Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS - Changes to Asset Retirement Obligation (Details)

v3.23.2
ASSET RETIREMENT OBLIGATIONS - Changes to Asset Retirement Obligation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Asset Retirement Obligations - Changes to Asset Retirement Obligation (Details)          
Asset retirement obligations, beginning of period     $ 466,430    
Liabilities settled     (11,841)    
Accretion expense $ 7,717 $ 6,681 15,227 $ 12,917  
Liabilities incurred     113    
Revisions of estimated liabilities     10,903    
Asset retirement obligations, end of period 480,832   480,832    
Less: Current portion (37,763)   (37,763)   $ (25,359)
Asset retirement obligations, less current portion $ 443,069   $ 443,069