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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Operating Revenues:
Regulated electric revenues	$ 119,836	$ 118,914	$ 310,176	$ 305,189
Regulated gas revenues	18,864	16,587	121,373	92,235
Nonregulated revenues	1,399	2,337	4,075	6,894
Total Operating Revenues	140,099	137,838	435,624	404,318
Operating Expenses:
Fuel for electric generation	13,950	16,395	34,520	36,727
Purchased power	21,981	18,102	61,237	54,962
Cost of gas sold	8,819	7,389	70,259	50,035
Other operations and maintenance	41,134	41,975	124,670	126,202
Depreciation and amortization	9,710	9,706	28,864	29,042
Other general taxes	4,605	4,383	14,049	13,937
Total Operating Expenses	100,199	97,950	333,599	310,905
Operating Income	39,900	39,888	102,025	93,413
Other income, net	3,750	2,856	9,770	7,975
Interest expense, net	(4,605)	(4,849)	(13,937)	(14,717)
Income before income taxes	39,045	37,895	97,858	86,671
Income tax provision	(14,692)	(14,253)	(37,030)	(32,711)
Net Income (Loss)	$ 24,353	$ 23,642	$ 60,828	$ 53,960
Earnings Per Share of Common Stock (basic and diluted)	$ 1.05	$ 1.02	$ 2.63	$ 2.33
Dividends per share of common stock	$ 0.408	$ 0.395	$ 1.198	$ 1.161
Weighted Average Shares Outstanding (basic and diluted)	23,114	23,114	23,114	23,114