Why has the 3:2:1 crack spread widened to 58.72 when crude is climbing?

The 3:2:1 crack spread is 58.72, up 11.22 over the past 30 days. Refining margins normally get thinner when crude gets more expensive, and crude has been getting more expensive: OilPrice reports Brent and WTI both advancing on renewed U.S.-Iran hostilities, with prices 12% higher than they were on Friday. Two things moving the same direction that usually move opposite ways is worth an hour.

The obvious read is that products got more expensive faster than crude did. The ULSD futures price supports that. It is up 17.1% over 30 days. A move that size on the distillate contract in a month is the market repricing supply, not demand drifting. Distillate is two of the three products in the 3:2:1, so a 17.1% move on that leg alone does a lot of the work in the spread.

The next thing to check is whether that product strength is real or an artifact of one contract. It is not just the contract. Ukrainian drones struck refineries in Bashkortostan and Krasnodar this week, including Gazprom Neftekhim Salavat, and one wire item describes a strike on Russia's last untouched major gasoline refinery. Zelenskyy has publicly credited the strikes. Whatever you think of the war, the market effect is mechanical: barrels of crude are still being produced, and the machinery that turns them into diesel and gasoline is being taken offline. Crude supply and refining capacity are not the same asset, and when you damage the second one without damaging the first, the crack widens.

Asian refiners have gone back to buying U.S. spot crude cargoes after flows through the Strait of Hormuz stalled again. Chinese refiners have skipped term Saudi cargoes for August, and China's June crude imports fell 41.3% year over year to 29.27 million tons, or 7.12 million barrels per day, a decade low.

So the easy answer holds up on the product side. Where it broke down for me was the retail data.

The U.S. diesel price is 4.578, down 12.1% over 30 days. U.S. gasoline is 3.911, down 8.6%. Wholesale distillate up 17.1% and retail diesel down 12.1% over the same window is not a story about street prices rising with the market. Some of that is the ordinary lag between a futures move and the pump, and the retail series is a slow, survey-based number that will not turn on a week of headlines. But the gap is too large to be timing alone. The pump has not repriced yet.

The diesel retail-wholesale spread is 1.28, down 0.33 over 30 days. Rack prices went up, street prices went down, and the difference between them narrowed by a third of a dollar a gallon. The widening in the crack spread is not reaching the retailer. If you own truck stops or a diesel-heavy c-store network, you already knew that from your own P&L.

Which puts the answer in a specific place. The 58.72 is landing at the refinery gate. A refiner buying crude and selling gasoline and distillate into this market is capturing a spread 11.22 wider than a month ago, which is what the 3:2:1 is built to measure. The refiners still running are earning it in a market where a meaningful amount of competing capacity is offline or throttled, and that is what refining margin is supposed to compensate. The jobber and the retailer buying at the rack are on the other side of the same move, paying more for the gallon and not yet passing it through. That is not permanent. Street prices follow rack prices with a lag, and the retail spread could rebuild over the next few weeks if wholesale steadies. But right now the margin is upstream of the pump.

What I am confident in: the crack widened because product cracked harder than crude, and the product move is tied to refining capacity coming out of the system rather than to demand. The evidence is consistent across three independent series and the wire.

What I am not confident in: how much of the 17.1% distillate move is durable and how much is a war-risk premium that unwinds. Iran moved an estimated 12 million barrels of crude past the renewed blockade in one week, per OilPrice, which suggests the crude side of the disruption is leakier than the headlines imply. If crude keeps flowing and the damaged refineries come back, the crack narrows. I also do not have a refinery utilization number in front of me, and until I do, the capacity story is an inference from the reporting rather than something I can measure. I would not build a hedge on it.

For now: if you refine, this is a good month and you earned it. If you buy at the rack, your margin is down about a third of a dollar on diesel and you may want to look hard at whether your street price is still where the market says it should be.

And that was just the data. See you tomorrow.