v2.4.0.6

Consolidated Statements of Operations (USD $) In Millions, except Share data in Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Operating revenues: |  |
Commodity revenue | $ 1,308 | $ 1,212
Unrealized mark-to-market gain (loss) | (71) | 22
Other revenue | 4 | 2
Operating revenues | 1,241 | 1,236
Operating expenses: |  |
Commodity expense | 835 | 691
Unrealized mark-to-market (gain) | (14) | (56)
Fuel and purchased energy expense | 821 | 635
Plant operating expense | 227 | 221
Depreciation and amortization expense | 146 | 140
Sales, general and other administrative expense | 33 | 33
Other operating expenses | 18 | 21
Total operating expenses | 1,245 | 1,050
(Income) from unconsolidated investments in power plants | (8) | (9)
Income (loss) from operations | 4 | 195
Interest expense | 176 | 185
Loss on interest rate derivatives | 0 | 14
Interest (income) | (2) | (3)
Debt extinguishment costs | 0 | 12
Other (income) expense, net | 5 | 2
Income (loss) before income taxes | (175) | (15)
Income tax benefit | (50) | (6)
Net loss | (125) | (9)
Net income attributable to the noncontrolling interest | 0 | 0
Net loss attributable to Calpine | $ (125) | $ (9)
Basic and diluted loss per common share attributable to Calpine: |  |
Weighted average shares of common stock outstanding (in thousands) | 451,706 | 478,106
Net loss per common share attributable to Calpine — basic and diluted | $ (0.28) | $ (0.02)

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