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Asset Retirement Obligations
 12 Months Ended
Dec. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations
Asset Retirement Obligations
 
The following table summarizes the changes in the Company’s asset retirement obligation for the periods below:
 
Year Ended December 31,
 
2019
 
2018
 
(In thousands)
Asset retirement obligations, beginning of period
$
13,524

 
$
8,630

Additional liabilities incurred
434

 
4,480

Dispositions
(194
)
 
—

Accretion expense
800

 
638

Liabilities settled upon plugging and abandoning wells
(7
)
 
(441
)
Revision of estimates
(126
)
 
217

Asset retirement obligations, end of period
$
14,431

 
$
13,524