2.4.0.8010210 - Disclosure - Pension and Other Postretirement Planstruefalsefalse1falsefalsefalseFROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0001161728duration2013-01-01T00:00:002013-06-30T00:00:001true1mgee_PensionAndOtherPostretirementPlansDisclosureAbstractmgee_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse02false2us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0.350000000000001px;">6</font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">.</font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">       Pension and Other Postretirement </font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">Plans</font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;"> - MGE Energy and MGE.</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:27.35px;">MGE maintains qualified and nonqualified pension plans, health care, and life insurance benefits. Additionally, MGE has def</font><font style="font-family:Times New Roman;font-size:10pt;">ined</font><font style="font-family:Times New Roman;font-size:10pt;"> contribution 401(k) benefit plans.</font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:27.35px;">The following table presents the components of MGE Energy's and MGE's net periodic benefit costs recognized for the </font><font style="font-family:Times New Roman;font-size:10pt;">three and six months ended</font><font style="font-family:Times New Roman;font-size:10pt;"> June 30, 2013</font><font style="font-family:Times New Roman;font-size:10pt;"> and </font><font style="font-family:Times New Roman;font-size:10pt;">2012</font><font style="font-family:Times New Roman;font-size:10pt;">. A portion of the net periodic benefit cost is capitalized within the consolidated balance </font><font style="font-family:Times New Roman;font-size:10pt;">sheets</font><font style="font-family:Times New Roman;font-size:10pt;">.</font></p><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="3" style="width: 156px; text-align:center;border-color:#000000;min-width:156px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">Three Months Ended</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="3" style="width: 156px; text-align:center;border-color:#000000;min-width:156px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">Six Months Ended</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="3" style="width: 156px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:156px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">June 30,</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="3" style="width: 156px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:156px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">June 30,</font></td><td style="width: 24px; text-align:center;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-STYLE: italic;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">(In thousands)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">2013</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">2012</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">2013</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">2012</font></td><td style="width: 24px; text-align:center;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Pension Benefits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Components of net periodic benefit cost:</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Service cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,911</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,920</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,840</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,743</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Interest cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,157</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,321</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">6,343</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">6,475</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Expected return on assets</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(4,733)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(4,021)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(9,509)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(7,839)</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Amortization of:</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Prior service cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">79</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">114</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">158</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">222</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Actuarial loss</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,997</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,112</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">4,012</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">4,118</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Net periodic benefit cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,411</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">3,446</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">4,844</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">6,719</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-top-style:double;border-top-width:3px;text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Postretirement Benefits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Components of net periodic benefit cost:</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Service cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">591</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">606</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,187</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,253</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Interest cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">962</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,053</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,932</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,178</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Expected return on assets</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(540)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(407)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(1,084)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">(842)</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Amortization of:</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"> </td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Transition obligation</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">99</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">206</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Prior service cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">27</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">26</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">55</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">54</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;"> Actuarial loss</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">309</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">581</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">620</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 73px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,201</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr><tr style="height: 15px"><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td><td style="width: 245px; text-align:left;border-color:#000000;min-width:245px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">Net periodic benefit cost</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,350</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">1,958</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">2,712</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;">$</font></td><td style="width: 73px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:73px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: right;">4,050</font></td><td style="width: 24px; text-align:left;border-color:#000000;min-width:24px;"> </td></tr></table></div><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><p style='margin-top:12pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:27.35px;">The PSCW allowed MGE to defer the 2009 incremental pension and OPRB costs above the amounts recovered in rates. </font><font style="font-family:Times New Roman;font-size:10pt;">During </font><font style="font-family:Times New Roman;font-size:10pt;">both </font><font style="font-family:Times New Roman;font-size:10pt;">the </font><font style="font-family:Times New Roman;font-size:10pt;">three months ended</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">June 30,</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">2013</font><font style="font-family:Times New Roman;font-size:10pt;"> and </font><font style="font-family:Times New Roman;font-size:10pt;">2012</font><font style="font-family:Times New Roman;font-size:10pt;">, $</font><font style="font-family:Times New Roman;font-size:10pt;">0.3</font><font style="font-family:Times New Roman;font-size:10pt;"> million</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">has been recovered in rates</font><font style="font-family:Times New Roman;font-size:10pt;">. During </font><font style="font-family:Times New Roman;font-size:10pt;">both </font><font style="font-family:Times New Roman;font-size:10pt;">the </font><font style="font-family:Times New Roman;font-size:10pt;">six months ended</font><font style="font-family:Times New Roman;font-size:10pt;"> June 30,</font><font style="font-family:Times New Roman;font-size:10pt;"> 2013</font><font style="font-family:Times New Roman;font-size:10pt;"> and </font><font style="font-family:Times New Roman;font-size:10pt;">2012</font><font style="font-family:Times New Roman;font-size:10pt;">, $</font><font style="font-family:Times New Roman;font-size:10pt;">0.6</font><font style="font-family:Times New Roman;font-size:10pt;"> million has been recovered in rates</font><font style="font-family:Times New Roman;font-size:10pt;">. 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