According to the most recent report by the U.S. Energy Information Administration (EIA), the national average cost of diesel fuel jumped significantly this week, and all five regions also reported higher average prices. 

The national average price of diesel fuel in the U.S. per gallon increased by 20 cents as of June 23, 2025. The national average price of $3.77 is .6 cents higher than at the same time last year. 

This week, regional average prices increased in all five regions. The increases ranged from just over 14 cents in the Rocky Mountain region to 24 cents in the Midwest region. The averages for three regions are still lower than at the same time last year, however, the Midwest and West Coast are higher.

The most expensive place to buy diesel is Hawaii, at $5.24 per gallon, and the least costly is Texas, at $3.26 per gallon.

Regional Diesel Prices: 4th Week of June

In the fourth week of June, average diesel prices reported by region, as of June 23, were: 

• East Coast: $3.79

• Midwest: $3.78

• Gulf Coast: $3.43

• Rocky Mountain: $3.69

• West Coast: $4.46

Regional Diesel Prices: 3rd Week of June

In the third week of June, average diesel prices reported by region, as of June 16, were: 

• East Coast: $3.62

• Midwest: $3.53

• Gulf Coast: $3.21

• Rocky Mountain: $3.55

• West Coast: $4.31

Regional Diesel Prices: 2nd Week of June

In the second week of June, average diesel prices reported by region, as of June 9, were: 

• East Coast: $3.52

• Midwest: $3.43

• Gulf Coast: $3.11

• Rocky Mountain: $3.48

• West Coast: $4.22

Regional Diesel Prices: 1^st Week of June

In the first week of June, average diesel prices reported by region, as of June 2, were: 

• East Coast: $3.52

• Midwest: $3.39

• Gulf Coast: $3.10

• Rocky Mountain: $3.45

• West Coast: $4.22

Regional Diesel Prices: 4th Week of May

In the fourth week of May, average diesel prices reported by region, as of May 26, were:

• East Coast: $3.55

• Midwest: $3.43

• Gulf Coast: $3.13

• Rocky Mountain: $3.44

• West Coast: $4.25

Diesel Price Factors & Outlook

According to AAA, at the end of May, the crude oil prices per barrel remained in the low $60s. Reports indicated prices should remain lower when compared to last summer; however, weather can have an impact. Hurricane season has begun, and the National Oceanic and Atmospheric Administration (NOAA) predicts a 60% chance of more named storms than in a normal hurricane season.