| (Values in U.S. Thousands) | Dec, 2017 | Dec, 2016 | Dec, 2015 | Dec, 2014 | Dec, 2013 |
| Sales | 2,619,970 | 2,293,430 | 3,767,990 | 5,407,720 | 4,376,810 |
| Sales Growth | +14.24% | -39.13% | -30.32% | +23.55% | +24.77% |
| Net Income | 4,890 | -1,724,160 | 172,800 | 1,224,280 | 1,069,880 |
| Net Income Growth | +100.28% | -1,097.78% | -85.89% | +14.43% | +47.52% |
China Oilfield Services Ltd ADR (CHOLY)
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China Oilfield Services Limited engages in the provision of drilling services, well services, marine support and transportation services and geophysical services in offshore China. The drilling services segment provides oilfield drilling services while the well services segment is engaged in providing logging and downhole services, such as drilling fluids, directional drilling, cementing and well completion. Services offered by marine support and transportation segment include transportation of materials, supplies and personnel to offshore facilities; moving and positioning drilling structures; transportation of crude oil and refined products and the transportation of methanol or other petrochemical products, and the geophysical services segment is engaged in the provision of offshore seismic data collection, marine surveying and data processing services. China Oilfield Services Limited is based in Beijing, the Peoples' Republic of China.
Fiscal Year End Date: 12/31