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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Operating revenues: |  |  |  |  |
Oil and natural gas |  | $ 4,284 | $ 6,027 | $ 12,973 | $ 20,343
Total operating revenues |  | 206,133 | 422,251 | 668,979 | 1,552,711
Operating costs and expenses: |  |  |  |  |
Contract drilling |  | 74,517 | 136,718 | 219,218 | 503,376
Pressure pumping |  | 77,221 | 138,597 | 234,580 | 494,078
Oil and natural gas |  | 1,846 | 2,519 | 5,586 | 8,096
Depreciation, depletion, amortization and impairment |  | 163,464 | 332,151 | 511,209 | 689,457
Impairment of goodwill |  |  | 124,561 |  | 124,561
Selling, general and administrative |  | 16,612 | 18,582 | 51,671 | 58,335
Other operating (income) expense, net | [1] | (4,118) | (1,362) | (10,285) | 4,984
Total operating costs and expenses |  | 329,542 | 751,766 | 1,011,979 | 1,882,887
Operating loss |  | (123,409) | (329,515) | (343,000) | (330,176)
Other income (expense): |  |  |  |  |
Interest income |  | 63 | 323 | 273 | 924
Interest expense, net of amount capitalized |  | (10,244) | (9,254) | (31,722) | (27,044)
Other |  | 19 | 16 | 52 | 16
Total other expense |  | (10,162) | (8,915) | (31,397) | (26,104)
Loss before income taxes |  | (133,571) | (338,430) | (374,397) | (356,280)
Income tax benefit |  | (49,428) | (112,452) | (133,885) | (120,452)
Net loss |  | $ (84,143) | $ (225,978) | $ (240,512) | $ (235,828)
Net loss per common share: |  |  |  |  |
Basic |  | $ (0.58) | $ (1.54) | $ (1.65) | $ (1.61)
Diluted |  | $ (0.58) | $ (1.54) | $ (1.65) | $ (1.61)
Weighted average number of common shares outstanding: |  |  |  |  |
Basic |  | 146,326 | 145,662 | 146,014 | 145,317
Diluted |  | 146,326 | 145,662 | 146,014 | 145,317
Cash dividends per common share |  | $ 0.02 | $ 0.10 | $ 0.14 | $ 0.30
Contract Drilling |  |  |  |  |
Operating revenues: |  |  |  |  |
Oil and gas services |  | $ 123,684 | $ 261,817 | $ 407,578 | $ 951,616
Pressure Pumping |  |  |  |  |
Operating revenues: |  |  |  |  |
Oil and gas services |  | $ 78,165 | 154,407 | $ 248,428 | $ 580,752
Operating costs and expenses: |  |  |  |  |
Impairment of goodwill |  |  | $ 125,000 |  |
[1] | Other operating income (expense) includes net gains or losses associated with the disposal of assets related to corporate strategy decisions of the executive management group. Accordingly, the related gains or losses have been excluded from the operating results of specific segments. This caption also includes expenses related to certain legal settlements net of insurance reimbursements.

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