Consolidated Condensed Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues
Regulated electric	$ 423.4	$ 449.7
Regulated gas	232.9	240.2
Unregulated	3.2	3.1
Total revenues	659.5	693.0
Expenses
Fuel	115.2	144.1
Purchased power	14.4	17.1
Cost of natural gas sold	96.8	103.0
Other	142.3	143.7
Operation and maintenance other expense	0.0	1.6
Depreciation and amortization	89.8	85.5
Taxes, other than income	52.9	51.8
Total expenses	511.4	546.8
Income from operations	148.1	146.2
Other income
Allowance for other funds used during construction	5.7	3.8
Other income, net	1.5	1.6
Total other income	7.2	5.4
Interest charges
Interest expense	48.9	49.8
Allowance for borrowed funds used during construction	(3.0)	(1.9)
Total interest charges	45.9	47.9
Income from continuing operations before provision for income taxes	109.4	103.7
Provision for income taxes	35.7	39.9
Net income from continuing operations	73.7	63.8
Discontinued operations
Income (loss) from discontinued operations	0.2	(9.6)
Provision (benefit) from income taxes	0.1	(3.8)
Income (loss) from discontinued operations, net	0.1	(5.8)
Net income	$ 73.8	$ 58.0
Average common shares outstanding - Basic	234.0	232.8
Average common shares outstanding - Diluted	235.2	233.5
Earnings per share from continuing operations - Basic	$ 0.31	$ 0.27
Earnings per share from continuing operations - Diluted	0.31	0.27
Earnings per share from discontinued operations - Basic	0.00	(0.02)
Earnings per share from discontinued operations - Diluted	0.00	(0.02)
Earnings per share - Basic	0.31	0.25
Earnings per share - Diluted	0.31	0.25
Dividends paid per common share outstanding	$ 0.230	$ 0.225