner.

               (ii)  In  no  event  shall  any  amounts  be  recovered   from  a
Stockholder Indemnitor

                             (A) under Sections 12.2(c)(i),  (ii) or (v) for any
                             matter for which a Claim Notice is not delivered to
                             the  indemnifying  party  prior  to  the  close  of
                             business  on the date  three  years  following  the
                             Closing Date,  and the  indemnities  granted by the
                             Stockholder  Indemnitors  in  Sections  12.2(c)(i),
                             (ii) and (v) shall terminate on such date;

                             (B) under Section  12.2(c)(iii),  (vi) or (vii) for
                             any  matter  for  which  a  Claim   Notice  is  not
                             delivered  to the  indemnifying  party prior to the
                             expiration   of   the    applicable    statute   of
                             limitations;

                             (C) under  Section  12.2(c)(iv)  for any matter for
                             which  a  Claim  Notice  is  not  delivered  to the
                             indemnifying  party  prior to the close of business
                             on the  December  31,  1996,  and  the  indemnities
                             granted by the  Stockholder  Indemnitors in Section
                             12.2(c)(iv) shall terminate on such date;

                             (D) for any Losses (other than matters described in
                             Section  12.2(c)(iv),  (vi) and  (vii))  until  the
                             Buyer Indemnitees have suffered Losses attributable
                             to such  Stockholder  Indemnitor  in the  aggregate
                             amount  in  excess  of a  deductible  of .6% of the
                             Adjusted   Purchase  Price   attributable   to  the
                             Purchased  Shares of such  Stockholder  Indemnitor,
                             after which point the  Stockholder  Indemnitor will
                             be



                                      -51-








                              obligated only to indemnify the Buyer  Indemnitees
                              from and against  further Losses in excess of such
                              deductible;

                             (E)  for  any  Losses  for  matters  under  Section
                             12.2(c)(iv)   until  the  Buyer   Indemnitees  have
                             suffered Losses  attributable  to such  Stockholder
                             Indemnitor in the  aggregate  amount in excess of a
                             deductible  equal  to the  sum  of  (x)  .6% of the
                             Adjusted  Purchase Price, and (y) the Environmental
                             Deductible Balance, in each case as attributable to
                             the   Purchased    Shares   of   such   Stockholder
                             Indemnitor,   after  which  point  the  Stockholder
                             Indemnitor  will be obligated only to indemnify the
                             Buyer  Indemnitees  from and against further Losses
                             in excess of such deductible; or

                             (F) for any Losses resulting from matters described
                             in Sections 12.2(c)(i), (ii), (iii), (iv) or (v) or
                             12.2(d)  after  Buyer   Indemnitees  have  suffered
                             Losses in the aggregate  amount in excess of 50% of
                             the Adjusted  Purchase  Price  attributable  to the
                             Purchased Shares of such Stockholder Indemnitor.

               (iii) In no event shall any amounts be  recovered  from a Selling
Stockholder (other than pursuant to Section 12.2(f)(ii))

                             (A) under this Agreement for any matter for which a
                             Claim Notice is not  delivered to the  indemnifying
                             party  prior to the close of  business  on the date
                             three years  following  the Closing  Date,  and the
                             indemnities granted by the Selling  Stockholders in
                             this Agreement shall terminate on such date;

                             (B) for any Losses until the Buyer Indemnitees have
                             suffered Losses resulting from matters described in
                             Section 12.2(d) for any Selling  Stockholder in the
                             aggregate  amount in excess of a deductible  of .6%
                             of the Adjusted Purchase Price  attributable to the
                             Purchased Shares of such Selling Stockholder, after
                             which  point  such  Selling   Stockholder  will  be
                             obligated  only to indemnify the Buyer  Indemnitees
                             from and against  further  Losses in excess of such
                             deductible; or

                             (C) for any Losses  after  Buyer  Indemnitees  have
                             suffered Losses resulting from matters described in
                             Section  12.2(d) in the aggregate  amount in excess
                             of 50% of the Adjusted Purchase Price  attributable
                             to   the   Purchased   Shares   of   such   Selling
                             Shareholder.




                                      -52-








provided,   however,  that  such  indemnities  shall  survive  (subject  to  any
applicable  deductible or cap) with respect only to the specific  matter that is
the subject of any Claim Notice  delivered in good faith in compliance  with the
requirements  of this Section 12.2(f) until the earlier to occur of (x) the date
on which a final nonappealable  resolution of the matter described in such Claim
Notice has been  reached or (y) the date on which the matter  described  in such
Claim  Notice  has  otherwise  reached  final  resolution.  Notwithstanding  the
foregoing, the Stockholder Indemnitors shall be jointly and severally liable for
the  indemnity  granted in Section  12.2(c)(vii)  with respect to Tax Losses and
Section 12.2(c)(vi) with regard to Black Stone Oil Company v. C.C. Lilley, Inc.

         (g) All claims for  indemnification  under this  Section  12.2 shall be
asserted and  resolved  pursuant to this Section  12.2(g).  Any person  claiming
indemnification  hereunder is hereinafter referred to as the "Indemnified Party"
and any person  against whom such claims are asserted  hereunder is  hereinafter
referred  to as the  "Indemnifying  Party."  In the event  that any  Losses  are
asserted against or sought to be collected from an Indemnified  Party by a third
party,  said Indemnified Party shall with reasonable  promptness  provide to the
Indemnifying  Party a Claim  Notice.  Notwithstanding  the  preceding  sentence,
failure of the Indemnified  Party to give notice hereunder shall not release the
Indemnifying  Party from its  obligations  under this Article XII, except to the
extent the  Indemnifying  Party is actually  prejudiced  by such failure to give
notice.  The Indemnifying Party shall have 30 days from the personal delivery or
receipt of the Claim  Notice (the  "Notice  Period")  to notify the  Indemnified
Party (i) whether or not it disputes the liability of the Indemnifying  Party to
the Indemnified  Party hereunder with respect to such Losses and/or (ii) whether
or not it desires,  at the sole cost and expense of the  Indemnifying  Party, to
defend the Indemnified Party against such Losses;  provided,  however,  that any
Indemnified  Party is hereby authorized prior to and during the Notice Period to
file any  motion,  answer or other  pleading  that it shall  deem  necessary  or
appropriate to protect its interests or those of the Indemnifying  Party (and of
which it shall have given notice and opportunity to comment to the  Indemnifying
Party) and not  prejudicial  to the  Indemnifying  Party.  In the event that the
Indemnifying  Party notifies the Indemnified Party within the Notice Period that
it desires to defend the Indemnified Party against such Losses, the Indemnifying
Party  shall  have the right to defend  all  appropriate  proceedings,  and with
counsel of its own  choosing,  which  proceedings  shall be promptly  settled or
prosecuted by them to a final  conclusion.  If the Indemnified  Party desires to
participate in, but not control,  any such defense or settlement it may do so at
its  sole  cost  and  expense.  If  requested  by the  Indemnifying  Party,  the
Indemnified  Party  agrees  to  cooperate  with the  Indemnifying  Party and its
counsel in contesting any Losses that the  Indemnifying  Party elects to contest
or,  if  appropriate  and  related  to the  claim in  question,  in  making  any
counterclaim  against  the  person  asserting  the third  party  Losses,  or any
cross-complaint  against  any  person.  No claim  may be  settled  or  otherwise
compromised without the prior written consent of the Indemnifying Party.




                                      -53-








         (h)  Notwithstanding  anything to the contrary  contained  herein,  the
amount of any Losses for which  indemnification  is provided  under this Section
12.2 shall be net of any amounts  actually  recovered by the  Indemnified  Party
under  insurance  policies  in  effect  at or prior  to the  Closing  Date.  The
Indemnified Party shall use its reasonable efforts to enforce any such insurance
policies and shall give such  notices  under such  policies as the  Indemnifying
Party reasonably may request by notice in writing. The Indemnified Party and the
Indemnifying  Party shall  cooperate in connection with any claim under any such
insurance policies covered by this Section 12.2(h).

         (i) THE TERM  "LOSSES"  SHALL  SPECIFICALLY  INCLUDE  STRICT  LIABILITY
IMPOSED ON AN INDEMNIFIED  PARTY WHETHER UNDER  ENVIRONMENTAL  LAWS OR OTHERWISE
AND IT IS THE INTENT OF THE PARTIES  THAT THE  INDEMNIFICATION  OBLIGATIONS  SET
FORTH  IN THIS  ARTICLE  XII  SHALL  INCLUDE  AN  OBLIGATION  ON THE PART OF THE
INDEMNIFYING  PARTY TO INDEMNIFY THE INDEMNIFIED  PARTY AGAINST STRICT LIABILITY
ARISING  IN  CONNECTION  WITH A MATTER  FOR  WHICH  SUCH  PARTY IS  ENTITLED  TO
INDEMNIFICATION UNDER THIS ARTICLE.


                                  ARTICLE XIII

                  Limitations on Representations and Warranties

          Section 13.1 Disclaimers of Representations and Warranties.

         The express  representations and warranties of Seller contained in this
Agreement  are  exclusive  and  are in  lieu of all  other  representations  and
warranties,  express,  implied or statutory.  BUYER ACKNOWLEDGES THAT SELLER HAS
NOT MADE, AND SELLER HEREBY  EXPRESSLY  DISCLAIMS AND NEGATES,  AND BUYER HEREBY
EXPRESSLY WAIVES, ANY REPRESENTATION OR WARRANTY,  EXPRESS,  IMPLIED,  AT COMMON
LAW, BY STATUTE OR  OTHERWISE  RELATING TO (a)  PRODUCTION  RATES,  RECOMPLETION
OPPORTUNITIES, DECLINE RATES, OR THE QUALITY, QUANTITY OR VOLUME OF THE RESERVES
OF  HYDROCARBONS,  IF ANY,  ATTRIBUTABLE  TO THE SUBJECT  ASSETS,  (b) EXCEPT AS
OTHERWISE  PROVIDED  HEREIN,  THE ACCURACY,  COMPLETENESS  OR MATERIALITY OF ANY
INFORMATION,  DATA OR OTHER  MATERIALS  (WRITTEN  OR ORAL)  NOW,  HERETOFORE  OR
HEREAFTER   FURNISHED  TO  BUYER  BY  OR  ON  BEHALF  OF  SELLER,  AND  (c)  THE
ENVIRONMENTAL CONDITION OF THE SUBJECT ASSETS.  NOTWITHSTANDING  ANYTHING TO THE
CONTRARY IN THIS AGREEMENT,  SELLER EXPRESSLY  DISCLAIMS AND NEGATES,  AND BUYER
HEREBY WAIVES,  AS TO PERSONAL  PROPERTY,  EQUIPMENT,  INVENTORY,  MACHINERY AND
FIXTURES CONSTI-



                                      -54-








TUTING A PART OF THE  SUBJECT  ASSETS (i) ANY  IMPLIED OR  EXPRESS  WARRANTY  OF
MERCHANTABILITY,  (ii)  ANY  IMPLIED  OR  EXPRESS  WARRANTY  OF  FITNESS  FOR  A
PARTICULAR  PURPOSE,  (iii) ANY  IMPLIED OR EXPRESS  WARRANTY OF  CONFORMITY  TO
MODELS OR SAMPLES OF MATERIALS,  (iv) ANY RIGHTS OF PURCHASERS UNDER APPROPRIATE
STATUTES TO CLAIM  DIMINUTION OF  CONSIDERATION OR RETURN OF THE PURCHASE PRICE,
(v) ANY IMPLIED OR EXPRESS  WARRANTY OF FREEDOM  FROM VICES OR DEFECTS,  WHETHER
KNOWN OR UNKNOWN,  (vi) ANY AND ALL IMPLIED WARRANTIES EXISTING UNDER APPLICABLE
LAW, AND (vii) ANY IMPLIED OR EXPRESS WARRANTY REGARDING ENVIRONMENTAL LAWS, THE
RELEASE OF MATERIALS INTO THE  ENVIRONMENT  OR PROTECTION OF THE  ENVIRONMENT OR
HEALTH,  IT BEING THE EXPRESS  INTENTION OF BUYER AND SELLER THAT (EXCEPT TO THE
EXTENT EXPRESSLY PROVIDED IN HEREIN) THE REAL AND PERSONAL PROPERTY,  EQUIPMENT,
INVENTORY,  MACHINERY,  AND  FIXTURES  CONSTITUTING  PART OF THE ASSETS SHALL BE
CONVEYED TO BUYER AS IS AND IN THEIR  PRESENT  CONDITION AND STATE OF REPAIR AND
BUYER  REPRESENTS  TO  SELLER  THAT  BUYER  HAS MADE OR  CAUSED  TO BE MADE SUCH
INSPECTIONS  WITH  RESPECT  TO  THE  REAL  AND  PERSONAL  PROPERTY,   EQUIPMENT,
MACHINERY,  INVENTORY  AND  FIXTURES AS BUYER DEEMS  APPROPRIATE  AND BUYER WILL
ACCEPT SAME AS IS, WHERE IS, WITH ALL FAULTS,  IN THEIR  PRESENT  CONDITION  AND
STATE OF  REPAIR.  Seller  and Buyer  agree  that,  to the  extent  required  by
applicable law to be effective,  the disclaimers of certain warranties contained
in this section are "conspicuous" disclaimers for the purposes of any applicable
law, rule or order.

          Section 13.2 Waiver of Texas DTPA.

         (a) It is the intent of the Parties  that  Buyer's  rights and remedies
with respect to this Agreement and the transactions contemplated hereby and with
respect  to all acts or  practices  of  Seller,  past,  present  or  future,  in
connection with this Agreement and the transactions contemplated hereby shall be
governed by legal  principles  other than the Texas  Deceptive  Trade  Practices
Consumer  Protection  Act, Tex. Bus. & Com. Code Ann. ss. 17.41 et seq.  (Vernon
1987  and  Supp.   1994)  (the  "DTPA").   As  such,  Buyer  hereby  waives  the
applicability  of the DTPA to this Agreement and the  transactions  contemplated
hereby and any and all duties,  rights or remedies  that might be imposed by the
DTPA,  whether such duties,  rights or remedies are applied directly by the DTPA
itself or indirectly in connection with other statutes; provided, however, Buyer
does not waive Section 17.555 of the DTPA.  Buyer  acknowledges,  represents and
warrants that it is purchasing the Purchased Subject Assets and Purchased Shares
for  commercial or business  use; that Buyer has assets of Five Million  Dollars
($5,000,000) or more according to its most recent financial  statement  prepared
in accordance  with generally  accepted  accounting  principles;  that Buyer has
knowledge and  experience  in financial  and business  matters that enable it to
evaluate the



                                      -55-








merits  and  risks  of a  transaction  such  as  this;  and  that it is not in a
significantly disparate bargaining position with Seller.

         (b) Buyer  expressly  recognizes  that the price for which  Seller  has
agreed to perform its obligations  under this Agreement has been predicated upon
the  inapplicability  of the DTPA and this  waiver  of the DTPA.  Buyer  further
recognizes that Seller, in determining to proceed with the entering into of this
Agreement,  has expressly relied on this waiver and the  inapplicability  of the
DTPA.

          Section 13.3 Casualty Loss.

          (a) Buyer  shall  assume  all risk of loss with  respect  to,  and any
change in the  condition of, the Subject  Assets from the  Effective  Time until
Closing for production of oil, gas and/or other  hydrocarbons  through depletion
(including the watering-out of any well,  collapsed casing or sand  infiltration
of any well) or otherwise.

          (b) If after the  Effective  Time and prior to the Closing any part of
the Subject Assets shall be damaged or destroyed by fire or other casualty or if
any part of the Subject Assets shall be taken in condemnation or under the right
of  eminent  domain or if  proceedings  for such  purposes  shall be  pending or
threatened  ("Casualty  Loss"),  Buyer may elect to (i) cause the Subject Assets
affected by the  Casualty  Loss to be treated as Excluded  Assets and reduce the
Purchase Price by the Allocated  Value of the Subject Asset  affected,  in which
case Seller shall retain all insurance proceeds,  condemnation proceeds, claims,
awards and other  payments  arising out of such  Casualty  Loss, or (ii) require
Working  Interest  Owner to (y) transfer to Buyer the  Purchased  Subject  Asset
affected  notwithstanding  such  Casualty Loss and (z) transfer to Buyer Working
Interest  Owner's share of any  insurance  proceeds and  condemnation  proceeds,
claims,  awards and other payments arising out of such Casualty Loss and require
Operator to retain and not  distribute  to the Selling  Stockholders  Operator's
share of any such insurance proceeds,  condemnation proceeds,  claims, awards or
payments.  Working Interest Owner and Operator shall not voluntarily compromise,
settle or adjust any amounts  payable by reason of a Casualty Loss without first
obtaining the consent of Buyer.  Notwithstanding the foregoing, if following any
Casualty  Loss,  Working  Interest  Owner or Operator  repairs or  replaces  the
damaged or destroyed  property to substantially  its original  condition,  Buyer
shall be required to purchase the Subject Assets affected  without any reduction
in the Purchase  Price and Seller shall retain all insurance  proceeds and other
amounts arising out of such Casualty Loss.

          Section 13.4 Exclusive  Remedies.  THE PARTIES  ACKNOWLEDGE  AND AGREE
THAT THE  REMEDIES  SET  FORTH IN THIS  AGREEMENT,  INCLUDING  THE  DEDUCTIBLES,
LIABILITY LIMITS, SURVIVAL PERIODS, DISCLAIMERS AND LIMITATIONS ON REMEDIES, ARE
INTENDED TO BE, AND SHALL BE, THE EXCLUSIVE  REMEDIES WITH RESPECT TO ANY ASPECT
OF THE TRANSACTIONS



                                      -56-








CONTEMPLATED  BY  THIS  AGREEMENT.   EACH  PARTY  HEREBY  RELEASES,  WAIVES  AND
DISCHARGES,  AND  COVENANTS  NOT TO SUE WITH  RESPECT TO, ANY CAUSE OF ACTION OR
CLAIM  NOT  EXPRESSLY  PROVIDED  FOR  IN  THIS  AGREEMENT   INCLUDING,   WITHOUT
LIMITATION,  CLAIMS UNDER STATE OR FEDERAL SECURITIES LAWS,  AVAILABLE AT COMMON
LAW OR BY STATUTE (INCLUDING FRAUD CLAIMS UNDER CHAPTER 27 OF THE TEXAS BUSINESS
AND COMMERCE CODE).

          Section 13.5 Texas Revised  Partnership  Act. Buyer agrees that if any
Seller which is a Texas general partnership adopts the Texas Revised Partnership
Act ("TRPA")  prior to the Closing Date,  TRPA shall have the same effect on any
claim of Buyer arising under this  Agreement  against such  partnership  and the
partners  thereof as if TRPA had been adopted by such  partnership  prior to the
date of execution of this Agreement.

                                   ARTICLE XIV

                                  Miscellaneous

         Section 14.1 HSR Act. Within 10 days after the execution  hereof,  each
party will file or cause its ultimate  parent entity  (within the meaning of the
HSR Act) to file all materials  required to be filed by it under the HSR Act and
will promptly file any  supplemental  materials  required and will comply in all
material  respects  with the  requirements  of the HSR Act.  Each of the parties
shall request early termination of the HSR Act waiting period and any filings to
be made. None of the parties shall take any action that is reasonably  likely to
have the effect of  delaying,  impairing or impeding the receipt of any required
approvals  and will use their  commercially  reasonable  efforts to secure  such
approvals as promptly as possible.

         Section 14.2 Expenses.  Each party shall be solely  responsible for all
expenses,  including due diligence  expenses,  incurred by it in connection with
this  transaction,  and no party shall be entitled to any reimbursement for such
expenses from the other party hereto.



                                      -57-









         Section  14.3   Independent   Investigation.   Buyer   represents   and
acknowledges that (i) it is knowledgeable of the oil and gas business and of the
usual and  customary  practices  of  producers  such as Seller,  (ii) it has had
access to the Subject Assets, the officers and employees of Seller and Operator,
and the  books,  records  and  files of  Seller  and  Operator  relating  to the
Purchased Subject Assets and Operator, and (iii) in making the decision to enter
into this Agreement, Buyer has relied solely on the basis of its own independent
due diligence  investigation  and upon the  representations  and warranties made
herein. Accordingly,  Buyer acknowledges that Sellers have not made, and Sellers
hereby expressly disclaim and negate, any representation or warranty (other than
those  express  representations  and  warranties  contained  herein),   express,
implied,  at common law,  by statute or  otherwise,  relating  to the  Purchased
Subject Assets or the Purchased Shares.

         Section 14.4 Document Retention. As used in this Section 14.4, the term
"Documents" shall mean all files,  documents,  books,  records and other data of
Operator (other than those that Seller has retained a copy of),  including,  but
not limited to: financial and tax accounting  records;  land, title and division
of interest files; contracts;  engineering and well files; and books and records
related to the business of Operator or the operation of the Subject Assets prior
to the Closing  Date.  Buyer agrees  that,  to the extent the  Documents  are in
Buyer's or Operator's possession,  the Documents shall be open for inspection by
representatives  of Seller at reasonable times and upon reasonable notice during
regular  business  hours for a period of 6 years  following the Closing Date (or
for such longer  period as may be required by law or  governmental  regulation),
and that Seller may during such period at its expense  make such copies  thereof
as it may reasonably request.

         Section 14.5 Entire  Agreement.  This  Agreement,  the  documents to be
executed  hereunder,  and the exhibits  attached  hereto  constitute  the entire
agreement between the Parties hereto pertaining to the subject matter hereof and
supersede all prior  agreements,  understandings,  negotiations and discussions,
whether oral or written, of the Parties pertaining to the subject matter hereof.
No supplement,  amendment, alteration,  modification or waiver of this Agreement
shall be binding unless  executed in writing by the Parties hereto and expressly
referencing this Agreement.

         Section  14.6  Waiver.  No  waiver  of any of the  provisions  of  this
Agreement shall be deemed or shall  constitute a waiver of any other  provisions
hereof (whether or not similar),  nor shall such waiver  constitute a continuing
waiver unless otherwise expressly provided.

         Section 14.7 No Solicitation. Sellers shall, prior to the Closing Date,
neither  solicit bids for the Subject  Assets or Purchased  Shares nor negotiate
the sale of the  Subject  Assets or  Purchased  Shares with any party other than
Buyer or Guarantor.




                                      -58-








          Section  14.8  Publicity.  Sellers and Buyer shall  consult  with each
other with regard to all publicity and other releases  concerning this Agreement
and the transactions  contemplated  hereby and, except as required by applicable
law or the applicable  rules or regulations  of any  governmental  body or stock
exchange,  no party shall issue any such publicity or other release  without the
prior written consent of the other party hereto.

          Section  14.9  Captions.  The  captions  in  this  Agreement  are  for
convenience  only  and  shall  not  be  considered  a  part  of  or  affect  the
construction or interpretation of any provision of this Agreement.

          Section 14.10 No Third Party Beneficiaries.  Nothing in this Agreement
shall  provide  any benefit to any third party or entitle any third party to any
claim, cause of action,  remedy or right of any kind, it being the intent of the
Parties that this Agreement shall not be construed as a third party  beneficiary
contract.

         Section 14.11 Assignment. Except as provided in the following sentence,
no party may assign or delegate any of its rights or duties  hereunder,  without
the prior written consent of the other parties, and any assignment or delegation
made without such  consent  shall be void.  Buyer shall have the right to assign
its rights  hereunder  to an  affiliate  and may effect the  acquisition  of the
Purchased  Shares pursuant to a merger of Operator with and into an affiliate of
Buyer,  provided  in  each  instance  that  Guarantor  guarantees  all  of  such
assignee's  obligations  hereunder  pursuant  to a form  of  guaranty  agreement
substantially  the  same  as that  attached  as  Exhibit  G to be  executed  and
delivered by Guarantor to Seller prior to such  assignment or merger.  Except as
otherwise provided herein, this Agreement shall be binding upon and inure to the
benefit of the parties hereto and their respective permitted successors, assigns
and legal representatives.

          Section 14.12 Governing Law. This Agreement, other documents delivered
pursuant  hereto and the legal  relations  between the Parties shall be governed
and construed in accordance with the laws of the State of Texas,  without giving
effect to  principles of conflicts of laws that would result in the selection of
an alternate jurisdiction.

          Section 14.13 Notices. Any notice, communication, request, instruction
or other document required or permitted  hereunder shall be given in writing and
delivered  in  person  or sent by U.S.  Mail  postage  prepaid,  return  receipt
requested,  or by telex,  facsimile  or telecopy to the  addresses of Seller and
Buyer set forth below. Any such notice shall be effective only upon receipt.




                                      -59-








         Seller:                    Black Stone Holdings Partnership
                                    1001 Fannin, Suite 4750
                                    Houston, Texas 77002
                                    Attention: Mr. Thomas L. Carter, Jr.
                                    Telecopy No.: (713) 658-0943

         Buyer:                     Comstock Oil & Gas, Inc.
                                    5005 LBJ Freeway, Suite 1000
                                    Dallas, Texas 75244
                                    Attention: Mr. M. Jay Allison
                                    Telecopy No.: (214) 701-2111

         with copies to:            Locke Purnell Rain Harrell
                                    2200 Ross Avenue, Suite 2200
                                    Dallas, Texas 75201
                                    Attention: Guy Kerr, Esq.
                                    Telecopy No.: (214) 740-8800

Either party may, by written notice so delivered,  change its address for notice
purposes hereunder.

         Section  14.14  Severability.  If any term or other  provision  of this
Agreement is invalid,  illegal or incapable of being enforced by any rule of law
or public policy,  all other  conditions and provisions of this Agreement  shall
nevertheless  remain in full force and effect so long as the  economic  or legal
substance of the transactions contemplated hereby is not affected in any adverse
manner to either party. Upon such determination that any term or other provision
is invalid,  illegal or incapable of being  enforced,  the Parties  hereto shall
negotiate  in good faith to modify this  Agreement  so as to effect the original
intent of the Parties as closely as possible in an acceptable  manner to the end
that the transactions contemplated hereby are fulfilled to the extent possible.

         Section 14.15 Counterpart Execution.  This Agreement may be executed in
any number of counterparts, and each counterpart hereof shall be effective as to
each party which executes the same whether or not all of the Parties execute the
same counterpart.  If counterparts of this Agreement are executed, the signature
pages from various  counterparts  may be combined into one composite  instrument
for all purposes. All counterparts together shall constitute only one Agreement,
but each counterpart shall be considered an original.

         Section 14.16 Authority of BSHP. Each Seller hereby  authorizes BSHP to
make and  receive  payments  hereunder  on  behalf of such  Seller,  to give and
receive notices on behalf of such Seller  hereunder (and promptly send copies of
any notices to each affected



                                      -60-








Seller),  to  agree  upon  any  adjustments  to  the  Purchase  Price  hereunder
consistent  with the terms of this Agreement on behalf of such Seller,  to agree
on any  extensions  to the  Closing  Date on behalf of such Seller and to select
title and environmental  consultants on behalf of such Seller.  BSHP's authority
does not  include the  ability to modify or amend this  Agreement  in any manner
without each Seller's  consent.  Buyer may rely upon any instrument  executed or
other action taken by BSHP on behalf of Seller pursuant to this Section 14.16 to
the same extent as if such instrument had been executed or action had been taken
by each Seller.

          Section 14.17 W.T. Carter & Bro. Buyer acknowledges that W.T. Carter &
Bro.  is the lessor  with  respect to certain of the  Properties.  Buyer  hereby
acknowledges and agrees that the terms of the relevant leases permit W.T. Carter
& Bro.  to take in kind  and  separately  dispose  of its  royalty  share of the
production  therefrom  or  attributable  thereto free and clear of any costs and
expenses of gathering, handling, treating or transporting such production to the
final point of sale by lessee and/or  lessee's  assigns,  and that W.T. Carter &
Bro. will have the right, but not the obligation, to market its royalty share of
production on the same terms as Buyer's  production from such leases is marketed
free and clear of said costs and expenses of gathering,  handling,  treating and
transportation.

          Section 14.18 Champion C-2.

          (a) Operator has commenced the drilling of the Champion  International
C No. 2 well.  Promptly  after such well  reaches its total depth (as defined in
the existing drilling contract for such well), the current operator of such well
(Operator,  BSHP or its designee, as applicable) shall run or cause to be run in
such well an induction  log and porosity  log as a reasonably  prudent  operator
(provided  that  conditions  permit  such logs to be run) and  promptly  deliver
copies of such logs to Buyer.  Buyer shall have forty-eight  hours after receipt
of such logs (the "C-2 Notice  Period") to notify  Sellers  whether it elects to
reject the Champion C-2 Assets.

