NEW YORK, Feb 18 : U.S. stocks edged higher and crude oil prices rebounded on Wednesday as investors awaited the minutes from the U.S. Federal Reserve's most recent policy meeting and assessed shifting geopolitical developments. Technology shares helped boost all three major U.S. indexes early in the session, while gold rebounded as Ukraine peace talks ended without a clear resolution. "Tech has obviously struggled year-to-date," said Ryan Detrick, chief market strategist at Carson Group in