Related by context. Frequent words. (Click for all words.) 72 Ecopetrol 63 Canacol 62 Pacific Rubiales 59 Pacific Rubiales Energy 59 Sonangol 58 Spain Repsol YPF 58 Venezuela PDVSA 58 Pluspetrol 57 Llanos Basin 57 Petróleos de Venezuela 55 Petrobras PBR 55 Petrobras 55 ENAP 55 Repsol YPF SA 54 Galp Energia 54 PDVSA 54 BOGOTA Dow Jones 54 Repsol 54 Petrominerales 54 KazMunaiGas 54 Occidental Petroleum Corporation 54 YPF 53 SA PDVSA 53 Cepsa 53 Penoles 53 Galoc 53 Gran Tierra 53 Petroleo Brasileiro SA 53 Petroleos de Venezuela PDVSA 53 Uzbekneftegaz 53 ONGC Videsh Ltd. 53 Production Sharing Agreement 53 KazMunayGas 53 Bridas 53 Repsol YPF 52 PdVSA 52 OAO Lukoil 52 Petroecuador 52 Petropars 52 Petrodelta 52 Exxon Mobil XOM.N 52 Petrobas 52 NYSE OXY 52 Petro Vista 51 Harvest Natural Resources 51 Spain Repsol 51 Sonatrach 51 BPZ Energy 51 Socar 51 Endiama 51 Frontera Resources 51 CNPC 51 YPFB 51 BPZ 51 Tullow Oil Plc 51 Malaysia Petronas 51 OMEL 51 Tullow Oil plc 50 Quifa 50 Petrolifera 50 StatoilHydro ASA 50 Eni SpA E 50 Galp 50 NOVATEK 50 Petrovietnam 50 LUKoil 50 Gazprom Neft 50 co venturers 50 Panna Mukta 50 Timan Pechora 49 Cosan 49 Targa Resources Partners LP 49 PanOcean 49 ConocoPhillips COP.N 49 Lundin Petroleum 49 Petronas Carigali 49 giant Petroleo Brasileiro 49 PNOC EC 49 Abraxas Petroleum 49 Det norske 49 Eurogas 49 SOCAR 49 Petromin 49 Eletrobras 49 Zarubezhneft 49 Gran Tierra Energy 49 PEMEX 49 Slavneft 49 Tindalo 49 ENI SpA 48 LUKOIL 48 Petroleo Brasileiro 48 Pdvsa 48 Perenco 48 VAALCO Energy 48 Magellan Midstream Partners LP 48 Eni 48 Corp. XOM 48 EPSA 48 Hydrocarbons 48 Wintershall