Related by context. Frequent words. (Click for all words.) 69 Hydrocarbon 65 hydrocarbons 60 hydrocarbon 51 Ecopetrol 51 Petroleum 51 Repsol YPF 50 Repsol 48 petroleum 48 Ecopetrol SA 48 Sonatrach 47 Minerals 46 YPFB 45 Galp Energia 45 Spain Repsol 45 Cepsa 45 Mineral Resources 45 tcf 45 Perenco 45 ENAP 45 Petrobras 45 gas condensate 45 subsalt 45 hydrocarbon reserves 44 Repsol YPF SA 44 Santos Basin 44 deepwater 44 oil 44 Tullow Oil 44 shale gas 44 Oil Shale 44 Camisea 44 Exploration 44 Spain Repsol YPF 44 liquid hydrocarbons 44 Oil 44 Pacific Rubiales 44 Petrotech 43 Eni 43 Petroleum Exploration 43 ONGC Videsh 43 Cairn Energy 43 IOCs 43 Shale 43 Production Sharing Agreement 43 Natural Gas 42 deepwater exploration 42 oilfields 42 Sonangol 42 Energy 42 natural gas 42 operatorship 42 Mining 42 Shale Gas 42 Harvest Natural Resources 42 Petroceltic 42 Cairn India 42 ONGC 42 Pdvsa 42 Bitumen 42 UKCS 41 hydrocarbon bearing 41 BG Group 41 OVL 41 shale deposits 41 Gas 41 Galoc 41 MMboe 41 Maersk Oil 41 shale 41 recoverable reserves 41 PEMEX 41 Tcf 41 Petrominerales 41 South Pars 41 exploration 40 Petrochemicals 40 RIL 40 Mines 40 Orinoco Belt 40 commerciality 40 Biofuels 40 Christophe de Margerie 40 Formation 40 Geology 40 KG basin 40 Renewable Energy 40 Petrobangla 39 subsoil 39 Coal Bed Methane 39 gas 39 Petroecuador 39 Galp 39 BPZ Energy 39 NYSE TOT 39 gas hydrates 39 Maurel & 39 Gases 39 Wintershall 39 PDVSA 39 Stratic 39 TotalFinaElf