CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenues:
Transportation	$ 272.8	$ 266.6	$ 598.4	$ 583.8
Storage, parking and lending	32.4	27.6	61.5	55.5
Other	17.7	15.7	40.9	40.6
Total operating revenues	322.9	309.9	700.8	679.9
Operating Costs and Expenses:
Fuel and transportation	7.9	3.9	13.2	13.3
Operation and maintenance	57.0	49.3	103.9	97.7
Administrative and general	35.0	34.9	72.5	69.7
Depreciation and amortization	98.4	92.0	191.6	183.0
Loss (gain) on sale of assets and impairments	0.8	(0.1)	0.8	(0.2)
Taxes other than income taxes	28.4	25.4	58.3	56.1
Total operating costs and expenses	227.5	205.4	440.3	419.6
Operating income	95.4	104.5	260.5	260.3
Other Deductions (Income):
Interest expense	41.8	40.3	84.3	81.0
Interest income	(0.1)	0.0	(0.1)	0.0
Miscellaneous other income, net	(1.3)	(2.7)	(4.1)	(5.3)
Total other deductions	40.4	37.6	80.1	75.7
Income before income taxes	55.0	66.9	180.4	184.6
Income taxes	0.2	0.1	0.4	0.3
Net income	$ 54.8	$ 66.8	$ 180.0	$ 184.3