Related by context. Frequent words. (Click for all words.) 63 Citgo Petroleum Corp. 58 Citgo 52 CITGO 52 ExxonMobil 50 ExxonMobile 50 Tesoro Petroleum 49 BP Amoco 49 Targa Resources 49 Marathon Oil 49 Exxon Mobil 49 Lyondell Chemical Co. 49 Corp. NYSE VLO 48 Tosco 48 Premcor 48 refiner Valero Energy 47 TransMontaigne 47 Lyondell Chemical 47 Chevron Texaco 47 Motiva Enterprises LLC 47 Electricidad de Caracas 47 Pluspetrol 47 Bridas 47 Magellan Midstream Partners 47 Magnum Hunter Resources 47 Chevron 46 Pequiven 46 Motiva Enterprises 46 Marathon Ashland 46 Omega Protein 46 PetroFalcon 46 Westlake Chemical 46 Shell Oil 46 ConocoPhillips 46 ChevronTexaco 46 Amerada Hess 45 Magellan Midstream Partners LP 45 NuStar Energy 45 Ternium SA 45 Florida Crystals 45 Western Refining 45 Conoco Phillips 45 VAALCO Energy 45 Exxon Mobil Corp. 45 BPZ Energy 45 Cheniere Energy 45 Colonial Pipeline 44 Exxon 44 Newfield Exploration Company 44 Harvest Natural Resources 44 Occidental Chemical 44 PetroEcuador 44 Sunoco Logistics Partners LP 44 Petróleos de Venezuela 44 Valero Energy 44 ArcLight Capital 43 Sunoco 43 HOVENSA 43 Saudi Refining 43 Spectra Energy Partners LP 43 GeoMet 43 Leucadia National 43 Occidental Petroleum Corp 43 Concho Resources 43 Chesapeake Energy 43 Hovensa 43 OMDA Oil 42 Pilipinas Shell Petroleum 42 Sunoco Logistics 42 Brazil Petroleo Brasileiro 42 PdVSA 42 MOEX Offshore 42 Cheniere Energy Inc. 42 Exxon Mobil nyse XOM 42 Landry Restaurants 42 Seahawk Drilling Inc. 42 Valero LP 42 Exxon Mobil NYSE XOM 42 Aruba refinery 42 Harken Energy 42 Vetco Gray 42 Cimarex Energy 42 Petrobas 42 Petroperu 42 Denbury Resources 42 Petroleos de Venezuela PDVSA 42 Exco Resources 42 Diamond Shamrock 41 PDVSA 41 Freeport LNG 41 Koch Industries 41 OAO Lukoil 41 Texaco 41 NGAS Resources 41 petroleum refiner 41 McMoRan Exploration 41 Crosstex Energy 41 Targa Resources Partners 41 Copano Energy LLC 41 ConocoPhilips 41 Gruma 41 VeraSun Energy Corporation