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Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2025
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Change in Asset Retirement Obligations
The following table shows the change in our ARO’s for the nine months ended September 30, 2025 (dollars in thousands):

 2025
Asset retirement obligations at January 1, 2025
$1,146,586 
Changes attributable to: 
Accretion expense48,051 
Settlements(14,779)
Estimated cash flow revisions38,921 
Asset retirement obligations at September 30, 2025
$1,218,779