The national retail price for on-highway diesel increased for the fourth straight week, rising 1.2 cents to $3.915 a gallon during the week ended July 29, according to the U.S. Department of Energy’s Energy Information Administration. Diesel prices nationwide are 11.9 cents higher than the same week last year.
Average prices rose in all regions, led primarily by a jump in the Rocky Mountain region of 4.7 cents on average — more than twice as much as the next-largest increase of 2.2 cents in the Central Atlantic region. California — one of only three regions where the average price is above $4 — has the most expensive diesel on average at $4.122 a gallon. The nation’s cheapest diesel on average is $3.845 a gallon in the Gulf Coast Region.
Complete diesel price information is available on EIA’s Website.