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Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:calculationLink link:presentationLink link:definitionLink 100080 - Disclosure - Summary of Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 100090 - Disclosure - Acquisitions and Dispositions of Oil and Gas Properties link:calculationLink link:presentationLink link:definitionLink 100100 - Disclosure - Oil and Gas Producing Activities link:calculationLink link:presentationLink link:definitionLink 100110 - Disclosure - Long-term Debt link:calculationLink link:presentationLink link:definitionLink 100120 - Disclosure - Commitments and Contingencies link:calculationLink link:presentationLink link:definitionLink 100130 - Disclosure - Stockholders' Equity link:calculationLink link:presentationLink link:definitionLink 100140 - Disclosure - Stock-based Compensation link:calculationLink link:presentationLink link:definitionLink 100150 - Disclosure - Retirement Plan link:calculationLink link:presentationLink link:definitionLink 100160 - 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Disclosure - Summary of Significant Accounting Policies - Basic and Diluted Earnings Per Share (Detail) link:calculationLink link:presentationLink link:definitionLink 100380 - Disclosure - Summary of Significant Accounting Policies - Weighted Average Shares of Unvested Restricted Stock (Detail) link:calculationLink link:presentationLink link:definitionLink 100390 - Disclosure - Summary of Significant Accounting Policies - Common Stock Stock Options Excluded as Anti-Dilutive from Determination of Diluted Earnings Per Share (Detail) link:calculationLink link:presentationLink link:definitionLink 100400 - Disclosure - Summary of Significant Accounting Policies - Cash Payments Made for Interest and Income Taxes (Detail) link:calculationLink link:presentationLink link:definitionLink 100410 - Disclosure - Summary of Significant Accounting Policies - Comprehensive Income (Loss) (Detail) link:calculationLink link:presentationLink link:definitionLink 100420 - Disclosure - Summary of Significant Accounting Policies - Comprehensive Income (Loss) (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 100430 - Disclosure - Summary of Significant Accounting Policies - Accumulated Other Comprehensive Income, Net of Income Taxes (Detail) link:calculationLink link:presentationLink link:definitionLink 100440 - Disclosure - Summary of Significant Accounting Policies - Additional Information 1 (Detail) link:calculationLink link:presentationLink link:definitionLink 100450 - Disclosure - Summary of Significant Accounting Policies - Additional Information 2 (Detail) link:calculationLink link:presentationLink link:definitionLink 100460 - Disclosure - Summary of Significant Accounting Policies - Additional Information 3 (Detail) link:calculationLink link:presentationLink link:definitionLink 100470 - Disclosure - Summary of Significant Accounting Policies - Additional Information 4 (Detail) link:calculationLink link:presentationLink link:definitionLink 100480 - Disclosure - Acquisitions and Dispositions of Oil and Gas Properties - 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Disclosure - Supplementary Quarterly Financial Data (Unaudited) - Schedule of Supplementary Quarterly Financial Data (Detail) link:calculationLink link:presentationLink link:definitionLink 100750 - Disclosure - Supplementary Quarterly Financial Data (Unaudited) - Summary of Results of Continuing Operations from Non-Routine Items (Detail) link:calculationLink link:presentationLink link:definitionLink 100760 - Disclosure - Oil and Gas Reserves Information (Unaudited) - Summary of Changes in Net Quantities of Crude Oil and Natural Gas Reserves For Continuing Operations (Detail) link:calculationLink link:presentationLink link:definitionLink 100770 - Disclosure - Oil and Gas Reserves Information (Unaudited) - Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves (Detail) link:calculationLink link:presentationLink link:definitionLink 100780 - Disclosure - Oil and Gas Reserves Information (Unaudited) - Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves (Detail) link:calculationLink link:presentationLink link:definitionLink 100790 - Disclosure - Oil and Gas Reserves Information (Unaudited) - Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 100800 - Disclosure - Oil and Gas Reserves Information (Unaudited) - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink