Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 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	498
Liabilities settled	(114		)
Accretion expense	1,533
Balance as of March 31, 2018	$	90,295