For the second consecutive week, the average weekly retail on-highway diesel price surged this week, increasing 6.6 cents to $3.066 a gallon, according to the U.S. Department of Energy.
The national average price is 46.6 cents higher than the same week last year and the highest price since $3.094 the week of May 17.
All of the regions tracked by DOE recorded big increases, topped by an 8.3-cent gain in the Central Atlantic to $3.178. The East Coast gained 6.8 cents to $3.065, while the Midwest increased 6.5 cents to $3.055. The West Coast gained 7.4 cents to $3.239.
The Gulf Coast is the only region to report prices under $3 a gallon, after rising 6.2 cents to $2.982.
For state-by-state diesel prices, updated daily, click here.