Related by context. Frequent words. (Click for all words.) 58 Petrolifera 49 Pacific Rubiales Energy 48 Canoro 48 Enterra Energy 47 GMXR 46 Cequence 46 PanOcean 46 Newfield Exploration Company 45 Comstock Resources 45 Pacific Rubiales 45 Enerplus Resources Fund 45 ProspEx 45 GeoResources Inc. 45 Whiting Petroleum Corporation 45 Concho Resources Inc. 45 BNK 44 PetroQuest 44 Transeuro 44 Parallel Petroleum 44 Royale Energy 44 EXCO 44 Pan Orient 44 GEOCAN 44 Brigham Exploration Company 43 Legacy Reserves 43 Petrominerales 43 Brigham Exploration 43 Gran Tierra 43 Vanguard Natural Resources 43 Culane 42 Encore Acquisition Company 42 Canacol 42 Brazauro 42 Magnum Hunter 42 Harvest Natural Resources 42 Mooncor 42 Fairborne 42 Pengrowth 42 Divestco 42 Crimson Exploration 41 Petro Vista 41 NYSE RRC 41 CanArgo 41 farmout 41 InterOil 41 DCP Midstream Partners LP 41 PetroBakken 41 Copano Energy LLC 41 PrimeWest 41 Questerre 41 Cano Petroleum 41 WesternZagros 41 Addax Petroleum 41 Petro Andina 40 Quicksilver Resources 40 Canexus 40 Callon Petroleum Company 40 Hiland Partners LP 40 Keyera 40 GeoResources 40 Gastar 40 Vior 40 Comaplex 40 Whiting Petroleum 40 Drillsearch 39 Enerplus 39 Gran Tierra Energy 39 Newfield Exploration 39 Ivanhoe Energy 39 BPZ Energy 39 BPO Properties 39 Stratic 39 Baytex 39 EnQuest 39 Approach Resources 39 AHGP 39 NGLs 39 operatorship 39 NGL 39 Twin Butte 39 JED 39 WesternOne Equity 39 Vangold 38 BPZ 38 SandRidge Energy Inc. 38 CVR Energy 38 MarkWest 38 liquids NGL 38 Targa Resources Partners LP 38 NFX 38 Petroflow 38 ERHC 38 TXCO 38 Rare Element 38 Exco 38 MarkWest Energy Partners 38 Magellan Midstream Partners LP 38 GreenHunter Energy 38 MMLP 37 Oilsands Quest 37 Kitimat LNG