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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Operating revenues: |  |  |  |
Other |  | $ 70,760,000 | $ 18,133,000 | $ 24,931,000
Total operating revenues |  | 2,356,684,000 | 915,866,000 | 1,891,277,000
Operating costs and expenses: |  |  |  |
Contract drilling |  | 667,105,000 | 305,804,000 | 608,848,000
Pressure pumping |  | 966,835,000 | 334,588,000 | 612,021,000
Directional drilling |  | 32,172,000 |  |
Other |  | 51,428,000 | 8,384,000 | 11,500,000
Depreciation, depletion, amortization and impairment |  | 783,341,000 | 668,434,000 | 864,759,000
Impairment of goodwill |  |  |  | 124,561,000
Selling, general and administrative |  | 105,847,000 | 69,205,000 | 74,913,000
Merger and integration expenses |  | 74,451,000 |  |
Other operating (income) expense, net | [1] | (31,957,000) | (14,323,000) | 1,647,000
Total operating costs and expenses |  | 2,649,222,000 | 1,372,092,000 | 2,298,249,000
Operating loss |  | (292,538,000) | (456,226,000) | (406,972,000)
Other income (expense): |  |  |  |
Interest income |  | 1,866,000 | 327,000 | 964,000
Interest expense, net of amount capitalized |  | (37,472,000) | (40,366,000) | (36,475,000)
Other |  | 343,000 | 69,000 | 34,000
Total other expense |  | (35,263,000) | (39,970,000) | (35,477,000)
Loss before income taxes |  | (327,801,000) | (496,196,000) | (442,449,000)
Income tax benefit |  | (333,711,000) | (177,562,000) | (147,963,000)
Net income (loss) |  | $ 5,910,000 | $ (318,634,000) | $ (294,486,000)
Net income (loss) per common share: |  |  |  |
Basic |  | $ 0.03 | $ (2.18) | $ (2.00)
Diluted |  | $ 0.03 | $ (2.18) | $ (2.00)
Weighted average number of common shares outstanding: |  |  |  |
Basic |  | 198,447 | 146,178 | 145,416
Diluted |  | 199,882 | 146,178 | 145,416
Cash dividends per common share |  | $ 0.08 | $ 0.16 | $ 0.40
Contract Drilling |  |  |  |
Operating revenues: |  |  |  |
Oil and gas services |  | $ 1,040,033,000 | $ 543,663,000 | $ 1,153,892,000
Operating costs and expenses: |  |  |  |
Impairment of goodwill |  |  |  | 0
Pressure Pumping |  |  |  |
Operating revenues: |  |  |  |
Oil and gas services |  | 1,200,311,000 | $ 354,070,000 | $ 712,454,000
Directional Drilling |  |  |  |
Operating revenues: |  |  |  |
Oil and gas services |  | $ 45,580,000 |  |
[1] | Other operating income (expense), net includes net gains or losses associated with the disposal of assets relate to corporate strategy decisions of the executive management group. Accordingly, the related gains or losses have been separately presented and excluded from the results of specific segments. This caption also includes expenses related to certain legal settlements net of insurance reimbursements.

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