A 7.2-cent increase in diesel prices during the week ending Oct. 8 marks the largest single-week change since September 2017 and brings prices to a new 2018 high, according to weekly numbers from the Department of Energy.
The U.S.’ average price for a gallon of on-highway diesel is now $3.385. During the most recent week, prices increased in all regions with the most significant increase being seen in the Gulf Coast region, where prices jumped by 9 cents.
California continues to hold the nation’s most expensive fuel prices, by far, at $4.111 per gallon, followed by the West Coast less California region at $3.558 per gallon.
The cheapest fuel can be found in the Gulf Coast region at $3.169 per gallon, followed by the Lower Atlantic region at $3.243 per gallon.
Prices in other regions, according to the DOE, are:
- New England – $3.344
- Central Atlantic – $3.531
- Midwest – $3.351
- Rocky Mountain – $3.39
ProMiles’ numbers during the week also saw fuel prices jump by 7.2 cents, bringing its national average to $3.314 per gallon.
According to ProMiles’ Fuel Surcharge Index, the most expensive diesel can be found in California at $4.067 per gallon, and the cheapest can be found in the Gulf Coast region at $3.164 per gallon.
