Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2019

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Asset Retirement Obligations

A reconciliation of the Company's asset retirement obligations for the three months ended March 31, 2019 is as follows (in thousands):

As of December 31, 2018	$	29,655
Liabilities incurred	864
Liabilities settled	(258		)
Disposition of properties	(73		)
Accretion expense	384
Revisions to estimate	400
As of March 31, 2019	$	30,972
Less: Current asset retirement obligations	3,648
Long-term asset retirement obligations	$	27,324