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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Revenues |  |  |  |
Total revenues | $ 75,388 | $ 79,462 | $ 148,624 | $ 166,590
Expenses |  |  |  |
Lease operating expenses | 25,076 | 19,757 | 47,855 | 43,276
Production, ad valorem, and other taxes | 5,877 | 5,683 | 10,957 | 11,917
Depreciation and depletion — oil and natural gas | 39,419 | 30,961 | 75,884 | 58,958
Depreciation and amortization — other | 2,986 | 3,040 | 5,929 | 6,193
Impairment | 0 | 0 | 0 | 4,170
General and administrative | 10,084 | 10,077 | 20,023 | 23,759
Accelerated vesting of employment compensation | 0 | 6,545 | 0 | 6,545
Proxy contest | 0 | 7,191 | 0 | 7,598
Employee termination benefits | 4,465 | 1,043 | 4,465 | 32,630
Loss on derivative contracts | 0 | 30,104 | 209 | 48,434
Other operating expense (income) | 37 | (1,254) | 119 | (1,238)
Total expenses | 87,944 | 113,147 | 165,441 | 242,242
Loss from operations | (12,556) | (33,685) | (16,817) | (75,652)
Other (expense) income |  |  |  |
Interest expense, net | (702) | (651) | (1,287) | (1,599)
Gain on extinguishment of debt | 0 | 0 | 0 | 1,151
Other (expense) income, net | (26) | 217 | (457) | 1,090
Total other (expense) income | (728) | (434) | (1,744) | 642
Loss before income taxes | (13,284) | (34,119) | (18,561) | (75,010)
Income tax benefit | 0 | (45) | 0 | (42)
Net loss | $ (13,284) | $ (34,074) | $ (18,561) | $ (74,968)
Loss per share |  |  |  |
Basic (in dollars per share) | $ (0.38) | $ (0.97) | $ (0.53) | $ (2.15)
Diluted (in dollars per share) | $ (0.38) | $ (0.97) | $ (0.53) | $ (2.15)
Weighted average number of common shares outstanding |  |  |  |
Basic (in shares) | 35,356,000 | 35,017,000 | 35,339,000 | 34,800,000
Diluted (in shares) | 35,356,000 | 35,017,000 | 35,339,000 | 34,800,000
Oil, natural gas and NGL |  |  |  |
Revenues |  |  |  |
Total revenues | $ 75,196 | $ 79,304 | $ 148,244 | $ 166,270
Other |  |  |  |
Revenues |  |  |  |
Total revenues | $ 192 | $ 158 | $ 380 | $ 320

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