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Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Current Assets: |  |  |  |
Cash and cash equivalents | $ 45,894 |  | $ 46,357 |
Receivable - margin account | 766 |  | 1,818 |
Accounts receivable, less reserves | 46,864 | [1] | 41,386 | [2]
Other accounts receivables, less reserves | 5,125 | [3] | 6,746 | [3]
Unbilled revenues | 26,761 |  | 28,262 |
Materials and supplies, at average cost | 16,933 |  | 16,997 |
Fossil fuel | 7,375 |  | 6,367 |
Stored natural gas, at average cost | 2,195 |  | 14,980 |
Prepaid taxes | 13,868 |  | 19,520 |
Regulatory assets - current | 8,471 |  | 10,327 |
Deferred income taxes | 14,260 |  | 23,483 |
Other current assets | 7,431 |  | 6,694 |
Total Current Assets | 195,943 |  | 222,937 |
Regulatory assets | 214,496 |  | 218,853 |
Other deferred assets and other | 7,222 |  | 7,075 |
Property, Plant, and Equipment: |  |  |  |
Property, plant, and equipment, net | 981,325 |  | 975,053 |
Construction work in progress | 115,803 |  | 98,411 |
Total Property, Plant, and Equipment | 1,097,128 |  | 1,073,464 |
Investments | 65,651 |  | 64,595 |
Total Assets | 1,580,440 |  | 1,586,924 |
Current Liabilities: |  |  |  |
Long-term debt due within one year | 3,365 |  | 3,013 |
Short-term debt | 10,500 |  | 0 |
Accounts payable | 39,586 |  | 43,518 |
Accrued interest and taxes | 4,099 |  | 4,296 |
Accrued payroll related items | 7,711 |  | 10,063 |
Derivative liabilities | 8,880 |  | 9,270 |
Other current liabilities | 10,605 |  | 5,637 |
Total Current Liabilities | 84,746 |  | 75,797 |
Other Credits: |  |  |  |
Deferred income taxes | 272,511 |  | 270,410 |
Investment tax credit - deferred | 1,466 |  | 1,520 |
Regulatory liabilities | 22,598 |  | 24,538 |
Accrued pension and other postretirement benefits | 133,380 |  | 162,835 |
Derivative liabilities | 61,810 |  | 63,320 |
Other deferred liabilities and other | 53,505 |  | 50,584 |
Total Other Credits | 545,270 |  | 573,207 |
Capitalization: |  |  |  |
Common shareholders equity | 592,946 |  | 579,429 |
Long-term debt | 357,478 |  | 358,491 |
Total Capitalization | 950,424 |  | 937,920 |
Commitments and contingencies (see Footnote 8) | 0 |  | 0 |
Total Liabilities and Capitalization | 1,580,440 |  | 1,586,924 |
MGE [Member] |  |  |  |
Current Assets: |  |  |  |
Cash and cash equivalents | 9,856 |  | 6,350 |
Receivable - margin account | 766 |  | 1,818 |
Accounts receivable, less reserves | 46,864 | [1] | 41,386 | [2]
Affiliate receivables | 619 |  | 634 |
Other accounts receivables, less reserves | 5,124 | [3] | 6,732 | [3]
Unbilled revenues | 26,761 |  | 28,262 |
Materials and supplies, at average cost | 16,933 |  | 16,997 |
Fossil fuel | 7,375 |  | 6,367 |
Stored natural gas, at average cost | 2,195 |  | 14,980 |
Prepaid taxes | 18,108 |  | 23,561 |
Regulatory assets - current | 8,471 |  | 10,327 |
Deferred income taxes | 13,808 |  | 23,305 |
Other current assets | 7,416 |  | 6,670 |
Total Current Assets | 164,296 |  | 187,389 |
Affiliate receivable long-term | 6,222 |  | 6,354 |
Regulatory assets | 214,496 |  | 218,853 |
Other deferred assets and other | 6,602 |  | 6,540 |
Property, Plant, and Equipment: |  |  |  |
Property, plant, and equipment, net | 980,820 |  | 974,549 |
Construction work in progress | 115,803 |  | 98,411 |
Total Property, Plant, and Equipment | 1,096,623 |  | 1,072,960 |
Investments | 62,366 |  | 61,555 |
Total Assets | 1,550,605 |  | 1,553,651 |
Current Liabilities: |  |  |  |
Long-term debt due within one year | 3,365 |  | 3,013 |
Short-term debt | 10,500 |  | 0 |
Accounts payable | 39,586 |  | 43,517 |
Affiliate payables | 405 |  | 767 |
Accrued interest and taxes | 3,699 |  | 4,248 |
Accrued payroll related items | 7,711 |  | 10,063 |
Derivative liabilities | 8,880 |  | 9,270 |
Other current liabilities | 10,163 |  | 4,491 |
Total Current Liabilities | 84,309 |  | 75,369 |
Other Credits: |  |  |  |
Deferred income taxes | 268,028 |  | 266,231 |
Investment tax credit - deferred | 1,466 |  | 1,520 |
Regulatory liabilities | 22,598 |  | 24,538 |
Accrued pension and other postretirement benefits | 133,380 |  | 162,835 |
Derivative liabilities | 61,810 |  | 63,320 |
Other deferred liabilities and other | 53,505 |  | 50,581 |
Total Other Credits | 540,787 |  | 569,025 |
Capitalization: |  |  |  |
Common shareholders equity | 449,057 |  | 433,296 |
Noncontrolling interest | 118,974 |  | 117,470 |
Total Equity | 568,031 |  | 550,766 |
Long-term debt | 357,478 |  | 358,491 |
Total Capitalization | 925,509 |  | 909,257 |
Commitments and contingencies (see Footnote 8) | 0 |  | 0 |
Total Liabilities and Capitalization | $ 1,550,605 |  | $ 1,553,651 |
[1] | less reserves of $3,914
[2] | less reserves of $3,885
[3] | less reserves of $931

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