US stock indexes edge higher as early rally loses momentumU.S. stock indexes edged higher in afternoon trading Thursday after an early rally lost some of its strength. Energy stocks, which rallied earlier in the week as crude oil prices soared following an attack on key oil facilities in Saudi Arabia, fell the most. The latest gains came as investors weighed a batch of encouraging economic reports, including new data indicating U.S. home sales rose sharply last month and an index of manufacturing activity that came in ahead of analysts' forecasts.