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Asset Retirement Obligations link:presentationLink link:calculationLink link:definitionLink 2410402 - Disclosure - Asset Retirement Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 2310301 - Disclosure - Asset Retirement Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 2102100 - Disclosure - Basis Of Presentation link:presentationLink link:calculationLink link:definitionLink 2402402 - Disclosure - Basis Of Presentation Basis of Presentation (Equity - Additional Paid in Capital) (Details) link:presentationLink link:calculationLink link:definitionLink 2402403 - Disclosure - Basis Of Presentation Basis of Presentation (Revision for Deferred Income Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 2402404 - Disclosure - Basis Of Presentation (Derivatives and Hedging) (Details) link:presentationLink link:calculationLink link:definitionLink 2202201 - Disclosure - Basis Of Presentation (Policies) link:presentationLink link:calculationLink link:definitionLink 2112100 - Disclosure - Commitments And Contingencies link:presentationLink link:calculationLink link:definitionLink 1001000 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1001501 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1004000 - Statement - Consolidated Statement Of Equity link:presentationLink link:calculationLink link:definitionLink 1004501 - Statement - Consolidated Statement Of Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1005000 - Statement - Consolidated Statements Of Cash Flows link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - Consolidated Statements Of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - Consolidated Statements Of Operations link:presentationLink link:calculationLink link:definitionLink 2109100 - Disclosure - 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Derivative Financial Instruments (Schedule Of Oil Derivative Contracts Volume And Weighted Average Prices) (Details) link:presentationLink link:calculationLink link:definitionLink 2309301 - Disclosure - Derivative Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 2105100 - Disclosure - Exploratory Costs link:presentationLink link:calculationLink link:definitionLink 2405402 - Disclosure - Exploratory Costs (Schedule Of Capitalized Exploratory Well And Project Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - Exploratory Costs (Tables) link:presentationLink link:calculationLink link:definitionLink 2106100 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 2406403 - Disclosure - Fair Value Measurements (Schedule Of Carrying Values And Financial Instruments Not Carried At Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 2116100 - Disclosure - Impairment link:presentationLink link:calculationLink link:definitionLink 2416401 - Disclosure - Impairment (Details) link:presentationLink link:calculationLink link:definitionLink 2111100 - Disclosure - Incentive Plans link:presentationLink link:calculationLink link:definitionLink 2411402 - Disclosure - Incentive Plans Incentive Plans (Stock-based compensation) (Details) link:presentationLink link:calculationLink link:definitionLink 2311301 - Disclosure - Incentive Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 2107100 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2407402 - Disclosure - Income Taxes (Schedule Of Income Tax (Provisions) Benefits Attributable To Income From Continuing Operations) (Details) link:presentationLink link:calculationLink link:definitionLink 2307301 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2114100 - Disclosure - Interest And Other Income link:presentationLink link:calculationLink link:definitionLink 2414402 - Disclosure - Interest And Other Income (Components Of Interest And Other Income) (Details) link:presentationLink link:calculationLink link:definitionLink 2314301 - Disclosure - Interest And Other Income (Tables) link:presentationLink link:calculationLink link:definitionLink 2108100 - Disclosure - Long-Term Debt link:presentationLink link:calculationLink link:definitionLink 2408401 - Disclosure - Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2113100 - Disclosure - Net Income (Loss) Per Share link:presentationLink link:calculationLink link:definitionLink 2413403 - Disclosure - Net Income (Loss) Per Share (Reconciliation Of Basic To Diluted Weighted Average Common Shares Outstanding) (Details) link:presentationLink link:calculationLink link:definitionLink 2413402 - Disclosure - Net Income (Loss) Per Share (Reconciliation Of Earnings Attributable To Common Stockholders, Basic And Diluted) (Details) link:presentationLink link:calculationLink link:definitionLink 2313301 - Disclosure - Net Income (Loss) Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 2101100 - Disclosure - Organization And Nature Of Operations link:presentationLink link:calculationLink link:definitionLink 2115100 - Disclosure - Other Expense link:presentationLink link:calculationLink link:definitionLink 2415402 - Disclosure - Other Expense (Schedule Of Components Of Other Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 2315301 - Disclosure - Other Expense (Tables) link:presentationLink link:calculationLink link:definitionLink 2117100 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 2417401 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink