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Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]  
Information Related to Asset Retirement Obligations

The following table reflects information related to our asset retirement obligations:

 

Balance at December 31, 2013

   $ 200,831   

Additions to asset retirement obligations

     584   

Accretion expense

     1,425   

Liabilities settled

     (693
  

 

 

 

Balance at March 31, 2014

   $ 202,147