Energy stocks lower; Baker Hughes off 4% By: MarketWatch October 19, 2012 at 11:13 AM EDT Energy stocks trade mostly lower Friday, with oil-field services company Baker Hughes Inc tanking more than 4% after it misses Wall Street estimates. Read More >> Related Stocks: Baker Hughes Inc Chevron Corp Energy Select Sector SPDR Exxon Mobil Halliburton Co Schlumberger Ltd Tesoro Petroleum Co Valero Energy