The U.S. average retail price of regular gasoline increased 2.3 cents this week to reach $3.94 per gallon, 26 cents per gallon higher than last year at this time. The only decrease came on the West Coast, where the price fell for the first time since December 2011, to reach $4.23 per gallon. Despite seeing the largest increase in the Nation for the fifth consecutive week, the Rocky Mountain price remains the least expensive region at $3.75 per gallon. Moving east of the Rockies, the Gulf Coast and East Coast prices both increased about four cents to reach $3.80 per gallon and $3.91 per gallon, respectively. The Midwest price increased less than a penny to reach $3.91 per gallon.
The national average diesel fuel price decreased 0.5 cent to $4.14 per gallon, 17 cents per gallon higher than last year at this time. The Rocky Mountain and West Coast prices both decreased more than 1 cent to reach $4.13 per gallon and $4.42 per gallon, respectively. East of the Rockies, the Midwest and Gulf Coast prices decreased less than a penny to $4.04 per gallon and $4.05 per gallon, respectively. The East Coast price did not change, and remains at $4.19 per gallon.