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Asset Retirement Obligations
 9 Months Ended
Sep. 30, 2016
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, 2016:
 
(In thousands)
Balance at December 31, 2015
$
35,812

Liabilities incurred during period
465

Liabilities settled during period(1)
(444
)
Accretion expense during period(2)
1,425

Revisions to estimates
571

Balance at September 30, 2016
$
37,829

___________________
(1)
Liabilities settled during the nine months ended September 30, 2016 included ARO related to the sold properties (see Note 7 – Divestiture).
(2)
Included in depreciation, depletion and amortization on the Company’s Condensed Consolidated Statement of Operations.
At September 30, 2016, the current portion of the total ARO balance was approximately $0.7 million and was included in accrued liabilities on the Company’s Condensed Consolidated Balance Sheet.