Tesoro off, First Solar up in mixed energy trade By: MarketWatch January 03, 2013 at 10:35 AM EST Shares of Tesoro, WPX Energy, First Solar, SunPower and Range Resources all make noteworthy early moves. Read More >> Related Stocks: Berkshire Hathaway Berkshire Hathaway Chevron Corp Energy Select Sector SPDR Exxon Mobil First Solar PHLX Oil Service Sector Index Range Resources Standard & Poors 500 Sunpower Corp Tesoro Petroleum Co Wpx Energy Inc