Segment Information | Segment Information Business Segments Significant financial information relating to our business segments is presented below (in thousands): Three Months Ended September 30, 2017 Products Tubular Services Research & Engineering Corporate & Other Total Revenue $ 18,515 $ 21,999 $ — $ — $ 40,514 Depreciation and amortization 960 3,931 — 443 5,334 Operating loss (2,171 ) (2,305 ) (788 ) (7,439 ) (12,703 ) Other expense 242 Loss before income taxes $ (12,945 ) Three Months Ended September 30, 2016 Products Tubular Services Research & Engineering Corporate & Other Total Revenue $ 16,957 $ 13,458 $ — $ — $ 30,415 Depreciation and amortization 1,395 5,356 — 591 7,342 Operating loss (7,437 ) (7,986 ) (1,248 ) (5,215 ) (21,886 ) Other expense 739 Loss before income taxes $ (22,625 ) Nine Months Ended September 30, 2017 Products Tubular Services Research & Engineering Corporate & Other Total Revenue $ 58,089 $ 59,312 $ — $ — $ 117,401 Depreciation and amortization 2,644 13,058 — 1,457 17,159 Operating loss (3,453 ) (12,533 ) (2,401 ) (18,726 ) (37,113 ) Other expense 247 Loss before income taxes $ (37,360 ) Nine Months Ended September 30, 2016 Products Tubular Services Research & Engineering Corporate & Other Total Revenue $ 54,122 $ 45,332 $ — $ — $ 99,454 Depreciation and amortization 3,862 16,676 2 1,976 22,516 Operating loss (49,329 ) (23,335 ) (4,258 ) (18,938 ) (95,860 ) Other expense 2,176 Loss before income taxes $ (98,036 ) Other Charges As a result of the uncertain prospects for the oilfield services and equipment sector and the impact on our business outlook, we continued certain cost rationalization efforts that were implemented in 2015 through 2017 . Consequently, we recorded charges in continuing operations related to headcount reductions and office closures. The following table presents these charges and the related income statement classification to which the charges are included for the three and nine months ended September 30, 2017 and 2016 (in thousands): Three Months Ended Nine Months Ended Severance Facility Closures Severance Facility Closures Income Statement Classification Products $ 159 $ 303 $ 349 $ 374 Cost of sales and services - Products Tubular Services 454 305 707 478 Cost of sales and services - Services Corporate & Other — — (37 ) — Selling, general and administrative $ 613 $ 608 $ 1,019 $ 852 Three Months Ended Nine Months Ended Severance Facility Closures Severance Facility Closures Income Statement Classification Products $ 75 $ — $ 1,487 $ 25 Cost of sales and services - Products Tubular Services 193 15 1,715 737 Cost of sales and services - Services Corporate & Other — — 90 131 Selling, general and administrative $ 268 $ 15 $ 3,292 $ 893 Geographic Areas We attribute revenue to geographic regions based on the location of the customer. Generally, for service activities, this will be the region in which the service activity occurs. For equipment sales, this will be the geographical region in which the product is initially deployed. Our revenue by geographic area for the three and nine months ended September 30, 2017 and 2016 was as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 United States $ 15,364 $ 9,035 $ 44,822 $ 33,969 Europe, Africa and Middle East 8,341 9,542 22,204 25,914 Asia Pacific 3,390 1,536 6,697 7,493 Russia 6,881 3,883 24,359 11,509 Latin America 5,070 5,631 13,323 17,246 Canada 1,468 788 5,996 3,323 $ 40,514 $ 30,415 $ 117,401 $ 99,454 The location of our net property, plant and equipment by geographic area as of September 30, 2017 and December 31, 2016 was as follows (in thousands): September 30, 2017 Products Tubular Services Overhead, Corporate & Other Total United States $ 5,790 $ 27,915 $ 7,739 $ 41,444 Europe, Africa and Middle East 6,145 9,636 2,245 18,026 Asia Pacific 3,906 6,012 353 10,271 Russia 10,570 1,201 4 11,775 Latin America 17,684 937 — 18,621 Canada 1,402 842 4,461 6,705 $ 45,497 $ 46,543 $ 14,802 $ 106,842 December 31, 2016 Products Tubular Services Overhead, Corporate & Other Total United States $ 6,959 $ 32,227 $ 9,232 $ 48,418 Europe, Africa and Middle East 6,263 10,355 2,308 18,926 Asia Pacific 3,417 9,315 478 13,210 Russia 10,956 954 7 11,917 Latin America 19,579 2,428 209 22,216 Canada 324 1,020 4,712 6,056 $ 47,498 $ 56,299 $ 16,946 $ 120,743 Major Customers and Credit Risk |