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v3.8.0.1

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Operating revenues: |  |  |
Drilling - U.S. Land | $ 1,439,523 | $ 1,242,462 | $ 2,523,518
Drilling - Offshore | 136,263 | 138,601 | 241,666
Drilling - International Land | 212,972 | 229,894 | 382,331
Other | 15,983 | 13,275 | 14,187
Total operating revenues | 1,804,741 | 1,624,232 | 3,161,702
Operating costs and expenses: |  |  |
Operating costs, excluding depreciation and amortization | 1,249,317 | 898,805 | 1,703,476
Depreciation and amortization | 585,543 | 598,587 | 608,039
Asset impairment charge |  | 6,250 | 39,242
Research and development | 12,047 | 10,269 | 16,104
General and administrative | 151,002 | 146,183 | 134,712
Income from asset sales | (20,627) | (9,896) | (11,834)
Total operating costs and expenses | 1,977,282 | 1,650,198 | 2,489,739
Operating income (loss) from continuing operations | (172,541) | (25,966) | 671,963
Other income (expense): |  |  |
Interest and dividend income | 5,915 | 3,166 | 5,840
Interest expense | (19,747) | (22,913) | (15,023)
Loss on investment securities |  | (25,989) |
Other | 1,775 | (965) | (901)
Total other income (expense) | (12,057) | (46,701) | (10,084)
Income (loss) from continuing operations before income taxes | (184,598) | (72,667) | 661,879
Income tax provision (benefit) | (56,735) | (19,677) | 241,405
Income (loss) from continuing operations | (127,863) | (52,990) | 420,474
Income (loss) from discontinued operations before income taxes | 3,285 | 2,360 | (124)
Income tax provision (benefit) | 3,634 | 6,198 | (77)
Loss from discontinued operations | (349) | (3,838) | (47)
NET INCOME (LOSS) | $ (128,212) | $ (56,828) | $ 420,427
Basic earnings per common share: |  |  |
Income (loss) from continuing operations (in dollars per share) | $ (1.20) | $ (0.50) | $ 3.88
Loss from discontinued operations (in dollars per share) |  | (0.04) |
Net income (loss) (in dollars per share) | (1.20) | (0.54) | 3.88
Diluted earnings per common share: |  |  |
Income (loss) from continuing operations (in dollars per share) | (1.20) | (0.50) | 3.85
Loss from discontinued operations (in dollars per share) |  | (0.04) |
Net income (loss) (in dollars per share) | $ (1.20) | $ (0.54) | $ 3.85
Weighted average shares outstanding (in thousands): |  |  |
Basic (in shares) | 108,500 | 107,996 | 107,754
Diluted (in shares) | 108,500 | 107,996 | 108,570

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