Related by context. Frequent words. (Click for all words.) 57 Ecopetrol 57 Ecopetrol SA EC 55 Ecopetrol SA 54 Canacol 54 BPZ 54 Alange Energy 53 PetroFalcon 53 Harvest Natural Resources 53 Pacific Rubiales 52 Candax 52 Frontera Resources 52 Brazil Petrobras 52 BPZ Energy 51 NOVATEK 51 Tullow Oil plc 50 PanOcean 50 Pacific Rubiales Energy 50 BrazAlta 50 VAALCO Energy 50 CNOOC Limited 49 Self Regulatory Organization 48 Americas Petrogas 48 SeaBird 48 Cheniere Energy 48 ANH 47 TETRA Technologies Inc. 47 KazMunayGas 47 ONGC Videsh Limited 47 Calvalley 47 ENAP 47 co venturers 47 Gran Tierra 47 hydrocarbon 47 Enap 47 LUKOIL 47 GeoPark 47 Patos Marinza 47 PEMEX 47 O2Diesel 47 Tindalo 47 Enarsa 47 Ecometals 46 BOEMRE 46 Petrodelta 46 Stratic 46 Mexico GOM 46 JDZ 46 ENI SpA 46 Llanos Basin 46 MSEV 46 Petrobras 46 Chevron CVX.N 45 Tengizchevroil 45 RussNeft 45 Banco Macro 45 ONGC Videsh Ltd. 45 Galoc 45 CAMAC Energy 45 BW Offshore 45 EcoloCap 45 Quifa 45 Concho Resources 45 unitization 45 Petro Vista 45 Repsol YPF 45 END FOOTNOTE 45 Endesa Chile 45 Geotec 45 LINN Energy 45 Eni SpA E 44 ProSep 44 Det norske 44 Teekay LNG Partners 44 Eurogas 44 Hydrocarbons 44 Petropars 44 Uzbekneftegaz 44 Nova Biosource Fuels 44 Albacora 44 Norway StatoilHydro 44 Production Sharing Agreement 44 Petrobas 44 Camisea 44 OMEL 44 Petrolifera 44 exploration 44 OGJ Online 44 Pluspetrol 44 Nalco Holding 44 Lundin Petroleum AB 44 upstream midstream 44 CPFL Energia 44 Amguri 43 Gazprom Neft 43 LSB Industries 43 Wholesale Electricity 43 PNOC EC 43 PetroVietnam 43 Chicontepec 43 Bridas 43 hydrocarbons