Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2018

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Components of the Change in the ARO Balance

The following table reflects the components of the change in Energen’s ARO balance:

(in thousands)
Balance as of December 31, 2017	$	88,378
Liabilities incurred	1,743
Liabilities settled	(103		)
Accretion expense	4,704
Balance as of September 30, 2018	$	94,722