Related by context. Frequent words. (Click for all words.) 59 PdVSA 58 Repsol 58 Tullow 58 Ecopetrol 56 Petrobras 56 PDVSA 55 operatorship 54 Pdvsa 54 Repsol YPF SA 54 Statoil 53 Petroecuador 52 Afren 52 Total SA TOT 52 Repsol YPF 52 Sonangol 52 Italy Eni 52 StatoilHydro 51 Lundin Petroleum 51 Tullow Oil 51 Maurel & 51 Norway Statoil 51 Eni 50 PEMEX 50 Italy Eni SpA 50 Maersk Oil 50 Malaysia Petronas 50 Campos Basin 49 Addax Petroleum 49 Wintershall 49 GDF Suez 48 Petrolifera 48 Sonatrach 48 Addax 47 Kosmos Energy 47 CNPC 47 Talisman Energy 47 Cairn 46 Gas Natural 46 deepwater 46 GNPC 46 OML 46 Talisman 46 OVL 46 Royal Dutch Shell 46 Agip 46 Eni SpA 46 BG Group 46 Petroplus 46 oilfields 46 DNO 46 KG basin 46 subsalt 45 Lukoil 45 Statoil ASA 45 Yugansk 45 Cairn Energy 45 Oilexco 45 Galp 45 Chevron 45 Hydrocarbons 45 Production Sharing Contract 45 Amerada Hess 45 Verenex 45 Centrica 45 Shell 45 IOCs 45 Dana Petroleum 45 Pemex 44 YPF 44 deepwater exploration 44 Exxon Mobil 44 ONGC Videsh 44 ConocoPhillips 44 LUKOIL 44 commerciality 44 Santos Basin 44 PTTEP 44 KG D6 44 Hyperdynamics 44 CANTV 44 oil 44 Gazprom Neft 44 Occidental 44 Christophe de Margerie 44 OPL 44 Harvest Natural Resources 44 Roc Oil 44 Ecuador 43 CGGVeritas 43 Sao Tome 43 Bonga 43 ChevronTexaco 43 CNOOC 43 Anadarko 43 GDF 43 Petroleos de Venezuela 43 Corvina 43 Suez 43 Expro 43 Kosmos 43 YPFB