Quarterly report [Sections 13 or 15(d)]

ASSET RETIREMENT OBLIGATIONS (Details)

v3.26.1
ASSET RETIREMENT OBLIGATIONS (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
ASSET RETIREMENT OBLIGATIONS      
Asset retirement obligations, beginning of period $ 561,851 $ 548,832  
Liabilities settled (17,166) (3,771)  
Accretion expense 8,517 8,392  
Liabilities incurred   1,029  
Revisions of estimated liabilities 12,837 7,369  
Asset retirement obligations, end of period 566,039 561,851  
Less: Current portion (25,471) (29,098) $ (26,147)
Long-term $ 540,568 $ 532,753 $ 535,704