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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Revenues |  |
Revenues | $ 605,253 | $ 377,812
Operating expenses |  |
Cost of revenues (excluding depreciation) | 501,289 | 342,388
Operating expense (excluding depreciation) | 50,348 | 38,177
Depreciation, depletion, and amortization | 11,260 | 5,095
General and administrative expense | 12,914 | 11,200
Acquisition and integration expense | 253 | 671
Total operating expenses | 576,064 | 397,531
Operating income (loss) | 29,189 | (19,719)
Other income (expense) |  |
Interest expense and financing costs, net | (8,942) | (4,613)
Other income, net | 130 | 46
Change in value of common stock warrants | (689) | 1,644
Change in value of contingent consideration | 0 | 6,176
Equity earnings (losses) from Laramie Energy, LLC | 8,746 | (1,871)
Total other income (expense), net | (755) | 1,382
Income (loss) before income taxes | 28,434 | (18,337)
Income tax expense | (648) | (336)
Net income (loss) | $ 27,786 | $ (18,673)
Earnings (loss) per share |  |
Income (loss) per common share, basic (USD per share) | $ 0.60 | $ (0.46)
Income (loss) per common share, diluted (USD per share) | $ 0.58 | $ (0.46)
Weighted-average number of shares outstanding |  |
Basic (in shares) | 45,476 | 40,974
Diluted (in shares) | 51,865 | 40,974

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