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Asset Retirement Obligations - Additional Information (Detail) (USD $)
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12 Months Ended | |
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Dec. 31, 2013
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Dec. 31, 2012
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| Asset Retirement Obligations [Line Items] | ||
| Reduction in asset retirement obligations | $ 81,543,000 | $ 112,827,000 |
| Reduction in asset retirement obligations including plug and abandon wells and facilities damaged by hurricane | 11,600,000 | 29,600,000 |
| Liabilities assumed through acquisition | 4,233,000 | 31,664,000 |
| Liabilities settled | (81,543,000) | (112,827,000) |
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Hurricane Ike
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| Asset Retirement Obligations [Line Items] | ||
| Revisions of estimated liabilities | 6,801,000 | (20,616,000) |
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All Other
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| Asset Retirement Obligations [Line Items] | ||
| Revisions of estimated liabilities | $ 37,779,000 | $ 74,075,000 |
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- Definition
Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the Increase or Decrease in the amount of the asset retirement obligation during the current period for changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Asset retirement obligations assumed as part of the purchase of property interests from third parties. The amount includes both short term and long term asset retirement obligations. No definition available.
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- Details
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- Definition
Reduction in asset retirement obligations including plug and abandon wells and facilities damaged by hurricane. No definition available.
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