100000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 100010 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 100020 - Disclosure - Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (Detail) 2 link:presentationLink link:calculationLink link:definitionLink 100030 - Disclosure - Exit and Termination Costs - Summary of Exit and Termination Costs (Detail) 2 link:presentationLink link:calculationLink link:definitionLink 100040 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 100050 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 100060 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) link:presentationLink link:calculationLink link:definitionLink 100070 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 100080 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) link:presentationLink link:calculationLink link:definitionLink 100090 - Disclosure - Summary of Organization and Nature of Business link:presentationLink link:calculationLink link:definitionLink 100100 - Disclosure - Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 100110 - Disclosure - New Accounting Standards link:presentationLink link:calculationLink link:definitionLink 100120 - Disclosure - Revenues from Contracts with Customers link:presentationLink link:calculationLink link:definitionLink 100130 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 100140 - Disclosure - Income (Loss) Per Common Share link:presentationLink link:calculationLink link:definitionLink 100150 - Disclosure - Capitalized Costs and Accumulated Depreciation, Depletion and Amortization link:presentationLink link:calculationLink link:definitionLink 100160 - Disclosure - Indebtedness link:presentationLink link:calculationLink link:definitionLink 100170 - Disclosure - Asset Retirement Obligations link:presentationLink link:calculationLink link:definitionLink 100180 - Disclosure - Derivative Activities link:presentationLink link:calculationLink link:definitionLink 100190 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 100200 - Disclosure - Stock-based Compensation Plans link:presentationLink link:calculationLink link:definitionLink 100210 - Disclosure - Exit and Termination Costs link:presentationLink link:calculationLink link:definitionLink 100220 - Disclosure - Capital Stock link:presentationLink link:calculationLink link:definitionLink 100230 - Disclosure - Supplemental Cash Flow Information link:presentationLink link:calculationLink link:definitionLink 100240 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 100250 - Disclosure - Suspended Exploratory Well Costs link:presentationLink link:calculationLink link:definitionLink 100260 - Disclosure - Costs Incurred for Property Acquisition, Exploration and Development link:presentationLink link:calculationLink link:definitionLink 100270 - Disclosure - Basis of Presentation (Policies) link:presentationLink link:calculationLink link:definitionLink 100280 - Disclosure - Revenues from Contracts with Customers (Tables) link:presentationLink link:calculationLink link:definitionLink 100290 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 100300 - Disclosure - Income (Loss) Per Common Share (Tables) link:presentationLink link:calculationLink link:definitionLink 100310 - Disclosure - Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (Tables) link:presentationLink link:calculationLink link:definitionLink 100320 - Disclosure - Indebtedness (Tables) link:presentationLink link:calculationLink link:definitionLink 100330 - Disclosure - Asset Retirement Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 100340 - Disclosure - Derivative Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 100350 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 100360 - Disclosure - Stock-based Compensation Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 100370 - Disclosure - Exit and Termination Costs (Tables) link:presentationLink link:calculationLink link:definitionLink 100380 - Disclosure - Capital Stock (Tables) link:presentationLink link:calculationLink link:definitionLink 100390 - Disclosure - Supplemental Cash Flow Information (Tables) link:presentationLink link:calculationLink link:definitionLink 100400 - Disclosure - Suspended Exploratory Well Costs (Tables) link:presentationLink link:calculationLink link:definitionLink 100410 - Disclosure - Costs Incurred for Property Acquisition, Exploration and Development (Tables) link:presentationLink link:calculationLink link:definitionLink 100420 - Disclosure - Revenues from Contracts with Customers - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100430 - Disclosure - Revenues from Contracts with Customers - Disaggregation of Revenue by Identified Revenue Stream (Detail) link:presentationLink link:calculationLink link:definitionLink 100440 - Disclosure - Revenues from Contracts with Customers - Disaggregation of Revenue by Identified Revenue Stream (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 100450 - Disclosure - Income (Loss) Per Common Share - Computations of Basic and Diluted Income (Loss) Per Common Share (Detail) link:presentationLink link:calculationLink link:definitionLink 100460 - Disclosure - Income (Loss) Per Common Share - Basic Weighted Average Common Shares Outstanding and Diluted Weighted Average Common Shares Outstanding (Detail) link:presentationLink link:calculationLink link:definitionLink 100470 - Disclosure - Income (Loss) Per Common Share - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100480 - Disclosure - Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (Detail) link:presentationLink link:calculationLink link:definitionLink 100490 - Disclosure - Indebtedness - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100500 - Disclosure - Indebtedness - Debt Outstanding (Detail) link:presentationLink link:calculationLink link:definitionLink 100510 - Disclosure - Indebtedness - Debt Outstanding (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 100520 - Disclosure - Indebtedness - Bank Debt - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100530 - Disclosure - Indebtedness - New Senior Notes - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100540 - Disclosure - Indebtedness - Early Redemption - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100550 - Disclosure - Indebtedness - Senior Notes - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100560 - Disclosure - Indebtedness - Guarantees and Debt Covenants - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100570 - Disclosure - Asset Retirement Obligations - Asset Retirement Obligations (Detail) link:presentationLink link:calculationLink link:definitionLink 100580 - Disclosure - Derivative Activities - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100590 - Disclosure - Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Detail) link:presentationLink link:calculationLink link:definitionLink 100600 - Disclosure - Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 100610 - Disclosure - Derivative Activities - Schedule of Additional Information Related to Master Netting Arrangements with Derivative Counterparties (Detail) link:presentationLink link:calculationLink link:definitionLink 100620 - Disclosure - Derivative Activities - Effects of Derivatives on Consolidated Statements of Operations (Detail) link:presentationLink link:calculationLink link:definitionLink 100630 - Disclosure - Fair Value Measurements - Fair Value Hierarchy Table for Assets and Liabilities Measured at Fair Value (Detail) link:presentationLink link:calculationLink link:definitionLink 100640 - Disclosure - Fair Value Measurements - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100650 - Disclosure - Fair Value Measurements - Reconciliation of the Beginning and Ending Balances for Derivative Instruments Classified as Level 3 in the Fair Value Hierarchy (Detail) link:presentationLink link:calculationLink link:definitionLink 100660 - Disclosure - Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Detail) link:presentationLink link:calculationLink link:definitionLink 100670 - Disclosure - Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 100680 - Disclosure - Stock-based Compensation Plans - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100690 - Disclosure - Stock-based Compensation Plans - Allocation of Stock-Based Compensation by Functional Category (Detail) link:presentationLink link:calculationLink link:definitionLink 100700 - Disclosure - Stock-based Compensation Plans - Additional Information 1 (Detail) link:presentationLink link:calculationLink link:definitionLink 100710 - Disclosure - Stock-based Compensation Plans - Additional Information 2 (Detail) link:presentationLink link:calculationLink link:definitionLink 100720 - Disclosure - Stock-based Compensation Plans - Restricted Stock and Restricted Stock Units Outstanding (Detail) link:presentationLink link:calculationLink link:definitionLink 100730 - Disclosure - Stock-based Compensation Plans - Additional Information 3 (Detail) link:presentationLink link:calculationLink link:definitionLink 100740 - Disclosure - Stock-based Compensation Plans - Internal Performance Activities (Detail) link:presentationLink link:calculationLink link:definitionLink 100750 - Disclosure - Stock-based Compensation Plans - Internal Performance Activities (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 100760 - Disclosure - Stock-based Compensation Plans - Valuation Assumptions for Grant Date Fair Value of Performance Awards (Detail) link:presentationLink link:calculationLink link:definitionLink 100770 - Disclosure - Stock-based Compensation Plans - TSR - PSUs Activities (Detail) link:presentationLink link:calculationLink link:definitionLink 100780 - Disclosure - Stock-based Compensation Plans - TSR - PSUs Activities (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 100790 - Disclosure - Stock-based Compensation Plans - Additional Information 4 (Detail) link:presentationLink link:calculationLink link:definitionLink 100800 - Disclosure - Exit and Termination Costs - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100810 - Disclosure - Exit and Termination Costs - Summary of Exit and Termination Costs (Detail) link:presentationLink link:calculationLink link:definitionLink 100820 - Disclosure - Exit and Termination Costs - Exit and Termination Costs Included in Accrued Liabilities in Consolidated Balance Sheet - (Detail) link:presentationLink link:calculationLink link:definitionLink 100830 - Disclosure - Capital Stock - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100840 - Disclosure - Capital Stock - Schedule of Changes in Number of Common Shares Outstanding (Detail) link:presentationLink link:calculationLink link:definitionLink 100850 - Disclosure - Capital Stock - Schedule of Change in Treasury Shares (Detail) link:presentationLink link:calculationLink link:definitionLink 100860 - Disclosure - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100870 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100880 - Disclosure - Suspended Exploratory Well Costs - Schedule Of Changes In Capitalized Exploratory Well Costs (Detail) link:presentationLink link:calculationLink link:definitionLink 100890 - Disclosure - Costs Incurred for Property Acquisition, Exploration and Development (Detail) link:presentationLink link:calculationLink link:definitionLink