Related by context. Frequent words. (Click for all words.) 48 Tetra Technologies 47 Avro Energy 46 Exco Resources 44 Ensco International 42 Petrohawk Energy 41 GMX Resources 41 MI SWACO 41 Newfield Exploration 41 Nitro Petroleum 40 Frontera Resources 40 Newfield Exploration Company 40 Contango Oil & 40 Presco 39 Petrosearch 39 Gas Pipelines 39 driller 39 EGAS 38 Oneok 38 McMoRan Exploration 38 Transocean Ltd. RIG 38 Newfield Exploration Co. 38 Cimarex Energy Co. 38 Drilling Rig 38 Baker Hughes BHI 38 workover rig 38 Dril Quip Inc. 38 Natural Gas 38 EOG 38 Crimson Exploration 38 Sonoran Energy 37 VAALCO Energy 37 ENSCO International 37 Gas 37 Petsec 37 MegaWest 37 TexCom 36 Denbury Resources 36 Dril Quip 36 Vetco Gray 36 GeoMet 36 Platina Energy Group 36 GeoResources Inc. 36 Concho Resources 36 EOG Resources 36 Oilfield Services 36 Comstock Resources 36 ConocoPhillips COP.N 36 Oceaneering International 36 Royale Energy 36 Atwood Oceanics Inc. 36 PetroQuest 36 Whiting Petroleum 36 NuStar Energy 36 Allis Chalmers Energy 36 Chesapeake Energy 35 Zenergy 35 Kerr McGee 35 Magellan Midstream Partners LP 35 Marathon Ashland 35 NGAS Resources 35 Harvest Natural Resources 35 Cal Dive International 35 Gas Storage 35 Range Resources 35 Calvalley 35 ENI SpA 35 Oil 35 Dawson Geophysical 35 oilfield 35 supermajor 35 Dewatering 35 KazMunayGas 35 BP PLC BP 35 Flotek Industries Inc. 35 Atwood Oceanics 35 Occidental Chemical 35 EOG Resources Inc. 35 Layne Christensen 35 Newpark Resources Inc. 34 ExxonMobile 34 wildcatter 34 Drilling 34 Lundin Petroleum AB 34 Schlumberger 34 Nexen Inc 34 Oilfield 34 Petroleum 34 Trican 34 JKX 34 Rowan Cos. 34 EnerJex 34 Magnum Hunter Resources 34 GeoResources 34 Abraxas Petroleum Corporation 34 Lubricants 34 BP 34 NGAS 34 Empyrean Energy 34 Brigham Exploration 34 Diamond Offshore Drilling 34 Unicorp