Fuel reset the delivery cost base in the week of 09/07/26
The national average for on highway diesel was 5.967 dollars a gallon at the price date of 09/07/26, including all taxes. That is 2.201 dollars above the same series a year earlier. California carried the highest regional price that week at 7.764 dollars.
- $5.967 US Average On Highway Diesel Per Gallon, Price Date 09/07/26, All Taxes Included
- $2.201 Published Change From A Year Earlier On The Same National Series
- $7.764 Highest Regional On Highway Diesel Price That Week, California
Fuel is the line in a last mile cost model that nobody controls and everybody pays, and a national average at this level resets the arithmetic under cost per stop, cost per mile and the surcharge tables sitting on top of parcel and dedicated contracts. It does so ahead of the heaviest shipping months rather than after them, so a team still budgeting against a spring fuel assumption is carrying a stale input into its busiest quarter. The useful part for a supplier is that this is a dated public figure a buyer can look up for one specific week, which turns a payback claim from a projection into a shared calculation. The spread underneath the average matters just as much: a West Coast heavy network and an East Coast heavy one are solving different economics in the very same week, so sorting meeting requests by where a buyer's density actually sits beats working down a delegate list alphabetically.