MGE Energy Inc Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Operating Revenues:
Regulated electric revenues	$ 98,240	$ 98,852
Regulated gas revenues	69,928us-gaap_GasDomesticRegulatedRevenue	110,713us-gaap_GasDomesticRegulatedRevenue
Nonregulated revenues	1,966us-gaap_UnregulatedOperatingRevenue	680us-gaap_UnregulatedOperatingRevenue
Total Operating Revenues	170,134	210,245
Operating Expenses:
Fuel for electric generation	11,892	14,132
Purchased power	22,865	18,555
Cost of gas sold	46,919	78,508
Other operations and maintenance	40,674	40,472
Depreciation and amortization	10,849	9,746
Other general taxes	5,084us-gaap_UtilitiesOperatingExpenseTaxes	4,861us-gaap_UtilitiesOperatingExpenseTaxes
Total Operating Expenses	138,283us-gaap_UtilitiesOperatingExpense	166,274us-gaap_UtilitiesOperatingExpense
Operating Income	31,851us-gaap_OperatingIncomeLoss	43,971us-gaap_OperatingIncomeLoss
Other income, net	2,105us-gaap_NonoperatingIncomeExpense	4,552us-gaap_NonoperatingIncomeExpense
Interest expense, net	(5,091)us-gaap_InterestIncomeExpenseNet	(4,541)us-gaap_InterestIncomeExpenseNet
Income before income taxes	28,865	43,982
Income tax provision	(10,587)us-gaap_IncomeTaxExpenseBenefit	(16,265)us-gaap_IncomeTaxExpenseBenefit
Net Income (Loss)	$ 18,278us-gaap_NetIncomeLoss	$ 27,717us-gaap_NetIncomeLoss
Earnings Per Share of Common Stock (basic and diluted)	$ 0.53us-gaap_EarningsPerShareBasicAndDiluted	$ 0.80us-gaap_EarningsPerShareBasicAndDiluted
Dividends per share of common stock	$ 0.283	$ 0.272
Weighted Average Shares Outstanding (basic and diluted)	34,668	34,668

The cost of gas sold charged against earnings for the period.

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Revenue derived from the regulated (by a federal, state, or local government or agency) generation, transmission and distribution of electricity.

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Amount of operating expense for fuel used by regulated operation.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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