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合并资产负债表 (Parenthetical) (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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| 合并资产负债表 [Abstract] | ||
| Capitalized costs of oil and natural gas properties excluded from amortization | $ 138,623,000 | $ 16,778,000 |
| 优先股，票面价值 | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized | 5,000,000 | 5,000,000 |
| Preferred Stock, Dividend Rate, Percentage | 12.00% | 12.00% |
| 12% cumulative preferred stock, shares authorized | 30,000 | 30,000 |
| Preferred stock Series A, issued | 0 | 0 |
| Preferred stock Series A, outstanding | 0 | 0 |
| 普通股，票面价值 | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 100,000,000 | 100,000,000 |
| 普通股，已发行股票 | 55,621,371 | 44,645,435 |
| Common stock, shares outstanding | 55,621,371 | 44,645,435 |
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——定义
The sum of the capitalized costs incurred, 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
Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
一个实体的章程和章程允许发行的普通股的最大数量. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
已出售或授予股东的普通股总数（包括已发行的普通股）, 回购 留在国库). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. 流通在外的股票等于已发行的股票减去持有的库存股票和其他调整（如果有的话）. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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| X |
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——定义
Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
一个实体的章程和章程允许发行的不可赎回优先股（或完全由发行人选择可赎回的优先股）的最大数量. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
已发行给股东的不可赎回优先股（或完全由发行人选择可赎回的优先股）总数（包括已发行的相关优先股）, 回购, 留在国库). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——定义
股东持有的所有不可赎回优先股（或按发行人的选择完全赎回的优先股）的总股数. Does not include preferred shares that have been 回购. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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——细节
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——定义
一个实体的章程和章程允许发行的被归类为临时股权的证券的最大数量. 临时股权体育平台是一种不受发行人控制的具有赎回特征的证券, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. 包括以固定或可确定的价格或在固定或可确定的日期赎回的任何类型的证券, is redeemable at the option of the holder, 或者具有不完全在发行人控制范围内的赎回条件. 如果兑换, 如果持有人行使将股票转换为另一种类型的股权的期权，发行人无法控制发行根据转换期权可能需要交付的最大数量的股票所需的行动或事件. If the security is a warrant or a rights issue, 如果发行人不能证明其在所有情况下都有能力在持有人行使期权后交付，则认股权证或配股将被视为临时股权. 包括由员工持股计划持有的有看跌期权的股票，以及只有在发行人的控制权发生变化时，持有人才能赎回的股票. 参考文献1:http://www.xbrl.org/2003/role/presentationRef
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