MGE Energy Inc Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Operating Revenues:
Regulated electric revenues	$ 118,914	$ 114,963	$ 305,189	$ 291,804
Regulated gas revenues	16,587	17,249	92,235	119,748
Nonregulated revenues	2,337	1,360	6,894	3,884
Total Operating Revenues	137,838	133,572	404,318	415,436
Operating Expenses:
Fuel for electric generation	16,395	16,656	36,727	39,304
Purchased power	18,102	18,024	54,962	49,997
Cost of gas sold	7,389	8,171	50,035	72,170
Other operations and maintenance	41,975	39,744	126,202	119,814
Depreciation and amortization	9,706	10,296	29,042	30,669
Other general taxes	4,383	4,347	13,937	13,053
Total Operating Expenses	97,950	97,238	310,905	325,007
Operating Income	39,888	36,334	93,413	90,429
Other income, net	2,856	2,341	7,975	6,880
Interest expense, net	(4,849)	(5,142)	(14,717)	(15,047)
Income before income taxes	37,895	33,533	86,671	82,262
Income tax provision	(14,253)	(12,495)	(32,711)	(30,718)
Net Income (Loss)	$ 23,642	$ 21,038	$ 53,960	$ 51,544
Earnings Per Share of Common Stock (basic and diluted)	$ 1.02	$ 0.91	$ 2.33	$ 2.23
Dividends per share of common stock	$ 0.395	$ 0.383	$ 1.161	$ 1.133
Average Shares Outstanding (basic and diluted)	23,114	23,114	23,114	23,114