The U.S. average retail price of regular gasoline decreased less than a penny to $2.22 per gallon, down 77 cents per gallon from the same time last year. The Midwest price increased four cents to $2.27 per gallon. The Rocky Mountain price was down six cents to $2.24 per gallon. The West Coast and Gulf Coast prices each decreased three cents to $2.65 per gallon and $1.92 per gallon, respectively. The East Coast price decreased one cent to $2.11 per gallon.