CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenues
Electric	$ 711.8	$ 741.5
Gas	331.5	469.1
Steam and other	13.4	12.4
Total operating revenues	1,056.7	1,223.0
Operating expenses
Electric fuel and purchased power	270.8	304.2
Cost of natural gas sold and transported	137.6	272.5
Cost of sales — steam and other	3.0	4.4
Operating and maintenance expenses	204.5	199.3
Demand side management expenses	35.6	32.1
Depreciation and amortization	156.4	146.9
Taxes (other than income taxes)	53.2	53.7
Total operating expenses	861.1	1,013.1
Operating income	195.6	209.9
Other (expense) income, net	(1.8)	1.0
Allowance for funds used during construction — equity	8.6	4.1
Interest charges and financing costs
Interest charges — includes other financing costs of $1.7, and $1.6, respectively	60.1	59.5
Allowance for funds used during construction — debt	(3.8)	(2.4)
Total interest charges and financing costs	56.3	57.1
Income before income taxes	146.1	157.9
Income tax expense	17.4	19.1
Net income	$ 128.7	$ 138.8