Condensed Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Revenues
Regulated energy	$ 102,166	$ 81,566
Unregulated energy	79,973	54,991
Other	4,198	4,172
Total Operating Revenues	186,337	140,729
Operating Expenses
Regulated energy cost of sales	54,307	41,615
Unregulated energy and other cost of sales	61,325	40,090
Operations	26,626	21,754
Maintenance	2,148	1,722
Depreciation and amortization	6,635	5,820
Other taxes	3,673	3,178
Total Operating Expenses	154,714	114,179
Operating Income	31,623	26,550
Other income, net of other expenses	6	289
Interest charges	2,155	2,072
Income Before Income Taxes	29,474	24,767
Income taxes	11,793	9,898
Net Income	$ 17,681	$ 14,869
Weighted Average Common Shares Outstanding:
Basic (in shares)	9,658,431	9,601,529
Diluted (in shares)	9,693,434	9,678,950
Earnings Per Share of Common Stock:
Basic (in usd per share)	$ 1.83	$ 1.55
Diluted (in usd per share)	$ 1.82	$ 1.54
Cash Dividends Declared Per Share of Common Stock (in usd per share)	$ 0.385	$ 0.365