Distillate inventories are running 14% below their five-year average at roughly four weeks of supply, a scarcity that feeds directly into freight costs rather than into gasoline prices.
Crude oil has taken the headlines. Diesel is the more consequential market right now, and it is behaving differently.
U.S. distillate inventories stood at 106.274 million barrels for the week ended September 4, roughly 14% below the five-year average and equal to about four weeks of supply. Retail diesel has been reported at record levels above $6 a gallon, with one tracked retail figure at $6.285, up roughly 81% since early January and about 8% above the previous record set in June 2022. Heating oil futures, the closest liquid proxy, traded near $5.02 a gallon.
The gap between the retail figure and the futures figure reflects the difference between what refiners sell wholesale and what appears on a pump, plus taxes and distribution. It is a distinction worth keeping straight, because the two series are frequently quoted interchangeably and imply very different degrees of tightness.
Supply is being squeezed from two directions
The distillate shortage has two sources, and neither is about crude availability. The Saudi pipeline outage has removed export capacity from a region that supplies refined product as well as crude. Separately, Ukrainian strikes on Russian refining capacity have reduced Russian product exports. Combined Gulf and Russian net distillate exports ran roughly 1.6 million barrels a day lower in August than in February.
That is a refining and logistics problem rather than a wellhead problem, which is why it shows up in cracks rather than in flat price. The 3-2-1 crack spread has been quoted near record levels around $64, and refiner equities are up more than 80% year to date.
Where it lands in the real economy
Diesel is the input cost of physically moving goods. Trucking, rail freight, agriculture and construction all price it directly, and the pass-through into food, manufactured goods and building materials typically runs four to eight weeks behind the pump.
That timing matters for anyone reading today's Fed decision. A diesel-driven cost impulse building now lands in goods prices in late October and November, after the committee has already acted on the inflation data in front of it. The inflation the Fed is responding to today is not the inflation this squeeze is going to produce.
What would relieve it
Two things. A confirmed restart of the Saudi pipeline, which remains disputed between officials describing days and analysts describing months. Or a distillate inventory build in the weekly government data, which has not appeared yet. Until one of them arrives, the tightest part of the energy complex stays tight.