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Asset Retirement Obligations
 9 Months Ended
Sep. 30, 2015
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations
Asset Retirement Obligations
The following table reflects the changes in the Company’s ARO during the nine months ended September 30, 2015:
 
(In thousands)
Balance at December 31, 2014
$
42,549

Liabilities incurred during period
1,233

Liabilities settled during period
(112
)
Accretion expense during period(1)
1,654

Revisions to estimates
241

Balance at September 30, 2015
$
45,565

___________________
(1)
Included in depreciation, depletion and amortization on the Company’s Condensed Consolidated Statement of Operations.
At September 30, 2015, the current portion of the total ARO balance was approximately $0.6 million and is included in accrued liabilities on the Company’s Condensed Consolidated Balance Sheet.