Related by context. Frequent words. (Click for all words.) 83 Exxon Mobil 75 Chevron 74 ExxonMobil 69 Exxon Mobil Corp. 66 ConocoPhillips 62 Shell 62 BP 61 Texaco 59 Citgo 57 Lukoil 55 Chevron Corp. 55 Shell Oil 54 oil 54 Royal Dutch Shell 52 Schlumberger 52 Anadarko 52 CNOOC 52 Halliburton 51 Statoil 51 BP PLC 50 PetroChina 50 Petro Canada 50 Exxon Valdez 50 Sinopec 50 Mobil 49 Unocal 49 EnCana 48 gas 48 Marathon Oil 48 Rosneft 48 Petrobras 47 Sunoco 47 TNK BP 47 Eni 47 Suncor 47 Repsol 47 Valero 46 Chesapeake Energy 46 BP Plc 46 PDVSA 46 DuPont 46 Gazprom 45 Dow Chemical 45 Occidental 45 Saudi Aramco 45 CNPC 44 Fluor 44 Oil 44 oil sands 44 Yukos 44 Pemex 43 Wal Mart 43 refinery 43 Petroleum 43 refineries 43 Transocean 43 oilsands 43 offshore drilling 43 petroleum 43 Prudhoe Bay 43 North Slope 43 crude oil 42 TransCanada 42 BHP 42 BHP Billiton 42 BASF 42 refining margins 42 Hess 41 Altria 41 Merck 41 Valero Energy 41 Sasol 41 Refining 41 gasoline 40 RIL 40 Gas 40 refining 40 Burger King 40 petrochemical 40 BG Group 40 OMV 40 oilfield 40 natural gas 40 drillers 40 Mirant 40 deepwater 39 Talisman 39 Sakhalin 39 LNG 39 Monsanto 39 convenience store 39 refiners 39 oil spill 39 Newmont 39 liquefied natural gas 39 CVS 39 crude 39 NNPC 39 Philip Morris 38 KBR 38 ANWR