Asset Retirement Obligations (Tables)
 9 Months Ended
Sep. 30, 2020
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Asset Retirement Obligations
The following table summarizes changes in the Company’s asset retirement obligations (“ARO”) associated with its working interests in oil and gas properties for the nine months ended September 30, 2020:
(in thousands)
 
Asset retirement obligations, beginning of period
$
16,874

Liabilities incurred and acquired
630

Liabilities divested and settled
(306
)
Accretion expense
831

Revisions to estimated cash flows
96

Asset retirement obligations, end of period
$
18,125