Energy stocks stretch winning streak to second day By: MarketWatch May 21, 2013 at 12:32 PM EDT Energy stocks edge higher, extending a wining streak to a second day as the broader U.S. equity market was mixed. Read More >> Related Stocks: BP Plc ADR Cabot Oil & Gas Chesapeake Energy Chevron Corp ConocoPhillips Energy Select Sector SPDR Exxon Mobil Marathon Petroleum Oil States International Royal Dutch Shell Plc ADR Wpx Energy Inc