          (b) If Buyer elects to reject the Champion C-2 Assets, and such notice
of rejection is received by Sellers prior to Closing,  the Purchase  Price shall
not be adjusted  upward by the costs and  expenses  thereof.  If Buyer elects to
reject the  Champion  C-2 Assets,  and such notice of  rejection  is received by
Sellers  after  Closing,  Sellers  shall pay Buyer an amount equal to the actual
costs and expenses  incurred by Sellers after the  Effective  Time to drill such
well to total depth.

          (c) BSHP or its designee shall have the sole right to operate the well
after Closing until the end of the C-2 Notice Period.  If Buyer elects to reject
the  Champion  C-2  Assets,  BSHP or its  designee  shall have the sole right to
continue to operate said well.




                                      -61-








         (d) In the event that  Sellers  receive  notice,  within the C-2 Notice
Period,  of Buyer's  election to reject the  Champion  C-2  Assets,  and Sellers
complete the Champion International C No. 2 well as a producer, then (i) if such
completion occurs prior to Closing,  the Champion C-2 Assets shall be treated as
Excluded Assets,  and (ii) if such completion occurs after Closing,  Buyer shall
convey to Sellers, the Champion C-2 Assets promptly after such completion.

          Section  14.19  Guaranty  Agreement.  Pursuant  to  the  terms  of the
Guaranty  Agreement of even date herewith  executed by Guarantor,  Guarantor has
guaranteed all of the obligations of Buyer hereunder.

          Section  14.20 Joint  Operating  Agreement/AMI.  Buyer,  Operator  and
Working  Interest Owners shall execute the Center Grove JOA and the North Double
A JOA.  Buyer's  interest  under the Center Grove JOA shall be 30% (being 30% of
Operator's  and  Working  Interest  Owner's  interests  in  said  area as of the
Effective Time).  Buyer's interest under the North Double A JOA shall be 12.825%
(being 30% of Working Interest Owners' and Operator's  interests in said area as
of the Effective  Time).  Buyer's interest in the Camden Tram JOA shall be 18.6%
(being 30% of Working Interest Owners' and Operator's  interest thereunder as of
the  Effective  Time).  The area of mutual  interest with respect to each of the
foregoing joint operating  agreements shall be as shown on Exhibit "H". Operator
shall be designated as operator thereunder, subject to the provisions of Section
7.2 hereof.

                  [Remainder of Page Intentionally Left Blank]




                                      -62-








          IN WITNESS  WHEREOF,  Sellers,  Buyer and Guarantor  have executed and
delivered this Agreement as of the date first set forth above.

WORKING INTEREST OWNERS:

BLACK STONE HOLDINGS PARTNERSHIP

By    C & S Holdings, Managing Partner

By:        /s/THOMAS L. CARTER, JR.
           ------------------------
           Thomas L. Carter, Jr.
           Managing Partner

By    North Star Oil & Gas, General Partner

By:        /s/ALEXANDER D. STUART
           -----------------------
           Alexander D. Stuart
           Managing General Partner

C & S HOLDINGS

By:        /s/THOMAS L. CARTER, JR.
           ------------------------
Name:      Thomas L. Carter, Jr.
Title:     Managing Partner

By    North Star Oil & Gas, General Partner

By:        /s/ALEXANDER D. STUART
           ------------------------
           Alexander D. Stuart
           Managing General Partner

C. D. LANGHORNE, JR., INC.

By:        /s/C. D. LANGHORNE, JR.
           ------------------------    
Name:      C. D. Langhorne, Jr.
Title:     President

           /s/ALAN DALBY
           ------------------------    
           Alan Dalby

           /s/PAMELA BURNEY
           ------------------------
           Pamela Burney

                                      -63-




ETOCO, INC.

By:        /s/JAMES E. THORP
           ------------------------   
           James E. Thorp
           President

HENNIG PRODUCTION COMPANY

By:        /s/Don E. Hennig
           ------------------------
           Don E. Hennig
           President

           /s/Hugh J. Idstein
          ------------------------ 
           HUGH J. IDSTEIN

           /s/MARGARET A. S. IDSTEIN
          ------------------------
           Margaret A. S. Idstein

KERRCO INC.

By:        /s/J. ROBINSON KERR
          ------------------------
           J. Robinson Kerr
           President

WOOLLY BUGGER PARTNERS, LTD.

By CASTLETON ENERGY CORPORATION, GENERAL PARTNER

By:        /s/ROBERT SINCLAIR
          ------------------------
           Robert Sinclair
           President

W. T. CARTER & BRO.

By:        /s/THOMAS L. CARTER
          ------------------------
           Thomas L. Carter
           Managing Partner

                                      -64-





SELLING STOCKHOLDERS:

           /s/THOMAS L. CARTER, JR.
          ------------------------
           Thomas L. Carter

           /s/ALEXANDER D. STUART
          ------------------------
           Alexander D. Stuart

           /s/ROBERT D. STUART, JR.
          ------------------------
           Robert D. Stuart, Jr.

           /s/DONALDSON C. PILLSBURY
          ------------------------
           Donaldson C. Pillsbury

           /s/JAMES M. STUART
          ------------------------
           James M. Stuart

           /s/PHIL BROXSON
          ------------------------
           Phil Broxson

           /s/JOHN MARTIN
          ------------------------
           John Martin

           /s/NENETTE G. CARTER
          ------------------------
           Nenette G. Carter

           /s/AUBREY CARTER
          ------------------------ 
           Aubrey Carter

           /s/SARA C. WALNE
          ------------------------
           Sara C. Walne

           /s/GEORGIA C. HERZOG
          ------------------------
           Georgia C. Herzog

           /s/MAUDE C. TRIONE
          ------------------------
           Maude C. Trione

           /s/MARJORIE C. CAIN
          ------------------------
           Marjorie C. Cain

                                      -65-





OPERATOR:

BLACK STONE OIL COMPANY

By:        /s/THOMAS L. CARTER, JR.
          ------------------------
           Thomas L. Carter, Jr.
           President


BUYER:

COMSTOCK OIL & GAS, INC.

By:        /s/M. JAY ALLISON
          ------------------------
           M. Jay Allison
           President


GUARANTOR:

COMSTOCK RESOURCES, INC.

By:        /s/M. JAY ALLISON
          ------------------------
           M. Jay Allison
           President


                                      -66-


E:\CORP\21512\52110\DOCS\PSA.009






                                   SCHEDULE I

                             WORKING INTEREST OWNERS

Black Stone Holdings  Partnership,  a Texas general partnership C&S Holdings,  a
Texas general  partnership C. D. Langhorne,  Jr., Inc., a Texas corporation Alan
Dalby and wife Pamela Burney ETOCO,  Inc., a Texas corporation Hennig Production
Company,  a sole  proprietorship  Hugh J. Idstein and wife Margaret A.S. Idstein
Kerrco,  Inc., a Delaware  corporation  Woolly  Bugger  Partners,  Ltd., a Texas
limited partnership W.T. Carter & Bro., a Texas general partnership









                                   SCHEDULE II

                              SELLING STOCKHOLDERS

        Stockholder                                      Number of Shares

Thomas L. Carter, Jr.                                         34,534

Robert D. Stuart, Jr.                                          6,063

Alexander D. Stuart                                           18,313

Donaldson C. Pillsbury                                         1,637

James M. Stuart                                                1,275

Phil Broxson                                                   1,190

John Martin                                                    1,190

Nenette G. Carter                                                707

Aubrey Carter                                                    707

Sara C. Walne                                                    706

Georgia C. Herzog                                                706

Maude C. Trione                                                  706

Marjorie C. Cain                                                 706

                                                              68,440
                                                             
                                                                 Execution Copy
                                CREDIT AGREEMENT

                             dated as of May 1, 1996


                            COMSTOCK RESOURCES, INC.,

                            COMSTOCK OIL & GAS, INC.,

                      COMSTOCK OIL & GAS - LOUISIANA, INC.

                         COMSTOCK OFFSHORE ENERGY, INC.,

                             THE BANKS PARTY HERETO

                         BANK ONE, TEXAS, N.A., CO-AGENT

                                       AND

                  THE FIRST NATIONAL BANK OF CHICAGO, AS AGENT







                                TABLE OF CONTENTS

Section 1.    Definitions......................................................2
              1.1  Certain Definitions.........................................2
              1.2  Other Definitions; Rules Of Construction...................14

SECTION 2.    The Commitments.................................................14
              2.1  Advances...................................................14

SECTION 3.    The Advances....................................................16
              3.1  Disbursement of Advances...................................16
              3.2  Conditions of Advances.....................................18
              3.3  Letter of Credit Reimbursement Payments....................20
              3.4. Withholding Tax Exemption..................................23

SECTION 4.    Payment and Prepayment; Fees; Change in
              Circumstances...................................................24
              4.1  Principal Payments.........................................24
              4.2  Interest Payment...........................................25
              4.3  Fees.......................................................25
              4.4  Payment Method.............................................26
              4.5  No Setoff or Deduction.....................................26
              4.6  Payment on Non-Business Day; Payment
                   Computations...............................................27
              4.7. Yield Protection...........................................27
              4.8. Changes in Capital Adequacy Regulations....................27
              4.9. Availability of Types of Advances..........................28
              4.10.Funding Indemnification....................................28
              4.11.Bank Statements; Survival of Indemnity.....................28

SECTION 5.    Security........................................................29
              5.1  Security Documents.........................................29
              5.2  Guaranty...................................................30
              5.3  Additional Security Documents..............................30

SECTION 6.    Representations and Warranties..................................30
              6.1  Corporate Existence and Power..............................30
              6.2  Corporate Authority........................................31
              6.3  Binding Effect.............................................31
              6.4  Subsidiaries...............................................31
              6.5  Liens......................................................31
              6.6  Litigation.................................................31
              6.7  Financial Condition........................................31
              6.8  Use of Advance.............................................32
              6.9  Security Documents.........................................32
              6.10 Consents, Etc..............................................32







SECTION                                                                     PAGE

              6.11 Taxes..................................................... 32
              6.12 Title to Properties....................................... 32
              6.13 ERISA..................................................... 33
              6.14 Environmental and Safety Matters.......................... 33
              6.15 Direct Benefit............................................ 34
              6.16 Solvency.................................................. 34
              6.17 Disclosure................................................ 34

SECTION 7.    Covenants.......................................................34
              7.1  Affirmative Covenants......................................34
                   (a) Preservation of Corporate Existence,
              7.2  Negative Covenants.........................................38
                   (a) Current Ratio..........................................38
                   (b) Tangible Net
                       Worth..................................................38
                   (c) Interest Coverage Ratio................................39
                   (d) Indebtedness...........................................39
                   (e) Liens..................................................39
                   (f) Merger; Acquisitions; Etc..............................40
                   (g) Disposition of Assets; Etc.............................41
                   (h) Nature of Business.....................................41
                   (i) Investments, Advance and Advances,
                       Contingent Liabilities.................................41
                   (j) Dividends..............................................42
                   (k) Transactions with Affiliates...........................42
                   (l) Subordinated Debt......................................42
                   (m) Payments and Modification
                       of Debt................................................42
                   (n) Additional Covenants...................................43

SECTION 8.    Default.........................................................43
              8.1  Events of Default..........................................43
              8.2  Remedies...................................................45


CREDIT AGREEMENT                                                         Page ii






SECTION                                                                     PAGE

              8.3  Distribution of Proceeds...................................46
              8.4  Letter of Credit Liabilities...............................47

SECTION 9.    The Agent and the Banks.........................................48
              9.1  Appointment; Nature of Relationship........................48
              9.2  Powers.....................................................48
              9.3  General Immunity...........................................48
              9.4  No Responsibility for Loans, Recitals, Etc. ...............48
              9.5  Action on Instruction of Banks.............................49
              9.6  Employment of Agents and Counsel...........................49
              9.7  Reliance on Documents; Counsel.............................49
              9.8  Agent's Reimbursement and Indemnification..................49
              9.9  Notice of Default .........................................50
              9.10 Rights as a Bank...........................................50
              9.11 Bank Credit Decision.......................................50
              9.12 Successor Agent............................................50
              9.13 Pro Rata Sharing by Banks..................................51
              9.14 Determination of Borrowing Base, Etc.......................51
              9.15 Co-Agent...................................................52

SECTION 10.   Miscellaneous...................................................52
              10.1  Amendments; Etc...........................................52
              10.2  Notices...................................................52
              10.3  Conduct No Waiver; Remedies Cumulative....................53
              10.4  Reliance on and Survival of Various
                    Provisions................................................53
              10.5  Expenses; Indemnification.................................53
              10.6  Successors and Assigns....................................55
              10.7  CHOICE OF LAW.............................................58
              10.8  Table of Contents and Headings............................58
              10.9  Construction of Certain Provisions........................58
              10.10 Integration and Severability..............................59
              10.11 Interest Rate Limitation..................................59
              10.12 Counterparts..............................................9
              10.13 Independence of Covenants.................................59
              10.14 Consent to Jurisdiction...................................59
              10.15 JURY TRIAL WAIVER.........................................60
              10.16 Joint and Several Obligations; Contribution
                    Rights; Savings Clause....................................60


CREDIT AGREEMENT                                                        Page iii





              10.17 Consents to Renewals, Modifications and
                    Other Actions and Events..................................62
              10.18 Waivers, Etc..............................................63
              10.19 Confidentiality...........................................63


EXHIBIT

              A.......Bridge Note
              B.......Consent and Amendment of Security Documents
              C.......Revolving Credit Note
              D.......Term Note
              E.......Request for Loan
              F.......Assignment and Acceptance
              G.......Assumption Agreement


SCHEDULES

              6.4.....Subsidiaries
              7.2(d)..Permitted Indebtedness
              7.2(e)..Permitted Liens
              7.2(i)..CRI Guaranteed Indebtedness


CREDIT AGREEMENT                                                         Page iv





                                CREDIT AGREEMENT


     THIS AGREEMENT,  dated as of May 1, 1996, is among COMSTOCK RESOURCES, INC.
a Nevada  corporation  ("CRI"),  COMSTOCK OIL & GAS, INC., a Nevada  corporation
("COG"),  COMSTOCK OIL & GAS - LOUISIANA,  INC., a Nevada corporation  ("COGL"),
COMSTOCK OFFSHORE ENERGY,  INC., a Delaware  corporation ("COE") (CRI, COG, COGL
and COE may  hereinafter  collectively be referred to as the  "Borrowers"),  the
lenders  party  hereto  from  time  to  time  (collectively,   the  "Banks"  and
individually,  a "Bank"),  BANK ONE, TEXAS,  N.A., as co-agent for the Banks (in
such capacity,  the "co-agent") and THE FIRST NATIONAL BANK OF CHICAGO, as agent
for the Banks (in such capacity, the "Agent").


                                    RECITALS

     A. The Borrowers,  Bank One,  Texas,  N.A., NBD Bank and NBD Bank, as agent
for Bank One, Texas,  N.A. and itself executed a Credit Agreement dated July 31,
1995, as amended (the "Existing Credit Agreement"), which amended and restated a
Credit  Agreement  dated as of  September  30, 1994,  as amended,  which in turn
amended and  restated a Credit  Agreement  dated as of  November  15,  1993,  as
amended.  The First  National  Bank of Chicago is the assignee of all rights and
interests of NBD Bank under the Existing  Credit  Agreement,  both in NBD Bank's
capacity  as a bank  and as  agent  thereunder  and  under  all  agreements  and
documents executed in connection therewith.

     B. The  Borrowers  have  requested  that the Banks  amend and  restate  the
Existing  Credit  Agreement as herein  provided,  replacing and  refinancing the
indebtedness  thereunder  with a three year secured  revolving  credit  facility
providing  for  revolving  credit  loans in the  aggregate  principal  amount of
$166,000,000  converting  to a two year  term  loan,  and a  bridge  loan in the
aggregate  principal  amount of $10,000,000 in order to provide bridge financing
for the Borrowers'  acquisition of properties from Black Stone Oil Company,  and
the Banks are willing to establish such a credit  facility and loans in favor of
the Borrowers and amend and restate the Existing  Credit  Agreement on the terms
and conditions herein set forth.



                                    AGREEMENT

     In  consideration  of the  premises  and of the  mutual  agreements  herein
contained,  the parties hereto agree that the Existing Credit Agreement shall be
amended and restated as follows:







     SECTION 1. Definitions

     1.1 Certain Definitions. As used herein, the following terms shall have the
following respective meanings:

     "Advances" shall mean the Loans and the Letter of Credit Advances.

     "Advance  Date"  shall  mean  each  date for the  making,  continuation  or
conversion of an Advance as specified in the notice  delivered by the Borrowers,
or any of them, permitted by this Agreement.

     "Affiliate",  when used with  respect  to any  person  shall mean any other
person which,  directly or indirectly,  controls or is controlled by or is under
common control with such person or any other person which is owned 5% or more by
such person or any Subsidiary or other Affiliate of such person. For purposes of
this  definition  "control"  (including  the  correlative  meanings of the terms
"controlled  by" and "under common control  with"),  with respect to any person,
shall mean possession,  directly or indirectly,  of the power to direct or cause
the direction of the management and policies of such person, whether through the
ownership of voting securities or otherwise.

     "Applicable  Margin"  shall  mean,  with  respect to any  Eurodollar  Loan,
Floating  Rate  Loan and  Commitment  Fee,  as the case may be,  the  applicable
percentage  set forth in the table below based upon a fraction,  expressed  as a
percentage,  determined  as of the last day of each fiscal  quarter of CRI,  the
numerator of which is the daily average of the Advances  outstanding during such
fiscal  quarter  and the  denominator  of  which  is the  daily  average  of the
Borrowing Base during such fiscal quarter (the "Utilization Percentage"):

================================================================================
         Utilization          Eurodollar       Floating           Commitment   
        Percentage "UP"        Rate Loan       Rate Loan          Fee under   
                                                               Section 4.3(a)(i)
- ------------------------------------------------------------------------------
           UP>90%                2.00%           0.50%             .50%
- ------------------------------------------------------------------------------
         UP 75% to 90%           1.75%           0.50%             .375%
- ------------------------------------------------------------------------------
         UP 55% to 75%           1.50%           0.25%             .375%
- ------------------------------------------------------------------------------
         UP Less than 55%        1.25%              0%             .25%
==============================================================================

The Utilization  Percentage  shall be determined by the Agent at the end of each
fiscal  quarter and shall remain in effect for the following  fiscal  quarter of
CRI,  provided that the Agent shall also  determine the  Utilization  Percentage
promptly after the initial issuance of any Subordinated Debt


CREDIT AGREEMENT                                                         Page 2





and adjust the  Applicable  Margin upon such  determination,  and the Applicable
Margin in effect on the first day of any Interest  Period of any Eurodollar Loan
shall remain in effect for the entire Interest Period. Notwithstanding the above
or anything else in this  Agreement,  (a) upon and during the continuance of any
Event of Default,  the Applicable  Margin shall be based on the highest possible
Applicable  Margin  described in the table above,  regardless of the Utilization
Percentage and (b) at any time any amount is outstanding  under the Bridge Loan,
the Applicable  Margin with respect to Floating Rate Loans and  Commitment  Fees
shall be 0.50% and the  Borrowers  shall not be  entitled  to obtain  Eurodollar
Loans.

     "Bank   Obligations"   shall  mean  all   indebtedness,   obligations   and
liabilities,  whether now or hereafter arising, of the Borrowers to the Agent or
any Bank pursuant to any of the Loan Documents.

     "Black Stone" shall mean Black Stone Oil Company, a Texas corporation.

     "Borrowing  Base" shall mean an amount equal to the value of the Collateral
determined  by the Agent and the  Co-Agent (or by each of the Banks as described
in Section 9.14) in their sole discretion,  based on the Agent's, the Co-Agent's
or each Bank's, as the case may be, customary and standard  practices in lending
to oil and gas companies generally,  including without limitation their standard
engineering  criteria and oil and gas lending  criteria (and it is  acknowledged
and  agreed  that such  customary  and  standard  practices,  including  without
limitation such engineering criteria and oil and gas lending criteria,  shall be
determined  by the Agent,  the  Co-Agent  and each Bank,  as the case may be, in
their sole discretion, and such determination shall be conclusive and binding).

     "Bridge Loan" means any borrowing under Section 3.1 evidenced by the Bridge
Note and made pursuant to Section 2.1(c).

     "Bridge Note" means any  promissory  note of the Borrowers  evidencing  the
Bridge Loan, in  substantially  the form annexed hereto as Exhibit A, as amended
or modified  from time to time and together  with any  promissory  note or notes
issued in  exchange  or  replacement  therefor.  "Business  Day"  means (i) with
respect to any borrowing,  payment or rate selection of Eurodollar  Loans, a day
(other than a Saturday or Sunday) on which banks  generally  are open in Chicago
and New York for the conduct of substantially  all of their  commercial  lending
activities  and on which dealings in United States dollars are carried on in the
London  interbank  market and (ii) for all other  purposes,  a day (other than a
Saturday or Sunday) on which banks generally are open in Chicago for the conduct
of substantially all of their commercial lending activities.

     "Change in Control"  means the  acquisition  by any Person,  or two or more
Persons acting in concert,  of beneficial  ownership (within the meaning of Rule
13d-3 of the Securities


CREDIT AGREEMENT                                                         Page 3





and Exchange  Commission under the Securities Exchange Act of 1934) of more than
50% of the outstanding shares of voting stock of CRI.

     "Code" shall mean the Internal  Revenue Code of 1986,  as amended from time
to time, and the regulations thereunder.

     "CMC" shall mean Comstock Management Corporation, a Nevada corporation.

     "CNG" shall mean Comstock Natural Gas, Inc., a Nevada corporation.

     "CNG/CRI  Guaranty  Formula"  shall mean, as of any date, the sum of (a) an
amount  equal to 70% of the amount of Eligible CNG  Accounts  Receivable  (other
than  those  described  in clause  (b))  plus (b) an amount  equal to 90% of the
amount of  Eligible  CNG  Accounts  Receivable  supported  by  letters of credit
confirmed by a financial  institution  acceptable to the Agent in its reasonable
discretion;  provided,  that,  the amount of Eligible  CNG  Accounts  Receivable
described in this clause (b) included in the CNG  Borrowing  Base may not exceed
50% of the aggregate amount of Eligible CNG Accounts Receivable.

     "Collateral"  shall have the  meaning  ascribed  thereto in Section  5.1(a)
hereof.

     "Commitments" shall mean, with respect to each Bank, the commitment of each
such  Bank to make  Revolving  Credit  Advances  and the Term Loan  pursuant  to
Sections 2.1(a) and (b), in amounts not exceeding in aggregate  principal amount
outstanding at any time the respective commitment amount for each Bank set forth
next to the name of each such Bank on the signature  pages hereof or established
pursuant to Section 10.6, as the case may be, as such amount may be reduced from
time to time pursuant to Sections 2.1(a) or (b).

     "Consent and  Amendment of Security  Documents"  shall mean the consent and
amendment of security  documents  entered into by the Borrowers,  the Guarantors
and the Agent pursuant to this Agreement in substantially the form of Exhibit B,
as amended or modified from time to time.

     "Consolidated"  or  "consolidated"  shall mean, when used with reference to
any financial term in this  Agreement,  the aggregate for two or more Persons of
the  amount  signified  by  such  term  for all  such  Persons  determined  on a
consolidated basis and in accordance with GAAP.

     "Consolidated   Adjusted  Cash  Flow"  shall  mean,  for  any  period,  the
Consolidated  Net Income for such period  taken as a single  accounting  period,
plus, to the extent deducted in determining such  Consolidated  Net Income,  all
depreciation,  amortization and depletion  expense,  and other non cash charges,
provided that in determining  Consolidated Net Income as used in this definition
the  following  shall be excluded,  without  duplication:  (a) the income of any
Person accrued prior to the date such Person is merged into or consolidated with
a Borrower or such


CREDIT AGREEMENT                                                          Page 4





Person's  assets are acquired by a Borrower,  (b) the proceeds of any  insurance
policy,  (c)  gains  or  losses  from  the  sale,  exchange,  transfer  or other
disposition  of  property or assets of any  Borrower  and related tax effects in
accordance with GAAP and (d) any  extraordinary  or  non-recurring  gains of any
Borrower, and related tax effects in accordance with GAAP.

     "Consolidated  Interest Expense" shall mean, for any period, total interest
and  related  expense  (including,  without  limitation,  that  portion  of  any
capitalized lease obligation attributable to interest expense in conformity with
GAAP,  amortization  of debt discount,  all capitalized  interest,  the interest
portion of any deferred  payment  obligations,  all  commissions,  discounts and
other fees and  charges  owed with  respect to  letters  of credit  (other  than
letters of credit for CNG  utilized  for  purchasing  natural  gas in  aggregate
amount not exceeding $1,000,000) and bankers acceptance financing, the net costs
and net payments  under any interest rate hedging,  cap or similar  agreement or
arrangement,  prepayment charges,  agency fees,  administrative fees, commitment
fees and  capitalized  transaction  costs  allocated to interest  expense) paid,
payable or accrued during such period,  without duplication for any period, with
respect to all  outstanding  Indebtedness  of CRI and its  Subsidiaries,  all as
determined for CRI and its Subsidiaries on a consolidated  basis for such period
in accordance with GAAP.

     "Consolidated Net Income" shall mean, for any period, the net income of CRI
and its Subsidiaries for such period, determined in accordance with GAAP, minus,
to the extent not deducted  from such net income,  the amount of allowable  cash
dividends  paid during such period on the 1994  Preferred  Stock and on the 1995
Preferred Stock.

     "Contingent  Liabilities"  of any person  shall mean,  as of any date,  all
obligations  of such person or of others for which such  person is  contingently
liable, as obligor, guarantor, surety or in any other capacity, or in respect of
which  obligations such person assures a creditor against loss or agrees to take
any action to prevent  any such loss  (other  than  endorsements  of  negotiable
instruments   for   collection   in  the   ordinary   course  of  business   and
indemnifications  typical and customary in the ordinary  course of such person's
oil  and  gas  business  in  connection  with  operating  agreements  and  other
agreements  executed  in the  ordinary  course  of  such  person's  oil  and gas
business),  including without  limitation all reimbursement  obligations of such
person in respect of any letters of credit,  surety bonds or similar obligations
and all  obligations of such person to advance funds to, or to purchase  assets,
property or services  from,  any other person in order to maintain the financial
condition of such other person.

     "Continuing  Directors"  of any  person  shall mean the  directors  of such
person on the  Effective  Date and each other  director  of such  person if such
other  director's  nomination  for  election to the Board of  Directors  of such
person is  recommended  by a majority of the then  Continuing  Directors of such
Board of Directors.

     "CPI" shall mean Crosstex Pipeline, Inc., a Texas corporation.




CREDIT AGREEMENT                                                         Page 5






     "Current  Assets"  and  "Current  Liabilities"  shall  mean all  assets  or
liabilities of CRI and its Subsidiaries,  on a consolidated basis  respectively,
which  should be  classified  as  current  assets  and  current  liabilities  in
accordance with GAAP;  provided that the calculation of Current Assets shall not
include receivables of the Borrowers owing by any Affiliate in excess of 90 days
or subject to any dispute or offset or otherwise  unacceptable,  advances by the
Borrowers to any  Affiliate or any asset  classified  as a Current  Asset solely
because it is held for sale,  and  Current  Liabilities  shall not  include  the
current maturities of any Indebtedness or the Bridge Note.

     "Default"  shall mean any Event of Default or any event or condition  which
might become an Event of Default with notice or lapse of time or both.

     "Dollars"  and "$" shall  mean the  lawful  money of the  United  States of
America.

     "Effective  Date"  shall mean the  effective  date  specified  in the final
paragraph of this Agreement.

     "Eligible CNG Accounts  Receivable" shall mean, as of any date, those trade
accounts  receivable  owned by CNG which are payable in  Dollars,  valued at the
face  amount  thereof  less  sales,  excise or similar  taxes and less  returns,
discounts,  claims,  credits and  allowances  of any nature at any time  issued,
including  without  limitation  rebates and advertising  allowances  receivable,
owing,  granted,  outstanding,  available or claimed,  but shall not include any
such account receivable (a) that is not a bona fide existing  obligation created
by the sale and actual  delivery of  inventory,  goods or other  property or the
furnishing of services or other good and sufficient  consideration  to customers
of CNG in the ordinary  course of  business,  (b) that is more than 60 days past
due, (c) that is subject to any known dispute,  contra-account,  defense, offset
or  counterclaim  or any lien,  encumbrance  or security  interest,  (d) that is
payable by any person  located  outside the United  States  (which  shall not be
deemed to include any  territories of the United States) and is not supported by
a letter of credit  issued by banks  acceptable  to the Agent in its  reasonable
discretion,  (e) that is payable by the United States or any of its departments,
agencies  or  instrumentalities,  (f) that is payable by any person  that is the
subject of any  proceeding  seeking to  adjudicate it a bankrupt or insolvent or
seeking  liquidation,  winding up or  reorganization,  arrangement,  adjustment,
protection,  relief or  composition of it or its debts under any law relating to
bankruptcy,  insolvency or  reorganization or relief or protection of debtors or
seeking the  appointment  of a receiver,  trustee,  custodian  or other  similar
official  for it or for any  substantial  part of its  property,  or that is not
generally  paying its debts as they  become due or has  admitted  in writing its
inability to pay its debts  generally or has made a general  assignment  for the
benefit of  creditors,  (g) which is  evidenced  by a  promissory  note or other
instrument,  (h) that is payable by any person,  the aggregate accounts owing to
CNG aggregate, are in excess of 10% of all Eligible CNG Accounts Receivable (but
only to the extent of the amount in excess of 10%),  unless such  receivable  is
secured  by a letter of  credit,  or (i) for which the  prospect  of  payment or
performance  is or will be impaired as determined by the Agent in its reasonable
discretion.


