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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenues |  |  |  |
Oil, natural gas and NGL | $ 97,491 | $ 80,540 | $ 263,761 | $ 263,235
Other | 169 | 352 | 489 | 858
Total revenues | 97,660 | 80,892 | 264,250 | 264,093
Expenses |  |  |  |
Production | 23,429 | 26,765 | 68,927 | 76,997
Production taxes | 5,636 | 3,606 | 14,725 | 9,435
Depreciation and depletion—oil and natural gas | 33,090 | 31,029 | 92,048 | 87,486
Depreciation and amortization—other | 3,036 | 3,399 | 9,229 | 10,729
Impairment | 0 | 498 | 4,170 | 3,475
General and administrative | 9,251 | 20,292 | 33,616 | 59,184
Accelerated vesting upon change in control | 0 | 0 | 6,545 | 0
Proxy contest | (459) | 0 | 7,139 | 0
Employee termination benefits | 23 | 0 | 32,653 | 4,815
Loss (gain) on derivative contracts | 11,329 | 11,702 | 59,763 | (46,024)
Other operating (income) expense | (105) | (132) | (1,343) | 135
Total expenses | 85,230 | 97,159 | 327,472 | 206,232
Income (loss) from operations | 12,430 | (16,267) | (63,222) | 57,861
Other (expense) income |  |  |  |
Interest expense, net | (627) | (872) | (2,226) | (2,757)
Gain on extinguishment of debt | 0 | 0 | 1,151 | 0
Other (expense) income, net | (118) | 197 | 972 | 2,222
Total other expense | (745) | (675) | (103) | (535)
Income (loss) before income taxes | 11,685 | (16,942) | (63,325) | 57,326
Income tax benefit | (30) | (8,457) | (72) | (8,496)
Net income (loss) | $ 11,715 | $ (8,485) | $ (63,253) | $ 65,822
Earnings (loss) per share |  |  |  |
Basic (in dollars per share) | $ 0.33 | $ (0.25) | $ (1.81) | $ 2.07
Diluted (in dollars per share) | $ 0.33 | $ (0.25) | $ (1.81) | $ 2.06
Weighted average number of common shares outstanding |  |  |  |
Basic (in shares) | 35,308,000 | 34,290,000 | 34,971,000 | 31,750,000
Diluted (in shares) | 35,330,000 | 34,290,000 | 34,971,000 | 31,984,000

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