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Segment Information (Tables)
9 Months Ended
Sep. 30, 2015
Segment Reporting [Abstract]  
Segment Information

The following tables show segment information for MGE Energy's operations for the indicated periods:

(In thousands)MGE EnergyElectricGasNon- Regulated EnergyTransmission InvestmentAll OthersConsolidation/ Elimination EntriesConsolidated Total
Three Months Ended September 30, 2015
Operating revenues$121,453$17,431$1,911$-$-$-$140,795
Interdepartmental revenues1633,8559,866--(13,884)-
Total operating revenues121,61621,28611,777--(13,884)140,795
Depreciation and amortization(7,584)(1,714)(1,872)-(12)-(11,182)
Other operating expenses(80,202)(16,906)(36)(15)(161)13,884(83,436)
Operating income (loss)33,8302,6669,869(15)(173)-46,177
Other (deductions) income, net141(7)-2,39733-2,564
Interest (expense) income, net(2,798)(804)(1,491)-57-(5,036)
Income (loss) before taxes31,1731,8558,3782,382(83)-43,705
Income tax (provision) benefit(10,321)(732)(3,362)(962)26-(15,351)
Net income (loss)$20,852$1,123$5,016$1,420$(57)$-$28,354
Three Months Ended September 30, 2014
Operating revenues$112,869$21,404$862$-$-$-$135,135
Interdepartmental revenues1561,61410,674--(12,444)-
Total operating revenues113,02523,01811,536--(12,444)135,135
Depreciation and amortization(6,931)(1,575)(1,858)-(12)-(10,376)
Other operating expenses(74,573)(22,199)(35)-(276)12,444(84,639)
Operating income (loss)31,521(756)9,643-(288)-40,120
Other income, net1368-2,42369-2,636
Interest (expense) income, net(2,832)(808)(1,545)-44-(5,141)
Income (loss) before taxes28,825(1,556)8,0982,423(175)-37,615
Income tax (provision) benefit(10,758)651(3,251)(963)35-(14,286)
Net income (loss)$18,067$(905)$4,847$1,460$(140)$-$23,329
Nine Months Ended September 30, 2015
Operating revenues$319,174$108,028$5,853$-$-$-$433,055
Interdepartmental revenues4008,87129,566--(38,837)-
Total operating revenues319,574116,89935,419--(38,837)433,055
Depreciation and amortization(22,372)(5,018)(5,601)-(35)-(33,026)
Other operating expenses(239,963)(96,063)(122)(15)(626)38,837(297,952)
Operating income (loss)57,23915,81829,696(15)(661)-102,077
Other (deductions) income, net247(33)-6,568333-7,115
Interest (expense) income, net(8,385)(2,398)(4,516)-164-(15,135)
Income (loss) before taxes49,10113,38725,1806,553(164)-94,057
Income tax (provision) benefit(15,868)(5,370)(10,106)(2,637)35-(33,946)
Net income (loss)$33,233$8,017$15,074$3,916$(129)$-$60,111
Nine Months Ended September 30, 2014
Operating revenues$308,418$163,335$2,392$-$-$-$474,145
Interdepartmental revenues4017,13032,017--(39,548)-
Total operating revenues308,819170,46534,409--(39,548)474,145
Depreciation and amortization(19,909)(4,700)(5,547)-(35)-(30,191)
Other operating expenses(229,286)(144,907)(105)-(672)39,548(335,422)
Operating income (loss)59,62420,85828,757-(707)-108,532
Other (deductions) income, net2,999(44)-7,306475-10,736
Interest (expense) income, net(7,571)(2,429)(4,676)-126-(14,550)
Income (loss) before taxes55,05218,38524,0817,306(106)-104,718
Income tax provision(19,602)(7,378)(9,665)(2,924)(16)-(39,585)
Net income (loss)$35,450$11,007$14,416$4,382$(122)$-$65,133

The following tables show segment information for MGE's operations for the indicated periods:

(In thousands)MGEElectricGasNon- Regulated EnergyTransmission InvestmentConsolidation/ Elimination EntriesConsolidated Total
Three Months Ended September 30, 2015
Operating revenues$121,460$17,435$1,911$-$-$140,806
Interdepartmental revenues1563,8519,866-(13,873)-
Total operating revenues121,61621,28611,777-(13,873)140,806
Depreciation and amortization(7,584)(1,714)(1,872)--(11,170)
Other operating expenses*(90,511)(17,635)(3,398)(15)13,873(97,686)
Operating income (loss)*23,5211,9376,507(15)-31,950
Other (deductions) income, net*129(10)-1,435-1,554
Interest expense, net(2,798)(804)(1,491)--(5,093)
Net income20,8521,1235,0161,420-28,411
Less: Net income attributable to
noncontrolling interest, net of tax----(6,633)(6,633)
Net income attributable to MGE$20,852$1,123$5,016$1,420$(6,633)$21,778
Three Months Ended September 30, 2014
Operating revenues$112,875$21,410$862$-$-$135,147
Interdepartmental revenues1501,60810,674-(12,432)-
Total operating revenues113,02523,01811,536-(12,432)135,147
Depreciation and amortization(6,931)(1,575)(1,858)--(10,364)
Other operating expenses*(85,314)(21,544)(3,286)-12,432(97,712)
Operating income (loss)*20,780(101)6,392--27,071
Other income, net*1194-1,460-1,583
Interest expense, net(2,832)(808)(1,545)--(5,185)
Net income (loss)18,067(905)4,8471,460-23,469
Less: Net income attributable to
noncontrolling interest, net of tax----(6,653)(6,653)
Net income (loss) attributable to MGE$18,067$(905)$4,847$1,460$(6,653)$16,816
Nine Months Ended September 30, 2015
Operating revenues$319,191$108,039$5,853$-$-$433,083
Interdepartmental revenues3838,86029,566-(38,809)-
Total operating revenues319,574116,89935,419-(38,809)433,083
Depreciation and amortization(22,372)(5,018)(5,601)--(32,991)
Other operating expenses*(255,732)(101,405)(10,228)(15)38,809(328,571)
Operating income (loss)*41,47010,47619,590(15)-71,521
Other (deductions) income, net*148(61)-3,931-4,018
Interest expense, net(8,385)(2,398)(4,516)--(15,299)
Net income33,2338,01715,0743,916-60,240
Less: Net income attributable to
noncontrolling interest, net of tax----(19,812)(19,812)
Net income attributable to MGE$33,233$8,017$15,074$3,916$(19,812)$40,428
Nine Months Ended September 30, 2014
Operating revenues$308,435$163,351$2,392$-$-$474,178
Interdepartmental revenues3847,11432,017-(39,515)-
Total operating revenues308,819170,46534,409-(39,515)474,178
Depreciation and amortization(19,909)(4,700)(5,547)--(30,156)
Other operating expenses*(248,525)(152,182)(9,770)-39,515(370,962)
Operating income (loss)*40,38513,58319,092--73,060
Other (deductions) income, net*2,636(147)-4,382-6,871
Interest expense, net(7,571)(2,429)(4,676)--(14,676)
Net income35,45011,00714,4164,382-65,255
Less: Net income attributable to
noncontrolling interest, net of tax----(19,784)(19,784)
Net income attributable to MGE$35,450$11,007$14,416$4,382$(19,784)$45,471
*Amounts are shown net of the related tax expense, consistent with the presentation on the MGE Consolidated Statement of Income.