CREDIT AGREEMENT                                                          Page 6






     "Environmental Laws" at any date shall mean all provisions of law, statute,
ordinances, rules, regulations,  judgments, writs, injunctions, decrees, orders,
awards and  standards  promulgated  by the  government  of the United  States of
America or any foreign  government or by any state,  province,  municipality  or
other  political  subdivision  thereof  or  therein  or by  any  court,  agency,
instrumentality,  regulatory  authority or  commission  of any of the  foregoing
concerning the  protection  of, or regulating the discharge of substances  into,
the environment.

     "ERISA" shall mean the Employee  Retirement Income Security Act of 1974, as
amended from time to time,  together with any successor  statute thereto and the
regulations thereunder.

     "ERISA  Affiliate"  shall  mean  any  trade  or  business  (whether  or not
incorporated) which (i) together with the Borrowers or any Subsidiary,  would be
treated as a single employer under Section 414(b) or (c) of the Code or (ii) for
purposes of liability  under Section  412(C)(11)  of the Code,  the lien created
under  Section  412(n)  of the Code or for a tax  imposed  for  failure  to meet
minimum  funding  standards under Section 4971 of the Code, a member of the same
affiliated  service group (within the meaning of Section  401(m) of the Code) as
the  Borrowers or any  Subsidiary,  or any other trade or business  described in
clause (i) above.

     "Eurodollar  Base Rate" shall mean,  with respect to a Eurodollar  Loan for
the relevant  Eurodollar Interest Period, the rate determined by the Agent to be
the rate at which  First  Chicago  offers  to place  deposits  in  Dollars  with
first-class  banks in the  London  interbank  market  at  approximately  11 a.m.
(London  time) two  Business  Days  prior to the  first  day of such  Eurodollar
Interest  Period,  in  the  approximate   amount  of  First  Chicago's  relevant
Eurodollar  Loan and having a maturity  approximately  equal to such  Eurodollar
Interest Period.

     "Eurodollar  Interest Period" or "Interest Period" shall mean, with respect
to a Eurodollar Loan, a period of one, two, three or six months  commencing on a
Business  Day  selected  by the  Borrowers  pursuant  to  this  Agreement.  Such
Eurodollar Interest Period shall end on the day which corresponds numerically to
such date one, two, three or six months thereafter,  provided,  however, that if
there is no such numerically  corresponding day in such next,  second,  third or
sixth succeeding  month,  such Eurodollar  Interest Period shall end on the last
Business  Day of such  next,  second,  third or  sixth  succeeding  month.  If a
Eurodollar  Interest Period would otherwise end on a day which is not a Business
Day, such Eurodollar  Interest Period shall end on the next succeeding  Business
Day, provided, however, that if said next succeeding Business Day falls in a new
calendar  month,  such  Eurodollar  Interest Period shall end on the immediately
preceding Business Day.

     "Eurodollar  Loan" shall mean a Loan which bears  interest at a  Eurodollar
Rate.

     "Eurodollar  Rate" shall mean,  with respect to a  Eurodollar  Loan for the
relevant  Eurodollar  Interest  Period,  the sum of (i) the  quotient of (a) the
Eurodollar Base Rate applicable


CREDIT AGREEMENT                                                          Page 7





to such  Eurodollar  Interest  Period,  divided  by (b) one  minus  the  Reserve
Requirement  (expressed  as a decimal)  applicable to such  Eurodollar  Interest
Period, plus (ii) the Applicable Margin.

     "Event of Default" shall mean any of the events or conditions  described in
Section 8.1.

     "Federal  Funds Rate" shall mean,  for any day, an interest  rate per annum
equal  to  the  weighted  average  of  the  rates  on  overnight  Federal  funds
transactions  with  members of the Federal  Reserve  System  arranged by Federal
funds  brokers on such day, as published  for such day (or, if such day is not a
Business Day, for the immediately preceding Business Day) by the Federal Reserve
Bank of New York,  or, if such rate is not so  published  for any day which is a
Business Day, the average of the quotations at  approximately  10 a.m.  (Chicago
time) on such day on such transactions  received by the Agent from three Federal
funds  brokers  of  recognized  standing  selected  by the  Agent  in  its  sole
discretion.

     "Floating  Rate"  shall mean the per annum rate equal to the sum of (a) (i)
with  respect to Revolving  Credit  Loans,  the Term Loan and any other  amounts
owing hereunder other than the Bridge Loan, the Applicable Margin, and (ii) with
respect to the Bridge Loan, three percent (3.0%) per annum, plus (b) the greater
of (i) the per  annum  rate  announced  by the  Agent  from  time to time as its
"corporate  base rate",  and (ii) the sum of one-half  percent  (1/2%) per annum
plus the Federal Funds Rate,  such Floating Rate to change  simultaneously  with
any change in such  "corporate base rate" or Federal Funds Rate, as the case may
be;

all as  conclusively  determined  in good  faith  by the  Agent,  such sum to be
rounded up, if necessary, to the nearest whole multiple of 1/16 of 1%.

     "Floating  Rate Loan" shall mean any Loan bearing  interest at the Floating
Rate.

     "GAAP" shall mean generally  accepted  accounting  principles  applied on a
basis consistent with that reflected in the financial  statements referred to in
Section 6.7 hereof.

     "Guarantor"  shall mean each  present and future  Subsidiary  of any of the
Borrowers  (other than any Borrower and Comstock  DR-II Oil and Gas  Acquisition
Limited Partnership).

     "Guaranty" shall mean each guaranty of each Guarantor delivered at any time
pursuant to Section 5.2.

     "Hydrocarbons" shall mean oil, gas casinghead,  gas, drip gasoline, natural
gas and condensates and all other liquid or gaseous hydrocarbons.

     "Indebtedness"  of  any  person  shall  mean,  as  of  any  date,  (a)  all
obligations of such Person for borrowed  money,  (b) all  obligations  which are
secured by any lien or


CREDIT AGREEMENT                                                          Page 8





encumbrance  existing  on  property  owned  by such  Person  whether  or not the
obligation  secured  thereby shall have been assumed by such Person,  other than
those  obligations which are incurred in the ordinary course of business and are
not required to be shown as a liability on a balance  sheet in  accordance  with
GAAP, (c) all  obligations as lessee under any lease which,  in accordance  with
GAAP, is or should be capitalized  on the books of the lessee,  (d) the deferred
purchase price for goods,  property or services acquired by such Person, and all
obligations  of such Person to purchase such goods,  property or services  where
payment  therefore  is required  regardless  of whether or not  delivery of such
goods or property or the  performance of such services is ever made or tendered,
other than unsecured trade payables  incurred in the ordinary course of business
(e) all obligations of such Person to advance funds to, or to purchase  property
or services from, any other Person in order to maintain the financial  condition
of such Person,  (f) all  obligations  of such person in respect of any interest
rate or  currency  swap,  rate cap or other  similar  transaction  (valued in an
amount equal to the highest  termination  payment, if any, that would be payable
by such person upon termination for any reason on the date of termination),  and
(g) all  obligations  of such  person or of  others  for  which  such  person is
contingently liable, as guarantor,  surety or in any other similar capacity,  or
in respect of which  obligations  such person assures a creditor against loss or
agrees to take any action to prevent any such loss (other than  endorsements  of
negotiable  instruments  for  collection  in the ordinary  course of  business),
including  without  limitation all  reimbursement  obligations of such person in
respect of any letters of credit,  surety bonds or similar  obligations  and all
obligations of such person to advance funds to, or to purchase assets,  property
or services from, any other person in order to maintain the condition, financial
or otherwise, of such other person.

     "Interest  Payment  Date"  shall mean (a) with  respect to each  Eurodollar
Loan,  the last day of each  Eurodollar  Interest  Period  with  respect to such
Eurodollar  Loan and, in the case of any Eurodollar  Interest  Period  exceeding
three months, those days that occurred during such Eurodollar Interest Period at
intervals  of three  months  after  the first  day of such  Eurodollar  Interest
Period, (b) in all other cases, the last Business Day of each month,  commencing
with the first such day after the Effective Date, and (c) the  Termination  Date
with respect to Revolving Credit Loans, Maturity Date - Bridge Loan with respect
to the Bridge Loan and the  Maturity  Date - Term Loan with  respect to the Term
Loan.

     "Lending Installation" shall mean, with respect to a Bank or the Agent, any
office, branch, subsidiary or affiliate of such Bank or the Agent.

     "Letter of Credit"  shall mean a standby  letter of credit  having a stated
expiry date not later than  twelve  months  after the date of  issuance  and not
later than the fifth  Business Day before the  Termination  Date,  issued by the
Agent  on  behalf  of the  Banks  for the  account  of the  Borrowers  under  an
application and related documentation  acceptable to the Agent requiring,  among
other things,  immediate  reimbursement by the Borrowers to the Agent in respect
of all drafts or other demand for payment  honored  thereunder  and all expenses
paid or incurred by the Agent relative thereto.



CREDIT AGREEMENT                                                          Page 9





     "Letter of Credit  Advance"  shall mean any  issuance of a Letter of Credit
pursuant  to this  Agreement,  in which  each  Bank  acquires  a pro  rata  risk
participation.

     "Letter of Credit  Documents"  shall have the meaning  ascribed  thereto in
Section 3.3(b)(i).

     "Lien" shall mean any pledge, assignment, hypothecation, mortgage, security
interest,  deposit  arrangement,  option,  conditional  sale or title  retaining
contract,  sale and leaseback transaction,  financing statement filing, lessor's
or lessee's  interest under any lease,  subordination  of any claim or right, or
any other type of lien, charge,  encumbrance,  preferential arrangement or other
claim or right.

     "Loan  Documents"  shall  mean this  Agreement,  the  Notes,  the  Security
Documents, the environmental certificate and any other agreement,  instrument or
document  executed at any time  pursuant to, in  connection  with,  or otherwise
relating to this Agreement.

     "Loans" mean the Revolving Credit Loans, the Term Loan and the Bridge Loan.

     "Majority  Banks"  shall  mean  Banks  holding  not  less  than  66% of the
aggregate  principal  amount  of  the  Loans  then  outstanding  (or  66% of the
Commitments if no Loans are then outstanding).

     "Material Adverse Effect" shall mean a material adverse effect on or change
in (a) the business,  property  (including without limitation the Collateral and
further  including  without   limitation  the  Purchased  Black  Stone  Assets),
operations  or  condition,  financial or  otherwise,  of the  Borrowers  and the
Guarantors  on a  consolidated  basis,  (b) the  ability of any  Borrower or any
Guarantor to perform its obligations under any Loan Document or (c) the validity
or  enforceability or the rights and remedies of the Agent or any Bank under any
Loan Document.

     "Maturity Date - Bridge Loan" shall mean,  with respect to the Bridge Loan,
the  earlier  to occur of (a)  December  31,  1996 and (b) the date on which the
Bridge Loan shall be accelerated pursuant to Section 8.2.

     "Maturity Date - Term Loan" shall mean,  with respect to the Term Loan, the
earlier  to occur of (a) the  second  anniversary  of the date the Term  Loan is
made,  which in any event  shall be no later than the fifth  anniversary  of the
Effective  Date,  and (b) the date on which the Term Loan  shall be  accelerated
pursuant to Section 8.2.

     "Mortgages" shall have the meaning ascribed thereto in Section 5.1.

     "Multiemployer  Plan"  shall  mean any  "multiemployer  plan" as defined in
Section 4001(a)(3) of ERISA or Section 414(f) of the Code.


CREDIT AGREEMENT                                                         Page 10






     "1995  Preferred  Stock"  shall mean the  1,500,000  shares of Series  1995
Convertible Preferred Stock issued by CRI.

     "1994  Preferred  Stock"  shall  mean the  600,000  shares of  Series  1994
Convertible  Preferred  Stock  issued  by CRI and the  1,000,000  shares of 1994
Series B Convertible Preferred Stock issued by CRI.

     "Notes" means the Revolving Credit Notes and the Term Notes.

     "Oil and Gas  Interests"  shall mean all leasehold  interests,  mineral fee
interest,  overriding royalty and royalty interests, net revenue and net working
interest and all other rights and interests relating to Hydrocarbons,  including
without limitation any reserves thereof.

     "Overdue  Rate" shall mean (a) in respect of  principal  of  Floating  Rate
Loans, a rate per annum that is equal to the sum of three percent (3%) per annum
plus the Floating Rate, (b) in respect of principal of Eurodollar  Loans, a rate
per annum that is equal to the sum of three  percent (3%) per annum plus the per
annum  rate in  effect  thereon  until  the end of the then  current  Eurodollar
Interest Period for such Loan and, thereafter, a rate per annum that is equal to
the sum of three  percent  (3%) per annum  plus the  Floating  Rate,  and (c) in
respect of other amounts payable by the Company hereunder (other than interest),
a per annum rate that is equal to the sum of three  percent  (3%) per annum plus
the Floating Rate.

     "PBGC" shall mean the Pension Benefit  Guaranty  Corporation and any entity
succeeding to any or all of its functions under ERISA.

     "Permitted Liens" shall mean the Liens permitted by Section 7.2(e) hereof.

     "Person" shall include an  individual,  a corporation,  an  association,  a
partnership,  a trust  or  estate,  a joint  stock  company,  an  unincorporated
organization,  a joint  venture,  a government  (foreign or  domestic),  and any
agency or political subdivision thereof, or any other entity.

     "Plan"  shall mean,  with respect to any Person,  any  employee  benefit or
other plan (other than a Multiemployer  Plan)  maintained by such Person for its
employees  and covered by Title IV of ERISA or to which  Section 412 of the Code
applies.

     "Pro Rata Share" shall mean, as to obligations of the Banks, the percentage
set  forth  opposite  its  name  on the  signature  pages  hereof  or  otherwise
established  pursuant to Section  10.6.  As to  obligations  owing to the Banks,
shall mean:  (a) in the case of payments of principal and interest on the Loans,
in an amount  with  respect  to each Bank equal to the  product  of such  amount
received times the ratio which the outstanding  principal balance of its Note or
Notes bears to the outstanding  principal  balance of all Notes,  and (b) in the
case of all other amounts payable  hereunder (other than as otherwise noted with
respect to fees) and other


CREDIT AGREEMENT                                                         Page 11





amounts,  in an amount  with  respect to each Bank equal to the  product of such
amount  received  times the ratio which the Commitment of such Bank bears to the
Commitments of all Banks.

     "Proved Developed  Reserves" shall mean all Oil and Gas Interests which, to
the satisfaction of the Agent, are estimated,  with reasonable certainty, and as
demonstrated by geological and  engineering  data acceptable to the Agent, to be
economically  recoverable  from  existing  wells  requiring  no more than  minor
workover operations from existing  completion  intervals open for production and
which are producing, and have proven reserves of, Hydrocarbons.

     "Purchase Documents" shall mean all purchase agreements,  purchase and sale
agreements and other  agreements  and documents  between CRI and Black Stone and
certain  working  interest  owners  for the  purchase  by CRI of the  properties
described  therein,  together with all other agreements and documents  delivered
pursuant to Section 3.2(a)(xii).

     "Purchased  Black  Stone  Assets"  shall  mean  all oil and gas  interests,
capital  stock  and  other  assets  being  purchased  pursuant  to the  Purchase
Documents.

     "Reportable  Event" shall mean a  reportable  event as described in Section
4043(b) of ERISA  including  those events as to which the thirty (30) day notice
period is waived  under  Part 2615 of the  regulations  promulgated  by the PBGC
under ERISA.

     "Reserve  Requirement" means, with respect to a Eurodollar Interest Period,
the maximum aggregate reserve  requirement  (including all basic,  supplemental,
marginal and other reserves) which is imposed under Regulation D on Eurocurrency
liabilities.

     "Revolving  Credit  Advance"  shall mean any  Revolving  Credit Loan or any
Letter of Credit Advance.

     "Revolving  Credit Loan" means any loan under  Section 3.1 evidenced by the
Revolving Credit Notes and made pursuant to Section 2.1(a).

     "Revolving  Credit Note" shall mean any  promissory  note of the  Borrowers
evidencing the Revolving Credit Loans, in substantially  the form annexed hereto
as Exhibit C, as amended or  modified  from time to time and  together  with any
promissory note or notes issued in exchange or replacement therefor.

     "Security  Agreements"  shall have the meaning  ascribed thereto in Section
5.1.

     "Security  Documents"  shall have the meaning  ascribed  thereto in Section
5.1.

     "Subsidiary"  of any  person  shall  mean any  other  person  (whether  now
existing or hereafter  organized  or  acquired)  in which (other than  directors
qualifying shares required by


CREDIT AGREEMENT                                                         Page 12





law) at least a majority of the securities or other ownership  interests of each
class having  ordinary voting power or analogous right (other than securities or
other  ownership  interests which have such power or right only by reason of the
happening of a contingency),  at the time as of which any determination is being
made, are owned, beneficially and of record, by such person or by one or more of
the other  Subsidiaries  of such person or by any  combination  thereof.  Unless
otherwise specified, reference to "Subsidiary" shall mean a Subsidiary of CRI.

     "Subordinated  Debt" shall mean Indebtedness of CRI which satisfies each of
the following:

     (a) the aggregate principal amount thereof does not exceed $100,000,000;

     (b) the final maturity  thereof shall be no earlier than 10 years after its
issuance,  and there  shall be no  required  payments,  prepayments  (other than
required  prepayments  upon  a  change  of  control  and  upon a  disposal  of a
substantial amount of assets, in each case on terms and conditions acceptable to
the Majority Banks) or other defeasance thereof,  directly or indirectly,  prior
to such final maturity; and

     (c)  such  Indebtedness  shall  be  subordinated  to the  Bank  Obligations
pursuant to written subordination  provisions in form and substance satisfactory
to the Majority Banks.

     "Swap Agreement" shall mean any interest rate or oil and gas commodity swap
agreement,  interest  cap or collar  agreement or other  financial  agreement or
arrangement  designed to protect the  Borrowers or CNG against  fluctuations  in
interest rates or oil and gas prices.

     "Tangible  Net Worth" of any Person  shall  mean,  as of any date,  (a) the
amount of any capital stock or similar ownership liability plus (or minus in the
case of a deficit) the capital surplus and retained  earnings of such Person and
the amount of any foreign  currency  translation  adjustment  account shown as a
capital account of such Person,  less (b) the net book value of all items of the
following  character  which  are  included  in the  assets of such  Person:  (i)
goodwill,  including without  limitation,  the excess of cost over book value of
any asset,  (ii) organization or experimental  expenses,  (iii) unamortized debt
discount and expense, (iv) stock discount and expense, (v) patents,  trademarks,
trade names and  copyrights,  (vi)  treasury  stock,  (vii)  deferred  taxes and
deferred charges,  (viii) franchises,  licenses and permits,  and (ix) all other
assets  which are deemed  intangible  assets  under  GAAP;  provided,  that such
calculation  of  Tangible  Net Worth  under this  definition  shall not  include
receivables  of such Person which are owing by any Affiliate or advances by such
Person to any Affiliate.

     "Term Loan" means any  borrowing  under  Section 3.1  evidenced by the Term
Note and made pursuant to Section 2.1(b).



CREDIT AGREEMENT                                                         Page 13





     "Term Note" means any promissory note of the Borrowers  evidencing the Term
Loan,  in  substantially  the form  annexed  hereto as  Exhibit D, as amended or
modified from time to time and together with any promissory note or notes issued
in exchange or replacement therefor.

     "Termination  Date"  shall  mean the  earlier  to  occur  of (a) the  third
anniversary  of the  Effective  Date or such earlier date as the  Borrowers  may
elect, with five Business Days prior written notice to the Banks, to convert the
Revolving  Credit  Advances to the Term Loan under Section  2.1(b),  and (b) the
date on which the Commitments shall be terminated  pursuant to Section 2.1(a) or
8.2.

     "Total  Liabilities"  of  any  Person  shall  mean,  as of  any  date,  all
obligations  which,  in  accordance  with GAAP,  are or should be  classified as
liabilities on a balance sheet of such Person.

     "Type" shall mean,  with  respect to any Advance,  its nature as a Floating
Rate Loan, Eurodollar Loan or Letter of Credit Advance.

     1.2 Other  Definitions;  Rules of Construction.  As used herein,  the terms
"Agent," "Banks," "CRI", "COG", "COGL", "COE",  "Borrowers" and "this Agreement"
shall  have  the  respective  meanings  ascribed  thereto  in  the  introductory
paragraph of this Agreement.  Such terms,  together with the other terms defined
in Section 1.1, shall include both the singular and the plural forms thereof and
shall be construed  accordingly.  All  computations  required  hereunder and all
financial  terms used herein shall be made or construed in accordance  with GAAP
unless such principles are  inconsistent  with the express  requirements of this
Agreement.


     SECTION 2. The Commitments.

     2.1  Advances.  (a) Each Bank agrees,  for itself  only,  to advance and to
readvance,  subject  to the  terms  and  conditions  herein  set  forth,  to the
Borrowers at any time and from time to time from the Effective Date hereof until
the  Termination  Date  amounts  equal to such  Bank's  Pro  Rata  Share of such
aggregate  amounts as any Borrower may from time to time request,  provided that
no Revolving Credit Loans may be made if the aggregate outstanding amount of all
Revolving  Credit  Loans  to  all  Borrowers  would  exceed  the  lesser  of the
Commitments or the Borrowing  Base, and the aggregate  Letter of Credit Advances
may not exceed the lesser of $1,000,000 or the CNG/CRI  Guaranty  Formula.  Each
Loan made hereunder shall be evidenced by the Notes, which shall mature and bear
interest  as set forth in Section 4 hereof and in such Notes.  On the  Effective
Date, the Borrowers shall issue and deliver to each Bank a Revolving Credit Note
in the principal  amount of such Banks'  Commitment for the period  beginning on
the Effective  Date.  Each  Revolving  Credit Loan which is a Floating Rate Loan
shall be in a minimum  amount of $500,000 and in integral  multiples of $100,000
and each Revolving Credit Loan which is a Eurodollar Loan shall be in a minimum


CREDIT AGREEMENT                                                         Page 14





amount of $3,000,000  and in integral  multiples of  $1,000,000.  Subject to the
terms and  conditions  of this  Agreement,  the  Borrowers  may  borrow,  prepay
pursuant to Section 4.1(b) and reborrow under this Section 2.1(a). The Borrowers
shall have the right to terminate or reduce the Commitments at any time and from
time to  time,  provided  that  (i) the  Borrowers  shall  give  notice  of such
termination  or reduction to the Agent  specifying the amount and effective date
thereof,  (ii) each partial  reduction of the Commitments  shall be in a minimum
amount of $1,000,000  and in integral  multiples of $1,000,000  and shall reduce
the  Commitments  of all of the  Banks  proportionally  in  accordance  with the
respective  Commitment  amounts of each such Bank,  (iii) no such termination or
reduction,  either  in  whole  or part  and  including  without  limitation  any
termination,  shall be permitted with respect to any portion of the  Commitments
as to which a request for a Revolving Credit Advances is then pending,  and (iv)
the Commitments may not be terminated if any Revolving  Credit Advances are then
outstanding  and may not be  reduced  below the  principal  amount of  Revolving
Credit  Advances  then  outstanding,  for the benefit of Banks.  Notwithstanding
anything in this Agreement to the contrary, the Commitments shall be mandatorily
and automatically  reduced to an aggregate amount not to exceed  $110,000,000 or
such other greater amount agreed to in writing by the Majority  Banks,  upon the
issuance or other incurrence of any Subordinated  Debt, and such reduction shall
reduce the  Commitments of all the Banks  proportionally  in accordance with the
respected  Commitment  amounts of each such Bank. The Commitments or any portion
thereof so terminated or reduced may not be reinstated. Any Borrower may request
Revolving  Credit Advances  without the consent of any other Borrower,  and each
Borrower consents to and approves any Revolving Credit Advances requested by any
other Borrower.  The Revolving Credit Advances  hereunder  replace the revolving
credit  loans  outstanding  pursuant to Section  2.1(a) of the  Existing  Credit
Agreement and provide additional credit as described above.

          (b) Each Bank further  agrees,  for itself only,  subject to the terms
and  conditions  of this  Agreement  to make its Pro Rata Share of a single term
loan to the Borrowers on the Termination  Date, but not at any time  thereafter,
in an amount not to exceed the lesser of the amount of the Borrowing  Base as of
the  Termination  Date and the  aggregate  outstanding  principal  amount of the
Revolving Credit Advances.

          (c) Each Bank further  agrees,  for itself only,  subject to the terms
and conditions of this Agreement,  to make its Pro Rata Share of a single bridge
loan to the Borrowers on the Effective Date, but not at any time thereafter,  in
an  aggregate  amount not to exceed  $10,000,000.  This term loan  replaces  the
$10,000,000  term loan  outstanding  under the  Existing  Credit  Agreement  and
provides additional credit.

          (d)  Nothing  in this  Agreement  shall be  construed  to  require  or
authorize any Bank to issue any Letter of Credit,  it being  recognized that the
Agent has the sole obligation under this Agreement to issue Letters of Credit on
behalf of the Banks,  and the  Commitment of each Bank with respect to Letter of
Credit Advances is expressly  conditioned  upon the Agent's  performance of such
obligations.  Upon such  issuance  by the Agent,  each Bank shall  automatically
acquire a pro rata risk participation  interest in such Letter of Credit Advance
based


CREDIT AGREEMENT                                                         Page 15





on its respective  Commitment.  If the Agent shall honor a draft or other demand
for  payment  presented  or made  under any Letter of  Credit,  the Agent  shall
provide  notice thereof to each Bank on the date such draft or demand is honored
unless the Borrowers shall have satisfied their  reimbursement  obligation under
Section 3.3 by payment to the Agent on such date.  Each Bank, not later than the
Business  Day after the Agent  shall  have  given the  notice  specified  in the
previous sentence, shall make its pro rata share of the amount paid by the Agent
available in immediately  available  funds at the principal  office of the Agent
for the account of the Agent. If and to the extent such Bank shall not have made
any  required  pro rata  portion  available  to the Agent or made its portion of
Revolving Credit Loan available pursuant to Section 3.3(a)(i), such Bank and the
Borrowers  severally  agree to pay to the Agent  forthwith on demand such amount
together with interest thereon,  for each day from the date such amount was paid
by the Agent until such amount is so made available to the Agent at (i) the rate
per annum equal to the interest rate applicable to the related Loan disbursement
under  Section 3.3 for such day in the case of the Company and (ii) the rate per
annum equal to the Federal  Funds Rate for such day in the case of any Bank.  If
such Bank shall pay such amount to the Agent together with such  interest,  such
amount so paid shall  constitute a Revolving Credit Loan by such Bank as part of
the Revolving Credit Loans disbursed in respect of the reimbursement  obligation
of the Company under Section 3.3 for purposes of this Agreement.  The failure of
any Bank to make its pro rata  portion  of any  such  amount  paid by the  Agent
available  to the Agent shall not relieve  any other Bank of its  obligation  to
make  available  its pro  rata  portion  of such  amount,  but no Bank  shall be
responsible  for  failure  of any  other  Bank to make  such  pro  rata  portion
available to the Agent.


     SECTION 3. The Advances.

