XML 58 R14.htm IDEA: XBRL DOCUMENT v2.4.0.6
Asset Retirement Obligations
9 Months Ended
Sep. 30, 2012
Asset Retirement Obligations

8. Asset Retirement Obligations

The following table reflects the changes in the Company’s ARO during the nine months ended September 30, 2012:

 

     (In thousands)  

Balance at December 31, 2011

   $ 13,075   

Liabilities incurred during period

     5,388   

Liabilities settled during period

     (42

Accretion expense during period (1)

     612   

Revisions to estimates

     1,774   
  

 

 

 

Balance at September 30, 2012

   $ 20,807   
  

 

 

 

 

(1) Included in depreciation, depletion and amortization on the Company’s Condensed Consolidated Statement of Operations.

The revisions to estimates were primarily due to changes in the estimated useful lives of certain wells. At September 30, 2012, the current portion of the total ARO balance was approximately $0.3 million and is included in accrued liabilities on the Company’s Condensed Consolidated Balance Sheet.