Related by context. Frequent words. (Click for all words.) 55 CHC Helicopter 53 Bronco Drilling Company 52 Hercules Offshore 51 BPZ Energy 51 Tetra Technologies 51 Trican 51 PetroQuest Energy Inc. 50 Allis Chalmers Energy 50 Ensco International 50 Cal Dive International 50 OSI Geospatial Inc. 50 FMC Technologies Inc. 50 Hercules Offshore Inc. 50 VAALCO Energy 49 Superior Offshore 49 Dril Quip 49 Trico Marine Services 49 offshore drilling contractor 49 McMoRan Exploration Co. 49 Fugro 48 Newfield Exploration Co. 48 NYSE RIG 48 National Oilwell 48 Baker Hughes BHI 48 Hornbeck Offshore 48 Precision Drilling 48 Newfield Exploration Company 48 Aeroquest 47 Vector Aerospace 47 ENGlobal 47 PetroQuest 47 Pacific Rubiales Energy 47 Harvest Natural Resources 47 Flotek Industries Inc. 47 Cheniere Energy 47 Hornbeck Offshore Services 47 Rosetta Resources 46 ENSCO International 46 OPTI Canada 46 GlobalSantaFe Corp. 46 Atwood Oceanics 46 Crimson Exploration 46 RigNet 46 TODCO 46 Diamond Offshore 46 Petrohawk Energy Corporation 46 Newpark Resources Inc. 46 Overseas Shipholding Group 46 Schlumberger Limited 46 Petrohawk Energy 46 Energy XXI 45 Hyperdynamics 45 Talisman Energy 45 Oceaneering International 45 GeoResources Inc. 45 Héroux Devtek 45 Cougar Helicopters 45 Nabors Industries Ltd. 45 Husky Energy 45 Nexen 45 Talisman Energy Inc. 45 Schlumberger 44 Precision Drilling Trust 44 LINN Energy 44 Diamond Offshore Drilling 44 NuStar Energy 44 Willbros Group 44 Island Fabrication 44 FMC Technologies 44 Pioneer Drilling 44 Acergy 44 NATCO Group 44 Maritrans 44 Cenovus Energy Inc. 44 Cal Dive 43 CapRock 43 Enterra Energy 43 CGGVeritas 43 BP Prudhoe Bay 43 Compton Petroleum 43 Cimarex Energy Co. 43 Baytex Energy Trust 43 ShawCor 43 NYSE OXY 43 Petrohawk 43 Newfield Exploration 43 Petrohawk Energy Corp. 43 Golar LNG 43 SEACOR 43 Caza Oil & 43 Suncor Energy 43 National Oilwell Varco 43 BW Offshore 43 CNRL 43 NYSE SLB 43 Marsulex 43 Technip SA 43 DCP Midstream Partners 42 Halliburton HAL 42 NYSE RDC 42 Ensco