     3.1 Disbursement of Advances.  (a) Borrowers shall give notice to the Agent
of each requested Advance in substantially  the form of Exhibit E hereto,  which
notice  given shall be received by the Agent not later than 10:00 a.m.  (Chicago
time),  (i) three  Business  Days prior to the date such Loan is requested to be
made if such Loan is to be made as a  Eurodollar  Loan,  (ii) one  Business  Day
prior to the date such Loan is  requested  to be made if such Loan is to be made
as a Floating Rate Loan,  (iii) three Business Days prior to the date any Letter
of Credit  Advance is requested to be made, and (iv) five Business Days prior to
the date the Term Loan is requested to be made.  Each such notice given shall be
irrevocable  and binding on the  Borrowers,  any such  notice  must  specify the
Advance  Date,  which  shall be a Business  Day,  the  aggregate  amount of such
Advance,  the Type of Advance selected,  in the case of any Eurodollar Loan, the
Eurodollar Interest Period applicable thereto,  and in the case of any Letter of
Credit Advance such other information with respect thereto as may be required by
the Agent. The Agent shall provide notice of such requested Loan to each Bank on
the same Business Day such notice is received from the Borrowers. Subject to the
terms and conditions of this Agreement,  the Agent shall, on the date any Letter
of Credit Advance is requested to be made, issue the related Letter of Credit on
behalf of the Banks for the account of the Borrowers,  provided that in the case
of each Letter of Credit Advance the Borrowers  provide such  information as may
be


CREDIT AGREEMENT                                                         Page 16





necessary  for the  issuance  thereof by the Agent and execute  any  document in
connection therewith as may be requested by the Agent.  Notwithstanding anything
herein to the contrary,  the Agent may decline to issue any requested  Letter of
Credit on the basis that the  beneficiary,  the purpose of issuance or the terms
or conditions of drawing are illegal or contrary to a policy of the Agent.

          (b) Floating  Rate Loans shall  continue as Floating Rate Loans unless
and until such Floating Rate Loans are converted  into  Eurodollar  Loans.  Each
Eurodollar  Loan of any Type shall  continue as a  Eurodollar  Loan of such Type
until the end of the then  applicable  Interest Period  therefor,  at which time
such Eurodollar Loan shall be automatically  converted into a Floating Rate Loan
unless the Borrower shall have given the Agent a Conversion/Continuation  Notice
requesting that, at the end of such Interest Period, such Eurodollar Loan either
continue  as a  Eurodollar  Loan of such Type for the same or  another  Interest
Period or be  converted  into a Loan of  another  Type.  Subject to the terms of
Section 2.1, the Borrower may elect from time to time to convert all or any part
of a Loan of any Type into any other Type or Types of a Loan;  provided that any
conversion of any Eurodollar Loan shall be made on, and only on, the last day of
the Interest  Period  applicable  thereto.  The  Borrowers  shall give the Agent
irrevocable notice (a "Conversion/Continuation  Notice") of each conversion of a
Loan or  continuation  of a Eurodollar  Loan not later than 10:00 a.m.  (Chicago
time) at least one  Business  Day, in the case of a  conversion  into a Floating
Rate  Loan,  or  three  Business  Days,  in the  case  of a  conversion  into or
continuation of a Eurodollar Loan, prior to the date of the requested conversion
or continuation, specifying:

     (i)  the requested  date which shall be a Business Day, of such  conversion
          or continuation,

     (ii) the aggregate  amount and Type of the Loan which is to be converted or
          continued, and

     (iii)the  amount  and  Type(s)  of  Loan(s)  into  which such Loan is to be
          converted  or  continued  and,  in the  case of a  conversion  into or
          continuation of a Eurodollar Loan, the duration of the Interest Period
          applicable thereto.

          (c)  Subject  to the  terms  and  conditions  of this  Agreement,  the
proceeds of such  requested  Loan shall be made  available  to the  Borrowers by
depositing the proceeds thereof, in immediately  available funds, on the Advance
Date for such Loan in an account  maintained  and designated by the Borrowers at
the principal  office of the Agent.  Each Bank, on the Advance Date of each such
Loan  shall  make  its Pro Rata  Share of such  Loan  available  in  immediately
available  funds at the principal  office of the Agent for  disbursement  to the
Borrowers.  Unless the Agent shall have  received  notice from any Bank prior to
the date of any  requested  Loan under this  Section 3.1 that such Bank will not
make  available  to the Agent such Bank's Pro Rata  Share,  the Agent may assume
that such Bank has made such share available to


CREDIT AGREEMENT                                                         Page 17





the Agent on the  Advance  Date of such  Loan in  accordance  with this  Section
3.1(b).  If and to the  extent  such  Bank  shall not have so made such Pro Rata
Share available to the Agent, the Agent may (but shall not be obligated to) make
such amount  available to the Borrowers on the relevant  Advance Date,  and such
Bank agrees to pay to the Agent  forthwith on demand such amount  together  with
interest  thereon,  for each day from the date such amount is made  available to
the  Borrowers by the Agent until the date such amount is paid to the Agent,  at
the Federal  Funds Rate.  If such Bank shall pay to the Agent such amount,  such
amount so paid shall  constitute a Loan by such Bank as a part of such borrowing
for  purposes  of this  Agreement.  The failure of any Bank to make its Pro Rata
Share of any such Loan  available  to the Agent shall not relieve any other Bank
of its  obligations  to make  available  its Pro Rata  Share of such Loan on the
Advance Date of such Loan, but no Bank shall be  responsible  for failure of any
other Bank to make such Pro Rata  Share  available  to the Agent on the  Advance
Date of any such Loan.

          (d)  Notwithstanding  anything in this Agreement to the contrary,  the
Borrowers may not obtain a Eurodollar  Loan or convert any Floating Rate Loan to
a Eurodollar Loan if there is any amount outstanding under the Bridge Loan.

          (e) Each Bank may book its Loans at any Lending Installation  selected
by such Bank and may  change its  Lending  Installation  from time to time.  All
terms of this  Agreement  shall apply to any such Lending  Installation  and the
Notes  shall  be  deemed  held by each  Bank  for the  benefit  of such  Lending
Installation.  Each Bank may,  by written  or telex  notice to the Agent and the
Borrowers,  designate a Lending Installation through which Loans will be made by
it and for whose account Loan payments are to be made.

     3.2 Conditions of Advances.  The Banks and the Agent shall not be obligated
to make any Advance hereunder at any time unless:

          (a) Prior to or simultaneously with the first Advance hereunder, there
shall have been  delivered  to each Bank the  following  documents,  in form and
substance satisfactory to the Agent:

               (i) The  favorable  opinion of such counsel for the Borrowers and
each Guarantor,  as shall be approved by the Banks,  with respect to the matters
as requested by the Banks,  including  down-dated  title  opinions on 80% of the
value of the assets  acquired by the Borrowers  from Black Stone and opinions as
to such other  matters as the Banks shall  reasonably  request,  all in form and
substance satisfactory to the Majority Banks;

               (ii)  certified  copies  of  such  corporate  documents  of  each
Borrower and each  Guarantor,  including each  Borrower's  and each  Guarantor's
articles of  incorporation,  by-laws and a good standing  certificate,  and such
documents  evidencing necessary corporate action with respect to this Agreement,
the  Loans,  the  Notes  and  the  Security  Documents,  and  certifying  to the
incumbency of, and attesting to the genuineness of the


CREDIT AGREEMENT                                                         Page 18





signatures of, those  officers  authorized to act on behalf of each Borrower and
each Guarantor, as the Banks shall request;

               (iii) the Security  Documents  required as of the Effective  Date
under Section 5.1 duly  executed on behalf of the Borrowers and each  Guarantor,
together  with  evidence  of the  recordation,  filing and other  action in such
jurisdictions as the Banks may deem necessary or appropriate with respect to the
Security  Documents and evidence of the  first-priority  of the Banks' liens and
security  interests  under the  Security  Documents,  subject  only to Permitted
Liens,   including  without  limitation  such  additional  mortgages,   security
agreements,  pledge agreements, other documents and opinions of counsel required
by the Banks and original  stock  certificates  and  assignments  separate  from
certificate of each person whose stock is required to be pledged;

               (iv) the Notes duly executed on behalf of the  Borrowers,  and it
is  acknowledged  and agreed  that the Notes:  (A) are  issued in  exchange  and
replacement  for the  promissory  notes issued  pursuant to the Existing  Credit
Agreement,  (B)  shall  not be  deemed  a  novation  or to have  satisfied  such
promissory  notes  and (C)  evidence  the same  indebtedness  evidenced  by such
promissory notes plus additional indebtedness;

               (v) the Consent and Amendment of Security Documents duly executed
by the Borrowers and the Guarantors;

               (vi) Payment of such fees agreed to among the  Borrowers  and the
Agent;

               (vii) the execution by the  Borrowers  and each  Guarantor of the
Agent's standard environmental certificate;

               (viii) the Banks shall have  determined that the Loans to be made
are equal to or less than the Borrowing  Base, and such  determination  shall be
made by the Banks in their sole  discretion  and based upon their  evaluation of
the Borrowing Base;

               (ix)  copies  of  all   agreements   relating  to  any   material
Indebtedness  for borrowed  money,  any preferred  stock,  any joint ventures or
partnerships or any other material documents requested by the Banks;
 
               (x) the originals of all promissory notes payable to any Borrower
or any Guarantor,  other than promissory  notes in an aggregate amount less than
$50,000;

               (xi)   such   other   agreements,   documents,   conditions   and
certificates as reasonably requested by the Banks, including without limitation,
releases and terminations of all other Liens which are not permitted  hereunder,
assignment of the Purchase


CREDIT AGREEMENT                                                         Page 19





Documents,  amendments of existing Security Documents,  the establishment of all
primary bank  accounts of each  Borrower and each  Guarantor at a Bank (and each
agrees  to  maintain  such  accounts  at a  Bank),  all in  form  and  substance
satisfaction to the Banks;

               (xii) certified copies of all purchase  agreements,  purchase and
sale  agreements  and all  other  agreements  and  documents  executed  or to be
executed and delivered in connection  with the acquisition by CRI of certain oil
and gas  properties  and other  assets  from  Black  Stone and  certain  working
interest owners; and

               (xiii) evidence  satisfactory to the Majority Banks that, but for
the payment of a portion of the purchase  price to be paid by the initial  Loans
under this Agreement, the representations and warranties in the last sentence of
Section 6.12 are accurate.

          (b) The aggregate outstanding principal amount of all Revolving Credit
Loans or the Term Loan,  whichever is  outstanding,  after giving  effect to the
proposed  Loan,  does not exceed the lesser of the  Commitments or the Borrowing
Base,  and the aggregate  outstanding  principal  amount of all Letter of Credit
Advances, after giving effect to the proposed Letter of Credit Advance, does not
exceed the lesser of $1,000,000 or the CNG/CRI Guaranteed Formula.

          (c) On and as of the date of each such  Advance,  the  representations
and  warranties  contained  in Section 6 hereof shall be true and correct in all
material respects as if made on such date; provided,  however, that for purposes
of this Section 3.2(c) the representations  and warranties  contained in Section
6.7 hereof  shall be deemed made with respect to both the  financial  statements
referred to therein and the most recent financial  statements delivered pursuant
to Section 7.1(d)(ii) and (iii).

          (d) No  Default or event or  condition  which  could  cause a Material
Adverse   Effect  has  occurred  and  is  continuing  or  will  exist  upon  the
disbursement of such Advance.

Acceptance of the proceeds of any Advance  hereunder by the  Borrowers  shall be
deemed to be a  certification  by the Borrowers at such time with respect to the
matters set forth in subparagraphs (b), (c) and (d) of this Section 3.2.

     3.3 Letter of Credit Reimbursement Payments.  (a)(i) The Borrowers agree to
pay to the  Agent,  on the day on which the Agent  shall  honor a draft or other
demand for payment presented or made under any Letter of Credit, an amount equal
to the amount paid by the Agent in respect of such draft or other  demand  under
such Letter of Credit and all  expenses  paid or incurred by the Agent  relative
thereto.  Unless the Borrowers shall have made such payment to the Agent on such
day,  upon each such  payment  by the Agent,  the Agent  shall be deemed to have
disbursed to the Borrowers, and the Borrowers shall be deemed to have elected to
satisfy its reimbursement  obligation by borrowing,  a Revolving Credit Loan for
the account


CREDIT AGREEMENT                                                         Page 20





of the Banks in an amount equal to the amount so paid by the Agent in respect of
such draft or other demand under such Letter of Credit.  Such  Revolving  Credit
Loan shall be disbursed, and each Bank shall advance its Pro Rata Share thereof,
notwithstanding  any failure to satisfy any conditions for  disbursement  of any
Loan set forth in Section 3.2 or any other  condition  and, to the extent of the
Revolving  Credit  Loan  so  disbursed,  the  reimbursement  obligation  of  the
Borrowers under this Section 3.3 shall be deemed satisfied;  provided,  however,
that  such  disbursement  shall  not be  deemed  to be a waiver  of any Event of
Default or Default, if any.

               (ii) If for any reason (including  without limitation as a result
of the occurrence of an Event of Default with respect to the Borrowers or any of
its Subsidiaries  pursuant to Section 8.1(g),  Revolving Credit Loans may not be
made by the Banks as  described  in Section  3.3(a)(i),  then (A) the  Borrowers
agree that each reimbursement  amount not paid pursuant to the first sentence of
Section  3.3(a)(i)  shall bear interest,  payable on demand by the Agent, at the
interest rate then  applicable to Revolving  Credit Loans,  and (B) effective on
the date each such Revolving  Credit Loan would  otherwise have been made,  each
Bank severally agrees that it shall  unconditionally  and  irrevocably,  without
regard to the occurrence of any Default or Event of Default, in lieu of a deemed
disbursement  of Revolving  Credit Loans,  to the extent of such Bank's Pro Rata
Share, purchase a participating interest in each reimbursement amount. Each Bank
will  immediately  transfer to the Agent,  in same day funds,  the amount of its
participation.  Each  Bank  shall  share  on a pro  rata  basis  (calculated  by
reference to the Bank  Commitments) in any interest which accrues thereon and in
all  repayments  thereof.  If and to the extent  that any Bank shall not have so
made the amount of such participating interest available to the Agent, such Bank
and the  Borrowers  agree to pay to the Agent  forthwith  on demand  such amount
together  with  interest  thereon,  for each day from the date of  demand by the
Agent until the date such amount is paid to the Agent, at (x) in the case of the
Borrowers,  the interest  rate then  applicable  to Loans and (y) in the case of
such Bank, the Federal Funds Rate.

          (b) The reimbursement  obligations of the Borrowers under this Section
3.3 shall be absolute,  unconditional  and  irrevocable and shall remain in full
force and effect  until all  obligations  of the  Borrowers to the Agent and the
Banks hereunder shall have been satisfied, and such obligations of the Borrowers
shall not be  affected,  modified or impaired  upon the  happening of any event,
including without limitation,  any of the following,  whether or not with notice
to, or the consent of, the Borrowers:

               (i) Any lack of  validity  or  enforceability  of any  Letter  of
Credit  or  any  documentation  relating  to  any  Letter  of  Credit  or to any
transaction  related in any way to such Letter of Credit (the  "Letter of Credit
Documents");

               (ii) Any  amendment,  modification,  waiver  or  consent,  or any
substitution,  exchange  or release of or failure  to perfect  any  interest  in
collateral or security, with respect to any of the Letter of Credit Documents;



CREDIT AGREEMENT                                                         Page 21





               (iii) The existence of any claim, setoff,  defense or other right
which  the  Borrowers  may  have at any  time  against  any  beneficiary  or any
transferee of any Letter of Credit (or any persons or entities for whom any such
beneficiary or any such transferee may be acting) , the Agent or any Bank or any
other person or entity,  whether in connection  with any of the Letter of Credit
Documents,  the  transactions  contemplated  herein or therein or any  unrelated
transactions;

               (iv) Any draft or other statement or document presented under any
Letter of Credit proving to be forged,  fraudulent,  invalid or  insufficient in
any respect or any statement therein being untrue or inaccurate in any respect;

               (v) Payment by the Agent to the  beneficiary  under any Letter of
Credit against  presentation  of documents which do not comply with the terms of
the Letter of Credit,  including  failure of any documents to bear any reference
or adequate reference to such Letter of Credit;

               (vi)  Any  failure,  omission,  delay  or lack on the part of the
Agent or any Bank or any  party to any of the  Letter  of  Credit  Documents  to
enforce, assert or exercise any right, power or remedy conferred upon the Agent,
any Bank or any such party under this  Agreement  or any of the Letter of Credit
Documents,  or any other acts or omissions on the part of the Agent, any Bank or
any such party; or

               (vii) Any other event or circumstance  that would, in the absence
of this  clause,  result in the  release or  discharge  by  operation  of law or
otherwise of the Borrowers from the performance or observance of any obligation,
covenant or agreement contained in this Section 3.3.

No setoff,  counterclaim,  reduction  or  diminution  of any  obligation  or any
defense of any kind or nature  which the  Borrowers  has or may have against the
beneficiary  of any  Letter  of  Credit  shall  be  available  hereunder  to the
Borrowers against the Agent or any Bank. Nothing in this Section 3.3 shall limit
the  liability,  if any,  of the  Banks to the  Borrowers  pursuant  to  Section
10.5(c).

          (c) For  purposes of this  Agreement,  a Letter of Credit  Advance (i)
shall be deemed  outstanding in an amount equal to the sum of the maximum amount
available to be drawn under the related Letter of Credit on or after the date of
determination and on or before the stated expiry date thereof plus the amount of
any draws under such Letter of Credit that have not been  reimbursed as provided
in this  Section  3.3 and (ii) shall be deemed  outstanding  at all times on and
before  such  stated  expiry  date or such  earlier  date on which  all  amounts
available  to be drawn under such Letter of Credit  have been fully  drawn,  and
thereafter until all related  reimbursement  obligations have been paid pursuant
to Section 3.3. As provided in this  Section 3.3,  upon each payment made by the
Agent in respect of any draft or other  demand for  payment  under any Letter of
Credit, the amount of any Letter of Credit Advance


CREDIT AGREEMENT                                                         Page 22





outstanding  immediately prior to such payment shall be automatically reduced by
the amount of each  Revolving  Credit  Loan  deemed  advanced  in respect of the
related reimbursement obligation of the Borrowers.

          (d)  Each  Bank's  obligation  to  purchase  participating   interests
pursuant to Section 2.1(c) and this Section 3.3, and to comply with the terms of
Section  2.1(c) and this Section 3.3,  shall be absolute and  unconditional  and
shall not be affected by any circumstance,  including,  without limitation,  (i)
any set-off, counterclaim, recoupment, defense or other right which such Bank or
the Borrowers  may have against the Agent,  the Borrowers or anyone else for any
reason  whatsoever;  (ii) the occurrence or continuance of a Default or an Event
of Default;  (iii) any adverse change in the condition  (financial or otherwise)
of the  Borrowers;  (iv) any breach of this  Agreement  by the  Borrowers or any
other  Bank;  or (v) any  other  circumstance,  happening  or event  whatsoever,
whether or not similar to any of the foregoing.

     3.4.  Withholding  Tax Exemption.  At least five Business Days prior to the
first date on which  interest or fees are payable  hereunder  for the account of
any Bank, each Bank that is not incorporated under the laws of the United States
of  America,  or a state  thereof,  agrees  that it will  deliver to each of the
Borrowers  and the Agent two duly  completed  copies of United  States  Internal
Revenue  Service Form 1001 or 4224,  certifying in either case that such Bank is
entitled  to  receive  payments  under  this  Agreement  and the  Notes  without
deduction or withholding  of any United States  federal income taxes.  Each Bank
which so delivers a Form 1001 or 4224 further  undertakes  to deliver to each of
the Borrowers and the Agent two  additional  copies of such form (or a successor
form) on or before the date that such form expires (currently,  three successive
calendar  years for Form 1001 and one  calendar  year for Form  4224) or becomes
obsolete  or after the  occurrence  of any event  requiring a change in the most
recent forms so delivered by it, and such  amendments  thereto or  extensions or
renewals  thereof as may be reasonably  requested by the Borrowers or the Agent,
in each case  certifying  that such Bank is entitled to receive  payments  under
this  Agreement and the Notes  without  deduction or  withholding  of any United
States federal income taxes,  unless an event (including  without limitation any
change in treaty, law or regulation) has occurred prior to the date on which any
such  delivery  would  otherwise  be  required  which  renders  all  such  forms
inapplicable  or  which  would  prevent  such  Bank  from  duly  completing  and
delivering  any such form with respect to it and such Bank advises the Borrowers
and the Agent that it is not capable of receiving payments without any deduction
or withholding of United States federal income tax.



CREDIT AGREEMENT                                                         Page 23





     SECTION 4. Payment and Prepayment; Fees; Change in Circumstances.

     4.1 Principal Payments.

          (a) Unless  earlier  payment is  required  under this  Agreement,  the
Borrowers shall pay (i) the entire outstanding principal amount of the Revolving
Credit  Advances  on the  Termination  Date,  (ii) the Term Loan in  consecutive
quarterly installments each in an amount equal to 5% of the original outstanding
principal  amount of the Term Loan,  commencing with the date three months after
the Termination Date and each three months thereafter until the Maturity Date of
the Term Loan and shall pay the entire remaining outstanding principal amount of
the Term Loan on the Maturity Date - Term Loan and (iii) the entire  outstanding
principal amount of the Bridge Loan on the Maturity Date - Bridge Loan.

          (b) The Borrowers may from time to time prepay all or a portion of the
Advances without premium or penalty,  provided,  however, that (i) the Borrowers
shall have given not less than one Business  Day's prior written  notice thereof
to the Agent, (ii) other than mandatory payments,  each such prepayment,  in the
case of  prepayment of Floating  Rate Loans,  shall be in the minimum  amount of
$500,000 and in integral multiples of $100,000 and, in the case of prepayment of
Eurodollar Loans,  shall be in the minimum amount of $1,000,000 and in increment
integral multiples thereof, (iii) any prepayment of any Eurodollar Loan shall be
accompanied by any amount required pursuant to Section 4.10.

          (c) If it should be  determined by the Agent at any time and from time
to time that the principal  amount of the Revolving  Credit Advances or the Term
Loan, whichever is outstanding, exceeds the lesser of the then Borrowing Base or
the Commitments, the Borrowers shall promptly do one of the following:

               (i) In addition to all other  payments of principal  and interest
required  to be  paid on the  Revolving  Credit  Advances  and  the  Term  Loan,
whichever is  outstanding,  prepay,  upon demand and without premium or penalty,
the Revolving Credit Notes or the Term Notes,  whichever are outstanding,  in an
amount by which, in the  determination  of the Agent,  such aggregate  principal
amount  outstanding  exceeds  the  lesser  of the  then  Borrowing  Base  or the
Commitments; or

               (ii) Grant a lien and  security  interest  to the Agent,  for the
benefit of the Banks, in form and substance  satisfactory to the Majority Banks,
additional interests in Proved Developed Reserves of the Borrowers which, in the
determination  of the Majority  Banks,  will increase the  Borrowing  Base by an
amount such that the then  aggregate  principal  amount of the Revolving  Credit
Advances  does  not  exceed  the  lesser  of  the  then  Borrowing  Base  or the
Commitments; or

               (iii) Any combination of the foregoing acceptable to the Majority
Banks.


CREDIT AGREEMENT                                                         Page 24






          (d) In addition to all other payments required hereunder, if CRI shall
at any time issue or otherwise incur any Subordinated  Debt, the Borrowers shall
prepay the Advances by an amount equal to 100% of the net proceeds  (net only of
reasonable  and  customary  fees and costs of the issuance of such  Subordinated
Debt) of such Subordinated Debt, payable upon receipt of such proceeds, provided
that the amount of such proceeds shall be first applied to the Bridge Loan until
paid in full, and thereafter applied to the other outstanding Advances.

          (e) In  addition to all other  payments  of the Bridge  Loan  required
hereunder,  upon any sale or other disposition of any assets the Borrowers shall
prepay the Bridge Loan by an amount equal to 100% of the net proceeds  (net only
of reasonable  and customary  costs of such sale or other  disposition)  of such
sale or disposition which prepayment is due upon receipt of such net proceeds.

              All  determinations  made  pursuant to this  Section 4.1 shall be
made by the  Agent or the  Majority  Banks,  as the case  may be,  and  shall be
conclusively binding on the parties absent manifest error.

     4.2 Interest Payment.  (a) The Borrowers shall pay interest to the Banks on
the unpaid  principal amount of each Revolving Credit Loan and the Term Loan for
the period  commencing  on the date such Loan is made until such Loan is paid in
full, on each Interest Payment Date and at maturity (whether at stated maturity,
by acceleration or otherwise),  and thereafter on demand, at the following rates
per annum:  (i) during such periods that such Loan is a Floating Rate Loan,  the
Floating Rate, and (ii) during such periods that such Loan is a Eurodollar Loan,
the Eurodollar Rate applicable to such Loan for each related Eurodollar Interest
Period.

          (b) The  Borrowers  shall  pay  interest  to the  Banks on the  unpaid
principal amount of the Bridge Loan, for the period  commencing on the date such
Bridge  Loan is made  until the  Bridge  Loan is paid in full,  and at  maturity
(whether at stated  maturity,  by acceleration or otherwise),  and thereafter on
demand, at the Floating Rate.

          (c)  Notwithstanding  the  foregoing   paragraphs  (a)  and  (b),  the
Borrowers  hereby agree,  if requested by the Majority Banks, to pay interest on
demand at the Overdue Rate on the outstanding  principal  amount of any Loan and
any other amount payable by the Borrowers  hereunder  (other than interest) upon
and during the continuance of any Default.

     4.3 Fees.  (a) The  Borrowers  agree to pay to the Agent,  for the pro rata
account of the Banks,  a commitment  fee computed at the per annum rate equal to
the  Applicable  Margin  on the  amount  by which  the  Commitments  exceed  the
aggregate  outstanding  principal  amount of the Revolving Credit Loans, for the
period from the Effective Date until the Termination  Date,  which fees shall be
paid quarterly, on the last day of each March, June,


CREDIT AGREEMENT                                                         Page 25





September  and December  commencing  on the first such date after the  Effective
Date, and on the Termination Date.

          (b) The  Borrowers  agree (i) to pay to the Agent,  for the benefit of
the Banks, a fee equal to 1-1/2% per annum of the maximum amount available to be
drawn  under  each  Letter  of Credit at the time such fee is to be paid for the
period from and  including  the date of issuance of such Letter of Credit to and
including  the stated  expiry date of such Letter of Credit,  provided  that the
amount  payable  for any  quarter  under this  clause (i) shall be not less than
$500,  and  (ii) to pay an  additional  fee to the  Agent  for  its own  account
computed at the rate of one-quarter of one percent (1/4 of 1%) per annum of such
maximum amount for such period. Such fees shall be payable quarterly in advance,
payable on the date of the issuance of any Letter of Credit and each three month
interval thereafter.  Such fees are nonrefundable and the Borrowers shall not be
entitled to any rebate of any portion  thereof if such Letter of Credit does not
remain  outstanding  through  the date for which such fees have been  paid.  The
Borrowers  further agree to pay to the Agent,  on demand,  such other  customary
administrative  fees,  charges  and  expenses  of the  Agent in  respect  of the
issuance,  negotiation,  acceptance,  amendment,  transfer  and  payment of each
Letter of Credit or otherwise  payable  pursuant to the  application and related
documentation under which such Letter of Credit is issued.

          (c) The Borrowers  agree to pay to the Agent agency and servicing fees
for its  services  under this  Agreement  in such amounts as it may from time to
time be agreed upon  between  the  Borrowers  and the Agent,  which fee shall be
retained solely by the Agent.

     4.4 Payment Method. All payments to be made by the Borrowers hereunder will
be made in  Dollars  and in  immediately  available  funds  to the  Agent at its
address set forth in Section 10.2 not later than 11:00 a.m.  Chicago time on the
date on which such payment shall become due.  Payments received after 11:00 a.m.
Chicago  time shall be deemed to be  payments  made prior to 11:00 a.m.  Chicago
time on the next  succeeding  Business  Day.  At the time of  making  each  such
payment,  the  Borrowers  shall  specify  to the Agent  that  obligation  of the
Borrowers  hereunder  to which such  payment is to be applied,  or, in the event
that the  Borrowers  fails to so specify  or if an Event of  Default  shall have
occurred  and be  continuing,  the  Agent  may  apply  such  payments  as it may
determine in its sole  discretion.  On the day such payments are  received,  the
Agent  shall  remit  to the  Banks  their  respective  Pro Rata  Shares  of such
payments, in immediately available funds.

     4.5 No Setoff or  Deduction.  All  payments of principal of and interest on
the Advances and other amounts payable by the Borrowers  hereunder shall be made
by the  Borrowers  without  setoff or  counterclaim,  and free and clear of, and
without  deduction or  withholding  for, or on account of, any present or future
taxes, levies, imposts, duties, fees, assessments,  or other charges of whatever
nature, imposed by any governmental authority,  or by any department,  agency or
other political subdivision or taxing authority.



