Annual report [Section 13 and 15(d), not S-K Item 405]

ASSET RETIREMENT OBLIGATIONS (Details)

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ASSET RETIREMENT OBLIGATIONS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Asset Retirement Obligations - Changes to Asset Retirement Obligation (Details)      
Asset retirement obligations, beginning of period $ 498,815 $ 466,430  
Liabilities settled (39,692) (33,970)  
Accretion expense 32,374 29,018 $ 26,508
Liabilities acquired 17,647 16,352  
Liabilities incurred   129  
Revisions of estimated liabilities 39,688 20,856  
Asset retirement obligations, end of period 548,832 498,815 $ 466,430
Less: Current portion (46,326) (31,553)  
Long-term $ 502,506 $ 467,262