Refiners take brunt of selloff as energy falls By: MarketWatch July 16, 2013 at 11:50 AM EDT Energy stocks fall with refiners taking the biggest hit after Marathon Petroleum warns of weaker second-quarter results. Read More >> Related Stocks: BP Plc ADR Chevron Corp ConocoPhillips EOG Resources EQT Corp Energy Select Sector SPDR Exxon Mobil Marathon Petroleum Phillips 66 Tesoro Petroleum Co Valero Energy