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重要会计政策摘要 (Narrative) (Details) (USD $)
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12个月结束 | |
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12月. 31, 2011
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12月. 31, 2010
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| 重要会计政策摘要 [Line Items] | ||
| 未来净收入，贴现率上限测试 | 10.00% | |
| Capitalized costs of oil and natural gas properties excluded from amortization | $ 138,623,000 | $ 16,778,000 |
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最大(成员)
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| 重要会计政策摘要 [Line Items] | ||
| 财产和设备的使用寿命，最长，年 | 30 | |
| Percentage of investments accounted under equity method | 50.00% | |
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最低(成员)
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| 重要会计政策摘要 [Line Items] | ||
| 财产和设备的使用寿命，至少，年 | 3 | |
| Percentage of investments accounted under equity method | 20.00% |
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——细节
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——定义
发生的资本化成本的总和, 至资产负债表日止, of unproved properties excluded from amortization including acquisition costs, 勘探成本, 开发成本, 生产成本. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
最大使用寿命长, physical assets used in the normal conduct of business and not intended for resale. 例子包括土地, 建筑, 机械设备, and other types of furniture and equipment including, 但不限于, 办公设备, 家具及固定装置, 以及计算机设备和软件. 没有定义.
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——定义
最小使用寿命长, physical assets used in the normal conduct of business and not intended for resale. 例子包括土地, 建筑, 机械设备, and other types of furniture and equipment including, 但不限于, 办公设备, 家具及固定装置, 以及计算机设备和软件. 没有定义.
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