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1002002 - Statement - Consolidated Balance Sheets
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1004004 - Statement - Consolidated Statements of Operations
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2101101 - Disclosure - Organization and Nature of Operations
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2402401 - Disclosure - Organization and Nature of Operations (Details)
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2103102 - Disclosure - Basis of Presentation
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2105103 - Disclosure - Divestitures, Decommissioning and Restructuring Activities
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2115105 - Disclosure - Derivative Financial Instruments
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2121106 - Disclosure - Exploratory Costs
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2125107 - Disclosure - Long-term Debt
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2138110 - Disclosure - Commitments and Contingencies
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2142111 - Disclosure - Related Party Transactions
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2145112 - Disclosure - Revenue Recognition
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2155115 - Disclosure - Income Taxes
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2160116 - Disclosure - Net Income Per Share
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2165117 - Disclosure - Subsequent Events
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