Name
 | URL | Country
| Market Cap (US$)
|
|---|
| Baker Hughes Inc. | http://www.bakerhughes.com | United States | 13,892 |
| Weatherford International Limited | http://www.weatherford.com | United States | 12,367 |
| Smith International, Inc. | http://www.smith-intl.com | United States | 9,422 |
| Cameron International Corporation | http://www.c-a-m.com | United States | 6,298 |
| FMC Technologies, Inc. | http://www.fmctechnologies.com | United States | 4,934 |
| Aker Solutions ASA | http://www.akerkvaerner.com/ | Norway | 3,135 |
| Dril-Quip, Inc. | http://www.dril-quip.com | United States | 1,347 |
| Oil States International | http://www.oilstates.com | United States | 1,299 |
| KNM Group Berhad | http://www.knm-group.com/ | Malaysia | 1,258 |
| Gulfmark Offshore, Inc. | http://www.gulfmark.com | United States | 941 |
| Lufkin Industries, Inc. | http://www.lufkin.com | United States | 880 |
| Pason Systems Inc. | http://www.pason.com | Canada | 877 |
| Schoeller-Bleckmann Oilfield Equipment AG | http://www.sbo.co.at/ | Austria | 849 |
| Honghua Group Ltd | http://www.hh-gltd.com | China | 686 |
| Modec, Inc | http://www.modec.com | Japan | 649 |
| Willbros Group, Inc. | http://www.willbros.com | Panama | 636 |
| Natco Group, Inc. | http://www.natcogroup.com/ | United States | 608 |
| AZZ Inc. | http://www.azz.com/ | United States | 425 |
| BGR Energy Systems Limited | http://www.bgrcorp.com | India | 356 |
| United Heavy Machinery (Uralmash-lzhora Group) (UHM) | http://www.omz.ru/ | Russia | 253 |
|
