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重大会计政策摘要（叙述性）（详情）（美元）
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12 Months Ended | |
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Dec. 31, 2011
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Dec. 31, 2010
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| 重要会计政策摘要〔分项〕 | ||
| Future net revenues, discount rate for ceiling test | 10.00% | |
| 不包括摊销的石油和天然气资产的资本化成本 | $ 138,623,000 | $ 16,778,000 |
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Maximum [Member]
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| 重要会计政策摘要〔分项〕 | ||
| Property and equipment useful lives, maximum, years | 30 | |
| 按权益法核算的投资百分比 | 50.00% | |
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Minimum [Member]
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| 重要会计政策摘要〔分项〕 | ||
| Property and equipment useful lives, minimum, years | 3 | |
| 按权益法核算的投资百分比 | 20.00% |
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- Definition
Future net revenues, discount rate for ceiling test. No definition available.
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- Details
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- Definition
The sum of the capitalized costs incurred, as of the balance sheet date, 不包括购置成本在内的未经证实的资产, exploration costs, development costs, and production costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
在权益会计法下，被投资方持有普通股或参股的比例. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The maximum useful life of long-lived, 用于正常经营活动而不打算转售的实物资产. Examples include land, buildings, machinery and equipment, 以及其他类型的家具和设备，包括, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. No definition available.
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- Definition
The minimum useful life of long lived, 用于正常经营活动而不打算转售的实物资产. Examples include land, buildings, machinery and equipment, 以及其他类型的家具和设备，包括, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. No definition available.
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