Diesel fuel prices jumped 5 cents during the week ending Aug. 7, the largest single-week increase since December, according to the Department of Energy’s weekly report.
The 5-cent increase brings the U.S.’ average for a gallon of on-highway diesel to $2.581, the highest prices have been since the week ending May 1. Prices have now increased six straight weeks, climbing 12 cents in that span.
Fuel prices increased in all regions during the week with the most significant increase coming in the Rocky Mountain region, which saw a 5.8-cent climb.
The nation’s most expensive diesel can be found in California at $2.93 per gallon, followed by the Central Atlantic region at $2.751 per gallon.
The cheapest diesel remains in the Gulf Coast region at $2.41 per gallon, followed by the Lower Atlantic region at $2.514 per gallon.
Prices in other regions, according to the DOE, are:
- New England – $2.618
- Midwest – $2.543
- Rocky Mountain – $2.673
- West Coast less California – $2.747
ProMiles’ numbers during the same week had diesel prices increasing by 5.7 cents to $2.552 per gallon nationwide.
According to ProMiles’ Fuel Surcharge Index, the most expensive diesel can be found in California at $2.933 per gallon, and the cheapest can be found in the Gulf Coast region at $2.416 per gallon.