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Impairments
6 Months Ended
Jun. 30, 2011
Impairments
14.    Impairments
 
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  
 
During the three months ended June 30, 2011, we recognized an impairment of our Arkoma Basin assets which was triggered by the expected disposition of these high-cost gas properties in the third quarter of 2011. As disclosed in Note 3, we executed an agreement to sell these properties in July 2011.