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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2011
Accrued Liabilities [Abstract] |
Components Of Accrued Liabilities |
|  |  | September 30, |  |  |  | September 30, |
|  | December 31, |
|  | 2011 |  |  | 2010 |
|  | (In thousands) |
Accrued capital costs |  | $ | 106,405 |  |  | $ | 49,935 |
Accrued lease operating expenses |  |  | 7,794 |  |  |  | 3,305 |
Accrued general and administrative expenses |  |  | 3,397 |  |  |  | 3,014 |
Other accrued liabilities |  |  | 2,096 |  |  |  | 1,985 |
Total accrued liabilities |  | $ | 119,692 |  |  | $ | 58,239 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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