0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Long-Term Debt link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Commitment and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Net Income Per Share link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Supplemental Cash Flow Information link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Business Segment Information link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Risk Management Activities link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Asset Retirement Obligations link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Acquisitions and Divestitures link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Employee Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Net Income Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Supplemental Cash Flow Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Business Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Risk Management Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Asset Retirement Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Acquisitions and Divestitures (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Stockholders' Equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Employee Benefit Plans - Schedule of Stock- Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Employee Benefit Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Employee Benefit Plans - Schedule of Restricted Stock and Restricted Stock Unit Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Employee Benefit Plans - Schedule of Performance Unit and Performance Stock Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Net Income Per Share - Schedule of Computation of Net Income Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Net Income Per Share - Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Supplemental Cash Flow Information - Schedule of Net Cash Paid For Interest and Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Supplemental Cash Flow Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Business Segment Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Business Segment Information - Schedule of Selected Financial Information by Reportable Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Risk Management Activities - Schedule of Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Risk Management Activities - Schedule of Outstanding Financial Commodity and Other Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Risk Management Activities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Fair Value Measurements - Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Asset Retirement Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Acquisitions and Divestitures - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Acquisitions and Divestitures - Schedule of Business Combination, Recognized Asset Acquired and Liability Assumed (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Acquisitions and Divestitures - Schedule of Business Combination, Pro Forma Information (Details) link:presentationLink link:calculationLink link:definitionLink