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Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2025

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Reconciliation of Beginning and Ending Aggregate Carrying Amount of Asset Retirement Obligations

A reconciliation of the beginning and ending aggregate carrying amount of the ARO for the nine-month periods ended September 30, 2025 and 2024 are shown in the following table.

(Thousands of dollars)			September 30, 2025						September 30, 2024
Balance at beginning of year			$	1,008,884					$	914,763
Accretion			43,153						39,068
Liabilities incurred			14,267						17,975
Revisions of previous estimates			7,489						2,452
Liabilities settled			(32,145)						(1,982)
Changes due to translation of foreign currencies			6,147						(2,618)
Balance at end of period			1,047,795						969,658
Current portion of liability			(45,876)						(39,693)
Non-current portion of liability			$	1,001,919					$	929,965

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- References

No definition available.

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- Definition

Tabular disclosure of the carrying amount of a liability for asset retirement obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481850/410-20-50-1

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