Barring unforeseen factors, motorists should see "considerably lower" gas prices this summer than a year ago, Energy Secretary Spencer Abraham said May 2 as energy ministers from the wealthiest nations gathered in Detroit, according to the Detroit Free Press. Daniel Yergin, an expert on energy and globalization, sounded a cautionary note, however, pointing out that conflict in the Middle East could disrupt supplies and drive up prices. Consumers are already paying 20 to 30 cents a gallon more at the pump in a market-driven "fear premium," said Yergin, author of The Commanding Heights and chairman of Cambridge Energy Research Associates.