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SEARCHThe national average price of a gallon of diesel increased by nearly 29 cents this week, every region reported increases, and one region’s average even increased by more than 60 cents.
The average price of a gallon of diesel increased this week, with the national average price jumping by nearly 29 cents.
Work Truck | EIA
The average price of diesel is remaining above $5 nationwide and in every region of the U.S., but after a price drop a week ago, prices increased again this week.
The national average price of a gallon of on-highway diesel was $5.64 as reported May 4 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 $2.14 higher than in 2025 and $1.74 higher than the same time in 2024.
This week, average prices increased across all regions. The regional price average increases ranged from 7.9 cents in the East Coast region to 61.1 cents in the Midwest region.
The most expensive place to buy diesel is California, at $7.50 per gallon, and the least costly is Oklahoma, at $5.01 per gallon.
In the final week of April, oil prices surged above $100 per barrel.
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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