Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2026

Property, Plant, and Equipment [Abstract]

Schedule of Property, Plant and Equipment


(Thousands of U.S. Dollars)	As at June 30, 2026		As at December 31, 2025
Oil and natural gas properties
Proved	$	5,613,178	$	5,587,422
Unproved	108,769		108,339
	5,721,947		5,695,761
Other (1)	105,948		78,780
	5,827,895		5,774,541
Accumulated depletion, depreciation and impairment	(4,590,953)		(4,470,121)
	$	1,236,942	$	1,304,420

(1) The “other” category includes right-of-use assets for operating and finance leases of $90.0 million, which had a net book value of $42.9 million as at June 30, 2026 (December 31, 2025 - $65.0 million, which had a net book value of $30.8 million).