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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Revenues and other income: |  |  |  |
Operating revenues | $ 662,103 | $ 519,729 | $ 1,856,008 | $ 1,688,891
Earnings (losses) from unconsolidated affiliates | 4 | 2 | 6 | (221,918)
Investment income (loss) | 373 | 310 | 208 | 923
Total revenues and other income | 662,480 | 520,041 | 1,856,222 | 1,467,896
Costs and other deductions: |  |  |  |
Direct costs | 441,263 | 306,436 | 1,246,428 | 1,012,738
General and administrative expenses | 65,010 | 56,078 | 192,114 | 175,036
Research and engineering | 12,960 | 8,476 | 36,060 | 24,818
Depreciation and amortization | 217,075 | 220,713 | 628,837 | 655,444
Interest expense | 54,607 | 46,836 | 165,813 | 137,803
Other, net | 5,559 | 10,392 | 29,173 | 267,403
Total costs and other deductions | 796,474 | 648,931 | 2,298,425 | 2,273,242
Income (loss) from continuing operations before income taxes | (133,994) | (128,890) | (442,203) | (805,346)
Income tax expense (benefit): |  |  |  |
Current | 8,644 | 8,600 | 45,646 | 39,323
Deferred | (23,353) | (39,651) | (105,460) | (163,621)
Total income tax expense (benefit) | (14,709) | (31,051) | (59,814) | (124,298)
Income (loss) from continuing operations, net of tax | (119,285) | (97,839) | (382,389) | (681,048)
Income (loss) from discontinued operations, net of tax | (27,134) | (12,187) | (43,077) | (14,097)
Net income (loss) | (146,419) | (110,026) | (425,466) | (695,145)
Less: Net (income) loss attributable to noncontrolling interest | (2,113) | (1,185) | (5,001) | 990
Net income (loss) attributable to Nabors | (148,532) | (111,211) | (430,467) | (694,155)
Amounts attributable to Nabors: |  |  |  |
Net income (loss) from continuing operations | (121,398) | (99,024) | (387,390) | (680,058)
Net income (loss) from discontinued operations | (27,134) | (12,187) | (43,077) | (14,097)
Net income (loss) attributable to Nabors | $ (148,532) | $ (111,211) | $ (430,467) | $ (694,155)
Earnings (losses) per share: |  |  |  |
Basic from continuing operations (in dollars per share) | $ (0.42) | $ (0.35) | $ (1.35) | $ (2.41)
Basic from discontinued operations (in dollars per share) | (0.10) | (0.04) | (0.16) | (0.05)
Total Basic (in dollars per share) | (0.52) | (0.39) | (1.51) | (2.46)
Diluted from continuing operations (in dollars per share) | (0.42) | (0.35) | (1.35) | (2.41)
Diluted from discontinued operations (in dollars per share) | (0.10) | (0.04) | (0.16) | (0.05)
Total Diluted (in dollars per share) | $ (0.52) | $ (0.39) | $ (1.51) | $ (2.46)
Weighted-average number of common shares outstanding: |  |  |  |
Basic (in shares) | 279,313 | 276,707 | 278,670 | 276,369
Diluted (in shares) | 279,313 | 276,707 | 278,670 | 276,369
Dividends declared per common share (in dollars per share) | $ 0.06 | $ 0.06 | $ 0.18 | $ 0.18

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