Energy stocks gain, Murphy Oil outperforms By: MarketWatch May 06, 2013 at 11:49 AM EDT Energy stocks edge higher, with Murphy Oil Corp. among the top gainers as it says its chief executive will step down after a spinoff. Read More >> Related Stocks: CONSOL Energy Chevron Corp ConocoPhillips Energy Select Sector SPDR Exxon Mobil Hess Corp Murphy Oil Wpx Energy Inc