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Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2013
Asset Retirement Obligations  
Schedule of reconciliation of asset retirement obligations included in other long-term liabilities

The following is a reconciliation of the Company’s asset retirement obligations, included in other long-term liabilities on the condensed consolidated balance sheets, for the nine months ended September 30, 2013 (in thousands):

 

Asset retirement obligations — beginning of period

 

$

10,552

 

Obligations incurred

 

69

 

Accretion expense

 

797

 

Asset retirement obligations — end of period

 

$

11,418