Name
 | URL | Country
| Market Cap (US$)
|
|---|
| Baker Hughes Inc. | http://www.bakerhughes.com | United States | 11,528 |
| Weatherford International Limited | http://www.weatherford.com | United States | 9,999 |
| Smith International, Inc. | http://www.smith-intl.com | United States | 8,217 |
| Cameron International Corporation | http://www.c-a-m.com | United States | 5,675 |
| FMC Technologies, Inc. | http://www.fmctechnologies.com | United States | 4,774 |
| Aker Solutions ASA | http://www.akerkvaerner.com/ | Norway | 2,732 |
| Oil States International | http://www.oilstates.com | United States | 1,089 |
| Dril-Quip, Inc. | http://www.dril-quip.com | United States | 1,082 |
| Pason Systems Inc. | http://www.pason.com | Canada | 828 |
| Gulfmark Offshore, Inc. | http://www.gulfmark.com | United States | 724 |
| Schoeller-Bleckmann Oilfield Equipment AG | http://www.sbo.co.at/ | Austria | 687 |
| Lufkin Industries, Inc. | http://www.lufkin.com | United States | 657 |
| Honghua Group Ltd | http://www.hh-gltd.com | China | 615 |
| Willbros Group, Inc. | http://www.willbros.com | Panama | 574 |
| Modec, Inc | http://www.modec.com | Japan | 561 |
| Natco Group, Inc. | http://www.natcogroup.com/ | United States | 469 |
| AZZ Inc. | http://www.azz.com/ | United States | 348 |
| Scana Industrier AS | http://www.scana-industrier.com | Norway | 266 |
| T-3 Energy Services, Inc. | http://www.t3energyservices.com | United States | 259 |
| United Heavy Machinery (Uralmash-lzhora Group) (UHM) | http://www.omz.ru/ | Russia | 253 |
|