CREDIT AGREEMENT                                                         Page 26





     4.6 Payment on Non-Business Day; Payment Computations.  Except as otherwise
provided  in  this  Agreement  to the  contrary,  whenever  any  installment  of
principal  of, or interest on, any Advances  outstanding  hereunder or any other
amount due  hereunder,  becomes due and payable on a day which is not a Business
Day, the maturity thereof shall be extended to the next succeeding  Business Day
and, in the case of any  installment  of  principal,  interest  shall be payable
thereon  at the rate per annum  determined  in  accordance  with this  Agreement
during such extension. Computations of interest and other amounts due under this
Agreement shall be made on the basis of a year of 360 days for the actual number
of days  elapsed,  including  the  first day but  excluding  the last day of the
relevant period.

     4.7. Yield Protection. If any law or any governmental or quasi-governmental
rule,  regulation,  policy,  guideline or  directive  (whether or not having the
force of law),  or any  interpretation  thereof,  or the  compliance of any Bank
therewith,

     (i)  subjects any Bank or any applicable  Lending  Installation to any tax,
          duty, charge or withholding on or from payments due from the Borrowers
          (excluding  federal  taxation of the overall net income of any Bank or
          applicable Lending Installation),  or changes the basis of taxation of
          payments  to any Bank in respect of its Loans or other  amounts due it
          hereunder, or

     (ii) imposes or increases  or deems  applicable  any  reserve,  assessment,
          insurance  charge,  special  deposit  or similar  requirement  against
          assets of, deposits with or for the account of, or credit extended by,
          any Bank or any applicable Lending  Installation  (other than reserves
          and  assessments  taken into account in determining  the interest rate
          applicable to Eurodollar Loans), or

     (iii)imposes any other  condition  the result of which is to  increase  the
          cost to any Bank or any  applicable  Lending  Installation  of making,
          funding or maintaining  loans or reduces any amount  receivable by any
          Bank or any applicable Lending  Installation in connection with loans,
          or requires any Bank or any applicable  Lending  Installation  to make
          any payment  calculated  by  reference  to the amount of loans held or
          interest received by it, by an amount deemed material by such Bank,

then,  within 30 days of demand by such Bank, the Borrowers  shall pay such Bank
that  portion of such  increased  expense  incurred  or  reduction  in an amount
received  which such Bank  determines  is  attributable  to making,  funding and
maintaining its Loans and its Commitment.

     4.8.  Changes in Capital  Adequacy  Regulations.  If a Bank  determines the
amount of capital  required  or  expected  to be  maintained  by such Bank,  any
Lending  Installation of such Bank or any corporation  controlling  such Bank is
increased as a result of a Change,


CREDIT AGREEMENT                                                         Page 27





then,  within 15 days of demand by such Bank, the Borrowers  shall pay such Bank
the amount  necessary to  compensate  for any shortfall in the rate of return on
the portion of such increased capital which such Bank determines is attributable
to this Agreement,  its Loans or its obligation to make Loans  hereunder  (after
taking into account such Bank's policies as to capital adequacy). "Change" means
(i) any  change  after  the date of this  Agreement  in the  Risk-Based  Capital
Guidelines or (ii) any adoption of or change in any other law,  governmental  or
quasi-governmental  rule,  regulation,  policy,  guideline,  interpretation,  or
directive  (whether  or not  having  the  force of law)  after  the date of this
Agreement  which  affects  the  amount of capital  required  or  expected  to be
maintained  by  any  Bank  or  any  Lending   Installation  or  any  corporation
controlling any Bank.  "Risk-Based  Capital Guidelines" means (i) the risk-based
capital guidelines in effect in the United States on the date of this Agreement,
including  transition  rules,  and (ii) the  corresponding  capital  regulations
promulgated by regulatory authorities outside the United States implementing the
July 1988 report of the Basle  Committee on Banking  Regulation and  Supervisory
Practices  Entitled  "International  Convergence  of  Capital  Measurements  and
Capital  Standards,"  including  transition  rules,  and any  amendments to such
regulations adopted prior to the date of this Agreement.

     4.9.  Availability  of  Types of  Advances.  If any  Bank  determines  that
maintenance of its Eurodollar  Loans at a suitable  Lending  Installation  would
violate any  applicable  law,  rule,  regulation,  or directive,  whether or not
having the force of law, or if the Majority Banks determine that (i) deposits of
a type and maturity appropriate to match fund Eurodollar Loans are not available
or (ii) the interest rate  applicable  to a Type of Advance does not  accurately
reflect the cost of making or  maintaining  such  Advance,  then the Agent shall
suspend  the  availability  of the  affected  Type of Advance  and  require  any
Eurodollar Loans of the affected Type to be repaid.

     4.10. Funding  Indemnification.  If any payment of a Eurodollar Loan occurs
on a date which is not the last day of the applicable  Interest Period,  whether
because of  acceleration,  prepayment or otherwise,  or a Eurodollar Loan is not
made on the date specified by the Borrowers for any reason other than default by
the Banks,  the Borrowers will indemnify each Bank for any loss or cost incurred
by it resulting therefrom,  including,  without limitation,  any loss or cost in
liquidating  or employing  deposits  acquired to fund or maintain the Eurodollar
Loan.

     4.11.  Bank  Statements;  Survival of Indemnity.  To the extent  reasonably
possible,  each Bank shall  designate an  alternate  Lending  Installation  with
respect to its Eurodollar Loans to reduce any liability of the Borrowers to such
Bank  under  Sections  4.7 and 4.8 or to avoid the  unavailability  of a Type of
Advance under Section 3.3, so long as such designation is not disadvantageous to
such  Bank.  Each Bank  shall  deliver a written  statement  of such Bank to the
Borrowers  (with  a copy to the  Agent)  as to the  amount  due,  if any,  under
Sections 4.7, 4.8 or 4.10. Such written  statement shall set forth in reasonable
detail the calculations upon which such Bank determined such amount and shall be
final, conclusive and binding on the Borrowers in the absence of manifest error.
Determination of amounts payable under such Sections in


CREDIT AGREEMENT                                                         Page 28





connection with a Eurodollar Loan shall be calculated as though each Bank funded
its  Eurodollar  Loan through the purchase of a deposit of the type and maturity
corresponding  to the deposit used as a reference in determining  the Eurodollar
Rate  applicable to such Loan,  whether in fact that is the case or not.  Unless
otherwise  provided herein, the amount specified in the written statement of any
Bank shall be payable on demand after  receipt by the  Borrowers of such written
statement.  The  obligations  of the Borrowers  under Sections 4.7, 4.8 and 4.10
shall survive payment of the Bank Obligations and termination of this Agreement.


     SECTION 5. Security.

     5.1 Security  Documents.  To secure amounts due under this  Agreement,  the
Notes, and to secure all other  Indebtedness and obligations of the Borrowers to
the Agent and the Banks, whether direct or indirect, absolute or contingent, due
or to become due, now existing or hereafter  arising,  the Borrowers  shall, and
shall cause each Guarantor to:

          (a) Execute and deliver to the Agent, on or before the Effective Date,
such  indentures of mortgage,  deeds of trust,  security  agreements,  financing
statements and assignment of production and other agreements,  including without
limitation  any  amendments  to  any  such  documents  previously  executed  and
delivered in favor of the Agent or any Bank (as amended or modified from time to
time, the "Mortgages" and together with the Security Agreements,  the Guaranties
and all agreements and documents described in this Section 5.1(a) and in 5.1(b),
5.2 and 5.3 and all other agreements and documents  securing or guaranteeing any
of the Bank  obligations  at any time or  otherwise  executed by any Borrower or
Guarantor  with or in favor of the Agent and the Banks,  and  including  without
limitation the Letter of Credit  Documents,  as amended or modified from time to
time,  the  "Security  Documents"),  in form and substance  satisfactory  to the
Majority  Banks,   granting  the  Agent,   for  the  benefit  of  the  Banks,  a
first-priority,  perfected and enforceable lien and security  interest,  subject
only to the  Permitted  Liens,  in the following  (collectively,  with all other
assets described in Section 5.1(b), the "Collateral"):  all oil, gas and mineral
properties and all other assets of the Borrowers and each  Guarantor,  including
without  limitation all leasehold and royalty  interests and all other rights in
connection  therewith,  and all  interests in machinery,  equipment,  materials,
improvements,  hereditaments,  appurtenances and other property,  real, personal
and/or  mixed,  now or hereafter a part of or obtained in or used in  connection
with such  properties and all interests in and to any and all oil, gas and other
minerals now in storage or now or hereafter  located in,  under,  on or produced
from,  such  properties and an assignment of production  from such properties to
the Agent;

          (b) Execute and deliver to the Agent, on or before the Effective Date,
such security  agreements,  pledge  agreement,  financing  statements  and other
agreements,  including without  limitation the Consent and Amendment of Security
Documents  confirming the continuing  effectiveness  of previously  executed and
delivered  to the Agent or any Bank (as amended or  modified  from time to time,
the "Security Agreements"), in form and substance


CREDIT AGREEMENT                                                         Page 29





satisfactory  to the Majority Banks,  granting to the Agent,  for the benefit of
the Banks,  a first-  priority,  perfected  and  enforceable  lien and  security
interest,  subject only to the Permitted  Liens,  in all other  assets,  whether
real,  personal  or mixed,  and  whether  now owned or  hereafter  existing  and
wherever located, of the Borrowers and each Guarantor;  provided,  however, that
the  Borrowers and the  Guarantors  shall not be required to grant a lien on, or
security  interest in, the assets  described on Schedule 5.1 for so long as they
are  contractually  prohibited from doing so, and each of the Borrowers and each
of the Guarantors represent that they are contractually prohibited from granting
liens on, or security  interest  in, the assets  described  on Schedule  5.1 and
agree not to enter into any further restrictions with respect thereto.

     5.2 Guaranty. To confirm its guarantee of all indebtedness, obligations and
liabilities of the Borrowers owing to the Banks, whether under this Agreement or
otherwise,  the Borrowers  shall cause each Guarantor to deliver the Consent and
Amendment of Security Documents  confirming the continuing  effectiveness of the
guaranty agreements  previously executed by each Guarantor (the "Guaranties") in
favor of the Agent or Banks, in form and substance  satisfactory to the Majority
Banks.

     5.3 Additional Security Documents. If at any time requested by the Agent or
the Majority  Banks,  the Borrowers  shall,  and shall cause each  Guarantor to,
execute and deliver such additional documents, and shall take such other action,
as the Agent or the Majority Banks may reasonably  consider  necessary or proper
to evidence or perfect the liens and security interests described in Section 5.1
hereof and grant the guaranties  described in Section 5.2. Immediately after the
acquisition is completed pursuant to the Purchase Documents, the Borrowers agree
that they  shall  cause  Black  Stone to  execute a  Guaranty  and all  Security
Documents in order to grant a lien and security  interest in all assets of Black
Stone,  and COG shall execute such  documents to grant a first lien and security
interest on all capital  stock of Black  Stone,  together  with  delivery to the
Agent of the  original  of all  stock  certificates  pledged  thereby  and other
documents in  connection  therewith  requested by the Agent,  including  without
limitation all board resolutions, officer certificates and legal opinions.


     SECTION 6. Representations and Warranties.

     Each of the  Borrowers  and each of the  Guarantors  represent  and warrant
that:

     6.1 Corporate  Existence and Power.  It is a  corporation  duly  organized,
validly  existing and in good standing under the laws of the jurisdiction of its
incorporation, and is duly qualified to do business and in good standing in each
additional  jurisdiction  where  failure  to so  qualify  would  have a Material
Adverse Effect.  It has all requisite  corporate power to own its properties and
to carry on its business as now being conducted and as proposed to be conducted,
and to execute and deliver this Agreement,  the Notes and the Security Documents
and to engage in the transactions  contemplated by this Agreement, the Notes and
the Security Documents.



CREDIT AGREEMENT                                                         Page 30





     6.2 Corporate Authority.  The execution,  delivery and performance by it of
this  Agreement,  the Notes and the Security  Documents are within its corporate
powers,  have been duly authorized by all necessary corporate action and are not
in contravention of any law, rule or regulation, or any judgment,  decree, writ,
injunction,  order or award of any arbitrator,  court or governmental authority,
or of the terms of its charter or by-laws,  or of any contract or undertaking to
which it is a party or by which it or its property may be bound or affected.

     6.3  Binding  Effect.  This  Agreement  is, and the Notes and the  Security
Documents to which it is a party when delivered  hereunder will be, legal, valid
and binding obligations of each Borrower and each Guarantor, enforceable against
each in accordance with their respective terms.

     6.4  Subsidiaries.  All  Subsidiaries  of CRI are duly  organized,  validly
existing  and in  good  standing  under  the  laws  of  their  jurisdictions  of
incorporation and are duly qualified to do business in each  jurisdiction  where
failure to so qualify  would have a Material  Adverse  Effect.  All  outstanding
shares of capital  stock of each class of each  Subsidiary  of CRI have been and
will be validly issued and are and will be fully paid and  nonassessable and are
and will be owned,  beneficially  and of record,  by CRI,  free and clear of any
Liens.  Schedule 6.4 is a complete list of all Subsidiaries of CRI. Each of COG,
COE, CMC (provided that  notwithstanding  anything  herein to the contrary it is
acknowledged  and agreed that CMC may be dissolved or  liquidated  if all of its
assets are  transferred to a Borrower) and CNG is and will remain a wholly-owned
Subsidiary  of CRI,  COGL is and will remain a  wholly-owned  Subsidiary of COG,
after completion of the acquisition of the Purchase Documents,  Black Stone will
be wholly-owned  subsidiary of COG and will remain a wholly-owned  subsidiary of
COG, and CPI is and, without the prior written consent of the Agent, will remain
a wholly-owned Subsidiary of CNG.

     6.5 Liens.  The properties of each Borrower and each  Guarantor  (including
without  limitation the Collateral) are not subject to any Lien except Permitted
Liens.

     6.6 Litigation.  There is no action,  suit or proceeding pending or, to the
best of its  knowledge,  threatened  against  or  affecting  it before or by any
court, governmental authority, or arbitrator which would be reasonably likely to
result in, either  individually or collectively,  a Material Adverse Effect and,
to the best of the Borrowers' knowledge,  there is no basis for any such action,
suit or proceeding.

     6.7  Financial  Condition.  The  consolidated  balance sheet of CRI and its
Subsidiaries and the consolidated  statements of income and cash flow of CRI and
its  Subsidiaries for the fiscal year ended December 31, 1995 and reported on by
Arthur  Andersen,  LLP, copies of which have been furnished to the Bank,  fairly
present,  and  the  financial  statements  of CRI  and  its  Subsidiaries  to be
delivered  pursuant  to Section  7.1(d) will fairly  present,  the  consolidated
financial  position of CRI and its Subsidiaries and is at their respective dates
thereof,  and the consolidated results of operations of CRI and its Subsidiaries
for their respective periods


CREDIT AGREEMENT                                                         Page 31





indicated,  all in accordance  with  generally  accepted  accounting  principles
consistently  applied.  There has been no event or development  which has had or
would be reasonably  likely to have a Material Adverse Effect since December 31,
1995.  There  is  no  material  Contingent  Liability  of  CRI  or  any  of  its
Subsidiaries that is not reflected in such financial  statements or in the notes
thereto.

     6.8 Use of  Advance.  Neither any  Borrower  nor any  Guarantor  extends or
maintains, in the ordinary course of business,  credit for the purpose,  whether
immediate,  incidental,  or ultimate, of buying or carrying margin stock (within
the meaning of  Regulation U of the Board of  Governors  of the Federal  Reserve
System),  and no  part of the  proceeds  of each  Advance  will be used  for the
purpose, whether immediate,  incidental,  or ultimate, of buying or carrying any
such margin stock or maintaining or extending credit to others for such purpose.
After  applying  the  proceeds  of the  Advances,  such  margin  stock  will not
constitute  more than 25% of the value of the  assets  that are  subject  to any
provisions  of this  Agreement  or any  Security  Document  that may  cause  the
Advances to be secured, directly or indirectly by margin stock.

     6.9  Security  Documents.   The  Security  Documents  create  a  valid  and
enforceable first-priority lien on and perfected security interest in all right,
title and interest of each Borrower and each  Guarantor in and to the Collateral
described  therein,   securing  all  amounts  intended  to  be  secured  thereby
(including  without  limitation  all  principal  of and  interest  on the Notes)
subject only to the Permitted  Liens.  The respective  net revenue  interests of
each  Borrower in and to the Oil and Gas  Interests as set forth in the Security
Documents  are true and correct and  accurately  reflect the  interests to which
each Borrower is legally entitled, subject only to the Permitted Liens.

     6.10  Consents,   Etc.  No  consent,   approval  or   authorization  of  or
declaration,  registration  or filing  with any  governmental  authority  or any
nongovernmental  person or entity,  including without limitation any creditor or
stockholder  of it,  is  required  on the  part  of it in  connection  with  the
execution,  delivery and performance of this Agreement,  the Notes, the Security
Documents  or the  transactions  contemplated  hereby or as a  condition  to the
legality,  validity or enforceability of this Agreement, the Notes or any of the
Security Documents.

     6.11  Taxes.  It has  filed all tax  returns  (federal,  state  and  local)
required to be filed and has paid all taxes shown  thereon to be due,  including
interest and penalties,  or has established adequate financial reserves on their
respective books and records for payment thereof, except where the failure to do
so would not have a Material Adverse Effect.

     6.12 Title to Properties.  It has good and defensible title to, and a valid
indefeasible ownership interest in, all of its properties and assets (including,
without  limitation,  the Collateral subject to the Security Documents) free and
clear of any Lien  except the  Permitted  Liens,  and it is the owner of all the
Collateral described in the Security Documents to which it is a party. All wells
on any of the mortgaged premises have been drilled, operated, shut-in,


CREDIT AGREEMENT                                                         Page 32





abandoned or suspended in accordance  with good oil and gas field  practices and
in compliance with all applicable laws,  permits,  statutes,  orders,  licenses,
rules and  regulations.  All leases  with  respect to any Oil and Gas  Interests
owned by the  Borrowers or any  Guarantor  are in good  standing and are in full
force and effect, all royalties,  rents,  taxes,  assessments and other payments
thereunder  or with respect  thereto have been  properly and timely paid and all
conditions  necessary  to  keep  such  leases  in full  force  have  been  fully
performed,  including  without  limitation any condition to maintain  continuous
production or other activity with respect thereto. All transactions contemplated
pursuant  to the  Purchase  Documents  have been  completed,  including  without
limitation the  acquisition by COG of the Purchased  Black Stone Assets and have
been completed in accordance  with all applicable  laws and  regulations and COG
owns the Purchased Black Stone Assets free and clear of all Liens other than the
first priority, perfected and enforceable lien and security interest in favor of
the Agent for the benefit of the Banks.

     6.13 ERISA.  CRI and its  Subsidiaries and their Plans are in compliance in
all material  respects with those  provisions of ERISA and of the Code which are
applicable  with respect to any Plan. No prohibited  transaction  (as defined in
Section 406 of ERISA and Section 9975 of the Code) and no  reportable  event (as
defined in ERISA) has occurred with respect to any Plan. Neither CRI, any of its
Subsidiaries  nor any of its ERISA Affiliates is an employer with respect to any
multiemployer  plan (as  defined  in Section  4001(a)(3)  of  ERISA).  CRI,  its
Subsidiaries and the ERISA Affiliates have met the minimum funding  requirements
under ERISA and the Code with respect to each of the respective  Plans,  if any,
and  have not  incurred  any  liability  to the  PBGC or any  Plan.  There is no
unfunded benefit liability with respect to any Plan.

     6.14 Environmental and Safety Matters.  It is in compliance in all material
respects  with all federal,  state and local laws,  ordinances  and  regulations
relating to safety and  industrial  hygiene or to the  environmental  condition,
including without limitation all Environmental Laws in jurisdictions in which it
owns any  interest in or operates,  a well, a facility or site,  or arranges for
disposal or treatment of hazardous  substances,  solid waste,  or other  wastes,
accepts for transporting any hazardous substances, solid waste, or other wastes,
or holds any  interest in real  property  or  otherwise,  except  where any such
noncompliance  would not have a  Material  Adverse  Effect.  No  demand,  claim,
notice, suit, suit in equity, action,  administrative  action,  investigation or
inquiry whether brought by any governmental authority,  private person or entity
or otherwise, arising under, relating to or in connection with any Environmental
Laws is pending or its best of any Borrower's  knowledge  threatened against it,
any real  property  in which  it  holds or has held an  interest  or any past or
present  operation  of  it.  It (a)  does  not  know  of any  federal  or  state
investigation  evaluating  whether any remedial action is needed to respond to a
release of any toxic  substances,  radioactive  materials,  hazardous  wastes or
related  materials into the environment,  (b) has not received any notice of any
toxic substances,  radioactive  materials,  hazardous waste or related materials
in, or upon any of its  properties in violation of any  Environmental  Laws, and
(c) does not know of any basis for any such investigation,  notice or violation.
No material release, threatened release or disposal of


CREDIT AGREEMENT                                                         Page 33





hazardous  waste,  solid waste or other  wastes is occurring or has occurred on,
under or to any real  property in which it holds any interest or performs any of
its  operations,  in  violation  of any  Environmental  Law which  would  have a
Material Adverse Effect.

     6.15 Direct  Benefit.  The initial  Advances  hereunder and all  additional
Advances are for the direct benefit of each of the Borrowers and the Guarantors,
and the initial Advances hereunder are used to acquire the Purchased Black Stone
Assets and to refinance and replace indebtedness owing,  directly or indirectly,
by the  Borrowers  and the  Guarantor  to the Banks  under the  Existing  Credit
Agreement.  The Borrowers and the Guarantors are engaged as an integrated  group
in the business of oil and gas exploration and related fields,  and any benefits
to any Borrower or any  Guarantor is a benefit to all of them,  both directly or
indirectly,  inasmuch as the successful operation and condition of the Borrowers
and the Guarantors is dependent upon the continued successful performance of the
functions of the integrated group as a whole.

     6.16  Solvency.  Each of the  following is true for each  Borrower and each
Guarantor and the Borrowers and the Guarantors on a consolidated  basis: (a) the
fair saleable  value of its property is (i) greater than the total amount of its
liabilities (including contingent liabilities), and (ii) greater than the amount
that would be  required  to pay its  probable  aggregate  liability  on its then
existing  debts as they become  absolute  and  matured;  (b) its property is not
unreasonable  in relation  to its  business or any  contemplated  or  undertaken
transaction; and (c) it does not intend to incur, or believe that it will incur,
debts beyond its ability to pay such debts as they become due.

     6.17  Disclosure.  This  Agreement and all other  documents,  certificates,
reports or statements or other information furnished to any Bank or the Agent in
writing by or on behalf of any Borrower in connection  with the  negotiation  or
administration  of this Agreement or any transactions  contemplated  hereby when
read together do not contain any untrue  statement of a material fact or omit to
state a material fact necessary in order to make the statements contained herein
and therein not  misleading.  There is no fact known to any  Borrower  which has
caused,  or which likely would in the future in the  reasonable  judgment of the
Borrowers,  cause a Material Adverse Effect (except for any economic  conditions
which  affect   generally   the  industry  in  which  the  Borrowers  and  their
Subsidiaries  conduct business),  which has not been set forth in this Agreement
or  in  the  other  documents,  certificates,   statements,  reports  and  other
information furnished in writing to the Banks by or on behalf of any Borrower in
connection with the transactions contemplated hereby.


     SECTION 7. Covenants.

     7.1 Affirmative  Covenants.  Each Borrower covenants and agrees that, until
the  Termination  Date and  expiration  of all Letters of Credit and  thereafter
until the payment in full of the principal of and accrued  interest on the Notes
and the performance of all other


CREDIT AGREEMENT                                                         Page 34





obligations of the Borrowers  under this  Agreement,  the Notes and the Security
Documents, unless the Majority Banks shall otherwise consent in writing, each of
the Borrowers and each of the Guarantors shall:

          (a) Preservation of Corporate  Existence,  Etc.  Preserve and maintain
its  corporate  existence,  rights and  privileges  and its  material  licenses,
franchises and permits,  and qualify and remain  qualified as a validly existing
corporation in good standing in each jurisdiction in which such qualification is
necessary under applicable law.

          (b) Compliance with Laws,  Etc.  Comply in all material  respects with
all  applicable  laws,  rules,   regulations  and  orders  of  any  governmental
authority,   whether  federal,   state,  local  or  foreign  (including  without
limitation ERISA, the Code and Environmental Laws), in effect from time to time;
and pay and discharge promptly when due all taxes,  assessments and governmental
charges or levies  imposed  upon it or upon its income,  revenues  or  property,
before the same shall  become  delinquent  or in default,  as well as all lawful
claims for labor,  materials and supplies or otherwise,  which, if unpaid, might
give rise to Liens upon such  properties or any portion  thereof,  except to the
extent that  payment of any of the  foregoing  is then being  contested  in good
faith by  appropriate  legal  proceedings  and with  respect  to which  adequate
financial reserves have been established on its books and records.

          (c)  Maintenance  of  Properties;  Insurance.  Maintain,  preserve and
protect all  property  that is material to the conduct of its  business and keep
such property in good repair,  working order and condition and from time to time
make, or cause to be made all needful and proper repairs,  renewals,  additions,
improvements  and  replacements  thereto  necessary  in order that the  business
carried on in  connection  therewith  may be properly  conducted at all times in
accordance with customary and prudent business practices for similar businesses;
comply with all applicable permits,  statutes, laws, orders, licenses, rules and
regulations  relating to the Oil and Gas  Interests  owned by it, unless any non
compliance would not cause a Material Adverse Effect,  and ensure that all wells
and other properties operated by it, either in its own name or as a partner, are
operated in accordance with good oil and gas field practices; comply with all of
its duties and obligations  under, and take all actions to maintain,  consistent
with  prudent oil and gas  practices,  all leases and other rights in full force
and  effect;  and, in addition to that  insurance  required  under the  Security
Documents,  maintain in full force and effect  insurance  with  responsible  and
reputable insurance companies or associations in such amounts, on such terms and
covering such risks,  including fire and other risks insured against by extended
coverage,  as is usually carried by companies engaged in similar  businesses and
owning  similar  properties  similarly  situated  and maintain in full force and
effect public liability insurance,  insurance against claims for personal injury
or death or property  damage  occurring in connection with any of its activities
or any of any properties owned,  occupied or controlled by it, in such amount as
it shall reasonably deem necessary,  and maintain such other insurance as may be
required by law or as may be  reasonably  requested by the Banks for purposes of
assuring compliance with this Section 7.1(c).



