Name
 | URL | Country
| Market Cap (US$)
|
|---|
| Halliburton Company | http://www.halliburton.com | United States | 16,608 |
| Nabors Exchangeco (Canada) Inc. | http://www.nabors.com | Bermuda | 9,108 |
| BJ Services Company | http://www.bjservices.com | United States | 3,430 |
| China Oilfield Services Ltd | http://www.cnoocs.com/ | China | 3,141 |
| Pride International, Inc. | http://www.prde.com | United States | 3,082 |
| Mohammad Al-Mojil Group | http://www.almojilgroup.com/ | Saudi Arabia | 1,765 |
| Oceaneering International, Inc. | http://www.oceaneering.com/ | United States | 1,734 |
| Core Laboratories N.V. | http://www.corelab.com | Netherlands | 1,715 |
| Atwood Oceanics, Inc. | http://www.atwd.com/ | United States | 1,618 |
| Slavneft-Megionneftegaz | http://www.slavneft.ru | Russia | 1,558 |
| Superior Energy Services, Inc. | http://www.superiorenergy.com | United States | 1,419 |
| Helix Energy Solutions Group Inc | http://www.helixesg.com | United States | 1,325 |
| OPTI Canada Inc. | http://www.opticanada.com | Canada | 1,312 |
| Hunting plc | http://www.hunting.plc.uk | United Kingdom | 1,289 |
| Trican Well Service Ltd | http://www.trican.ca/ | Canada | 1,285 |
| Subsea 7 Inc. | http://www.subsea7.com | Cayman Islands | 1,265 |
| Downer EDI Limited | http://www.downeredi.com | Australia | 1,170 |
| Gulf International Services QSC | NA | Qatar | 995 |
| RPC, Inc. | http://www.rpc.net | United States | 955 |
| Maridive & Oil Services | http://www.maridivegroup.com | Egypt | 929 |
|
