lower gasoline prices

U.S. gasoline prices slipped three cents in the past week to a new national average of three dollars and 44 cents a gallon.  Oklahoma prices also fell by three cents to an average of three dollars and four cents per gallon. The cheapest gasoline prices are in the Panhandle. Cimarron County has an average price of two dollars and 75 a gallon. Coal County in the southeast has the highest average price at 3-dollars and 63 cents a gallon.