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v3.19.1

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 879,112 | $ 909,781 | $ 856,396 | $ 765,439 | $ 663,062 | $ 610,506 | $ 564,245 | $ 605,253 | $ 3,410,728 | $ 2,443,066 | $ 1,865,045
Operating expenses |  |  |  |  |  |  |  |  |  |  |
Cost of revenues (excluding depreciation) |  |  |  |  |  |  |  |  | 3,003,116 | 2,054,627 | 1,636,339
Operating expense (excluding depreciation) |  |  |  |  |  |  |  |  | 215,284 | 202,016 | 169,371
Depreciation, depletion, and amortization |  |  |  |  |  |  |  |  | 52,642 | 45,989 | 31,617
General and administrative expense (excluding depreciation) |  |  |  |  |  |  |  |  | 47,426 | 46,078 | 42,073
Acquisition and integration costs |  |  |  |  |  |  |  |  | 10,319 | 395 | 5,294
Total operating expenses |  |  |  |  |  |  |  |  | 3,328,787 | 2,349,105 | 1,884,694
Operating income (loss) | 20,408 | 4,894 | 28,983 | 27,656 | 21,605 | 26,716 | 16,451 | 29,189 | 81,941 | 93,961 | (19,649)
Other income (expense) |  |  |  |  |  |  |  |  |  |  |
Interest expense and financing costs, net |  |  |  |  |  |  |  |  | (39,768) | (31,632) | (28,506)
Debt extinguishment and commitment costs |  |  |  |  |  |  |  |  | (4,224) | (8,633) | 0
Gain on curtailment of pension obligation |  |  |  |  |  |  |  |  | 0 | 0 | 3,067
Other income (expense), net |  |  |  |  |  |  |  |  | 1,046 | 911 | (10)
Change in value of common stock warrants |  |  |  |  |  |  |  |  | 1,801 | (1,674) | 2,962
Change in value of contingent consideration |  |  |  |  |  |  |  |  | (10,500) | 0 | 10,770
Equity earnings (losses) from Laramie Energy, LLC |  |  |  |  |  |  |  |  | 9,464 | 18,369 | (22,381)
Total other expense, net |  |  |  |  |  |  |  |  | (42,181) | (22,659) | (34,098)
Income (loss) before income taxes |  |  |  |  |  |  |  |  | 39,760 | 71,302 | (53,747)
Income tax benefit (expense) |  |  |  |  |  |  |  |  | (333) | 1,319 | 7,912
Net income (loss) | $ 13,886 | $ (5,822) | $ 16,178 | $ 15,185 | $ 19,005 | $ 18,824 | $ 7,006 | $ 27,786 | $ 39,427 | $ 72,621 | $ (45,835)
Income (loss) per share |  |  |  |  |  |  |  |  |  |  |
Basic (USD per share) | $ 0.30 | $ (0.13) | $ 0.35 | $ 0.33 | $ 0.41 | $ 0.41 | $ 0.15 | $ 0.60 | $ 0.85 | $ 1.58 | $ (1.08)
Diluted (USD per share) | $ 0.30 | $ (0.13) | $ 0.35 | $ 0.33 | $ 0.41 | $ 0.41 | $ 0.15 | $ 0.58 | $ 0.85 | $ 1.57 | $ (1.08)
Weighted-average number of shares outstanding |  |  |  |  |  |  |  |  |  |  |
Basic (in shares) |  |  |  |  |  |  |  |  | 45,726 | 45,543 | 42,349
Diluted (in shares) |  |  |  |  |  |  |  |  | 45,755 | 45,583 | 42,349

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Namespace Prefix: | us-gaap_
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