CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Total operating revenues	$ 228.9	$ 231.8	$ 505.1	$ 504.9
Operating expenses
Related Party Transaction, Utilities Operating Expense, Purchased Power	99.9	101.6	203.4	202.9
Operating and maintenance expenses	51.3	48.9	103.2	99.3
Conservation expenses	3.1	3.1	6.0	6.1
Depreciation and amortization	34.4	31.5	68.5	62.0
Taxes (other than income taxes)	7.1	7.1	14.7	14.4
Total operating expenses	207.1	204.3	441.3	428.4
Operating income	21.8	27.5	63.8	76.5
Interest charges and financing costs
Interest charges — includes other financing costs of $0.3, $0.5, $0.7 and $1.0 respectively	9.8	9.7	19.8	19.3
Allowance for funds used during construction — debt	(0.3)	(1.0)	(0.6)	(1.8)
Total interest charges and financing costs	9.5	8.7	19.2	17.5
Other expense, net	(0.3)	(0.5)	(0.6)	(0.9)
Allowance for funds used during construction — equity	0.9	2.2	1.4	4.1
Income before income taxes	12.9	20.5	45.4	62.2
Income taxes	4.3	5.3	12.8	15.6
Net income	8.6	15.2	32.6	46.6
Electric, non-affiliates
Total operating revenues	164.4	171.1	335.3	349.8
Affiliate Revenue	43.5	38.4	87.6	76.1
Operating expenses
Cost of Goods Sold	3.1	3.6	5.0	6.5
Natural gas
Total operating revenues	20.9	22.0	82.0	78.5
Operating expenses
Cost of Goods Sold	8.2	8.5	40.5	37.2
Other
Total operating revenues	$ 0.1	$ 0.3	$ 0.2	$ 0.5