For the week ending July 8, 2019, the U.S. Energy Information Administration reports that average on-highway diesel fuel prices in the United States were up $0.013 per gallon from the preceding week to $3.055/gallon.
The highest diesel fuel prices in the nation were in California at $3.953/gallon and were the lowest in the Gulf Coast region at $2.804 per gallon. But as compared to this time last year, average U.S. diesel prices were down 18.8 cents per gallon.