Diesel Prices Have Surged Amid Supply Concerns
Higher fuel costs and shifting state regulations may impact your household budget and delivery timelines.
Updated on Sept. 30, 2026 in Trucks
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U.S. on-highway diesel prices reached an average of $6.38 per gallon as of Sept. 28, 2026. These elevated costs, driven by shipping complexities in the Strait of Hormuz, are pressuring motor carrier bottom lines and freight rates.
Why it matters
Rising diesel costs affect household logistics by inflating shipping fees and potentially increasing home heating expenses due to low national distillate inventories. Refiners are struggling with capacity, keeping fuel prices high for both consumers and businesses.
Diesel prices hit a national average of $6.38 per gallon, while national spot freight rates for the week of Sept. 13 exceeded nine-year averages. In North Dakota, residents may see potential state tax savings of 19 cents per gallon through Nov. 30.
The players
Kelly Armstrong
The Governor of North Dakota who declared an emergency to address diesel availability.
Greg Abbott
The Governor of Texas who authorized the use of red-dyed diesel fuel on public roads.
The details
Fuel surcharges for freight typically adjust on a weekly schedule tied directly to EIA diesel price reports, meaning rising costs are passed to consumers quickly. To mitigate supply disruptions, North Dakota and Texas have eased restrictions on the use of red-dyed diesel fuel, which is typically reserved for off-road agricultural machinery, on public roads for specific operations. This attempt to improve shipping predictability seeks to bypass current bottlenecks in refining and transit.
Timeline
August 2026: Trailer orders reached 24,144 units.
Sept. 13, 2026: National spot freight rates exceeded nine-year averages.
Sept. 28, 2026: The U.S. average for on-highway diesel hit $6.38 per gallon.
Sept. 29, 2026: North Dakota Gov. Kelly Armstrong declared an emergency.
Nov. 30, 2026: The state tax savings window for North Dakota diesel ends.
The Home Front
Rising energy prices follow a pattern set by previous major energy-related shipping disruptions that limit global distillate availability. This volatility marks a departure from typical seasonal pricing trends by placing sustained pressure on both transportation and home heating costs.
Keep an eye on delivery fees for large household purchases as carriers adjust surcharges to match rising fuel costs. Consider winterizing your home early this season to offset potential increases in heating costs caused by low national distillate inventories.
The takeaway
Energy costs remain sensitive to global shipping corridors, which directly impacts your household's cost of living through freight surcharges. Monitor regional state guidance for potential tax relief or fuel-use exemptions if you are involved in agricultural or heavy-duty household logistics.
What happens next
The state tax savings window in North Dakota remains in effect until Nov. 30, 2026, which may influence local fuel budgeting for agricultural and commercial operators until that date.
Further reading
For more on how market changes affect regional logistics, visit Trucks.
Source note: This article includes information reported by CFO.
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