Related by context. Frequent words. (Click for all words.) 81 ChevronTexaco 77 ExxonMobil 75 Exxon 74 Exxon Mobil 71 Chevron Corp. 68 Shell 67 ConocoPhillips 66 Conoco 60 Unocal 59 BP 58 Royal Dutch Shell 57 Texaco 57 Exxon Mobil Corp. 57 Shell Oil 56 Occidental 54 Caltex 54 Lukoil 54 Marathon Oil 54 Tesoro 53 Statoil 53 Eni 53 CNOOC 52 Valero 52 EnCana 51 Anadarko 51 Petro Canada 51 Saudi Aramco 51 Halliburton 51 Citgo 50 oil 50 Petroleum 50 CNPC 49 Schlumberger 49 refinery 49 Repsol 48 Sinopec 48 Suncor 48 Chesapeake Energy 48 StatoilHydro 47 PetroChina 47 Valero Energy 47 Refinery 47 BHP Billiton 47 gas 46 Mobil 46 Dow Chemical 46 petroleum 46 Nexen 46 LNG 46 refineries 46 Sunoco 46 Talisman 46 Tullow 46 BHP 46 Petronas 46 BP Plc 46 BP PLC 46 Fluor 45 BG Group 45 Newmont 45 TNK BP 45 ONGC 44 Mirant 44 crude oil 44 Oil 44 oil sands 44 KBR 44 Woodside 44 Sasol 44 oilfields 43 Pemex 43 Cairn 43 Petrobras 43 Gas 43 Offshore Oil 43 PDVSA 43 Rosneft 43 Halliburton Co. 43 tar sands 43 TransCanada 42 Calpine 42 liquefied natural gas 42 Prudhoe Bay 41 Deepwater 41 OMV 41 Refining 41 oilfield 41 Wal Mart 41 Kinder Morgan 41 Transocean 41 Gazprom 41 DuPont 41 NNPC 41 crude 40 deepwater 40 Safeway 40 oilsands 40 bpd 40 Oil Sands 40 San Ramon 40 Peabody Energy