Annual report pursuant to Section 13 and 15(d)

物业及设备(物业及设备一览表)(详情)

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财产与设备(财产与设备明细表)(详细信息)(美元)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Abstract]    
Oil and natural gas properties, full-cost accounting $ 2,477,178 $ 1,611,090
Office furniture and fixtures 6,093 4,476
Building 4,626 3,926
Land 412 260
Total property and equipment 2,488,309 1,619,752
累积损耗、折旧、摊销及减值 (784,717) (665,884)
Property and equipment, net $ 1,703,592 $ 953,868