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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Oil, natural gas and natural gas liquids sales: |  |  |  |
Other | $ 350 | $ 363 | $ 613 | $ 1,386
Total operating revenues | 61,595 | 96,953 | 166,265 | 352,688
Production: |  |  |  |
Lease operating | 5,275 | 17,798 | 15,504 | 58,822
Workover and other | 1,478 | 3,644 | 4,795 | 22,213
Taxes other than income | 3,557 | 6,846 | 9,812 | 29,149
Gathering and other | 18,404 | 10,886 | 30,782 | 34,640
Restructuring |  | 1,275 | 128 | 2,080
General and administrative | 19,731 | 39,195 | 49,196 | 86,966
Depletion, depreciation and accretion | 20,310 | 35,940 | 52,397 | 100,788
(Gain) loss on sale of oil and natural gas properties | 1,331 | (491,830) | 7,235 | (727,520)
Total operating expenses | 70,086 | (376,246) | 169,849 | (392,862)
Income (loss) from operations | (8,491) | 473,199 | (3,584) | 745,550
Other income (expenses): |  |  |  |
Net gain (loss) on derivative contracts | (60,406) | (22,415) | (66,603) | 28,139
Interest expense and other | (12,940) | (19,330) | (30,522) | (63,808)
Gain (loss) on extinguishment of debt |  | (29,167) |  | (86,065)
Total other income (expenses) | (73,346) | (70,912) | (97,125) | (121,734)
Income (loss) before income taxes | (81,837) | 402,287 | (100,709) | 623,816
Income tax benefit (provision) |  | 17,000 |  | 5,000
Net income (loss) | (81,837) | 419,287 | (100,709) | 628,816
Non-cash preferred dividend |  |  |  | (48,007)
Net income (loss) available to common stockholders | $ (81,837) | $ 419,287 | $ (100,709) | $ 580,809
Net income (loss) per share of common stock: |  |  |  |
Basic (in dollars per share) | $ (0.52) | $ 2.85 | $ (0.64) | $ 4.56
Diluted (in dollars per share) | $ (0.52) | $ 2.82 | $ (0.64) | $ 4.52
Weighted average common shares outstanding: |  |  |  |
Basic (in shares) | 158,011 | 146,944 | 156,628 | 127,458
Diluted (in shares) | 158,011 | 148,490 | 156,628 | 128,410
Total oil, natural gas and natural gas liquids sales |  |  |  |
Oil, natural gas and natural gas liquids sales: |  |  |  |
Total operating revenues | $ 61,245 | $ 96,590 | $ 165,652 | $ 351,302
Oil |  |  |  |
Oil, natural gas and natural gas liquids sales: |  |  |  |
Total operating revenues | 53,918 | 88,256 | 145,743 | 319,472
Natural gas |  |  |  |
Oil, natural gas and natural gas liquids sales: |  |  |  |
Total operating revenues | 1,407 | 2,886 | 5,286 | 15,051
Natural gas liquids |  |  |  |
Oil, natural gas and natural gas liquids sales: |  |  |  |
Total operating revenues | $ 5,920 | $ 5,448 | $ 14,623 | $ 16,779

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