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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Revenues and other income: |  |
Operating revenues | $ 799,640 | $ 734,194
Earnings (losses) from unconsolidated affiliates | (5) | 2
Investment income (loss) | 9,677 | 465
Total revenues and other income | 809,312 | 734,661
Costs and other deductions: |  |
Direct costs | 520,957 | 475,403
General and administrative expenses | 68,167 | 74,571
Research and engineering | 13,520 | 15,806
Depreciation and amortization | 210,391 | 213,448
Interest expense | 52,352 | 61,386
Other, net | 17,502 | 14,089
Total costs and other deductions | 882,889 | 854,703
Income (loss) from continuing operations before income taxes | (73,577) | (120,042)
Income tax expense (benefit): |  |
Current | 15,862 | 8,771
Deferred | 13,937 | 14,774
Total income tax expense (benefit) | 29,799 | 23,545
Income (loss) from continuing operations, net of tax | (103,376) | (143,587)
Income (loss) from discontinued operations, net of tax | (157) | (75)
Net income (loss) | (103,533) | (143,662)
Less: Net (income) loss attributable to noncontrolling interest | (14,176) | (539)
Net income (loss) attributable to Nabors | (117,709) | (144,201)
Less: Preferred stock dividend | (4,313) |
Net income (loss) attributable to Nabors common shareholders | (122,022) | (144,201)
Amounts attributable to Nabors common shareholders: |  |
Net income (loss) from continuing operations | (121,865) | (144,126)
Net income (loss) from discontinued operations | (157) | (75)
Net income (loss) attributable to Nabors common shareholders | $ (122,022) | $ (144,201)
Earnings (losses) per share: |  |
Basic from continuing operations (in dollars per share) | $ (0.36) | $ (0.46)
Total Basic (in dollars per share) | (0.36) | (0.46)
Diluted from continuing operations (in dollars per share) | (0.36) | (0.46)
Total Diluted (in dollars per share) | $ (0.36) | $ (0.46)
Weighted-average number of common shares outstanding: |  |
Basic (in shares) | 350,764 | 308,788
Diluted (in shares) | 350,764 | 308,788

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