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Asset Retirement Obligations
3 Months Ended
Mar. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations
Asset Retirement Obligations
The following table reflects the changes in the Company’s ARO during the three months ended March 31, 2019:
 
(In thousands)
Balance at December 31, 2018
$
52,449

Liabilities incurred during period
405

Liabilities settled during period
(72
)
Accretion expense during period(1)
718

Revisions to estimates
827

Balance at March 31, 2019
$
54,327

___________________
(1)
Included in depreciation, depletion and amortization on the Company’s Condensed Consolidated Statements of Operations.
At March 31, 2019, the current portion of the total ARO balance was approximately $0.9 million and was included in accrued liabilities on the Company’s Condensed Consolidated Balance Sheets.