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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
OPERATING REVENUES |  |
Operating revenues | $ 370,395 | $ 633,424
Gain on derivative instruments | 16,062 | 8,257
TOTAL OPERATING REVENUES | 386,457 | 641,681
OPERATING EXPENSES |  |
Direct operations | 17,244 | 18,334
Transportation and gathering | 143,332 | 137,333
Taxes other than income | 3,738 | 5,847
Exploration | 2,190 | 6,044
Depreciation, depletion and amortization | 100,135 | 92,258
General and administrative | 33,429 | 31,090
TOTAL OPERATING EXPENSES | 300,068 | 290,906
Earnings (loss) on equity method investments | (59) | 3,684
Gain (loss) on sale of assets | 71 | (1,500)
INCOME FROM OPERATIONS | 86,401 | 352,959
Interest expense, net | 14,211 | 12,181
Other expense | 66 | 144
Income before income taxes | 72,124 | 340,634
Income tax expense | 18,214 | 77,871
NET INCOME | $ 53,910 | $ 262,763
Earnings per share |  |
Basic (in dollars per share) | $ 0.14 | $ 0.62
Diluted (in dollars per share) | $ 0.13 | $ 0.62
Weighted-average common shares outstanding |  |
Basic (in shares) | 398,343 | 423,116
Diluted (in shares) | 399,897 | 425,189
Natural gas |  |
OPERATING REVENUES |  |
Operating revenues | $ 370,340 | $ 633,174
Other |  |
OPERATING REVENUES |  |
Operating revenues | $ 55 | $ 250

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