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Impairments (Tables)
6 Months Ended
Jun. 30, 2011
Summary of Impairment Charges
The following table summarizes impairment charges recorded during the periods presented:

   
Three Months Ended June 30,
   
Six Months Ended June 30,
 
   
2011
   
2010
   
2011
   
2010
 
Oil and gas properties
  $ 71,071     $ -     $ 71,071     $ -  
Other
    -       1,124       -       1,124  
    $ 71,071     $ 1,124     $ 71,071     $ 1,124