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Schedule I - Condensed Parent Company Finanical Statements (Details-Balance Sheet) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | --- | --- | ---
Current Assets: |  |  |  |
Cash and cash equivalents | $ 68,813 | $ 46,357 | $ 41,169 | $ 7,110
Accounts receivable, net: |  |  |  |
Prepaid taxes and other | 19,106 | 19,520 |  |
Total Current Assets | 220,601 | 222,937 |  |
Other deferred assets and other | 5,853 | 5,973 |  |
Investments: |  |  |  |
Other investments | 0 | 1,804 |  |
Total investments | 67,952 | 64,595 |  |
Total Assets | 1,579,060 | 1,586,924 | 1,458,882 |
Current Liabilities: |  |  |  |
Accrued interest and taxes | 5,661 | 4,296 |  |
Other current liabilities | 9,489 | 5,637 |  |
Total Current Liabilities | 96,666 | 75,797 |  |
Other Credits: |  |  |  |
Deferred income taxes | 284,791 | 270,410 |  |
Total Other Credits | 465,470 | 573,207 |  |
Shareholders' Equity: |  |  |  |
Retained income | 266,197 | 228,399 |  |
Other comprehensive income (loss) | 377 | 94 |  |
Total Common Shareholders' Equity | 617,510 | 579,429 | 550,952 | 525,080
Commitments and contingencies (see Footnote 18) | 0 | 0 |  |
Total Liabilities and Capitalization | 1,579,060 | 1,586,924 |  |
MGE Energy [Member] |  |  |  |
Current Assets: |  |  |  |
Cash and cash equivalents | 51,204 | 36,881 | 24,620 | 972
Accounts receivable, net: |  |  |  |
Accounts receivable from affiliates | 125 | 795 |  |
Prepaid taxes and other | 1,015 | 451 |  |
Total Current Assets | 52,344 | 38,127 |  |
Other deferred assets and other | 157 | 129 |  |
Investments: |  |  |  |
Investments in affiliates | 583,435 | 556,911 |  |
Other investments | 948 | 787 |  |
Total investments | 584,383 | 557,698 |  |
Total Assets | 636,884 | 595,954 |  |
Current Liabilities: |  |  |  |
Accounts payable to affiliates | 530 | 603 |  |
Accrued interest and taxes | 4,297 | 4,164 |  |
Other current liabilities | 3,076 | 1,148 |  |
Total Current Liabilities | 7,903 | 5,915 |  |
Other Credits: |  |  |  |
Deferred income taxes | 5,646 | 4,228 |  |
Accounts payable to affiliates | 5,825 | 6,382 |  |
Total Other Credits | 11,471 | 10,610 |  |
Shareholders' Equity: |  |  |  |
Common shareholders' equity | 350,936 | 350,936 |  |
Retained income | 266,197 | 228,399 |  |
Other comprehensive income (loss) | 377 | 94 |  |
Total Common Shareholders' Equity | 617,510 | 579,429 |  |
Commitments and contingencies (see Footnote 18) | 0 | 0 |  |
Total Liabilities and Capitalization | $ 636,884 | $ 595,954 |  |

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