June Diesel Trends Update
The national average price of a gallon of diesel has dropped again, this week by more than 16 cents. All five regions reported lower average prices, ranging from almost 13 cents to more than 28 cents cheaper than a week ago.
The average price of a gallon of diesel dropped by more than 16 cents this week, bringing the national average to under $4.70 per gallon.
Work Truck | EIA
The national average price of a gallon of on-highway diesel remains below $5, and prices continue to trend lower. This week, the national average price dropped by more than 16 cents.
The national average price of a gallon of on-highway diesel was $4.67 as reported on June 29 by the U.S. Energy Information Administration (EIA).
The weekly report also provides a year-over-year pricing comparison, showing the national average is now 94.1 cents higher than in 2025 and 85.5 cents higher than the same time in 2024.
This week, average prices decreased across all five regions.
The regional price average decreases ranged from 12.8 cents in the East Coast region to more than 28 cents in the West Coast region. All regions’ averages are now below $5, except for the West Coast, which was reported at $5.52 on Monday.
The most expensive place to buy diesel is Hawaii, at $6.99 per gallon, and the least costly is Oklahoma, at $4.11 per gallon.
Regional Diesel Prices: End of June
Average diesel prices reported by region, as of June 29, were:
- East Coast: $4.75
- Midwest: $4.58
- Gulf Coast: $4.28
- Rocky Mountain: $4.60
- West Coast: $5.52
Regional Diesel Prices: 4th Week of June
The average price of a gallon of diesel dropped by more than 22 cents this week, bringing the national average back below $5 per gallon.
Work Truck | EIA
Average diesel prices reported by region, as of June 22, were:
- East Coast: $4.88
- Midwest: $4.75
- Gulf Coast: $4.41
- Rocky Mountain: $4.79
- West Coast: $5.81
Regional Diesel Prices: 3rd Week of June
The national average price of a gallon of diesel dropped by 15 cents this week, following a 14-cent decrease last week.
Work Truck | EIA
Average diesel prices reported by region, as of June 15, were:
- East Coast: $5.05
- Midwest: $5.01
- Gulf Coast: $4.64
- Rocky Mountain: $5.02
- West Coast: $6.07
Regional Diesel Prices: 2nd Week of June
The average price of a gallon of diesel dropped by 14 cents this week, and all five regions saw improvements.
Work Truck | EIA
Average diesel prices reported by region, as of June 8, were:
- East Coast: $5.15
- Midwest: $5.18
- Gulf Coast: $4.78
- Rocky Mountain: $5.20
- West Coast: $6.29
Regional Diesel Prices: 1st Week of June
The average price of a gallon of diesel dropped by more than 17 cents this week, and all five regions saw double-digit improvements in cents.
Work Truck | EIA
Average diesel prices reported by region, as of June 1, were:
- East Coast: $5.23
- Midwest: $5.39
- Gulf Coast: $4.90
- Rocky Mountain: $5.33
- West Coast: $6.40
Regional Diesel Prices: 4th Week of May
The average price of a gallon of diesel decreased by more than 4 cents this week, and four of the five regions saw similar price improvements.
Work Truck | EIA
Average diesel prices reported by region, as of May 26, were:
- East Coast: $5.39
- Midwest: $5.62
- Gulf Coast: $5.04
- Rocky Mountain: $5.49
- West Coast: $6.50
Will Fuel Prices Keep Going Down?
At the end of May, AAA reported crude oil prices had been dropping as a result of peace talks with Iran. However, the same report noted that the situation could be fragile and oil prices could spike again, thereby driving up the price of diesel and gasoline.
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