WASHINGTON, D.C. --- The U.S. average retail price for regular gasoline rose 0.7 cent to $2.246 per gallon as of Nov. 27. That's 9.2 cents per gallon higher than the average price during the same period last year, according to the Energy Department's Energy Information Administration (EIA). East Coast prices rose 1.9 cents to reach $2.227 per gallon. In the Midwest, prices fell 0.3 cent to $2.206 per gallon. Gulf Coast prices climbed 0.7 cent to $2.121 per gallon. Rocky Mountain prices fell 0.6 cent to $2.235 per gallon. The West Coast saw an increase of 0.2 cent to $2.475 per gallon, but California prices dipped slightly, by 0.2 cent, to hit $2.493 per gallon. Retail diesel fuel prices continued to increase this week, with average nationwide prices rising 1.4 cents to $2.567 per gallon. Prices are now 8.8 cents more than at this time last year, the EIA said. Regionally, East Coast diesel prices were up 1.6 cents to $2.537 per gallon. Midwest prices remained the same, averaging $2.554 per gallon. The Gulf Coast saw the average diesel price go up 2.1 cents to $2.490 per gallon. Rocky Mountain diesel prices rose 3.3 cents to $2.680 per gallon. Diesel prices on the West Coast increased 3.6 cents to $2.760 per gallon, while prices in California rose 2.0 cents to $2.710 per gallon. California prices are 15.1 cents per gallon higher than at this time last year, the EIA said.