Annual report pursuant to Section 13 and 15(d)

Asset Retirement Obligations (Details)

v3.22.0.1
Asset Retirement Obligations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Asset retirement obligations at beginning of period $ 59,090 $ 49,733
Accretion expense 3,743 3,323
Liabilities incurred 1,826 3,895
Increase due to acquisition of oil and gas properties 1,898 0
Liabilities settled (1,769) (2,220)
Dispositions (7,262) (351)
Revisions to estimates (819) 4,710
Asset retirement obligations, end of period 56,707 59,090
Less: Current asset retirement obligations (2,249) (1,881)
Long-term asset retirement obligations 54,458 57,209
Restricted Investments    
Restricted investments $ 3,500 $ 3,500