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v2.3.0.11

Condensed Consolidated Balance Sheets (USD $) In Thousands | Jun. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 79,225 |
Accounts receivable (less accumulated provision for doubtful accounts June 30, 2011 and December 31, 2010: $18,180 and $18,335) | 131,567 | 156,709
Unbilled revenues | 7,061 | 38,361
Inventory | 110,382 | 137,853
Derivative instruments, at fair value | 211,986 | 225,339
Assets held for sale | 201,852 | 207,678
Prepaid expenses and other | 57,312 | 62,000
Total current assets | 799,385 | 827,940
Equity in nonconsolidated investments | 139,234 | 191,265
Property, plant and equipment | 8,071,330 | 7,689,025
Less: accumulated depreciation and depletion | 1,849,063 | 1,778,934
Net property, plant and equipment | 6,222,267 | 5,910,091
Investments, available-for-sale |  | 28,968
Regulatory assets | 98,962 | 100,949
Other assets | 33,241 | 39,225
Total assets | 7,293,089 | 7,098,438
Current liabilities: |  |
Current portion of long-term debt | 24,988 | 6,000
Short-term loans |  | 53,650
Accounts payable | 187,419 | 212,134
Derivative instruments, at fair value | 97,531 | 106,721
Other current liabilities | 162,097 | 218,479
Total current liabilities | 472,035 | 596,984
Long-term debt | 1,988,380 | 1,943,200
Deferred income taxes and investment tax credits | 1,387,673 | 1,274,888
Unrecognized tax benefits | 36,748 | 41,451
Pension and other post-retirement benefits | 40,271 | 44,135
Other credits | 131,427 | 119,084
Total liabilities | 4,056,534 | 4,019,742
Common stockholders' equity: |  |
Common stock, no par value, authorized 320,000 shares; (shares issued June 30, 2011 and December 31, 2010: 175,685 and 175,684) | 1,725,398 | 1,723,898
Treasury stock, at cost: (shares at June 30, 2011 and December 31, 2010: 26,226 and 26,531) | (473,543) | (479,072)
Retained earnings | 1,939,980 | 1,795,766
Accumulated other comprehensive income | 44,720 | 38,104
Total common stockholders' equity | 3,236,555 | 3,078,696
Total liabilities and stockholders' equity | $ 7,293,089 | $ 7,098,438

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