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Asset Retirement Obligations
9 Months Ended
Sep. 30, 2025
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligation
Note 9 Asset Retirement Obligations
Asset retirement obligations are included in Other deferred liabilities and credits in the Consolidated Balance Sheet.
During the three months ended September 30, 2025, Array performed a review of the assumptions and estimated future costs related to asset retirement obligations. The results of the review and other changes in asset retirement obligations during the nine months ended September 30, 2025 were as follows:
Asset Retirement Obligations
(Dollars in thousands)
Balance at December 31, 2024$174,825 
Additional liabilities accrued168 
Revisions in estimated cash outflows16,882 
Disposition of assets(166)
Accretion expense6,581 
Balance at September 30, 2025$198,290