US retail diesel hits $6.29 a gallon, a record in nominal terms
Victoria Shinder2 min readThe US Energy Information Administration put retail diesel at $6.29 a gallon in its weekly update for 14 September — the highest figure in the series since it began in 1994, and the highest since 2022 once inflation is taken out.
The useful part of the agency's note is not the number but the decomposition. A pump price is four things stacked: the crude oil price, the refining margin, distribution and retail margins, and taxes. EIA tracks the refining component through the crack spread — wholesale diesel minus spot crude, per gallon — and it is that component, on top of already elevated crude, that is doing the work this time.
Why the refining margin is wide: global distillate supply is tight because refining activity has fallen in Russia, China and the Middle East. That raises international prices, which both makes imported diesel dearer in the US and pulls American product abroad.
What is notable is that this is not a domestic shortage. US distillate production averaged 5.1 million barrels a day from January to August, the most since 2019, and refineries ran at 97% utilisation in the week ending 11 September. The system is producing near its ceiling and the price is still at a record.
What it means
A record at full utilisation is a capacity story, not a demand spike. When output is near maximum and prices keep climbing, the constraint is refining capacity and the export pull on it — the kind of condition that does not resolve with a warm week or a demand dip.
Diesel is an industrial index, not a motorist's complaint. It moves freight, farm equipment, construction plant and standby generation. A record diesel price shows up in the cost of everything that gets delivered, with a lag of weeks — including, for our readers, the fuel line of any site that still runs diesel gensets for backup.
And the decomposition is the transferable habit. When a price you depend on moves, ask which of the four layers moved. "Crude is expensive" and "refining is scarce" look identical at the pump and call for completely different responses — hedging in one case, contracts and stock policy in the other.
EIA publishes the underlying series weekly, so this one can be tracked rather than believed.