XML 24 R14.htm IDEA: XBRL DOCUMENT v3.19.2
Asset Retirement Obligations
 6 Months Ended
Jun. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations Asset Retirement Obligations
Activity related to the Company’s asset retirement obligations is as follows:
(In thousands)
 
Six Months Ended 
 June 30, 2019
Balance at beginning of period(1)
 
$
51,622

Liabilities incurred
 
3,159

Liabilities settled
 
(970
)
Liabilities divested
 
(188
)
Accretion expense
 
1,733

Balance at end of period(1)
 
$
55,356

_______________________________________________________________________________
(1)
Includes $1.0 million of current asset retirement obligations included in accrued liabilities at June 30, 2019 and December 31, 2018.