Key takeaways:
- Diesel and gas prices nationwide have declined, with diesel averaging $3.487 and gasoline at $3.160 this week.
- The Rocky Mountain and Gulf Coast regions had the largest decreases in diesel prices, while the Gulf Coast saw the biggest drop in gas prices, with regional averages varying widely.
- Current gas prices are the lowest since 2021, driven by increased crude oil supply, resulting in lower prices compared to last year.
After last week’s spike, diesel and gas prices dropped nationwide this week. The national average on-highway diesel price decreased 5 cents to $3.487 according to data released by the U.S. Energy Information Administration on May 28. Gas prices dropped 1 cent to $3.160.
What are the current diesel prices across the U.S?
Here are this week’s diesel price highlights from each region of the U.S.:
- Rocky Mountain: The biggest drop in diesel prices was in the Rocky Mountain area with 7 cents to $3.445.
- Gulf Coast: Diesel prices dropped 7 cents to $3.136 in the Gulf Coast states.
- Midwest: Diesel prices dropped 5 cents to $3.428 in the Midwest.
- West Coast: Along the West Coast, diesel prices dropped 5 cents to $4.248. Without including California, prices dropped 7 cents to $3.763.
- East Coast: On the East Coast, diesel prices dropped 3 cents to $3.555.
According to AAA Motor Club, the current national diesel price average is $3.537. This is 5 cents higher than EIA’s current estimate and 33 cents lower than this time last year.
See also: Diesel and gas prices rise ahead of summer travel season
What are the current gasoline prices across the U.S.?
The current national average on-highway gasoline price is $3.160, according to EIA, 1 cent lower than last week’s average.
Here are this week’s gasoline price highlights from each region of the U.S.:
- Gulf Coast: The biggest drop in gas prices was along the Gulf Coast with 6 cents to $2.726.
- West Coast: On the West Coast, gas prices dropped 3 cents to $4.258. Without including California, prices rose 1 cent to $3.857.
- Rocky Mountain: In the Rockies, gas prices dropped 1 cent to $3.118.
- Midwest: In the Midwest, gas prices dropped 1 cent to $3.018.
- East Coast: On the East Coast, gas prices rose 1 cent to $2.995.
According to AAA, the current national gasoline price average is $3.163. This is 0.3 cents higher than EIA’s current estimate and 42 cents lower than this time last year.
In a recent press release, AAA said, “Gas prices haven’t been this low over Memorial Day since 2021 when the national average was $3.04. Supply and demand are playing a role in this year’s lower pump prices as crude oil supply is currently surpassing demand.”
About the Author

Jenna Hume
Digital Editor
Digital Editor Jenna Hume joined FleetOwner in November of 2o23 and previously worked as a writer in the gaming industry. She has a bachelor of fine arts degree in creative writing from Truman State University and a master of fine arts degree in writing from Lindenwood University. She is currently based in Missouri.