The DOE number
Above normalThis week's DOE diesel price
$4.578/gal for the week of Jul 6, 2026. Down 9.0 cents from last week. Released Mondays by EIA; the index fuel surcharge schedules peg to.
Data through Jul 6, 2026 · page updated Jul 9, 2026
Cite
- US average
Now $4.578/gal, 22% above the 5-yr median. This week's move trims about $6.92 from the fuel cost of a 500-mile haul at the stated 6.5 mpg reference.
| Period | Current | Prior | Change |
|---|---|---|---|
| Week over week | $4.578/gal | $4.668/gal | -1.9% |
| Month over month | $4.578/gal | $5.210/gal | -12.1% |
| Year over year | $4.578/gal | $3.739/gal | +22.4% |
| vs 5-yr median | $4.578/gal | $3.767/gal | +21.5% |
| Fuel cost per mile (at the stated 6.5 mpg reference) | 70.4 cents/mi | 71.8 cents/mi | -1.38 cents/mi |
| Fuel for a 500-mile haul (at 6.5 mpg) | $352.15 | $359.08 | -$6.92 |
About This week's DOE diesel price
Every Monday the US Energy Information Administration publishes the average retail price of on-highway diesel, from its weekly survey of fuel stations. The trade calls it the DOE number. It matters because it is the contractual index of US trucking: most fuel surcharge schedules between carriers, brokers and shippers peg to this exact figure, so when it moves, surcharge rates across the industry move with it on a fixed formula.
The per-mile figures on this page use a stated reference efficiency of 6.5 miles per gallon, a plain mid-fleet figure for a loaded Class 8 truck. It is a reference point for comparing weeks, not an estimate of any particular truck. At that reference, a 500-mile haul burns about 77 gallons, which is how the haul-cost line converts a cents-per-gallon move into dollars.
On-highway means taxed pump diesel, the fuel trucks actually buy. It is not dyed off-road diesel, and it is not a wholesale or rack price. Regional breakouts of the same survey are on the region pages.