CREDIT AGREEMENT                                                         Page 35





          (d)  Reporting  Requirements.  Furnish to each Bank,  in form and sub-
stance satisfactory to the Majority Banks, the following:

               (i)  Promptly and in any event within three  calendar  days after
                    becoming aware of the occurrence of (A) any Default, (B) the
                    commencement  of  any  material  litigation  against,  by or
                    affecting the Borrowers  and, upon request by any Bank,  any
                    material developments therein, or (C) any development in the
                    business or affairs of the Borrowers  which has resulted in,
                    or  which  is  likely  in  the  reasonable  judgment  of the
                    Borrowers to result in  (including  without  limitation  the
                    entering into of any material contract and/or undertaking by
                    the  Borrowers)  a  Material   Adverse  Effect  or  (D)  any
                    "reportable  event"  (as  defined  in ERISA)  under,  or the
                    institution  of steps by the Borrowers or any  Subsidiary to
                    withdraw from, or the institution of any steps to terminate,
                    any Plan, a statement of the chief financial  officer of the
                    Borrowers  setting  forth  details  of such  Default or such
                    event or condition or such  litigation  and the action which
                    CRI or any  Subsidiary  has taken and  proposes to take with
                    respect thereto;

               (ii) As soon as  available  and in any event within 45 days after
                    the end of each  fiscal  quarter  of CRI,  the  consolidated
                    balance sheets of CRI and its  Subsidiaries as of the end of
                    such  quarter,  and the related  consolidated  statements of
                    income and cash flow for the period commencing at the end of
                    the  previous  fiscal  year and ending  with the end of such
                    quarter,  setting forth in each case in comparative form the
                    corresponding  figures for the corresponding  date or period
                    of the preceding  fiscal year, all in reasonable  detail and
                    duly certified (subject to year-end audit adjustments) by an
                    appropriate officer of the Borrowers as having been prepared
                    in accordance with generally accepted accounting principles,
                    together with a certificate of an appropriate officer of the
                    Borrowers   with  a   computation   in   reasonable   detail
                    calculating the covenants contained in Sections 7.2(a), (b),
                    (c), (i), (j) and (l) hereof;

               (iii)As soon as available  and in any event within 120 days after
                    the  end of each  fiscal  year,  a copy of the  consolidated
                    balance  sheet of CRI and its  Subsidiaries  for the  fiscal
                    year and related  statements  of income and cash flow with a
                    customary  audit  report  thereon by Arthur  Andersen LLP or
                    other independent  certified public accountants  selected by
                    CRI and  acceptable  to the  Banks,  without  qualifications
                    unacceptable  to the Banks  together with a  certificate  of
                    such  accountants  stating  that  they  have  reviewed  this
                    Agreement and stating further that in making their review in
                    accordance  with generally  accepted  accounting  principles
                    nothing came to their  attention that made them believe that
                    any Default  exists,  or if their  examination has disclosed
                    the existence of any Default,  specifying the nature, period
                    of existence and status thereof, together with a certificate
                    of  an   appropriate   officer  of  the  Borrowers   with  a
                    computation


CREDIT AGREEMENT                                                         Page 36





                    in reasonable detail  calculating the covenants  contained
                    in Sections 7.2(a), (b), (c), (i), (j) and (l) hereof;

               (iv) Upon the  request  of the  Majority  Banks or the  Agent,  a
                    schedule  of all oil,  gas,  and  other  mineral  production
                    attributable  to all  material  Oil and Gas  Interest of the
                    Borrowers and each Guarantor,  and in any event all such Oil
                    and Gas Interests included in the Borrowing Base;

               (v)  Promptly,  all title or other information received after the
                    Effective  Date  by the  Borrowers  or any  Guarantor  which
                    discloses  any material  defect in the title to any material
                    asset included in the Borrowing Base;

               (vi) As soon as practicable and in any event within 30 days after
                    the sending or filing thereof,  copies of all such financial
                    statements  and  reports  as it shall  send to its  security
                    holders and of all final  prospectuses  under the Securities
                    Act of 1933  (other  than Form S-8),  reports on Forms 10-Q,
                    10-K and 8-K and all similar  regular and  periodic  reports
                    filed  by  it  (i)  with  any  federal  department,  bureau,
                    commission  or agency from time to time having  jurisdiction
                    with  respect  to the sale of  securities  or (ii)  with any
                    securities exchange;

               (vii)As soon as available  and in any event within 105 days after
                    the end of each calendar year, an annual reserve report with
                    respect to all Hydrocarbon reserves of the Borrowers and the
                    Guarantors  prepared by an independent  engineering  firm of
                    recognized  standing  acceptable  to the  Majority  Banks in
                    accordance  with accepted  industry  practices and otherwise
                    acceptable  and in form and  substance  satisfactory  to the
                    Majority Banks, and including without  limitation all assets
                    included in the Borrowing Base;

               (viii) Upon the request of the Banks,  an updated  reserve report
                    with respect to all  Hydrocarbon  reserves of the  Borrowers
                    and the  Guarantors  prepared by the Borrowers in accordance
                    with accepted  industry  practices and otherwise  acceptable
                    and in  form  and  substance  satisfactory  to the  Majority
                    Banks, and including without  limitation all assets included
                    in the Borrowing Base;

               (ix) Promptly,  any  management  letter from the auditors for any
                    Borrower and all other information  respecting the business,
                    properties  or the  condition  or  operations,  financial or
                    otherwise,  including,  without  limitation,  geological and
                    engineering  data of any Borrower or any  Guarantor  and any
                    title work with respect to any Oil and Gas  Interests of any
                    Borrowers or any Guarantor as any Bank may from time to time
                    reasonably request;

               (x)  At all times  after  the date  ninety  (90)  days  after the
                    Effective Date, if requested by the Majority Banks,  provide
                    title opinions and


CREDIT AGREEMENT                                                        Page 37





                    other  opinions  of  counsel,  in  each  case  in  form  and
                    substance  acceptable to the Majority Banks, with respect to
                    at least  eighty  (80%)  percent  of the value of the assets
                    included in the Borrowing Base; and

               (xi) As soon as  available  and in any event within 45 days after
                    the end of each month,  (A) the  balance  sheet of CNG as of
                    the end of each month, and the related  statements of income
                    for the period  commencing at the end of the previous fiscal
                    year and ending with the end of such month, setting forth in
                    each case in comparative form the corresponding  figures for
                    the  corresponding  date or period of the  preceding  fiscal
                    year, all in reasonable  detail and duly certified  (subject
                    to year-end audit adjustments) by an appropriate  officer of
                    CNG as having been  prepared in  accordance  with  generally
                    accepted accounting  principles,  (B) a schedule of accounts
                    receivable of CNG,  certified by an  appropriate  officer of
                    CNG, as of the end of such month,  indicating  the totals of
                    accounts  receivable  by type,  and by age,  describing  any
                    returns, defenses, setoffs or other pertinent information in
                    connection  therewith,  together with evidence of letters of
                    credit supporting Eligible CNG Accounts Receivable,  and (C)
                    a computation,  certified by an appropriate  officer of CNG,
                    of the CNG/CRI Guaranty Formula as of the end of such month.

               (e) Access to Records,  Books,  Etc. At any  reasonable  time and
from time to time, permit any Bank or any agents or representatives  thereof, at
the Borrowers' own expense, to examine and make copies of and abstracts from the
records and books of account of, and visit the  properties of, the Borrowers and
the  Guarantors,  and to discuss  the  affairs,  finances  and  accounts  of the
Borrowers  and the  Guarantors  with their  respective  officers and  employees.
Without limiting the foregoing,  the Borrowers and the Guarantors agree that any
reasonable time and from time to time, the Borrowers will permit any Bank or any
agents or representatives thereof to inspect, at the office of the Borrowers and
the Guarantors listed on its signature page hereto, all opinions with respect to
title and other material work received by the Borrowers or the  Guarantors  with
respect to any asset included in the Borrowing Base.

     7.2  Negative  Covenants.  Until  payment in full of the  principal  of and
accrued  interest on the Notes, the expiration of this Agreement and all Letters
of Credit  and the  payment  and  performance  of all other  obligations  of the
Borrowers and each Guarantor  under this  Agreement,  the Notes and the Security
Documents,  each  Borrower and each  Guarantor  agree that,  unless the Majority
Banks shall otherwise consent in writing, none of them shall:

               (a) Current  Ratio.  Permit or suffer the ratio of (i) the sum of
Current Assets plus the unused  availability under the revolving credit facility
established  by Section  2.1(a),  to (ii) Current  Liabilities at any time to be
less than 1.0 to 1.0.

               (b) Tangible Net Worth.  Permit or suffer  Consolidated  Tangible
Net Worth of CRI and its  Subsidiaries  to be less than, at any time, the sum of
(i) $25,000,000, plus


CREDIT AGREEMENT                                                        Page 38





                         (ii)  50% of  Consolidated  Net  Income  of CRI and its
                    Subsidiaries for any fiscal year, commencing with the fiscal
                    year ending  December  31,  1996,  and to be added as of the
                    last day of each such  fiscal  year,  provided  that if such
                    Consolidated  Net Income is  negative in any fiscal year the
                    amount added  pursuant to this clause (ii) shall be zero and
                    shall not reduce the amount  added  pursuant  to this clause
                    (ii) for any  other  fiscal  year,  plus (iv) 75% of the net
                    cash proceeds of any equity offering or other sale of equity
                    of CRI or any of its Subsidiaries.

               (c) Interest Coverage Ratio. Permit or suffer, as of the last day
of any fiscal quarter of CRI, the ratio of (i)  Consolidated  Adjusted Cash Flow
plus, to the extent  deducted in  determining  such  Consolidated  Adjusted Cash
Flow, Consolidated Interest Expense and income taxes, as calculated for the four
fiscal  quarters  then  ending,  to  (ii)  Consolidated   Interest  Expense,  as
calculated for the four fiscal quarters then ending,  to be less than (A) 2.5 to
1.0 as of the  last  day of any  fiscal  quarter  ending  prior  to the  initial
issuance of any  Subordinated  Debt of at least  $75,000,000 in principal amount
and (B) 2.0 to 1.0 as of the last day of any fiscal quarter thereafter.

               (d)  Indebtedness.  Create,  incur,  assume,  guaranty  or in any
manner become liable in respect of, or suffer to exist, any  Indebtedness  other
than:

                    (i) The Advances;

                    (ii) The  Indebtedness  described in Schedule 7.2(d) hereto,
                         including any  refinancing or extension  thereof but no
                         increase in the amount thereof shall be permitted;

                    (iii)Other Indebtedness in aggregate  outstanding amount not
                         to exceed $1,000,000;

                    (iv) Unsecured  insurance premium financing  incurred in the
                         ordinary course of business;

                    (v)  Indebtedness  pursuant to any Swap  Agreement  with any
                         Bank,  any person with an investment  grade debt rating
                         acceptable to the Agent and any other person acceptable
                         to the Agent;

                    (vi) Indebtedness permitted pursuant to Section 7.2(i); and

                    (vii)Subordinated  Debt in aggregate  outstanding  principal
                         amount not to exceed $100,000,000.

               (e) Liens. Create, incur or suffer to exist, any Lien to exist on
any assets, rights,  revenues or property,  real, personal or mixed, tangible or
intangible, other than:



CREDIT AGREEMENT                                                        Page 39





                                    (i) Liens for  taxes not  delinquent  or for
                  taxes being contested in good faith by appropriate proceedings
                  and  as  to  which  adequate   financial  reserves  have  been
                  established on its books and records;

                         (ii) Liens (other than any Lien imposed by
                  ERISA)  created  and  maintained  in the  ordinary  course  of
                  business  which are not material in the  aggregate,  and which
                  would not have a Material  Adverse Effect and which constitute
                  (A)  pledges or deposits  under  worker's  compensation  laws,
                  unemployment  insurance laws or similar legislation,  (B) good
                  faith deposits in connection with bids, tenders,  contracts or
                  leases to which any Borrower or any Guarantor is a party for a
                  purpose  other  than  borrowing  money  or  obtaining  credit,
                  including  rent security  deposits,  (C) liens imposed by law,
                  such  as  those  of  carriers,  warehousemen,   operators  and
                  mechanics, if payment of the obligation secured thereby is not
                  yet  due,  (D)  Liens  securing  taxes,  assessments  or other
                  governmental  charges or levies not yet  subject to  penalties
                  for  nonpayment,  and (E) pledges or deposits to secure public
                  or statutory obligations of any Borrower or any Guarantor,  or
                  surety, customs or appeal bonds to which such Borrower or such
                  Guarantor is a party;

                         (iii)Liens  created pursuant to the Security  Documents
                  and Liens expressly permitted by the Security Documents;

                         (iv) Each Lien described on Schedule  7.2(e) hereto may
                  be suffered  to exist upon the same terms as those  existing
                  on the  date  hereof,  but no  increase  in  the  amount  of
                  Indebtedness secured thereby; and

                         (v) Liens securing  Indebtedness  permitted pursuant to
                    Section  7.2(d)(iii)  created to secure payment of a portion
                    of the  purchase  price  of,  or  existing  at the  time  of
                    acquisition  of, any  tangible  fixed asset  acquired by any
                    Borrower  or  any  Guarantor  if the  outstanding  principal
                    amount of the Indebtedness  secured by such Lien does not at
                    any time exceed the purchase  price paid by such Borrower or
                    such Guarantor for such assets, provided that such Lien does
                    not  encumber  any  other  asset at any  time  owned by such
                    Borrower or such Guarantor.

               (f) Merger;  Acquisitions;  Etc.  Purchase or otherwise  acquire,
whether in one or a series of  transactions,  unless the  Majority  Banks  shall
otherwise  consent in writing,  all or any  substantial  portion of the business
assets,  rights,  revenues or  property,  real,  personal or mixed,  tangible or
intangible,  of any  person,  or all or any  substantial  portion of the capital
stock  of or  other  ownership  interest  in any  other  person,  provided  that
Borrowers may make such purchases or other acquisitions provided that the Bridge
Loan has been fully paid and the  aggregate  amount paid or payable or otherwise
transferred  for all such  purchases or other  acquisitions  after the Effective
Date shall not exceed $20,000,000 (excluding the Purchased


CREDIT AGREEMENT                                                        Page 40





Black  Stone  Assets)  in  aggregate  amount in any  fiscal  year;  nor merge or
consolidate or amalgamate  with any other person or take any other action having
a similar effect,  nor enter into any joint venture or similar  arrangement with
any  other  person,  other  than a  joint  venture  or  similar  arrangement  in
connection with oil and gas drilling ventures,  oil and gas leases,  natural gas
transportation  or  processing  or  otherwise  in  connection  with  oil and gas
properties in the ordinary  course of business.  Each of the Banks  acknowledges
and agrees that it has previously  provided  consent to each acquisition by each
Borrower and each Guarantor prior to the Effective Date pursuant to the terms of
the Existing Credit Agreement.

               (g) Disposition of Assets; Etc. Without the prior written consent
of the Majority  Banks,  sell,  lease,  license,  transfer,  assign or otherwise
dispose of any Collateral or any of its other business, assets, rights, revenues
or property, real, personal or mixed, tangible or intangible,  whether in one or
a series of  transactions,  other than (i) inventory sold in the ordinary course
of business upon customary credit terms, and (ii) if no Default has occurred and
is continuing or would be caused thereby, other sales of assets in (A) aggregate
amount not to exceed  $1,000,000  in any twelve month  period and (B)  aggregate
amount  exceeding  $1,000,000  in any  twelve  month  period  provided  that  in
connection  with any such sale all the  proceeds  thereof are used to prepay the
Advances and reduce the Commitments by a like amount.

               (h) Nature of Business. Make any substantial change in the nature
of its business from that engaged in on the date of this  Agreement or engage in
any other businesses other than those in which it is engaged on the date of this
Agreement.

               (i) Investments,  Advance and Advances,  Contingent  Liabilities.
Purchase or otherwise  acquire any capital stock of or other ownership  interest
in, or debt  securities  of or other  evidences  of  Indebtedness  of, any other
person; nor make any loan or advance of any of its funds or property or make any
other  extension  of credit to, or make any  investment  or acquire any interest
whatsoever  in, any other  person,  except (i) loans and advances to officers of
the Borrowers, provided that the aggregate amount of all such loans and advances
does not exceed $5,000,  (ii) loans and advances among the Borrowers only, (iii)
other loans and advances,  provided that the aggregate  amount of all such loans
and advances,  together  with  Indebtedness  allowed under Section  7.2(d)(iii),
shall not  exceed  $1,000,000  and (iv) loans and  advances  by CRI to CNG in an
aggregate amount not to exceed  $5,000,000,  the proceeds of which shall be used
in  connection  with the purchase of pipeline and  marketing  operations  and to
provide  ongoing  working  capital  for such  entity;  nor incur any  Contingent
Liability  except for any guaranty of the  permitted  Indebtedness  described in
Section  7.2(d)(i),  guarantees by CRI of obligations of CNG to purchase natural
gas in an aggregate  amount  outstanding at any time not to exceed the lesser of
(A)  $2,000,000  minus the  aggregate  outstanding  Letters of Credit or (B) the
CNG/CRI Guaranty Formula minus the aggregate  outstanding  Letters of Credit and
(v) the indebtedness described on Schedule 7.2(i), if any.



CREDIT AGREEMENT                                                        Page 41





               (j) Dividends.  With respect to CRI only,  make, pay,  declare or
authorize any dividend, payment or other distribution in respect of any class of
its capital stock or any dividend,  payment or  distribution  in connection with
the  redemption,   repurchase,   defeasance,  conversion,  retirement  or  other
acquisition,  directly or indirectly, of any shares of its capital stock, except
(i) solely in shares of capital stock of CRI and (ii) cash  dividends in respect
of 1994 Preferred Stock only in aggregate amount not to exceed $1,174,000 in any
twelve  month  period and only if both before the payment of such cash  dividend
and after giving effect to the payment of such cash dividend no Default or Event
of Default shall have occurred and be continuing  and the Bridge Loan shall have
been paid in full and (iii) cash  dividends  in  respect  to the 1995  Preferred
Stock only in an aggregate  amount not to exceed  $1,372,500 in any twelve month
period and only if both before the  payment of such  dividend  and after  giving
effect to the payment of such  dividend to no Default or Event of Default  shall
have  occurred  and be  continuing  and the Bridge  Loan shall have been paid in
full. For purposes of this Section 7.2(j), "capital stock" shall include capital
stock  (preferred,  common  or other)  and any  securities  exchangeable  for or
convertible  into capital  stock and any  warrants,  rights or other  options to
purchase or otherwise acquire capital stock or such securities.

               (k) Transactions with Affiliates. Enter into or be a party to any
transaction or arrangement with any Affiliate  (including,  without  limitation,
the purchase from, sale to or exchange of property with, or the rendering of any
service by or for, any Affiliate), except in the ordinary course of and pursuant
to the reasonable requirements of the Borrowers' or the Guarantors' business and
upon  fair and  reasonable  terms no less  favorable  to such  Borrower  or such
Guarantor than would be obtained in a comparable arms-length  transaction with a
Person  other than an Affiliate  and except the loans and advances  described in
Section 7.2(i).

               (l) Subordinated Debt. Make, or permit any Subsidiary to make any
amendment  or  modification  to  the  indenture,  note  or  other  agreement  or
instrument  evidencing or governing any Subordinated Debt, other than amendments
which  do not  affect  any of the  material  terms of the  Subordinated  Debt as
determined by the Agent and which require only the approval of the trustee under
the indenture  under which the  Subordinated  Debt was issued and do not require
the approval of any holder of the  Subordinated  Debt, or directly or indirectly
voluntarily prepay, defease or in substance defease, purchase, redeem, retire or
otherwise acquire or make any other optional payment on, any Subordinated  Debt,
other than prepayments of Subordinated  Debt which satisfy both of the following
conditions:  (i) both prior to and after  giving  effect to such  prepayment  no
Default  exists or would be caused  thereby and (ii) such  prepayment  is solely
from  proceeds  received by CRI from the issuance of common stock of CRI or from
proceeds  received by CRI from the issuance of Subordinated Debt permitted under
this Agreement.

               (m) Payments and Modification of Debt. Other than Indebtedness to
the Banks and the Agent pursuant hereto and prepayments of Subordinated  Debt to
the extent permitted by Section 7.2(l),  make, or permit any Subsidiary to make,
any optional payment,


CREDIT AGREEMENT                                                        Page 42





prepayment or redemption,  directly or indirectly, of any of its Indebtedness or
enter into any agreement or arrangement providing for the defeasance of any such
Indebtedness,  or amend or  modify,  or  consent  or agree to any  amendment  or
modification of, any instrument or agreement under which any of its Indebtedness
is issued or created or otherwise  related  thereto,  provided that this Section
7.2(m)  shall not  prohibit  the  prepayment  of such  Indebtedness  (other than
Subordinated  Debt which is governed by Section  7.2(l)) if no Default exists or
would exist after giving effect to such  prepayment and the aggregate  amount of
all such  prepayments  since the  Effective  Date does not exceed  $2,000,000 in
aggregate amount.

               (n) Additional Covenants. If at any time any Borrower shall enter
into  or  be a  party  to  any  instrument  or  agreement,  including  all  such
instruments  or  agreements  in  existence  as of the date  hereof  and all such
instruments  or  agreements  entered into after the date hereof,  relating to or
amending any terms or  conditions  applicable to any of its  Indebtedness  which
includes covenants, terms, conditions or defaults not substantially provided for
in this  Agreement or more  favorable to the lender or lenders  thereunder  than
those  provided for in this  Agreement,  then the  Borrowers  shall  promptly so
advise the Agent and the Banks.  Thereupon,  if the Agent  shall  request,  upon
notice to the Borrowers,  the Agents and the Banks shall enter into an amendment
to this  Agreement  or an  additional  agreement  (as the  Agent  may  request),
providing for substantially the same covenants,  terms,  conditions and defaults
as those provided for in such instrument or agreement to the extent required and
as may be selected by the Agents.  In addition to the foregoing,  any covenants,
terms,  conditions  or defaults in any existing  agreements  or other  documents
evidencing  or relating to any  Indebtedness  of any Borrower not  substantially
provided  for in  this  Agreement  or  more  favorable  to the  holders  of such
Indebtedness,  are hereby  incorporated  by reference into this Agreement to the
same extent as if set forth fully herein, and no subsequent amendment, waiver or
modification  thereof  shall effect any such  covenants,  terms,  conditions  or
defaults as incorporated herein.


                  SECTION 8.        Default.

                  8.1  Events  of  Default.  The  occurrence  of any  one of the
following events or conditions  shall be deemed an "Event of Default"  hereunder
unless waived by the Majority Banks pursuant to Section 10.1:

               (a) Any Borrower shall fail to pay within 2 Business Days of when
due any  principal  of or  interest  on the Notes  (whether  pursuant to Section
4.1(a),  Section  4.1(c) or  otherwise),  any fees or any other  amount  payable
hereunder or under any Security Document; or

               (b) Any  representation  or warranty made by any Borrowers or any
Guarantor in Section 6 hereof, in any Security Document or any other document or
certificate  furnished  by or on  behalf of any  Borrower  or any  Guarantor  in
connection  with  this  Agreement,  shall  prove to have been  incorrect  in any
material respect when made; or


CREDIT AGREEMENT                                                        Page 43






               (c) (i) Any  Borrower or any  Guarantor  shall fail to perform or
observe any term,  covenant or agreement  contained in Sections  7.1(b),  7.1(c)
(other than the agreement to maintain continuous  insurance  coverage),  7.1(d),
7.2(a),  7.2(b), 7.2(c) or 7.2(l) hereof or in any Security Document,  any other
Loan Document or any other agreement among the Borrowers,  Guarantors, the Banks
and the Agent,  or any of them, and such failure shall remain  unremedied for 30
calendar days after the earlier of the date notice thereof shall have been given
to Borrowers by the Agent or any Bank or any Borrower knows of such failure,  or
(ii) any  Borrower or any  Guarantor  shall fail to perform or observe any other
term, covenant, or agreement contained in this Agreement; or

               (d) Any Borrower or any  Guarantor  shall fail to pay any part of
the principal of, the premium,  if any, or the interest on, or any other payment
of money due under any of its Indebtedness (other than Indebtedness  hereunder),
beyond any period of grace provided with respect thereto,  which individually or
together with other such Indebtedness as to which any such failure exists has an
aggregate  outstanding  principal  amount  in excess  of  $1,000,000;  or if any
Borrower or any Guarantor  fails to perform or observe any other term,  covenant
or agreement  contained in any agreement,  document or instrument  evidencing or
securing any such Indebtedness,  or under which any such Indebtedness was issued
or created, beyond any period of grace, if any, provided with respect thereto if
the effect of such failure is either (i) to cause, or permit the holders of such
Indebtedness  (or a trustee on behalf of such holders) to cause,  any payment in
respect  of such  Indebtedness  to  become  due prior to its due date or (ii) to
permit the holders of such  Indebtedness (or a trustee on behalf of such holder)
to elect a majority of the board of directors of any Borrower or any  Guarantor;
or

               (e) A judgment or order for the payment of money,  which together
with other such judgments or orders exceeds the aggregate  amount of $1,000,000,
shall  be  rendered  against  any  Borrower  or any  Guarantor  and  either  (i)
enforcement  proceedings  shall have been  commenced by any  creditor  upon such
judgment or order and such judgment or order shall have remained unsatisfied and
such  proceedings  shall have remained  unstayed for a period of 30  consecutive
days, or (ii) for a period of 30 consecutive  days, such judgment or order shall
have  remained  unsatisfied  and a stay of  enforcement  thereof,  by  reason of
pending appeal or otherwise, shall not have been in effect; or

               (f) The  occurrence or existence  with respect to any Borrower or
any Guarantor or any of their ERISA Affiliates of any of the following:  (i) any
"prohibited  transaction" (as defined in Section 406 of ERISA or Section 4975 of
the Code) involving any Plan, (ii) any Reportable event shall occur with respect
to any Plan, (iii) the filing under ERISA of a notice of intent to terminate any
Plan or the termination of any Plan, (iv) any event or circumstance exists which
might constitute grounds entitling the PBGC to institute proceedings under ERISA
for the termination of, or the appointment of a trustee to administer, any Plan,
or the  institution  of the PBGC of any such  proceedings,  or (v)  complete  or
partial   withdrawal   under   ERISA   from  any   Multiemployer   Plan  or  the
reorganization,  insolvency,  or termination of any  Multiemployer  Plan, and in
each of the foregoing cases, such event or condition, together with


CREDIT AGREEMENT                                                        Page 44





all other  events  or  conditions,  if any,  could in the  opinion  of the Banks
subject any Borrower or any Guarantor to any tax, penalty, or other liability to
a Plan, the PBGC, or otherwise (or any combination thereof); or

               (g) Any Borrower or any  Guarantor  shall  generally  not pay its
debts as they become due,  or shall  admit in writing its  inability  to pay its
debts  generally,  or  shall  make a  general  assignment  for  the  benefit  of
creditors, or shall institute, or there shall be instituted against any Borrower
or any Guarantor,  any proceeding or case seeking to adjudicate it a bankrupt or
insolvent  or seeking  liquidation,  winding  up,  reorganization,  arrangement,
adjustment,  protection,  relief or composition of it or its debts under any law
relating to bankruptcy,  insolvency or reorganization or relief or protection of
debtors or  seeking  the entry of an order for  relief or the  appointment  of a
receiver,  trustee,  custodian  or  other  similar  official  for it or for  any
substantial part of its property,  and, if such proceeding is instituted against
any Borrower or any  Guarantor  and is being  contested by such Borrower or such
Guarantor,  as the case may be, in good faith by appropriate  proceedings,  such
proceedings shall remain undismissed or unstayed for a period of 30 days; or the
any  Borrower or any  Guarantor  shall take any action  (corporate  or other) to
authorize or further any of the actions described above in this subsection; or

               (h) Any event of default described in any Security Document shall
have  occurred  and be  continuing,  or any  material  provision of any Security
Document  shall at any time for any  reason  cease to be valid and  binding  and
enforceable against any obligor thereunder,  or the validity,  binding effect or
enforceability  thereof shall be contested by any person, or any obligor,  shall
deny that it has any or  further  liability  or  obligation  thereunder,  or any
Security Document shall be terminated,  invalidated or set aside, or be declared
ineffective  or  inoperative  or in any way cease to give or provide to the Bank
the benefits purported to be created thereby; or

               (i) (A) COG or COE shall fail to be a wholly-owned  Subsidiary of
CRI, (B) COGL shall fail to be a  wholly-owned  subsidiary  of COG or, after the
acquisition is completed pursuant to the Purchase  Documents,  Black Stone shall
fail to be a  wholly-owned  subsidiary  of COG, or (C) the Board of Directors of
CRI shall not consist of a majority of the Continuing Directors of CRI; or

               (j) Any Change in Control shall occur.


          8.2 Remedies.

               (a) Upon the occurrence  and during the  continuance of any Event
of Default,  the Agent may,  and upon being  directed  to do so by the  Majority
Banks,  shall,  by notice to the Borrowers  terminate the Commitments or declare
the outstanding  principal of, and accrued  interest on, the Notes and all other
amounts due under this Agreement and all other


CREDIT AGREEMENT                                                        Page 45





Loan Documents,  to be immediately due and payable, or demand immediate delivery
of cash collateral, and the Borrowers agree to deliver such cash collateral upon
such demand,  in an amount equal to the maximum  amount that may be available to
be drawn at any time prior to the stated  expiry of all  outstanding  Letters of
Credit, or all of the above, whereupon the Commitments shall terminate forthwith
and all such amounts shall become  immediately due and payable,  or both, as the
case may be,  provided  that in the case of any event or condition  described in
Section 8.1(g), the Commitments shall automatically  terminate forthwith and all
such amounts shall  automatically  become  immediately  due and payable  without
notice; in each case without demand, presentment,  protest, diligence, notice of
dishonor or other formality, all of which are hereby expressly waived.

               (b) Upon the occurrence and during the  continuance of such Event
of Default,  the Agent may,  and upon being  directed  to do so by the  Majority
Banks,  shall, in addition to the remedies  provided in Section 8.2(a),  enforce
its  rights  either  by  suit in  equity,  or by  action  at  law,  or by  other
appropriate  proceedings,  whether for the specific  performance  (to the extent
permitted by law) of any covenant or agreement contained in this Agreement or in
any then outstanding Note or any Security  Document or in aid of the exercise of
any power granted in this Agreement,  any then outstanding Notes or any Security
Document,  and may enforce the payment of any then outstanding  Notes and any of
the other rights of the Agent and the Banks in any other  agreement or available
at law or in equity.

