U.S. Diesel Prices Set to Break 2022 Annual Record

U.S. on-highway diesel prices reached $5.967 per gallon on September 7. This figure surpasses the previous nominal weekly high of $5.810 set in June 2022. The price increase is 36.8 cents from the prior week. This level puts the 2026 annual average within striking distance of a record. Gasoline prices are also elevated but remain well below their 2022 peak.

Regular gasoline rose by 8.6 cents to $4.157 per gallon. This is significantly lower than the $5.006 weekly peak recorded in 2022. The divergence suggests 2026 will likely see a record annual average for diesel. Gasoline is unlikely to match its 2022 annual record. This split impacts commercial sectors more than individual drivers.

Annual Average Calculations

The U.S. Energy Information Administration sets the 2022 diesel annual record at $4.989. The current 2026 year-to-date average stands at $4.895 per gallon. This calculation uses 36 weekly price observations through September 7. Sixteen weekly observations remain for the rest of the year. Diesel must average $5.20 over those final weeks to break the record.

Gasoline requires a higher average to set a new record. It needs to average $4.35 over the remaining weeks. The current 2026 average for gasoline is $3.772. If prices remain flat at September levels, diesel will finish the year at $5.22. This would comfortably exceed the 2022 benchmark. Gasoline would finish at $3.89, remaining below its record.

Diesel Market Tightness

The 2022 price spike followed a market that was already tight. Pandemic disruptions had reduced refining capacity and lowered inventories. Demand recovered as economies reopened. Russia’s invasion of Ukraine then removed a major source of global diesel supply. This loss tightened a market with little spare room.

U.S. distillate inventories fell to 25 days of supply by October 2022. The average for 2017-2021 was 34 days. High crude prices were only one factor in the cost increase. A shortage of refining capacity and physical distillate barrels drove the spike. The current 2026 environment reflects similar structural constraints.

Economic Impact of High Diesel

Diesel prices affect the broader economy more than gasoline. Trucking, agriculture, construction, and rail rely heavily on diesel. High fuel costs increase prices for goods and services. These effects extend far beyond the filling station. Commercial activity bears the brunt of sustained price increases.

Gasoline dominates public discussion because drivers see it weekly. Diesel is less visible to consumers but critical to logistics. The 2026 trend shows diesel outpacing gasoline in price strength. This divergence highlights the specific pressures on commercial fuel markets. The data from GN auto markets/energy confirms this structural shift.