Related by context. Frequent words. (Click for all words.) 52 Contango Oil & 51 VAALCO Energy 50 Crimson Exploration 50 Magnum Hunter Resources 49 PetroQuest 49 Callon Petroleum Company 49 Tullow Oil plc 48 GeoResources Inc. 48 Form 8K 48 CanArgo 48 Encore Acquisition Company 47 TAG Oil 47 Petro Andina 47 EnerGulf 47 PanOcean 46 EnerVest 46 Petro Reef 46 EnerJex 46 Newfield Exploration Company 46 GHL Acquisition 46 Royale Energy 46 Petroflow 46 Cequence 45 Exterran 45 Questerre 45 Repros Therapeutics Inc. 45 Brigham Exploration Company 45 Concho Resources Inc. 45 Approach Resources 45 Parallel Petroleum 45 Magnum Hunter 45 CAMAC 45 Hercules Offshore 45 NGAS 44 NuLoch 44 Petrosearch 44 InterOil 44 ENSCO International 44 Enterra Energy 44 Brigham Exploration 44 Legacy Reserves 44 FOGL 44 BBEP 44 NYSE RDC 44 OMDA 44 DCP Midstream Partners 43 Hyperdynamics 43 EnQuest 43 Eurogas 43 GeoResources 43 Mooncor 43 Culane 43 Allis Chalmers Energy 43 GeoPetro 43 Vangold 43 Exco Resources 43 Vanguard Natural Resources 43 Cimarex 43 Whiting Petroleum Corporation 43 VAALCO 43 ProspEx 42 Harvest Natural Resources 42 Stratic 42 GMXR 42 Pan Orient 42 Rosetta Resources 42 TexCom 42 McMoRan Exploration Co. 42 Targa Resources Partners LP 42 Copano Energy 42 Gran Tierra 42 EXCO 42 Ocean Rig 42 Flotek 42 GreenHunter Energy 42 Schlumberger Limited 42 Whiting Petroleum 42 CVR Energy 42 QEP Resources 42 BPZ Energy 42 Drillsearch 41 BW Offshore 41 MarkWest Energy Partners 41 Cheniere Energy 41 Petrohawk 41 NYSE MRO 41 Ensco International 41 Grant Prideco 41 Oilsands Quest 41 Bronco Drilling 41 Comaplex 41 Ensco 41 Gastar 41 Teekay LNG 41 EXCO Resources Inc. 41 Atlas Pipeline Partners 40 Highpine 40 Trico Marine Services 40 McMoRan 40 Synenco 40 Brazauro