ssions of gains.U.S. light crude oil for April delivery rose 25 cents to settle at $61.39 a barrel on the New York Mercantile Exchange.That weighed on the stocks of companies that depend directly on fuel prices, including airlines, truckers and railroads.Continental led the list of airline stocks sliding, dragging down the Amex Airline (Charts) index by over 1 percent.Airlines, as well as a variet