Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

		December 31, 2025				December 31, 2024
(Millions of dollars)	Estimated Useful Life	Cost		Net		Cost		Net
Land		$	709.4	$	709.4	$	674.6	$	674.6
Real estate finance leases	1 to 40 years	155.0		93.0		150.9		100.8
Pipeline and terminal facilities	3 to 25 years	105.9		59.8		99.2		57.1
Retail gasoline stores	3 to 50 years	3,823.4		1,953.9		3,498.7		1,826.3
Buildings	20 to 45 years	75.7		40.6		75.4		43.8
Other	3 to 20 years	266.9		106.1		245.8		110.6
		$	5,136.3	$	2,962.8	$	4,744.6	$	2,813.2