Diesel Prices Remain Steady as Gasoline Ticks Down

National Fuel Trends Show Diesel Prices Holding Steady

Diesel prices remained mostly flat across the country, according to the latest report from the U.S. Energy Information Administration (EIA) . For the week ending July 8, 2025, the average diesel price stands at $3.74 per gallon, up just one cent from the week before.  Although this small increase may not seem like much, it remains about 13 cents lower than they were at the same time last year. For fleets and truck drivers, this offers some welcome stability in one of their biggest operating costs. Meanwhile, gasoline prices saw a slight drop.

Diesel Price by U.S. Region

While the national average remains steady, diesel prices vary across different regions. The Gulf Coast currently offers the lowest average, while the West Coast, especially California, continues to lead with the highest costs.

• East Coast: $3.76
• Midwest: $3.65
• Gulf Coast: $3.56
• Rocky Mountain: $3.77
• West Coast: $4.31
• California: $4.52

For carriers running long-haul routes through multiple regions, these local price differences can make a noticeable impact on budgeting and planning.

Gasoline Prices Drop Slightly

While diesel prices held steady, gasoline prices dropped by 4 cents this week. The national average for regular gasoline is now $3.13 per gallon, which is 36 cents lower than it was one year ago.

Gasoline prices by region:

• East Coast: $3.02
• Midwest: $2.98
• Gulf Coast: $2.69
• Rocky Mountain: $3.18
• West Coast: $4.08

Although gasoline isn’t the main fuel source for heavy-duty trucks, this trend could still benefit light-duty fleets or mixed-use operations.

What Affects Diesel Prices

According to the EIA, diesel prices are influenced by several main factors:

• Crude oil prices
• Refining and processing costs
• Distribution, marketing, and taxes

Crude oil accounts for nearly half the cost of a gallon of diesel. Any change in global oil markets can directly affect U.S. fuel prices. Events such as hurricanes, geopolitical tensions, or refinery maintenance can also cause short-term spikes.

Why Stable Diesel Prices Matter to Trucking

For truck drivers and freight companies, stable diesel prices offer more predictable fuel spending. Since fuel is one of the largest expenses in the industry, even small fluctuations can affect profits.

When prices hold steady or decline slightly, carriers can better plan routes, maintain schedules, and manage costs without scrambling to adjust fuel surcharges or delivery rates.

Next Diesel Prices Update

The next weekly fuel report from the EIA is scheduled for July 15, 2025. While fuel markets always carry some uncertainty, current trends suggest diesel prices may continue to hover near their current levels, at least in the short term.

Truck drivers, fleet operators, and logistics managers can continue monitoring these updates to stay informed on fuel trends that may impact day-to-day operations.