XML 72 R22.htm IDEA: XBRL DOCUMENT v2.4.0.8
Oil and natural gas properties (Tables)
12 Months Ended
Dec. 31, 2012
Oil And Natural Gas Properties Tables  
Components of Oil and Natural Gas Properties

Oil and natural gas properties are comprised of the following:

 

    December 31,  
    2012     2011  
Oil and natural gas properties   $ 776,317     $ 101,259  
Drilling and work in process     208,728       268,436  
Proved property - purchased gas wells     3,130,100       3,130,100  
Proved property - drilled gas wells     1,753,026       1,753,026  
Producing oil wells     400,535       222,598  
Total oil and natural gas properties, at cost     6,268,706       5,475,419  
Less: accumulated impairment     (3,685,202 )     (3,340,849 )
Oil and natural gas properties, net impairment     2,583,504       2,134,570  
Less: accumulated depletion     (1,145,514 )     (1,099,211 )
Oil and natural gas properties, net     1,437,990       1,035,359