.jpg)  
International Drilling Companies 
· Atwood Oceanics, Inc., USA
· Aztec International Inc., Thailand
· Big 6 Drilling, USA
· CROSCO Integrated Drilling & Well Services Company, Ltd., Croatia
· Cyclone Drilling, Inc., USA
· Diamond Offshore Drilling, Inc., USA
· Dolphin Drilling Ltd., Norway/United Kingdom
· Egyptian Drilling Company, Egypt
· ENSCO International Inc., USA
· Frigstad Offshore Pte. Ltd., Singapore
· Frontier Drilling ASA, Norway
· George N. Mitchell Drilling Co, USA
· Grant Prideco-drilling tools co., USA
· Helmerich & Payne International Drilling Co., USA
· ITAG Tiefbohr GmbH & Co., Germany
· IRoilRigs International LTD, China
· Jindal Drilling & Industries Ltd., India
· KCA Deutag Drilling Ltd., United Kingdom
· Kenai Drilling, USA
· MB Petroleum Services, Sultanate of Oman
· Mesa Drilling, USA
· Nabors Industries Inc, USA
· Nicklos Drilling Company, USA
· Noble Corp., USA
· Oil & Natural Gas Corporation , India
· Parker Drilling Company, USA
· Patterson - UTI Energy Inc, USA
· Paul Graham Drilling, USA
· Pergemine S.p.A., Italy
· Petroleos de Venezuela, S.A. (PDVSA), Venezuela
· Pioneer Drilling Company, USA
· Poszukiwania Nafty i Gazu "NAFTA" Sp. z o.o., Poland
· Precision Drilling International, Canada
· Pride International, USA
· Rompetrol, Romania
· Rowan Companies Inc., USA
· Scandrill Inc., USA
· Schlumberger, France/USA
· Spradling Oil Inc., USA
· SST Energy Corporation, USA
· Superior Energy Services, USA
· S W Jack Drilling Company, USA
· Tesco Corporation (US), USA
· Transocean Inc., USA
· Union Drilling, Inc., USA
· Unit Corporation, USA
· Wisco-Moran Drilling Company, USA
· Zaklad Robot Gorniczych, Poland
| 
