Key numbers
US diesel statistics (July 2026)
The headline numbers, each written as one sentence you can quote, with the date its data runs through and a citation. Free to republish with attribution — see the methodology. The charts behind these numbers are one click away.
The DOE number #
US on-highway diesel averaged $4.578/gal in EIA's latest Monday release — the index most fuel surcharge schedules peg to.
Weekly move #
The DOE diesel number moved -9.0 cents on the week (down), week of Jul 6, 2026.
DOE vs 5-yr #
The DOE diesel number is 22% above its 5-yr median for the week.
Fuel cost per mile #
At the stated 6.5 mpg reference, diesel runs 70.4 cents/mi — fuel only, not all-in cost.
West vs Gulf spread #
The West Coast (PADD 5) pays +120.0 cents/gal over the Gulf Coast (PADD 3), the widest structural gap on the diesel map.
Retail over spot #
The US pump price sits $1.325/gal over Gulf Coast ULSD spot (taxes + distribution, a retail-layer proxy).
Gulf Coast spot #
Gulf Coast ULSD spot is $3.253/gal.
Priciest region #
California has the highest regional pump price, $6.073/gal.
Cheapest region #
PADD 3 (Gulf Coast) has the lowest regional pump price, $4.225/gal.