Goldman Sachs' 3 Themes For Oil Refiners In 2H2015 By: Benzinga via Benzinga July 14, 2015 at 13:50 PM EDT Oil refiner stocks are outperforming the S&P by 21 percent and the XLE ETF by 29 percent in 2015. Although upside seems quite ... Read More >> Related Stocks: Delek Logistics Partners LP Marathon Petroleum Phillips 66 Valero Energy