               (c) Upon the occurrence  and during the  continuance of any Event
of Default  hereunder,  each Bank may at any time and from time to time, without
notice to the Borrowers (any  requirement for such notice being expressly waived
by the  Borrowers and  Guarantors)  set off and apply against any and all of the
obligations  of any Borrower or any  Guarantor now or hereafter  existing  under
this Agreement, any of the Notes or the Security Documents, any and all deposits
(general or special, time or demand,  provisional or final) at any time held and
other  indebtedness  at any time  owing by such Bank to or for the credit or the
account of any Borrower or any Guarantor and any property of any Borrower or any
Guarantor from time to time in possession of such Bank,  irrespective of whether
or not any  Bank  shall  have  made  any  demand  hereunder  and  although  such
obligations may be contingent and unmatured.  The rights of the Banks under this
Section 8.2(c) are in addition to other rights and remedies (including,  without
limitation, other rights of setoff) which the Banks may have.

          8.3  Distribution of Proceeds.  All proceeds of any realization on the
Collateral  received by the Agent  pursuant  to the  Security  Documents  or any
payments on any of the liabilities secured by the Security Documents received by
the Agent or any Bank upon and  during the  continuance  of any Event of Default
shall be allocated and distributed as follows:

               (a) First,  to the payment of all costs and  expenses,  including
without  limitation  all  attorneys'  fees, of the Agent in connection  with the
enforcement  of  the  Security   Documents  and  otherwise   administering  this
Agreement;



CREDIT AGREEMENT                                                         Page 46





               (b)  Second,  to the  payment  of all costs,  expenses  and fees,
including without limitation,  commitment fees and attorneys' fees, owing to the
Banks pursuant to the Bank  Obligations  on a pro rata basis in accordance  with
the Bank  Obligations  consisting of fees, costs and expenses owing to the Banks
under the Bank Obligations for application to payment of such liabilities;

               (c) Third,  to the Banks on a pro rata basis in  accordance  with
the Bank  Obligations  consisting of interest and principal  (including  without
limitation any cash collateral for any  outstanding  Letters of Credit) owing to
the Banks under the Bank  Obligations and to any Bank owing pursuant to any Swap
Agreement to which it is a party (whether  pursuant to a termination  thereof or
otherwise), for application to payment of such liabilities;

               (d) Fourth,  to the payment of any and all other amounts owing to
the  Banks on a pro rata  basis in  accordance  with the  total  amount  of such
Indebtedness  owing to each of the  Banks,  for  application  to payment of such
liabilities; and

               (e)  Fifth,  to the  Borrowers  or such  other  person  as may be
legally entitled thereto.

          8.4 Letter of Credit  Liabilities.  For the  purposes of payments  and
distributions  under Section 8.3, the full amount of Bank Obligations on account
of any Letter of Credit then  outstanding  but not drawn upon shall be deemed to
be then due and  owing.  Amounts  distributable  to the Banks on account of such
Bank  Obligations  under such Letter of Credit  shall be deposited in a separate
interest bearing  collateral account in the name of and under the control of the
Agent and held by the Agent  first as  security  for such  Letter of Credit Bank
Obligations  and then as security for all other Bank  Obligations and the amount
so deposited  shall be applied to the Letter of Credit Bank  Obligations at such
times and to the  extent  that such  Letter of Credit  Bank  Obligations  become
absolute  liabilities  and if and to the extent  that the Letter of Credit  Bank
Obligations fail to become absolute Bank  Obligations  because of the expiration
or termination of the underlying Letters of Credit without being drawn upon then
such amounts shall be applied to the  remaining  Bank  Obligations  in the order
provided in Section  8.3.  Each  Borrower  hereby  grants to the Agent,  for the
benefit of the Banks, a lien and security  interest in all such funds  deposited
in such separate interest bearing  collateral  account,  as security for all the
Bank Obligations as set forth above.



CREDIT AGREEMENT                                                        Page 47





          SECTION 9. The Agent, the Co-Agent and the Banks.

          9.1 Appointment;  Nature of  Relationship.  The First National Bank of
Chicago is hereby appointed by the Lenders as the Agent hereunder and under each
other Loan Document, and each of the Lenders irrevocably authorizes the Agent to
act as the contractual  representative of such Lender with the rights and duties
expressly set forth herein and in the other Loan Documents.  The Agent agrees to
act as such contractual  representative upon the express conditions contained in
this  Section 9.  Notwithstanding  the use of the  defined  term  "Agent," it is
expressly understood and agreed that the Agent shall have not have any fiduciary
responsibilities  to any  Lender by reason of this  Agreement  or any other Loan
Document  and that the  Agent is  merely  acting  as the  representative  of the
Lenders with only those duties as are expressly set forth in this  Agreement and
the  other  Loan  Documents.   In  its  capacity  as  the  Lenders'  contractual
representative, the Agent (i) does not hereby assume any fiduciary duties to any
of the Lenders,  (ii) is a "representative" of the Lenders within the meaning of
Section  9- 105 of the  Uniform  Commercial  Code  and  (iii)  is  acting  as an
independent  contractor,  the rights  and  duties of which are  limited to those
expressly set forth in this Agreement and the other Loan Documents.  Each of the
Lenders  hereby agrees to assert no claim against the Agent on any agency theory
or any other theory of  liability  for breach of  fiduciary  duty,  all of which
claims each Lender hereby waives.

          9.2 Powers.  The Agent shall have and may  exercise  such powers under
the Loan  Documents as are  specifically  delegated to the Agent by the terms of
each thereof,  together with such powers as are reasonably  incidental  thereto.
The Agent shall have no implied duties to the Lenders,  or any obligation to the
Lenders to take any action thereunder except any action specifically provided by
the Loan Documents to be taken by the Agent.

          9.3  General  Immunity.  Neither  the Agent nor any of its  directors,
officers,  agents or employees  shall be liable to the Borrowers,  any Borrower,
the  Lenders or any Lender for any action  taken or omitted to be taken by it or
them  hereunder or under any other Loan  Document or in  connection  herewith or
therewith except for its or their own gross negligence or willful misconduct.

          9.4 No Responsibility for Loans, Recitals,  etc. Neither the Agent nor
any of its directors,  officers, agents or employees shall be responsible for or
have any duty to ascertain, inquire into, or verify (i) any statement,  warranty
or  representation  made in  connection  with any Loan Document or any borrowing
hereunder;  (ii)  the  performance  or  observance  of any of the  covenants  or
agreements  of  any  obligor  under  any  Loan  Document,   including,   without
limitation,  any agreement by an obligor to furnish information directly to each
Lender;  (iii) the  satisfaction  of any  condition  specified in Section 3.2 or
otherwise   hereunder;   (iv)  the  validity,   enforceability,   effectiveness,
sufficiency  or  genuineness  of any Loan  Document or any other  instrument  or
writing  furnished  in  connection  therewith;  or (v) the  value,  sufficiency,
creation, perfection or priority of any interest in any collateral security. The
Agent  shall have no duty to disclose  to the  Lenders  information  that is not
required to be furnished by the Borrowers to the Agent at


CREDIT AGREEMENT                                                        Page 48





such time, but is voluntarily furnished by the Borrowers to the Agent (either in
its capacity as Agent or in its individual capacity).

          9.5 Action on Instructions of Lenders. The Agent shall in all cases be
fully protected in acting, or in refraining from acting, hereunder and under any
other Loan  Document  in  accordance  with  written  instructions  signed by the
Majority  Lenders,  and such instructions and any action taken or failure to act
pursuant  thereto  shall be binding on all of the  Lenders and on all holders of
Notes.  The Lenders hereby  acknowledge that the Agent shall be under no duty to
take any  discretionary  action  permitted  to be taken  by it  pursuant  to the
provisions  of this  Agreement  or any other  Loan  Document  unless it shall be
requested in writing to do so by the Majority Lenders.  The Agent shall be fully
justified  in failing or  refusing  to take any action  hereunder  and under any
other Loan Document unless it shall first be indemnified to its  satisfaction by
the Lenders pro rata against any and all liability, cost and expense that it may
incur by reason of taking or continuing to take any such action.

          9.6 Employment of Agents and Counsel. The Agent may execute any of its
duties  as Agent  hereunder  and under any other  Loan  Document  by or  through
employees,  agents,  and  attorneys-in-fact  and shall not be  answerable to the
Lenders,  except  as to money or  securities  received  by it or its  authorized
agents,  for the default or misconduct  of any such agents or  attorneys-in-fact
selected by it with  reasonable  care.  The Agent shall be entitled to advice of
counsel  concerning all matters  pertaining to the agency hereby created and its
duties hereunder and under any other Loan Document.

          9.7  Reliance on  Documents;  Counsel.  The Agent shall be entitled to
rely upon any Note, notice, consent,  certificate,  affidavit, letter, telegram,
statement,  paper or  document  believed  by it to be genuine and correct and to
have been  signed or sent by the proper  person or  persons,  and, in respect to
legal matters,  upon the opinion of counsel selected by the Agent, which counsel
may be employees of the Agent.

          9.8 Agent's  Reimbursement and  Indemnification.  The Lenders agree to
reimburse and  indemnify  the Agent  ratably in  proportion to their  respective
Commitments (or, if the Commitments have been terminated, in proportion to their
Commitments  immediately  prior to such  termination)  (i) for any  amounts  not
reimbursed by the Borrowers for which the Agent is entitled to  reimbursement by
the Borrowers under the Loan Documents,  (ii) for any other expenses incurred by
the  Agent on  behalf  of the  Lenders,  in  connection  with  the  preparation,
execution,  delivery,  administration  and enforcement of the Loan Documents and
(iii) for any liabilities,  obligations,  losses, damages,  penalties,  actions,
judgments,  suits,  costs,  expenses  or  disbursements  of any kind and  nature
whatsoever which may be imposed on, incurred by or asserted against the Agent in
any way relating to or arising out of the Loan  Documents or any other  document
delivered in connection therewith or the transactions  contemplated  thereby, or
the  enforcement  of any of the terms  thereof or of any such  other  documents,
provided  that no Lender shall be liable for any of the  foregoing to the extent
they arise from the gross negligence


CREDIT AGREEMENT                                                        Page 49





or willful  misconduct of the Agent.  The  obligations of the Lenders under this
Section 9.8 shall survive  payment of the Bank  Obligations  and  termination of
this Agreement.

          9.9 Notice of Default. The Agent shall not be deemed to have knowledge
or notice of the occurrence of any Default or Event of Default  hereunder unless
the Agent has received  written notice from a Lender or a Borrower  referring to
this Agreement describing such Default or Event of Default and stating that such
notice is a "notice of  default".  In the event that the Agent  receives  such a
notice, the Agent shall give prompt notice thereof to the Lenders.

          9.10 Rights as a Lender. In the event the Agent is a Lender, the Agent
shall  have the same  rights  and  powers  hereunder  and under  any other  Loan
Document  as any  Lender  and may  exercise  the same as  though it were not the
Agent, and the term "Lender" or "Lenders" shall, at any time when the Agent is a
Lender,  unless  the  context  otherwise  indicates,  include  the  Agent in its
individual  capacity.  The Agent may accept  deposits  from,  lend money to, and
generally engage in any kind of trust,  debt,  equity or other  transaction,  in
addition to those  contemplated  by this  Agreement or any other Loan  Document,
with any Borrower or any of their respective  Subsidiaries in which any Borrower
or such Subsidiary is not restricted hereby from engaging with any other Person.
The Agent, in its individual capacity, is not obligated to remain a Lender.

          9.11 Lender Credit  Decision.  Each Lender  acknowledges  that it has,
independently  and without reliance upon the Agent or any other Lender and based
on the financial  statements  prepared by the Borrowers and such other documents
and information as it has deemed  appropriate,  made its own credit analysis and
decision to enter into this Agreement and the other Loan Documents.  Each Lender
also  acknowledges  that it will,  independently  and without  reliance upon the
Agent or any other  Lender and based on such  documents  and  information  as it
shall deem appropriate at the time, continue to make its own credit decisions in
taking or not taking action under this Agreement and the other Loan Documents.

          9.12  Successor  Agent.  The  Agent  may  resign at any time by giving
written notice thereof to the Lenders and the Borrowers,  such resignation to be
effective upon the  appointment of a successor  Agent or, if no successor  Agent
has been appointed, forty-five days after the retiring Agent gives notice of its
intention to resign. Upon any such resignation,  the Majority Lenders shall have
the right to appoint,  on behalf of the Borrowers  and the Lenders,  a successor
Agent.  If no  successor  Agent  shall have been so  appointed  by the  Majority
Lenders  within  thirty days after the  resigning  Agent's  giving notice of its
intention to resign,  then the  resigning  Agent may  appoint,  on behalf of the
Borrowers,  and the Lenders, a successor Agent. If the Agent has resigned and no
successor  Agent has been  appointed,  the Lenders may perform all the duties of
the Agent  hereunder and the Borrowers shall make all payments in respect of the
Bank Obligations to the applicable  Lender and for all other purposes shall deal
directly  with the Lenders.  No successor  Agent shall be deemed to be appointed
hereunder  until such  successor  Agent has accepted the  appointment.  Any such
successor Agent shall be a commercial bank having capital and retained  earnings
of at least $50,000,000. Upon the acceptance of any


CREDIT AGREEMENT                                                        Page 50





appointment as Agent hereunder by a successor Agent,  such successor Agent shall
thereupon succeed to and become vested with all the rights,  powers,  privileges
and duties of the resigning Agent.  Upon the effectiveness of the resignation of
the  Agent,  the  resigning  Agent  shall  be  discharged  from its  duties  and
obligations  hereunder and under the Loan Documents.  After the effectiveness of
the resignation of an Agent,  the provisions of this Section 9 shall continue in
effect for the benefit of such Agent in respect of any actions  taken or omitted
to be taken by it while it was acting as the Agent hereunder and under the other
Loan Documents.

          9.13 Pro Rata Sharing by Banks. Each Bank agrees with every other Bank
that,  in the event that it shall  receive  and retain any payment on account of
the  Borrowers's  obligations  under this  Agreement,  the Notes or the Security
Documents in a greater  proportion than that received by any other Bank, whether
such payment be voluntary, involuntary or by operation of law, by application of
set-off of any indebtedness or otherwise, then such Bank shall promptly purchase
a participation interest from the other Banks, without recourse, for cash and at
face value,  ratably in  accordance  with its Pro Rata Share,  in such an amount
that each Bank shall have  received  payment in respect of such  obligations  in
accordance with its Pro Rata Share; provided,  that if any such purchase be made
by any Bank and if any such excess payment  relating thereto or any part thereof
is thereafter  recovered from such Bank,  appropriate  adjustment in the related
purchase from the other Banks shall be made by rescission and restoration of the
purchase  price as to the portion of such  excess  payment so  recovered.  It is
further  agreed that,  to the extent there is then owing by the Borrowers to any
Bank indebtedness other than that evidenced by this Agreement, the Notes and the
Security  Documents  to which such Bank may apply any  involuntary  payments  of
indebtedness by the Borrowers, including those resulting from exercise of rights
of  set-off  or  similar  rights,  such Bank  shall  apply all such  involuntary
payments first to obligations of the Borrowers to the Banks  hereunder and under
the Notes and the Security Documents and then to such other indebtedness owed to
it by the Borrowers. In addition, it is further agreed that any and all proceeds
resulting  from a sale or  other  disposition  of any  collateral  which  may be
hereafter  granted for the benefit of the Banks to secure the obligations of the
Borrowers  hereunder,  shall be applied first to obligations of the Borrowers to
the Banks  hereunder  and under the Notes and the Security  Documents,  and then
ratably to any other  indebtedness  owed by the  Borrowers to the Banks which is
secured by such collateral.

          9.14 Determination of Borrowing Base, Etc. Any  redetermination of the
Borrowing  Base shall be made  mutually by the Agent and the Co-Agent  (provided
that  if  the  Agent  and  the   Co-Agent   cannot  so  mutually   agree,   such
redetermination  of  Borrowing  Base shall be the lower of such  redetermination
made by the Agent or the Co-Agent  individually) and submitted to the Banks. The
redetermined  Borrowing  Base  shall  then be  effective  when  approved  by the
Majority  Banks.  The Borrowing  Base may be  re-evaluated  from time to time as
determined by the Majority Banks,  and will be re-evaluated  upon the request of
the Borrowers  (provided that the Borrowers cannot request any  re-evaluation of
the  Borrowing  Base more than four times in any twelve month  period),  and, in
addition, on or within 20 days prior to the date any Subordinated Debt is issued
or otherwise incurred and at least twice annually as follows:


CREDIT AGREEMENT                                                         Page 51





promptly  upon  receipt  of the annual  reserve  report  referred  to in Section
7.1(d)(ix)  hereof and each six  months  thereafter.  Except  for the  scheduled
re-evaluations  of the Borrowing Base,  each Bank requesting a re-evaluation  of
the Borrowing Base agrees to give notice to the Borrowers of such request.

          9.15 Co-Agent.  Bank One, Texas,  N.A., as Co-Agent  hereunder,  shall
have no duties or liabilities.


          SECTION 10. Miscellaneous.

          10.1  Amendments;  Etc. (a) This  Agreement  and any term or provision
hereof may be amended, waived or terminated by an instrument in writing executed
by the  Borrowers  and  the  Majority  Banks,  provided,  that,  notwithstanding
anything in this  Agreement to the contrary,  except by an instrument in writing
executed by the Borrowers  and all of the Banks,  no such  amendment,  waiver or
termination  shall  authorize  or permit the  extension  of the time or times of
payment of the  principal  of, or  interest  on, the Notes or the  reduction  in
principal  amount thereof or the rate of interest  thereon,  or any fees payable
hereunder,  or increase the  respective  Commitments of any Bank, or release any
Guaranty or Borrower,  or release any material amount of the Collateral from the
Liens granted pursuant hereto, or amend this Section 10.1.

               (a) Any such amendment,  waiver or termination shall be effective
only in the specific instance and for the specific purpose for which given.

               (c)  Notwithstanding  anything  herein to the contrary,  any Bank
that has failed to fund any  Advance or other  amount  required  to be funded by
such Bank  hereunder  shall not be  entitled  to vote  (whether to consent or to
withhold its consent) with respect to any amendment,  modification,  termination
or waiver of any provision of any Loan Document or a departure  therefrom or any
direction  from the Banks to the Agent and,  for  purposes  of  determining  the
Majority Banks, the Commitments and Advances of such Bank shall be disregarded.

          10.2  Notices.  (a) Except as  otherwise  provided in Section  10.2(c)
hereof, all notices, requests, consents and other communications hereunder shall
be in writing and shall be delivered or sent to the Borrowers, the Banks and the
Agent at the respective  addresses for notices set forth on the signature  pages
hereof,  or to such other  address as may be designated  by the  Borrowers,  the
Agent or any Bank by notice to the other  parties  hereto.  All notices shall be
deemed  to have  been  given  at the time of  actual  delivery  thereof  to such
address,  or if sent by the Agent or any Bank to the  Borrowers  by certified or
registered mail,  postage prepaid,  to such address,  on the fifth day after the
date of mailing.



CREDIT AGREEMENT                                                        Page 52





               (b)  Notices  by the  Borrowers  to the  Agent  with  respect  to
requests for Advances pursuant to Section 3.1 and notices of prepayment pursuant
to Section 4.1(c) shall be irrevocable and binding on the Borrowers.

               (c) Any notice to be given by the Borrowers to the Agent pursuant
to Section  4.1(c) or Section 3.1 and any notice to be given by the Agent or any
Bank hereunder, may be given by telephone, by telex or by facsimile transmission
and must be immediately  confirmed in writing in the manner  provided in Section
10.2(a).  Any such notice given by  telephone,  telex or facsimile  transmission
shall be deemed  effective upon receipt thereof by the party to whom such notice
is given.

          10.3 Conduct No Waiver;  Remedies Cumulative.  No course of dealing on
the part of the Agent or the Banks,  nor any delay or failure on the part of the
Agent or any Bank in exercising any right,  power or privilege  hereunder  shall
operate as a waiver of such right, power or privilege or otherwise prejudice the
Agent's or the Banks'  rights and  remedies  hereunder;  nor shall any single or
partial  exercise  thereof preclude any further exercise thereof or the exercise
of any other right,  power or privilege.  No right or remedy  conferred  upon or
reserved  to the Agent or the Banks  under  this  Agreement  is  intended  to be
exclusive  of any other  right or remedy,  and every  right and remedy  shall be
cumulative and in addition to every other right or remedy given hereunder or now
or hereafter  existing under any applicable law. Every right and remedy given by
this  Agreement or by applicable  law to the Agent or the Banks may be exercised
from time to time and as often as may be deemed expedient by them.

          10.4  Reliance  on and  Survival  of  Various  Provisions.  All terms,
covenants,  agreements,  representations  and  warranties of the Borrowers  made
herein or in any certificate or other document  delivered  pursuant hereto shall
be  deemed  to  be  material  and  to  have  been  relied  upon  by  the  Banks,
notwithstanding any investigation heretofore or hereafter made by any Bank or on
any Bank's behalf, and those covenants and agreements of the Borrowers set forth
in Section 10.5 hereof shall  survive the  repayment in full of the Advances and
other  obligations of the Borrowers  hereunder and under Security  Documents and
the  termination of the  Commitments.  10.5 Expenses;  Indemnification.  (a) The
Borrowers  agree to pay and save  the  Agent  harmless  from  liability  for the
payment of the  reasonable  fees and  expenses  of any  counsel  the Agent shall
employ,  in  connection  with the  preparation,  execution  and delivery of this
Agreement,  the Notes and the Security  Documents  and the  consummation  of the
transactions contemplated hereby and in connection with any amendments,  waivers
or consents and other matters in connection therewith,  and all reasonable costs
and expenses of the Agent and the Banks (including  reasonable fees and expenses
of counsel) in connection with any  enforcement of this Agreement,  the Notes or
the Security Documents.

               (b) Each of the Borrowers  hereby  indemnifies and agrees to hold
harmless  the Banks and the Agent,  and their  respective  officers,  directors,
employees  and agents,  harmless  from and against any and all claims,  damages,
losses, liabilities, costs or expenses of


CREDIT AGREEMENT                                                        Page 53





any kind or nature  whatsoever  which the Banks or the Agent or any such  person
may  incur  or which  may be  claimed  against  any of them by  reason  of or in
connection with any Letter of Credit,  and neither any Bank nor the Agent or any
of their respective officers, directors,  employees or agents shall be liable or
responsible  for:  (i) the use which may be made of any  Letter of Credit or for
any acts or omissions  of any  beneficiary  in  connection  therewith;  (ii) the
validity, sufficiency or genuineness of documents or of any endorsement thereon,
even  if  such  documents  should  in fact  prove  to be in any or all  respects
invalid,  insufficient,  fraudulent or forged; (iii) payment by the Agent to the
beneficiary  under any Letter of Credit against  presentation of documents which
do not comply with the terms of any Letter of Credit,  including  failure of any
documents to bear any reference or adequate  reference to such Letter of Credit;
(iv) any error,  omission,  interruption or delay in  transmission,  dispatch or
delivery of any message or advice,  however transmitted,  in connection with any
Letter of Credit; or (v) any other event or circumstance  whatsoever  arising in
connection  with any Letter of Credit;  provided,  however,  that the  Borrowers
shall not be  required  to  indemnify  the  Banks  and the Agent and such  other
persons,  and the Banks and the Agent  shall be liable to the  Borrowers  to the
extent,  but only to the extent,  of any direct,  as opposed to consequential or
incidental,  damages  suffered  by any  Borrower  which  were  caused by (A) the
Agent's  wrongful  dishonor of any Letter of Credit after the presentation to it
by the  beneficiary  thereunder of a draft or other demand for payment and other
documentation strictly complying with the terms and conditions of such Letter of
Credit,  or (B) the payment by the Agent to the beneficiary  under any Letter of
Credit against  presentation  of documents which do not comply with the terms of
the Letter of Credit to the extent,  but only to the extent,  that such  payment
constitutes gross negligence or wilful misconduct of the Agent. It is understood
that in making  any  payment  under a Letter of  Credit  the Agent  will rely on
documents  presented to it under such Letter of Credit as to any and all matters
set forth therein without further  investigation and regardless of any notice or
information  to the contrary,  and such reliance and payment  against  documents
presented  under a Letter  of  Credit  substantially  complying  with the  terms
thereof shall not be deemed gross  negligence or wilful  misconduct of the Agent
in connection with such payment.  It is further  acknowledged  and agreed that a
Borrower may have rights against the  beneficiary  or others in connection  with
any Letter of Credit with respect to which the Agent is alleged to be liable and
it shall be a precondition  of the assertion of any liability of the Agent under
this  Section  that such  Borrower  shall first have taken  reasonable  steps to
enforce remedies in respect of the alleged loss against such beneficiary and any
other parties  obligated or liable in connection  with such Letter of Credit and
any related transactions.

               (c) In  consideration  of the  execution  and  delivery  of  this
Agreement  by each Bank and the  extension  of the  Commitments,  the  Borrowers
hereby  indemnify,  exonerate  and hold the  Agent,  each Bank and each of their
respective  officers,  directors,   employees  and  agents  (collectively,   the
"Indemnified  Parties")  free and harmless from and against any and all actions,
causes of action,  suits, losses,  costs,  liabilities and damages, and expenses
incurred in connection  therewith  (irrespective of whether any such Indemnified
Party is a party to the action for which  indemnification  hereunder is sought),
including reasonable


CREDIT AGREEMENT                                                        Page 54





attorneys' fees and disbursements (collectively, the "Indemnified Liabilities"),
incurred  by the  Indemnified  Parties or any of them as a result of, or arising
out of, or relating to:

                    (i) any  transaction  financed or to be financed in whole or
in part, directly or indirectly, with the proceeds of any Advance;

                    (ii) the entering into and performance of this Agreement and
any other agreement or instrument  executed in connection herewith by any of the
Indemnified  Parties  (including  any  action  brought  by or on  behalf  of the
Borrowers as the result of any  determination  by the Majority Banks not to fund
any Advance in compliance with this Agreement);

                    (iii) any investigation, litigation or proceeding related to
any  acquisition  or  proposed  acquisition  by the  Borrowers  or any of  their
Subsidiaries of any portion of the stock or assets of any Person, whether or not
the Agent or such Bank is party thereto;

                    (iv) any investigation,  litigation or proceeding related to
any  environmental  cleanup,  audit,  compliance or other matter relating to any
release by the Borrowers or any of their  Subsidiaries of any hazardous material
or any violations of Environmental Laws; or

                    (v)  the  presence  on or  under,  or the  escape,  seepage,
leakage, spillage, discharge,  emission,  discharging or releases from, any real
property  owned or operated by the  Borrowers or any  Subsidiary  thereof of any
Hazardous Material (including any losses, liabilities, damages, injuries, costs,
expenses or claims asserted or arising under any Environmental Law),  regardless
of  whether  caused  by,  or  within  the  control  of,  the  Borrowers  or such
Subsidiary,  except for any such Indemnified Liabilities arising for the account
of a particular Indemnified Party by reason of the activities of the Indemnified
Party on the property of the Borrowers conducted  subsequent to a foreclosure on
such  property  by the Banks or by reason of the  relevant  Indemnified  Party's
gross negligence or wilful misconduct or breach of this Agreement, and if and to
the extent that the foregoing  undertaking may be unenforceable  for any reason,
the Borrowers hereby agrees to make the maximum  contribution to the payment and
satisfaction of each of the Indemnified  Liabilities  which is permissible under
applicable  law. The Borrowers  shall be obligated to indemnify the  Indemnified
Parties for all Indemnified Liabilities subject to and pursuant to the foregoing
provisions,  regardless of whether the Borrowers or any of its  Subsidiaries had
knowledge  of the  facts  and  circumstances  giving  rise to  such  Indemnified
Liability.

               10.6 Successors and Assigns.  (a) This Agreement shall be binding
upon and  inure to the  benefit  of the  parties  hereto  and  their  respective
successors and assigns,  provided that the Borrowers may not,  without the prior
consent of the Majority Banks,  assign their rights or obligations  hereunder or
under  the  Notes  and the Banks  shall  not be  obligated  to make any  Advance
hereunder to any entity other than the Borrowers.



