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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
OPERATING REVENUES |  |  |  |
Operating revenues | $ 641,678 | $ 333,294 | $ 1,526,384 | $ 992,063
(Loss) gain on derivative instruments | (201,282) | (42,253) | (301,641) | 17,783
TOTAL OPERATING REVENUES | 440,396 | 291,041 | 1,224,743 | 1,009,846
OPERATING EXPENSES |  |  |  |
Direct operations | 21,354 | 20,197 | 54,384 | 54,864
Transportation and gathering | 148,794 | 146,982 | 418,984 | 425,563
Taxes other than income | 8,207 | 3,615 | 17,195 | 10,705
Exploration | 3,998 | 3,900 | 8,993 | 10,669
Depreciation, depletion and amortization | 97,289 | 99,649 | 282,986 | 294,406
General and administrative | 65,098 | 24,262 | 117,290 | 80,857
TOTAL OPERATING EXPENSES | 344,740 | 298,605 | 899,832 | 877,064
Loss on equity method investments | 0 | 0 | 0 | (59)
Gain (loss) on sale of assets | 184 | 31 | 275 | (139)
INCOME (LOSS) FROM OPERATIONS | 95,840 | (7,533) | 325,186 | 132,584
Interest expense, net | 12,577 | 14,389 | 37,512 | 43,143
Other expense | 47 | 57 | 139 | 171
Income (loss) before income taxes | 83,216 | (21,979) | 287,535 | 89,270
Income tax expense (benefit) | 20,502 | (7,018) | 68,003 | 19,947
NET INCOME (LOSS) | $ 62,714 | $ (14,961) | $ 219,532 | $ 69,323
Earnings (loss) per share |  |  |  |
Basic (in dollars per share) | $ 0.16 | $ (0.04) | $ 0.55 | $ 0.17
Diluted (in dollars per share) | $ 0.16 | $ (0.04) | $ 0.55 | $ 0.17
Weighted-average common shares outstanding |  |  |  |
Basic (in shares) | 399,664 | 398,580 | 399,459 | 398,500
Diluted (in shares) | 402,738 | 398,580 | 401,923 | 400,628
Natural gas |  |  |  |
OPERATING REVENUES |  |  |  |
Operating revenues | $ 641,625 | $ 333,256 | $ 1,526,202 | $ 991,882
Other |  |  |  |
OPERATING REVENUES |  |  |  |
Operating revenues | $ 53 | $ 38 | $ 182 | $ 181

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