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Document and Entity Information
Financial Statements
CONSOLIDATED BALANCE SHEETS
CONSOLIDATED BALANCE SHEETS (Parenthetical)
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
Notes to Financial Statements
Summary of Organization and Nature of Business
Basis of Presentation
New Accounting Standards
Acquisitions and Dispositions
Income Taxes
(Loss) Income Per Common Share
Suspended Exploratory Well Costs
Indebtedness
Asset Retirement Obligations
Capital Stock
Derivative Activities
Fair Value Measurements
Stock-Based Compensation Plans
Supplemental Cash Flow Information
Commitments and Contingencies
Office Closing and Termination Costs
Capitalized Costs and Accumulated Depreciation, Depletion and Amortization
Costs Incurred for Property Acquisition, Exploration and Development
Notes Tables
Income Taxes (Tables)
(Loss) Income Per Common Share (Tables)
Suspended Exploratory Well Costs (Tables)
Indebtedness (Tables)
Asset Retirement Obligations (Tables)
Capital Stock (Tables)
Derivative Activities (Tables)
Fair Value Measurements (Tables)
Stock-Based Compensation Plans (Tables)
Supplemental Cash Flow Information (Tables)
Office Closing and Termination Costs (Tables)
Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (Tables)
Costs Incurred for Property Acquisition, Exploration and Development (Tables)
Notes Details
Acquisitions and Dispositions - Additional Information (Detail)
Income Taxes - Income Tax (Benefit) Expense (Detail)
Income Taxes - Additional Information (Detail)
(Loss) Income Per Common Share - Computations of Basic and Diluted (Loss) Income Per Common Share (Detail)
(Loss) Income Per Common Share - Basic Weighted Average Common Shares Outstanding to Diluted Weighted Average Common Shares Outstanding (Detail)
(Loss) Income Per Common Share - Additional Information (Detail)
Suspended Exploratory Well Costs - Additional Information (Detail)
Suspended Exploratory Well Costs - Suspended Exploratory Well Costs (Detail)
Indebtedness - Additional Information (Detail)
Indebtedness - Debt Outstanding (Detail)
Indebtedness - Debt Outstanding (Parenthetical) (Detail)
Indebtedness - Bank Debt - Additional Information (Detail)
Indebtedness - Senior Notes - Additional Information (Detail)
Indebtedness - Senior Subordinated Notes - Additional Information (Detail)
Indebtedness - Guarantees and Debt Covenants - Additional Information (Detail)
Asset Retirement Obligations - Asset Retirement Obligations (Detail)
Capital Stock - Additional Information (Detail)
Capital Stock (Detail)
Derivative Activities - Additional Information (Detail)
Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Detail)
Derivative Activities - Schedule of Additional Information Related to Master Netting Arrangements with Derivative Counterparties (Detail)
Derivative Activities - Effects of Non-Hedge Derivatives on Consolidated Statement of Operations (Detail)
Fair Value Measurements - Fair Value Hierarchy Table for Assets and Liabilities Measured at Fair Value (Detail)
Fair Value Measurements - Additional Information (Detail)
Fair Value Measurements - Value of Assets Measured at Fair Value on Non Recurring Basis (Detail)
Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Detail)
Fair Value Measurements - Carrying Amounts and Fair Values of Financial Instruments (Parenthetical) (Detail)
Stock-Based Compensation Plans - Additional Information (Detail)
Stock-Based Compensation Plans - Allocation of Stock-Based Compensation by Functional Category (Detail)
Stock-Based Compensation Plans - PSUA Activities (Detail)
Stock-Based Compensation Plans - PSUA Activities (Parenthetical) (Detail)
Stock-Based Compensation Plans - Valuation Assumptions for Grant Date Fair Value of Performance Awards (Detail)
Stock-Based Compensation Plans - Additional Information 1 (Detail)
Stock-Based Compensation Plans - Additional Information 2 (Detail)
Stock-Based Compensation Plans - Restricted Stock and Restricted Stock Units Outstanding (Detail)
Stock-Based Compensation Plans - Stock Option and SARs Activities (Detail)
Stock-Based Compensation Plans - Additional Information 3 (Detail)
Supplemental Cash Flow Information - Supplemental Cash Flow Information (Detail)
Commitments and Contingencies - Additional Information (Detail)
Office Closing and Termination Costs - Additional Information (Detail)
Office Closing and Termination Costs - Summary of Termination Costs (Detail)
Office Closing and Termination Costs - Exit Costs Included in Accrued Liabilities in Consolidated Balance Sheet (Detail)
Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (Detail)
Costs Incurred for Property Acquisition, Exploration and Development (Detail)
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