WASHINGTON (AFX) -- U.S. retail gasoline prices jumped by 14 cents to an average of $2.55 a gallon last week, the Energy Department said Monday. It's the highest average price since late October. It's the biggest one-week increse since the first week of September, after Hurricane Katrina knocked out the energy infrastructure in the Gulf Coast.
Regular gas prices rose 13.8 cents to $2.50, while premium gas cost an average $2.70, up 14.5 cents. Prices rose in every region of the nation, with the biggest increases in the Gulf Coast and the Lower Atlantic states. The Rockies had the cheapest gas at $2.44 a gallon. The most expensive gas was in California at $2.68.