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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Revenues: |  |  |  |
Revenues | $ 197,982 | $ 204,145 | $ 387,867 | $ 417,440
Cost of sales (excluding depreciation and amortization expense): |  |  |  |
Selling, general and administrative | 25,162 | 27,646 | 52,715 | 62,297
Depreciation and amortization | 47,248 | 51,896 | 95,020 | 105,823
Long-lived asset impairment | 5,508 | 13,808 | 13,753 | 23,668
Restatement and other charges | 1,920 | 434 | 2,721 | 434
Restructuring and other charges | 366 | 3,004 | 823 | 11,069
Interest expense | 22,504 | 21,177 | 43,925 | 41,477
Debt extinguishment costs | 0 | 0 | 291 | 0
Other income, net | (962) | (181) | (1,756) | (2,170)
Total costs and expenses | 203,598 | 211,003 | 407,173 | 434,358
Loss before income taxes | (5,616) | (6,858) | (19,306) | (16,918)
Benefit from income taxes | (1,580) | (4,500) | (1,257) | (7,834)
Loss from continuing operations | (4,036) | (2,358) | (18,049) | (9,084)
Loss from discontinued operations, net of tax | 0 | (26) | 0 | (26)
Net loss | (4,036) | (2,384) | (18,049) | (9,110)
Less: Net (income) loss attributable to the noncontrolling interest | (2,651) | (2,093) | (323) | 2,814
Net loss attributable to Archrock stockholders | $ (6,687) | $ (4,477) | $ (18,372) | $ (6,296)
Basic loss per common share: |  |  |  |
Net loss attributable to Archrock common stockholders (in dollars per share) | $ (0.10) | $ (0.07) | $ (0.27) | $ (0.10)
Diluted loss per common share: |  |  |  |
Net loss attributable to Archrock common stockholders (in dollars per share) | $ (0.10) | $ (0.07) | $ (0.27) | $ (0.10)
Weighted average common shares outstanding used in loss per common share: |  |  |  |
Basic (in shares) | 69,588 | 69,021 | 69,496 | 68,922
Diluted (in shares) | 69,588 | 69,021 | 69,496 | 68,922
Dividends declared and paid per common share (in dollars per share) | $ 0.1200 | $ 0.095 | $ 0.2400 | $ 0.2825
Contract Operations |  |  |  |
Revenues: |  |  |  |
Revenues | $ 151,114 | $ 162,973 | $ 301,098 | $ 339,212
Cost of sales (excluding depreciation and amortization expense): |  |  |  |
Costs of sales (excluding depreciation and amortization expense) | 62,243 | 58,866 | 126,340 | 127,045
Aftermarket Services |  |  |  |
Revenues: |  |  |  |
Revenues | 46,868 | 41,172 | 86,769 | 78,228
Cost of sales (excluding depreciation and amortization expense): |  |  |  |
Costs of sales (excluding depreciation and amortization expense) | $ 39,609 | $ 34,353 | $ 73,341 | $ 64,715

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