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SEARCHThe national average price of a gallon of diesel decreased by less than a cent this week, and four of five regions reported decreases, with one other region reporting a 6.9-cent increase.
The average price of a gallon of diesel decreased slightly this week, by only 1/10th of a cent.
Work Truck | EIA
As the average price of diesel remains above $5 nationwide and in every region of the U.S., four of the five regions reported small price decreases this week. The national average was 1/10th of a cent lower than a week ago.
The national average price of a gallon of on-highway diesel was $5.64 as reported May 11 by the U.S. Energy Information Administration (EIA).
However, the weekly report also provides a year-over-year pricing comparison, showing the national average is now $2.16 higher than in 2025 and $1.79 higher than the same time in 2024.
This week, average prices decreased across four of the five regions. The regional price average decreases ranged from 2.6 cents in both the Gulf Coast and Rocky Mountain regions to 6.9 cents in the West Coast region. Only the Midwest region reported an increase, 7.3 cents.
The most expensive place to buy diesel is California, at $7.47 per gallon, and the least costly is Oklahoma, at $5 per gallon.
In the final week of April, oil prices surged above $100 per barrel.
Average diesel prices reported by region, as of May 11, were:
The average price of a gallon of diesel increased this week, with the national average price jumping by nearly 29 cents.
Work Truck | EIA
Average diesel prices reported by region, as of May 4, were:
The average price of a gallon of diesel decreased again this week, with the national average price dropping by 5.2 cents.
Work Truck | EIA
Average diesel prices reported by region, as of April 27, were:
The average price of a gallon of diesel decreased again this week, more significantly than a week ago.
Work Truck | EIA
Average diesel prices reported by region, as of April 20, were:
The national average price of a gallon of diesel dropped by more than 5 cents this week, and all but one region reported price decreases.
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Average diesel prices increased again this week, both nationally and across every region. The national average price increased by more than 9 cents.
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