Diesel prices rose in most regions. lead by a 2.5-cent increase in the Rocky Mountain region, which still has the nation’s cheapest diesel on average at $4.057 a gallon. Prices dropped on average in four regions, led by a 1.5-cent drop on the West Coast (excluding California). California still has the nation’s most expensive diesel on average at $4.365 a gallon.
Complete diesel price information is available on EIA’s Website.