Consolidated Condensed Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues
Regulated electric and gas	$ 678.2	$ 603.6	$ 1,368.1	$ 1,179.3
Unregulated	2.4	2.1	5.5	4.4
Total revenues	680.6	605.7	1,373.6	1,183.7
Expenses
Fuel	171.8	169.7	315.9	319.3
Purchased power	19.6	19.9	36.7	38.1
Cost of natural gas sold	49.1	29.1	152.1	76.2
Other	155.4	126.8	299.1	247.4
Operations and maintenance other expense	1.1	4.6	2.7	7.8
Depreciation and amortization	87.0	75.5	172.5	151.4
Taxes, other than income	53.3	48.1	105.1	95.9
Total expenses	537.3	473.7	1,084.1	936.1
Income from operations	143.3	132.0	289.5	247.6
Other income
Allowance for other funds used during construction	3.7	2.0	7.5	4.4
Other income, net	1.4	(0.5)	3.0	(1.4)
Total other income	5.1	1.5	10.5	3.0
Interest charges
Interest expense	48.2	41.4	98.0	82.4
Allowance for borrowed funds used during construction	(1.8)	(0.7)	(3.7)	(2.1)
Total interest charges	46.4	40.7	94.3	80.3
Income from continuing operations before provision for income taxes	102.0	92.8	205.7	170.3
Provision for income taxes	40.5	35.2	80.4	64.3
Net income from continuing operations	61.5	57.6	125.3	106.0
Discontinued operations
Income (loss) from discontinued operations	(78.1)	0.0	(87.7)	1.2
Benefit from income taxes	(28.4)	(0.8)	(32.2)	(1.3)
Income (loss) on discontinued operations, net	(49.7)	0.8	(55.5)	2.5
Net income	$ 11.8	$ 58.4	$ 69.8	$ 108.5
Average common shares outstanding - Basic	233.0	215.4	232.9	215.3
Average common shares outstanding - Diluted	233.6	215.9	233.5	215.8
Earnings per share from continuing operations - Basic	$ 0.26	$ 0.27	$ 0.53	$ 0.49
Earnings per share from continuing operations - Diluted	0.26	0.27	0.53	0.49
Earnings per share from discontinued operations - Basic	(0.21)	0.00	(0.23)	0.01
Earnings per share from discontinued operations - Diluted	(0.21)	0.00	(0.23)	0.01
Earnings per share - Basic	0.05	0.27	0.30	0.50
Earnings per share - Diluted	0.05	0.27	0.30	0.50
Dividends paid per common share outstanding	$ 0.225	$ 0.220	$ 0.45	$ 0.44