Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2024

Asset Retirement Obligation [Abstract]

Schedule of Change in Asset Retirement Obligation

A reconciliation of the Company's liability, which the current portion is included in other accrued liabilities on the Consolidated Balance Sheets, for the years ended December 31 was as follows:

	2024		2023
	(In thousands)
Balance at beginning of year	$	385,154	$	373,147
Liabilities incurred	2,721		533
Liabilities settled	(5,271)		(6,633)
Accretion expense*	19,655		18,894
Revisions in estimates	4,388		(787)
Balance at end of year	$	406,647	$	385,154

*Includes $19.6 million and $18.9 million in 2024 and 2023, respectively, recorded to regulatory assets.