Valero, Tesoro could by vying for Citgo refinery assets, report says By: San Antonio Business Journal via Business Journals September 10, 2014 at 13:39 PM EDT San Antonio refiners Valero Energy Corp. and Tesoro Corp. are listed among two possible bidders for Citgo Petroleum Corp... Read More >> Related Stocks: Hollyfrontier Corp Lazard Inc Tesoro Petroleum Co Valero Energy iPath Dow Jones-Goldman Sachs Crude Oil Fund