Quarterly report pursuant to Section 13 or 15(d)

Asset Retirement Obligations (Tables)

v3.10.0.1
Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2018
Asset Retirement Obligation [Abstract]  
Summary of Activity of Asset Retirement Obligations
The table below summarizes the activity for the Company’s ARO:
 
Nine Months Ended
 
September 30, 2018
Asset retirement obligations at January 1, 2018
$
6,020

Accretion expense
626

Liabilities incurred
729

Liabilities settled
(989
)
Sales
(612
)
Revisions to estimate (a)
4,118

Asset retirement obligations at end of period
9,892

Less: Current asset retirement obligations
(4,464
)
Long-term asset retirement obligations at September 30, 2018
$
5,428


(a)
Revisions to estimated ARO obligations can result from changes in retirement cost estimates, revisions to estimated inflation rates and changes in the estimated timing of abandonment.