Diesel prices decline, while gasoline costs rise: Key insights for trucking professionals

The national average on-highway diesel price fell to $3.713, providing trucking companies with a chance to optimize fuel budgets.
Aug. 20, 2025
3 min read

Key takeaways

  • Diesel prices dropped to $3.713, offering potential savings for trucking companies amid fluctuating fuel costs. 
  • Gasoline prices increased slightly, suggesting that trucking professionals should monitor regional fuel trends closely.
  • Steady crude oil prices indicate no drastic changes ahead, allowing trucking companies to plan fuel budgets more effectively.

Diesel prices continued to drop this week as gasoline prices rose. The national average on-highway diesel price dropped 4 cents to $3.713, according to data released by the U.S. Energy Information Administration (EIA) on August 18. Gas prices rose 1 cent to $3.125. 

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.:

  • Gulf Coast: The biggest drop in diesel prices across the U.S. this week was on the Gulf Coast, falling 6 cents to $3.340.
  • Midwest: In the Midwest, diesel prices dropped 5 cents to $3.702.
  • West Coast: Along the West Coast, diesel prices dropped 4 cents to $4.455. Without including California, diesel prices dropped 5 cents to $4.094.
  • East Coast: In the East Coast, diesel prices dropped 2 cents to $3.733.
  • Rocky Mountain: In the Rockies, diesel prices dropped 2 cents to $3.757.

According to AAA Motor Club (AAA), the current national diesel price average is $3.697. This is 2 cents lower than EIA’s current estimate and 4 cents lower than this time last year.

See also: Fuel prices fall across most of the U.S. as summer winds down

What are the current gasoline prices across the U.S.?

The current national average on-highway gasoline price is $3.125, according to the EIA, 1 cent higher than last week’s average. 

Here are this week’s gasoline price highlights from each region of the U.S.:

  • Gulf Coast: The largest increase in gas prices across the U.S. this week was in the Gulf Coast, jumping 7 cents to $2.745. 
  • West Coast: In the West Coast, gas prices rose 1 cent to $4.044. Without including California, gas prices rose 2 cents to $3.796.
  • Rocky Mountain: In the Rockies, gas prices rose 1 cent to $3.164.
  • Midwest: In the Midwest, gas prices dropped 0.3 cents to $2.994.
  • East Coast: Along the East Coast, gas prices dropped 1 cent to $2.997.

According to AAA, the current national gasoline price average is $3.130. This is 1 cent higher than EIA’s current estimate and 28 cents lower than this time last year. 

In a recent press release, AAA said, “The summer of lower pump prices continues, as the busy driving season nears its end. As we enter peak hurricane season, storms affecting gas production and distribution are something to keep an eye on. But right now, with crude oil prices remaining steady, there’s no indication gas prices will make any drastic moves.”

About the Author

Jenna Hume

Digital Editor

Digital Editor Jenna Hume joined FleetOwner in November of 2023 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. 

Sign up for our free eNewsletters

Voice Your Opinion!

To join the conversation, and become an exclusive member of FleetOwner, create an account today!