CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating Revenues:
Transportation	$ 395.0	$ 361.3
Storage, parking and lending	52.7	46.1
Product sales	152.7	84.7
Other	18.2	18.4
Total operating revenues	618.6	510.5
Operating Costs and Expenses:
Costs associated with service revenues	8.0	7.2
Costs associated with product sales	122.9	63.8
Operation and maintenance	58.2	58.9
Administrative and general	48.3	49.3
Depreciation and amortization	105.5	105.5
Gain on sale of assets, impairments and other	(1.0)	(7.7)
Taxes other than income taxes	32.3	31.7
Total operating costs and expenses	374.2	308.7
Operating income	244.4	201.8
Other Deductions (Income):
Interest expense	39.5	43.3
Interest income	(1.0)	(3.7)
Miscellaneous other income, net	(1.2)	(3.0)
Total other deductions	37.3	36.6
Income before income taxes	207.1	165.2
Income taxes	0.5	0.4
Net income	$ 206.6	$ 164.8