Benzinga's Top Upgrades By: Benzinga via Benzinga December 12, 2016 at 08:47 AM EST Wells Fargo upgraded Tesoro Corporation (NYSE: TSO) from Market Perform to Outperform. Tesoro shares fell 0.84 percent to close ... Read More >> Related Stocks: 8X8 Inc Abb Ltd ADR American International Group C.R. Bard Cooper Companies Lululemon Athletica NVR Inc Quest Diagnostics Tesoro Petroleum Co Yamana Gold