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Asset Retirement Obligations
9 Months Ended
Sep. 30, 2013
Asset Retirement Obligation Disclosure [Abstract]  
ASSET RETIREMENT OBLIGATIONS
ASSET RETIREMENT OBLIGATIONS
The following table summarizes the changes in the Company’s asset retirement obligations for the nine months ended September 30, 2013 (in thousands).
 
 
Beginning asset retirement obligations
$
5,769

Liabilities incurred during period
417

Liabilities settled during period
(57
)
Revisions in estimated cash flows
533

Accretion expense
248

Ending asset retirement obligations
6,910

Less: current asset retirement obligations(1)
(763
)
Long-term asset retirement obligations
$
6,147


 _______________
(1) 
Included in accrued liabilities in the Company’s unaudited condensed consolidated balance sheet at September 30, 2013.