CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Operating Revenues
Total Operating Revenues	$ 88.2	$ 84.0	$ 318.5	$ 290.8
Operating Expenses
Operation and Maintenance	16.4	16.9	51.5	49.4
Depreciation and Amortization	12.4	10.8	37.4	35.2
Taxes Other Than Income Taxes	5.5	4.9	16.5	15.6
Total Operating Expenses	77.9	73.6	269.5	241.1
Operating Income	10.3	10.4	49.0	49.7
Interest Expense, net	6.0	5.8	17.9	17.1
Other Expense, net	1.1	0.9	4.1	3.7
Income Before Income Taxes	3.2	3.7	27.0	28.9
Income Tax Expense	0.4	1.4	5.0	11.1
Net Income	$ 2.8	$ 2.3	$ 22.0	$ 17.8
Net Income Per Common Share	$ 0.19	$ 0.16	$ 1.49	$ 1.27
Weighted Average Common Shares Outstanding	14.8	14.1	14.8	14.1
Dividends Declared Per Share of Common Stock	$ 0.365	$ 0.360	$ 1.095	$ 1.080
Gas
Operating Revenues
Total Operating Revenues	$ 25.7	$ 25.1	$ 147.4	$ 131.9
Operating Expenses
Operating Expenses	8.1	8.3	67.0	56.6
Electric
Operating Revenues
Total Operating Revenues	61.4	57.5	167.6	154.4
Operating Expenses
Operating Expenses	35.5	32.7	97.1	84.3
Other
Operating Revenues
Total Operating Revenues	$ 1.1	$ 1.4	$ 3.5	$ 4.5