v2.4.0.6

Consolidated Statements of Operations (USD $) In Millions, except Share data in Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Operating revenues: |  |  |  |
Commodity revenue | $ 5,417 | $ 6,753 |  | $ 6,578
Unrealized mark-to-market gain (loss) | 48 | 35 |  | (61)
Other revenue | 13 | 12 |  | 28
Operating revenues | 5,478 | 6,800 |  | 6,545
Operating expenses: |  |  |  |
Commodity expense | 2,894 | 4,299 |  | 4,187
Unrealized mark-to-market (gain) loss | 130 | 60 |  | (204)
Fuel and purchased energy expense | 3,024 | 4,359 |  | 3,983
Plant operating expense | 922 | 904 |  | 868
Depreciation and amortization expense | 562 | 550 |  | 570
Sales, general and other administrative expense | 140 | 131 |  | 151
Other operating expenses | 78 | 77 |  | 91
Total operating expenses | 4,726 | 6,021 |  | 5,663
Impairment losses | 0 | 0 |  | 116
(Gain) on sale of assets, net | (222) | 0 |  | (119)
(Income) from unconsolidated investments in power plants | (28) | (21) |  | (16)
Income from operations | 1,002 | 800 |  | 901
Interest expense | 736 | 760 |  | 813
Loss on interest rate derivatives | 14 | 145 |  | 223
Interest (income) | (11) | (9) |  | (11)
Debt extinguishment costs | 30 | 94 |  | 91
Other (income) expense, net | 15 | 21 |  | 15
Income (loss) before income taxes and discontinued operations | 218 | (211) |  | (230)
Income tax expense (benefit) | 19 | (22) | [1] | (68)
Income (loss) before discontinued operations | 199 | (189) |  | (162)
Discontinued operations, net of tax expense | 0 | 0 |  | 193
Net income (loss) | 199 | (189) |  | 31
Net income attributable to the noncontrolling interest | 0 | (1) |  | 0
Net income (loss) attributable to Calpine | $ 199 | $ (190) |  | $ 31
Basic earnings (loss) per common share attributable to Calpine: |  |  |  |
Weighted average shares of common stock outstanding (in shares) | 467,752 | 485,381 |  | 486,044
Income (loss) before discontinued operations attributable to Calpine (in dollars per share) | $ 0.43 | $ (0.39) |  | $ (0.33)
Discontinued operations, net of tax expense attributable to Calpine (in dollars per share) | $ 0.00 | $ 0.00 |  | $ 0.39
Net income (loss) per common share attributable to Calpine — basic (in dollars per share) | $ 0.43 | $ (0.39) |  | $ 0.06
Diluted earnings (loss) per common share attributable to Calpine: |  |  |  |
Weighted average shares of common stock outstanding (in shares) | 471,343 | 485,381 |  | 487,294
Income (loss) before discontinued operations attributable to Calpine (in dollars per share) | $ 0.42 | $ (0.39) |  | $ (0.33)
Discontinued operations, net of tax expense attributable to Calpine (in dollars per share) | $ 0.00 | $ 0.00 |  | $ 0.39
Net income (loss) per common share attributable to Calpine — diluted (in dollars per share) | $ 0.42 | $ (0.39) |  | $ 0.06
[1] | Includes approximately $13 million in intraperiod tax expense related to a prior period with an offsetting benefit in OCI.

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