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ASSET RETIREMENT OBLIGATIONS Asset Retirement Obligations Level 4 (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Asset Retirement Obligation, Roll Forward Analysis    
Balance at beginning of year $ 51,126 $ 48,997
Accretion Expense 2,457 1,895
Revisions in estimated cash flows 21,642 842
Liabilities settled 1,249 608
Balance at end of year $ 73,976 $ 51,126