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Asset Retirement Obligation
3 Months Ended
Mar. 31, 2012
Asset Retirement Obligation [Abstract]  
Asset Retirement Obligation

(7) Asset Retirement Obligation

     Our asset retirement obligations represent the estimated present value of the amount we will incur to plug, abandon and remediate our producing properties at the end of their productive lives in accordance with applicable laws. The following table summarizes the Company's Asset Retirement Obligation transactions for the three months ended March 31, 2012 (in thousands):

Balance December 31, 2011 $ 1,927  
 
Accretion expense   33  
Liabilities incurred   33  
Liabilities settled   (23 )
Balance March 31, 2012 $ 1,970