Related by context. Frequent words. (Click for all words.) 68 Alange Energy 68 Pacific Rubiales Energy 66 Canacol 65 Harvest Natural Resources 64 Gran Tierra 63 Etrion 62 Pacific Rubiales 62 Brownstone Ventures Inc. 61 Petro Vista 61 Petro Andina 61 PanOcean 61 VAALCO Energy 61 Petrolifera 60 BPZ Energy 60 PetroGlobe 60 Abraxas Petroleum 59 Candax 59 Lundin Petroleum AB 59 BPZ 59 Petrodelta 59 Vast Exploration Inc. 59 Ecopetrol 58 Petrominerales 58 Macusani Yellowcake Inc. 58 Concho Resources 58 Pequiven 57 Bridas 57 Petaquilla 57 Goldnev 57 QRCP 57 Farmout Agreement 57 CAMAC Energy 57 TVI Pacific 56 Pluspetrol 56 Pan Andean 56 Ecopetrol SA 56 Crocotta 56 Petaquilla Minerals Ltd. 56 Exterran 56 Magnum Hunter Resources 56 EnerGulf 56 Petrolympic 56 Xtierra 56 Transmeridian 56 QGX 56 Gasco Energy 56 Iberian Minerals Corp. 56 Petaquilla Copper 56 PetroQuest 56 Cano Petroleum 56 BBEP 55 Zincore 55 Manas Petroleum 55 Abraxas Energy 55 NGAS Resources 55 Geotec 55 Norsemont 55 Lundin Mining Corporation 55 Vior 55 DCP Midstream Partners 55 BPZ Resources Inc. 55 Talisman Energy Inc 55 Baytex Energy Trust 55 Eurogas 55 Exco Resources 55 Lithium Americas 55 CMQ 55 Teck Cominco Limited 55 farmout agreement 55 ProspEx 55 Occidental Petroleum Corporation 55 PNM Resources NYSE 55 Bankers Petroleum 55 Lundin Petroleum 55 Colombia Goldfields 55 GeoPetro 55 NYSE OXY 55 Copano Energy LLC 55 NYSE WLL 54 Enterra Energy 54 Stratic 54 Gerdau SA 54 Targa Resources Partners LP 54 Rio Narcea 54 Chariot Resources 54 Sonoran Energy 54 Gran Tierra Energy 54 Explorator 54 RANGE RESOURCES CORPORATION 54 NOVATEK 54 EnQuest 54 VeraSun Energy Corporation 54 Candente Gold 54 Aurcana 54 Brazauro 54 Venezuela PDVSA 54 CanArgo 54 Ivanhoe Energy 54 Petromin 54 Crimson Exploration 54 Fomento Economico Mexicano