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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Revenues |  |  |  |
Total revenues | $ 27,676 | $ 58,369 | $ 84,660 | $ 206,993
Expenses |  |  |  |
Lease operating expenses | 8,069 | 23,866 | 32,409 | 71,721
Production, ad valorem, and other taxes | 2,333 | 4,346 | 7,386 | 15,303
Depreciation and depletion — oil and natural gas | 7,525 | 38,871 | 45,728 | 114,755
Depreciation and amortization — other | 1,698 | 2,981 | 6,071 | 8,910
Impairment | 44,043 | 165,507 | 253,797 | 165,507
General and administrative | 2,493 | 6,238 | 12,290 | 26,261
Restructuring expenses | 1,199 | 0 | 1,643 | 0
Employee termination benefits | 3,184 | 0 | 8,431 | 4,465
(Gain) loss on derivative contracts | 5,299 | (1,756) | (7,168) | (1,547)
Other operating expense, net | (116) | 23 | 269 | 142
Total expenses | 75,727 | 240,076 | 360,856 | 405,517
Loss from operations | (48,051) | (181,707) | (276,196) | (198,524)
Other income (expense) |  |  |  |
Interest expense, net | (569) | (722) | (1,653) | (2,009)
Other income (expense), net | (129) | 827 | 5 | 370
Total other income (expense) | (698) | 105 | (1,648) | (1,639)
Loss before income taxes | (48,749) | (181,602) | (277,844) | (200,163)
Income tax expense (benefit) | 0 | 0 | (646) | 0
Net loss | $ (48,749) | $ (181,602) | $ (277,198) | $ (200,163)
Loss per share |  |  |  |
Basic (in dollars per share) | $ (1.36) | $ (5.12) | $ (7.78) | $ (5.66)
Diluted (in dollars per share) | $ (1.36) | $ (5.12) | $ (7.78) | $ (5.66)
Weighted average number of common shares outstanding |  |  |  |
Basic (in shares) | 35,783,000 | 35,491,000 | 35,649,000 | 35,390,000
Diluted (in shares) | 35,783,000 | 35,491,000 | 35,649,000 | 35,390,000
Oil, natural gas and NGL |  |  |  |
Revenues |  |  |  |
Total revenues | $ 27,547 | $ 58,188 | $ 84,134 | $ 206,432
Other |  |  |  |
Revenues |  |  |  |
Total revenues | $ 129 | $ 181 | $ 526 | $ 561

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