CREDIT AGREEMENT                                                         Page 55





                    (b)  Any  Bank  may  sell a  participation  interest  to any
financial  institution  or  institutions,  and  such  financial  institution  or
institutions may further sell, a participation  interest  (undivided or divided)
in, the Advances and such Bank's rights and benefits under this  Agreement,  the
Notes and the Security Documents and to the extent of that  participation,  such
participant or participants  shall have the same rights and benefits against the
Borrowers under Section 6.2(c) as it or they would have had if  participation of
such  participant  or  participants  were the Bank  making the  Advances  to the
Borrowers hereunder,  provided,  however, that (i) such Bank's obligations under
this  Agreement  shall remain  unmodified  and fully  effective and  enforceable
against such Bank,  (ii) such Bank shall remain solely  responsible to the other
parties hereto for the  performance of such  obligations,  (iii) such Bank shall
remain  the  holder of its Note for all  purposes  of this  Agreement,  (iv) the
Borrowers,  the Agent and the other  Banks  shall  continue  to deal  solely and
directly  with such Bank in connection  with such Bank's rights and  obligations
under this  Agreement,  and (v) such Bank shall not grant to its participant any
rights to consent or  withhold  consent to any action  taken by such Bank or the
Agent under this Agreement other than action requiring the consent of all of the
Banks hereunder.  The Agent from time to time in its sole discretion may appoint
agents for the purpose of servicing  and  administering  this  Agreement and the
transactions  contemplated  hereby and  enforcing  or  exercising  any rights or
remedies of the Agent provided under this Agreement, the Notes, or otherwise. In
furtherance  of such  agency,  the Agent may from time to time  direct  that the
Borrowers  provide  notices,  reports and other  documents  contemplated by this
Agreement (or duplicates  thereof) to such agent.  The Borrowers hereby consents
to the appointment of such agent and agrees to provide all such notices, reports
and other  documents  and to otherwise  deal with such agent acting on behalf of
the Agent in the same  manner as would be  required  if  dealing  with the Agent
itself.

                    (c) Each Bank may,  with the prior  consent of the Borrowers
(which consent shall not be unreasonably  withheld) and the Agent, assign to one
or more banks or other  entities all or a portion of its rights and  obligations
under this Agreement  (including,  without  limitation,  all or a portion of its
Commitment,  the  Advances  owing to it and the Note or Notes  and the  Security
Documents held by it); provided, however, that (i) each such assignment shall be
of a uniform, and not a varying, percentage of all rights and obligations,  (ii)
except in the case of an assignment  of all of a Bank's  rights and  obligations
under this  Agreement,  (A) the amount of the  Commitment of the assigning  Bank
being assigned  pursuant to each such  assignment  (determined as of the date of
the Assignment and Acceptance with respect to such assignment) shall in no event
be less than $1,000,000,  and in integral multiples of $500,000  thereafter,  or
such lesser  amount as the  Borrowers and the Agent may consent to and (B) after
giving  effect to each such  assignment,  the  amount of the  Commitment  of the
assigning Bank shall in no event be less than $1,000,000,  and (iii) the parties
to each  such  assignment  shall  execute  and  deliver  to the  Agent,  for its
acceptance  and recording in the Register,  an Assignment  and Acceptance in the
form of Exhibit F hereto (an  "Assignment  and  Acceptance"),  together with any
Note or Notes subject to such assignment and a processing and recordation fee of
$3,500. Upon such execution,  delivery, acceptance and recording, from and after
the effective date specified in such Assignment and Acceptance, (x) the assignee
thereunder shall be a party


CREDIT AGREEMENT                                                        Page 56





hereto  and,  to the extent  that  rights and  obligations  hereunder  have been
assigned to it pursuant to such Assignment and  Acceptance,  have the rights and
obligations of a Bank hereunder and (y) the Bank assignor  thereunder  shall, to
the extent  that  rights and  obligations  hereunder  have been  assigned  by it
pursuant  to such  Assignment  and  Acceptance,  relinquish  its  rights  and be
released  from its  obligations  under this  Agreement  (and,  in the case of an
Assignment and Acceptance  covering all of the remaining portion of an assigning
Bank's rights and obligations under this Agreement,  such Bank shall cease to be
a party hereto).

                    (d)  By  executing  and   delivering   an   Assignment   and
Acceptance,  the Bank assignor thereunder and the assignee thereunder confirm to
and agree with each other and the other  parties  hereto as  follows:  (i) other
than as provided in such Assignment and Acceptance, such assigning Bank makes no
representation  or warranty  and assumes no  responsibility  with respect to any
statements,  warranties or  representations  made in or in connection  with this
Agreement or the execution,  legality,  validity,  enforceability,  genuineness,
sufficiency  or value of this  Agreement  or any other  instrument  or  document
furnished  pursuant hereto;  (ii) such assigning Bank makes no representation or
warranty and assumes no responsibility  with respect to the financial  condition
of the Borrowers or the performance or observance by the Borrowers of any of its
obligations  under this Agreement or any other instrument or document  furnished
pursuant  hereto;  (iii) such  assignee  confirms that it has received a copy of
this Agreement,  together with copies of the financial statements referred to in
Section  6.7  and  such  other  documents  and  information  as  it  has  deemed
appropriate  to make its own credit  analysis  and  decision  to enter into such
Assignment and Acceptance;  (iv) such assignee will,  independently  and without
reliance  under the Agent,  such  assigning  Bank or any other Bank and based on
such  documents  and  information  as it shall  deem  appropriate  at the  time,
continue to make its own credit  decisions in taking or not taking  action under
this Agreement; (v) such assignee appoints and authorizes the Agent to take such
action as agent on its behalf and to exercise such powers and  discretion  under
this Agreement as are delegated to the Agent by the terms hereof,  together with
such powers and discretion as are reasonably  incidental thereto;  and (vi) such
assignee  agrees that it will perform in accordance  with their terms all of the
obligations  that by the terms of this Agreement are required to be performed by
it as a Bank.

                    (e) The Agent shall  maintain at its address  designated  on
the signature pages hereof a copy of each Assignment and Acceptance delivered to
and accepted by it and a register for the recordation of the names and addresses
of the Banks and the Commitment  of, and principal  amount of the Advances owing
to, each Bank from time to time (the  "Register").  The entries in the  Register
shall be conclusive and binding for all purposes, absent manifest error, and the
Borrowers,  the Agent and the Banks may treat each Person whose name is recorded
in the  Register as a Bank  hereunder  for all purposes of this  Agreement.  The
Register  shall be available for  inspection by the Borrowers or any Bank at any
reasonable time and from time to time upon reasonable prior notice.



CREDIT AGREEMENT                                                        Page 57





                    (f)  Upon  its  receipt  of  an  Assignment  and  Acceptance
executed by an assigning  Bank and an assignee,  together with any Note or Notes
subject to such  assignment,  the Agent shall, if such Assignment and Acceptance
has been completed,  (i) accept such Assignment and Acceptance,  (ii) record the
information  contained  therein in the  Register  and (iii) give  prompt  notice
thereof to the  Borrowers.  Within five  Business Days after its receipt of such
notice,  the  Borrowers,  at its own expense,  shall  execute and deliver to the
Agent in exchange for the  surrendered  Note or Notes a new Note to the order of
such  assignee in an amount  equal to the  Commitment  assumed by it pursuant to
such  Assignment  and  Acceptance  and,  if the  assigning  Bank has  retained a
Commitment hereunder, a new Note to the order of the assigning Bank in an amount
equal to the Commitment  retained by it hereunder.  Such new Note or Notes shall
be in an aggregate  principal amount equal to the aggregate  principal amount of
such  surrendered  Note or  Notes,  shall be dated  the  effective  date of such
Assignment and Acceptance and shall  otherwise be in  substantially  the form of
Exhibit F hereto.

                    (g) The Banks may,  in  connection  with any  assignment  or
participation or proposed  assignment or participation  pursuant to this Section
10.6,   disclose  to  the  assignee  or  participant  or  proposed  assignee  or
participant,  any  information  relating  to the  Borrowers  provided  that such
proposed   assignee  or  participant   has  agreed  to  hold  such   information
confidential under the terms described in Section 10.19.

                    (h) Additional lenders may also become Banks hereunder, with
the prior  written  consent of the  Borrowers  and the Agent,  by  executing  an
Assumption  Agreement  substantially  in the form of Exhibit G hereto,  provided
that without the prior  written  consent of the Majority  Banks,  the  aggregate
Commitments of all Banks may not exceed  $200,000,000.  Any Bank, subject to the
prior written  approval of the Majority  Banks,  the Agent and the Borrowers and
subject  to being  paid in full for all  outstanding  liabilities  owing to such
Bank,  may be  terminated  as a Bank  hereunder  and upon such  termination  the
Borrowers  shall have the option to select a bank to  replace  such  terminating
bank and to assume the rights and obligations of such terminated Bank hereunder,
provided that such  replacement  bank is acceptable to the Agent and executes an
Assumption  Agreement  substantially  in the form of Exhibit G hereto.  Upon any
Bank being added hereto or terminated, a new schedule will be distributed by the
Agent to all Banks and the Borrowers showing the Commitment  amount,  the Bridge
Loan amount and the Pro Rata Share of each Bank.

               10.7  CHOICE  OF  LAW.  THE  LOAN  DOCUMENTS  (OTHER  THAN  THOSE
CONTAINING A CONTRARY  EXPRESS  CHOICE OF LAW  PROVISION)  SHALL BE CONSTRUED IN
ACCORDANCE WITH THE INTERNAL LAWS (AND NOT THE LAW OF CONFLICTS) OF THE STATE OF
ILLINOIS, BUT GIVING EFFECT TO FEDERAL LAWS APPLICABLE TO NATIONAL BANKS.

               10.8 Table of Contents  and  Headings.  The table of contents and
the  headings  of the various  subdivisions  hereof are for the  convenience  of
reference only and shall in no way modify any of the terms or provisions hereof.


CREDIT AGREEMENT                                                        Page 58






               10.9  Construction  of  Certain   Provisions.   All  computations
required  hereunder  and  all  financial  terms  used  herein  shall  be made or
construed in accordance with GAAP unless such principles are  inconsistent  with
the express  requirements of this Agreement.  If any provision of this Agreement
refers  to any  action  to be  taken by any  Person,  or which  such  Person  is
prohibited from taking,  such provision shall be applicable  whether such action
is taken  directly  or  indirectly  by such  Person,  whether  or not  expressly
specified in such provision.

               10.10 Integration and Severability.  This Agreement  embodies the
entire  agreement and  understanding  between the  Borrowers and the Banks,  and
supersedes  all prior  agreements  and  understandings,  relating to the subject
matter hereof. In case any one or more of the obligations of the Borrowers under
this Agreement, the Notes or any Security Documents shall be invalid, illegal or
unenforceable in any jurisdiction,  the validity, legality and enforceability of
the remaining  obligations of the Borrowers  shall not in any way be affected or
impaired thereby,  and such invalidity,  illegality or  unenforceability  in one
jurisdiction  shall not affect the validity,  legality or  enforceability of the
obligations  of the Borrowers  under this  Agreement,  the Notes or any Security
Documents in any other jurisdiction.

               10.11 Interest Rate Limitation. Notwithstanding any provisions of
this  Agreement,  the Notes or any  Security  Documents,  in no event  shall the
amount of interest paid or agreed to be paid by the  Borrowers  exceed an amount
computed at the highest rate of interest  permissible  under applicable law. If,
from  any  circumstances  whatsoever,  fulfillment  of  any  provision  of  this
Agreement,  the Notes or any Security  Documents at the time performance of such
provision  shall be due,  shall involve  exceeding the interest rate  limitation
validly  prescribed  by law  which a court of  competent  jurisdiction  may deem
applicable  hereto,  then, ipso facto,  the obligations to be fulfilled shall be
reduced to an amount computed at the highest rate of interest  permissible under
applicable law, and if for any reason whatsoever the Banks shall ever receive as
interest an amount which would be deemed unlawful under such applicable law such
interest  shall be  automatically  applied to the  payment of  principal  of the
Advances  outstanding and other obligations of the Borrowers  hereunder (whether
or not then due and  payable)  and not to the payment of  interest,  or shall be
refunded to the  Borrowers  if such  principal  has been paid in full.  Anything
herein to the contrary  notwithstanding,  the obligations of the Borrowers under
this  Agreement  shall be subject to the  limitation  that  payments of interest
shall not be  required  to the extent  that  receipt of any such  payment by the
Banks would be  contrary  to  provisions  of law  applicable  to the Banks which
limits the maximum  rate of interest  which may be charged or  collected  by the
Banks.

               10.12 Counterparts.  This Agreement may be executed in any number
of  counterparts,  all of which taken together shall constitute one and the same
instrument  and any of the parties  hereto may execute this Agreement by signing
any such counterpart.

               10.13 Independence of Covenants. All covenants hereunder shall be
given  independent  effect so that if a  particular  action or  condition is not
permitted  by any such  covenant,  the fact  that it  would be  permitted  by an
exception to, or would be otherwise within


CREDIT AGREEMENT                                                        Page 59





the limitations of, another  covenant shall not avoid the occurrence of an Event
of Default or any event or  condition  which  with  notice or lapse of time,  or
both,  could  become  such an Event of Default  if such  action is taken or such
condition exists.

               10.14 Consent to  Jurisdiction.  Notwithstanding  the place where
any liability  originates  or arises,  or is to be repaid,  any suit,  action or
proceeding arising out of or relating to this Agreement, any Security Documents,
or the Notes may be  instituted  in any court of competent  jurisdiction  in the
State of Illinois,  the Borrowers and each Guarantor hereby  irrevocably  waives
any objection  which it may have or hereafter has to the laying of such venue of
any such suit,  action or proceeding and any claim that any such suit, action or
proceeding has been brought in an inconvenient forum, and the Borrowers and each
Guarantor hereby irrevocably submits its person and property to the jurisdiction
of any such  court in any such  suit,  action or  proceedings.  Nothing  in this
Section  10.14 shall affect the right of the Bank to bring  proceedings  against
the Borrowers and each  Guarantor or any of their  property in the courts of any
other court of competent jurisdiction.

               10.15 JURY TRIAL WAIVER.  THE AGENT, THE BANKS, EACH BORROWER AND
EACH GUARANTOR,  AFTER  CONSULTING OR HAVING HAD THE OPPORTUNITY TO CONSULT WITH
COUNSEL,  KNOWINGLY,  VOLUNTARILY AND INTENTIONALLY  WAIVE ANY RIGHT ANY OF THEM
MAY HAVE TO A TRIAL BY JURY IN ANY LITIGATION  BASED UPON OR ARISING OUT OF THIS
AGREEMENT,  THE NOTES,  THE SECURITY  DOCUMENTS,  OR ANY RELATED  INSTRUMENT  OR
AGREEMENT OR ANY OF THE TRANSACTIONS  CONTEMPLATED BY THIS AGREEMENT,  THE NOTES
OR THE SECURITY DOCUMENTS OR ANY COURSE OF CONDUCT, DEALING, STATEMENTS (WHETHER
ORAL OR WRITTEN) OR ACTIONS OF ANY OF THEM.  NEITHER THE AGENT,  THE BANKS,  ANY
BORROWER  NOR ANY  GUARANTOR  SHALL  SEEK TO  CONSOLIDATE,  BY  COUNTERCLAIM  OR
OTHERWISE,  ANY SUCH ACTION IN WHICH A JURY TRIAL HAS BEEN WAIVED WITH ANY OTHER
ACTION IN WHICH A JURY TRIAL CANNOT BE OR HAS NOT BEEN WAIVED.  THESE PROVISIONS
SHALL NOT BE DEEMED TO HAVE BEEN  MODIFIED  IN ANY  RESPECT OR  RELINQUISHED  BY
EITHER THE AGENT AND THE BANKS OR THE BORROWERS AND THE  GUARANTORS  EXCEPT BY A
WRITTEN INSTRUMENT EXECUTED BY ALL OF THEM.

               10.16 Joint and Several Obligations; Contribution Rights; Savings
Clause. (a) Notwithstanding  anything to the contrary set forth herein or in any
Note or in any other Loan Document,  the obligations of the Borrowers  hereunder
and under the Notes and the other Loan Documents are joint and several.

                    (b) If any  Borrower  makes a payment in respect of the Bank
Obligations it shall have the rights of contribution set forth below against the
other  Borrowers;  provided that such  Borrower  shall not exercise its right of
contribution until all the Bank Obligations shall have been finally paid in full
in cash. If any Borrower makes a payment in


CREDIT AGREEMENT                                                         Page 60





respect of the Bank  Obligations  that is smaller in  proportion  to its Payment
Share (as  hereinafter  defined) than such payments made by the other  Borrowers
are in  proportion  to the  amounts  of their  respective  Payment  Shares,  the
Borrower making such  proportionately  smaller payment shall,  when permitted by
the preceding  sentence,  pay to the other Borrowers an amount such that the net
payments made by the Borrower in respect of the Bank Obligations shall be shared
among the Borrowers pro rata in proportion to their  respective  Payment Shares.
If any Borrower receives any payment that is greater in proportion to the amount
of its Payment Shares than the payments  received by the other  Borrowers are in
proportion  to the amounts of their  respective  Payment  Shares,  the  Borrower
receiving such  proportionately  greater  payment  shall,  when permitted by the
second  preceding  sentence,  pay to the other Borrowers an amount such that the
payments  received by the Borrowers shall be shared among the Borrowers pro rata
in proportion to their respective  Payment Shares.  Notwithstanding  anything to
the contrary  contained in this paragraph or in this Agreement,  no liability or
obligation of any Borrower that shall accrue pursuant to this paragraph shall be
paid nor shall it be deemed  owed  pursuant to this  paragraph  until all of the
Bank Obligations shall be finally paid in full in cash.

               For purposes  hereof,  the "Payment Share" of each Borrower shall
be the sum of (a) the  aggregate  proceeds of the Bank  Obligations  received by
such  Borrower  plus  (b) the  product  of (i) the  aggregate  Bank  Obligations
remaining  unpaid on the date such Bank  Obligations  become due and  payable in
full, whether by stated maturity, acceleration, or otherwise (the "Determination
Date") reduced by the amount of such Bank Obligations  attributed to all or such
Borrowers pursuant to clause (a) above, times (ii) a fraction,  the numerator of
which is such  Borrower's  net  worth on the  effective  date of this  Agreement
(determined as of the end of the immediately  preceding  fiscal reporting period
of such  Borrower),  and the  denominator of which is the aggregate net worth of
all Borrowers on such effective date.

                    (c) It is the  intent  of each  Borrower,  the Agent and the
Banks that each  Borrower's  maximum  Bank  Obligations  shall be in, but not in
excess of:

                         (i) in a case or  proceeding  commenced  by or  against
such Borrower under the  Bankruptcy  Code on or within one year from the date on
which any of the Bank  Obligations  are incurred,  the maximum amount that would
not  otherwise  cause the Bank  Obligations  (or any other  obligations  of such
Borrower to the Agent and the Banks) to be  avoidable or  unenforceable  against
such  Borrower  under (A)  Section 548 of the  Bankruptcy  Code or (B) any state
fraudulent transfer or fraudulent conveyance act or statute applied in such case
or proceeding by virtue of Section 544 of the Bankruptcy Code; or

                         (ii) in a case or  proceeding  commenced  by or against
such Borrower under the Bankruptcy  Code subsequent to one year from the date on
which any of the Bank  Obligations  are incurred,  the maximum amount that would
not  otherwise  cause the Bank  Obligations  (or any other  obligations  of such
Borrower to the Agent and the Banks) to be  avoidable or  unenforceable  against
such Borrower under any state fraudulent transfer or


CREDIT AGREEMENT                                                         Page 61





fraudulent  conveyance act or statute  applied in any such case or proceeding by
virtue of Section 544 of the Bankruptcy Code;

                         (iii) in a case or  proceeding  commenced by or against
such Borrower  under any law,  statute or regulation  other than the  Bankruptcy
Code  (including,  without  limitation,  any other  bankruptcy,  reorganization,
arrangement,  moratorium,  readjustment  of debt,  dissolution,  liquidation  or
similar debtor relief laws),  the maximum amount that would not otherwise  cause
the Bank Obligations (or any other obligations of such Borrower to the Agent and
the Banks) to be avoidable or  unenforceable  against such  Borrower  under such
law, statute or regulation including,  without limitation,  any state fraudulent
transfer or  fraudulent  conveyance  act or statute  applied in any such case or
proceeding.

                    (d) The  Borrowers  acknowledge  and  agree  that  they have
requested  that the Banks  make  credit  available  to the  Borrowers  with each
Borrower expecting to derive benefit, directly and indirectly, from the Advances
and other credit extended by the Banks to the Borrowers.

               10.17 Consents to Renewals,  Modifications  and Other Actions and
Events.  This Agreement and all of the  obligations  of the Borrowers  hereunder
shall  remain  in full  force  and  effect  without  regard  to and shall not be
released,  affected or impaired  by: (a) any  amendment,  assignment,  transfer,
modification  of or  addition  or  supplement  to  the  Bank  Obligations,  this
Agreement,  any Note or any other Loan Document; (b) any extension,  indulgence,
increase in the Bank  Obligations  or other action or inaction in respect of any
of the Loan Documents or otherwise with respect to the Bank Obligations,  or any
acceptance  of security for, or guaranties  of, any of the Bank  Obligations  or
Loan Documents, or any surrender, release, exchange, impairment or alteration of
any such  security or guaranties  including  without  limitation  the failing to
perfect a security  interest  in any such  security  or  abstaining  from taking
advantage or of realizing upon any  guaranties or upon any security  interest in
any such  security;  (c) any default by any Borrower  under,  or any lack of due
execution,  invalidity  or  unenforceability  of, or any  irregularity  or other
defect in, any of the Loan  Documents;  (d) any waiver by the Banks or any other
person of any required  performance  or otherwise of any condition  precedent or
waiver of any requirement  imposed by any of the Loan Documents,  any guaranties
or  otherwise  with  respect  to the  Bank  Obligations;  (e)  any  exercise  or
non-exercise  of any  right,  remedy,  power or  privilege  in  respect  of this
Agreement or any of the other Loan Documents;  (f) any sale, lease,  transfer or
other  disposition of the assets of any Borrower or any  consolidation or merger
of any Borrower with or into any other person,  corporation,  or entity,  or any
transfer or other  disposition by any Borrower or any other holder of any shares
of capital stock of any Borrower; (g) any bankruptcy, insolvency, reorganization
or similar proceedings  involving or affecting any Borrower;  (h) the release or
discharge of any Borrower from the  performance  or observance of any agreement,
covenant,  term or condition  under any of the Bank  Obligations or contained in
any of the Loan  Documents by  operation of law; or (i) any other cause  whether
similar or dissimilar to the foregoing  which, in the absence of this provision,
would  release,  affect or impair the  obligations,  covenants,  agreements  and
duties of any Borrower hereunder,


CREDIT AGREEMENT                                                        Page 62





including  without  limitation any act or omission by the Agent,  or the Bank or
any other any person which increases the scope of such  Borrower's  risk; and in
each case  described in this  paragraph  whether or not any Borrower  shall have
notice  or  knowledge  of any of the  foregoing,  each of which is  specifically
waived by each Borrower.  Each Borrower warrants to the Agent and the Banks that
it has adequate means to obtain from each other  Borrower on a continuing  basis
information concerning the financial condition and other matters with respect to
the  Borrowers  and that it is not  relying on the Agent or the Banks to provide
such information either now or in the future.

               10.18 Waivers,  Etc. Each Borrower  unconditionally  waives:  (a)
notice of any of the matters referred to in Section 10.17 above; (b) all notices
which may be required  by  statute,  rule or law or  otherwise  to preserve  any
rights of the Agent or the Banks including,  without limitation,  presentment to
and demand of payment or  performance  from the other  Borrowers and protect for
non-payment or dishonor; (c) any right to the exercise by the Agent or the Banks
of any right,  remedy,  power or  privilege in  connection  with any of the Loan
Documents;  (d) any requirement  that the Agent or the Banks in the event of any
default by any  Borrower,  first make  demand  upon or seek to enforce  remedies
against,  such Borrower or any other Borrower before demanding  payment under or
seeking to enforce this Agreement  against any other Borrower;  (f) any right to
notice of the  disposition of any security which the Agent or the Banks may hold
from any  Borrower  or  otherwise  and any  right to  object  to the  commercial
reasonableness  of the disposition of any such security;  and (g) all errors and
omissions in connection with the Agent's or any Bank's  administration of any of
the Bank Obligations, any of the Loan Documents, or any other act or omission of
the Agent or any Bank which changes the scope of the Borrower's risk,  except as
a result of the gross negligence or willful misconduct of the Agent or any Bank.
The  obligations  of each  Borrower  hereunder  shall be  complete  and  binding
forthwith  upon the  execution  of this  Agreement  and subject to no  condition
whatsoever, precedent or otherwise, and notice of acceptance hereof or action in
reliance hereon shall not be required.

               10.19  Confidentiality.  The Banks and the Agent  shall  hold all
confidential information obtained pursuant to the requirements of this Agreement
which has been identified as such by any Borrower or any Guarantor in accordance
with their customary  procedures for handling  confidential  information of this
nature and in accordance with safe and sound banking  practices and in any event
may make disclosure to its examiners,  affiliates, outside auditors, counsel and
other  professional  advisors in connection with this Agreement or as reasonably
required by any bona fide  transferee  or  participant  in  connection  with the
contemplated  transfer  of any Note or  participation  therein or as required or
requested by any governmental  agency or  representative  thereof or pursuant to
legal process.  Without limiting the foregoing,  it is expressly understood that
such confidential  information shall not include  information which, at the time
of disclosure is in the public domain or, which after  disclosure,  becomes part
of the public domain or  information  which is obtained by any Bank or the Agent
had obtained prior to the time of disclosure and identification by any Borrowers
or any Guarantor under this Section, or information  received by any Bank or the
Agent from a third party. Nothing in this


CREDIT AGREEMENT                                                        Page 63




Section or otherwise  shall  prohibit any Bank or the Agent from  disclosing any
confidential  information  to the other Banks or the Agent or render any of them
liable in connection with any such disclosure.

               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be duly executed and delivered as of this 1st day of May,  1996,  which shall
be the Effective Date of this Agreement.

Address for Notices:
                                        COMSTOCK RESOURCES, INC.

                                        By: /s/ M. JAY ALLISON
5005 LBJ Freeway, Suite 1000            ----------------------
Dallas, Texas  75244                    M. Jay Allison, its president and chief
Attention: M. Jay Allison                    executive officer
Telephone:  (214) 701-2000
Telecopy:   (214) 701-2111


Address for Notices:
                                        COMSTOCK OIL & GAS, INC.


                                        By: /s/ M. JAY ALLISON
5005 LBJ Freeway, Suite 1000            ----------------------
Dallas, Texas  75244                    M. Jay Allison, its president and chief
Attention: M. Jay Allison                    executive officer
Telephone:  (214) 701-2000
Telecopy:   (214) 701-2111


Address for Notices:
                                        COMSTOCK OIL & GAS - LOUISIANA, INC.

                                        By: /s/ M. JAY ALLISON
                                        ----------------------
5005 LBJ Freeway, Suite 1000
Dallas, Texas  75244                    M. Jay Allison, its president and chief
Attention: M. Jay Allison                    executive officer
Telephone:  (214) 701-2000
Telecopy:   (214) 701-2111



CREDIT AGREEMENT                                                        Page 64





                                        COMSTOCK OFFSHORE ENERGY, INC.

5005 LBJ Freeway, Suite 1000            By: M. Jay Allison
Dallas, Texas  75244                    -----------------------
Attention: M. Jay Allison               M. Jay Allison, its president and chief
Telephone:  (214) 701-2000                   executive officer
Telecopy:   (214) 701-2111


One First National Plaza                THE FIRST NATIONAL BANK OF CHICAGO,
Suite 0362                                    as a Bank and as Agent
Chicago, Illinois  60670
Attention: Andrew Bateman                By: /s/CARL SKOOG
Telephone No: (312) 732-8011             ---------------------
Facsimile No: (312) 732-3055             Its: Second vice president
Commitment Amount:  $85,829,545.46
Bridge Loan Amount: $5,170,454.54
Pro Rata Share: 51.7045%


1717 Main Street                         BANK ONE, TEXAS, NA,
Dallas, Texas 75201                           as a Bank and as Co-Agent
Attention: Mark Cranmer                  By: /s/MARK CRANMER     
Telephone No: (214) 290-2212             ---------------------
Facsimile No: (214) 290-2627
Commitment Amount:  $80,170,454.54
Bridge Loan Amount: $4,829,545.46
Pro Rata Share: 48.2955%





CREDIT AGREEMENT                                                        Page 65




                          CONSENT AND ACKNOWLEDGEMENT

               Each of the  undersigned  Guarantors  is  hereby  executing  this
Agreement for the purpose of agreeing to all of the terms and provisions  hereof
applicable to it, and making the  representaions  and warranties  applicable to
it.

               IN WITNESS WHEREOF,  the undersigned  Guarantors have caused this
Agreement to be duly executed and delivered as of this 1st day of May, 1996.


                                        COMSTOCK MANAGEMENT CORPORATION

                                        By:/s/M. JAY ALLISON
                                        --------------------
                                        M. Jay Allsion, its president and chief
                                             executive officer


                                        COMSTOCK NATURAL GAS, INC.

                                        By:/s/ROLAND O. BURNS
                                        ----------------------
                                        Roland O. Burns, its senior vice-
                                        president and chief financial officer


CREDIT AGREEMENT                                                        Page 66