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Disclosure - Acquisitions, Divestitures, Decommissioning and Restructuring Activities link:presentationLink link:calculationLink link:definitionLink 2310302 - Disclosure - Acquisitions, Divestitures, Decommissioning and Restructuring Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 2411405 - Disclosure - Acquisitions, Divestitures, Decommissioning and Restructuring Activities - Narrative (Acquisitions) (Details) link:presentationLink link:calculationLink link:definitionLink 2412406 - Disclosure - Acquisitions, Divestitures, Decommissioning and Restructuring Activities - Schedule of Assets Acquired and Liabilities Assumed (Details) link:presentationLink link:calculationLink link:definitionLink 2413407 - Disclosure - Acquisitions, Divestitures, Decommissioning and Restructuring Activities - Pro Forma Summary (Details) link:presentationLink link:calculationLink link:definitionLink 2414408 - Disclosure - Acquisitions, Divestitures, Decommissioning and Restructuring Activities - 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Disclosure - Derivative Financial Instruments link:presentationLink link:calculationLink link:definitionLink 2322304 - Disclosure - Derivative Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 2423413 - Disclosure - Derivative Financial Instruments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2424414 - Disclosure - Derivative Financial Instruments - Schedule of Oil Derivative Contracts Volume and Weighted Average Prices (Details) link:presentationLink link:calculationLink link:definitionLink 2425415 - Disclosure - Derivative Financial Instruments - Schedule of Gas Derivative Contracts Volume and Weighted Average Prices (Details) link:presentationLink link:calculationLink link:definitionLink 2426416 - Disclosure - Derivative Financial Instruments - Schedule of Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 2427417 - Disclosure - Derivative Financial Instruments - 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Disclosure - Incentive Plans link:presentationLink link:calculationLink link:definitionLink 2341307 - Disclosure - Incentive Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 2442426 - Disclosure - Incentive Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2443427 - Disclosure - Incentive Plans - Schedule of Deferred Compensation and 401(k) Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2444428 - Disclosure - Incentive Plans - Schedule of Number Of Shares Available Under The Company's Long Term Incentive Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2445429 - Disclosure - Incentive Plans - Schedule Of Employee Stock Purchase Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2446430 - Disclosure - Incentive Plans - Schedule of Compensation Expense for Each Type of Incentive Award (Details) link:presentationLink link:calculationLink link:definitionLink 2447431 - 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