Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 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	1,145
Liabilities settled	(35		)
Accretion expense	3,100
Balance as of June 30, 2018	$	92,588