CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	May 08, 2015
Operating Revenues:
Utility	$ 266,530	$ 210,329
Nonutility	116,422	139,872
Total Operating Revenues	382,952	350,201
Cost of Sales - (Excluding depreciation)
- Utility	144,974	103,077
- Nonutility	96,733	125,061
Operations	41,861	39,350
Maintenance	3,998	3,259
Depreciation	16,819	14,991
Energy and Other Taxes	2,196	1,953
Total Operating Expenses	306,581	287,691
Operating Income	76,371	62,510
Other Income and Expense	2,241	2,368
Interest Charges	(8,601)	(7,084)
Income Before Income Taxes	70,011	57,794
Income Taxes	(16,613)	(11,869)
Equity in Earnings of Affiliated Companies	455	2,286
Income from Continuing Operations	53,853	48,211
Loss from Discontinued Operations - (Net of tax benefit)	(276)	(313)
Net Income	$ 53,577	$ 47,898
Basic Earnings Per Common Share:
Continuing Operations (in dollars per share)	$ 0.79	$ 0.74
Discontinued Operations (in dollars per share)	$ 0.00	$ (0.01)
Basic Earnings Per Common Share (in dollars per share)	$ 0.79	$ 0.73
Average Shares of Common Stock Outstanding - Basic (in shares)	68,397	65,530
Diluted Earnings Per Common Share:
Continuing Operations (in dollars per share)	$ 0.79	$ 0.74
Discontinued Operations (in dollars per share)	$ 0.00	$ (0.01)
Diluted Earnings Per Common Share (in dollars per share)	$ 0.79	$ 0.73
Average Shares of Common Stock Outstanding - Diluted (in shares)	68,618	65,684
Dividends Declared per Common Share (in dollars per share)	$ 0.25	$ 0.24
Subsequent Event
Diluted Earnings Per Common Share:
Stockholders' Equity Note, Stock Split, Conversion Ratio			2