Why has WTI Crude Oil Price climbed 20.7% over the past month?

WTI is now 90.82, up 20.7% over the past 30 days, off a 30-day low of 68.25. A move that size in a month is worth stopping on, because it decides what a fuel operator pays for product before anything else in the business happens. So the question is plain: what pushed crude up that far, and does it change what an operator should do this week.

The first thing to check is whether crude moved alone or moved with everything. Brent is now 95.22, up 19.8% over the same 30 days. The two big crude benchmarks rising almost in step points away from a local U.S. story and toward a global one. When only WTI runs, you look at U.S. pipelines and inventories. When WTI and Brent run together, you look at the world.

The wire says what the world is doing. Crude extended its climb on the war in the Middle East, with Brent reported around $95.55 and WTI around $91.53 as Iran and the United States traded missile strikes and Israel's defense minister threatened to cripple Iran's infrastructure, including energy facilities. Separately, Ukraine confirmed it shut a Russian oil refinery and a strategic port after strikes. Two supply scares on two fronts, both hitting the crude side. That is a fear premium, money paid now against the chance that barrels stop moving later.

The obvious read is that a supply scare should show up as barrels getting scarce here. It does not. U.S. Petroleum Inventories are now 424.46, up 4.3% over 30 days. Inventory built while price climbed. If the U.S. were physically short of crude, stocks would be falling as the price rose, and they are rising. So the climb is not a domestic shortage. It is a price paid for risk that has not yet become a real loss of supply.

The pipeline reporting pushes the same way. RBN describes nearly 200 Mb/d of new capacity added from the Permian to Corpus Christi, with Gray Oak finishing a 120 Mb/d expansion in May and Plains completing a 75 Mb/d expansion of Cactus III into service in August. More takeaway out of the Permian means more crude reaching the Gulf, not less. That is a factor working against a higher domestic price, which makes the 20.7% climb look even more like an outside force overriding the home-field supply picture.

One more check on whether this is oil or the whole energy complex. Henry Hub Natural Gas is now 2.928, up 8.9% over 30 days. Gas moved, but a fraction of what crude did. If demand for energy in general were surging, gas would be running harder alongside oil. It is not. The move is concentrated in oil, which fits an oil-specific supply scare and not a broad demand story.

That settles the crude question well enough. Now the part an operator actually feels: what does crude at this level do to product. ULSD Diesel Futures are now 4.544, up 19.7% over 30 days. Wholesale diesel moved almost exactly with crude, which is what you would expect. The refiner's raw material got more expensive and the wholesale product followed it up nearly step for step.

The pump has not followed. U.S. Diesel Price is now 5.599, up 4.7% over 30 days. Retail moved a small fraction of what the wholesale futures did. Retail always lags wholesale, and the lag is sitting right there in the numbers. The diesel retail-wholesale spread is 1.104 now, down 0.367 over 30 days. That spread narrowing is the margin between what a marketer pays and what the street charges getting thinner. Wholesale ran up, the street has not caught up, and the difference came out of the seller's cut for now. If the wholesale move holds, retail diesel could keep climbing to rebuild that margin, and the 30-day high of 5.652 is close to where it already is.

For the refiner, the 3:2:1 crack spread is 54.98 now, down 2.43 over 30 days. Crude ran a little faster than product on a refining-margin basis, so the crack gave back a bit. A crack near 55 is still a strong margin, and a refiner running this month is running a good month by it. The small drop says the crude spike squeezed the theoretical refining margin slightly, not that it broke it.

So the honest answer. The 20.7% climb in WTI is mostly a war-risk premium on crude, driven by the Iran conflict and the strikes on Russian energy sites, and not by any shortage of barrels in the United States. U.S. inventories rose over the same month and new Permian takeaway capacity came online, both of which argue against domestic tightness. What I am sure of stops there.

What I am not sure of is what the premium does next, and I will not pretend to be. Fear premiums are paid on a risk that has not happened yet, and they can come off as fast as they went on if the shooting eases. What an operator can act on today is narrower and firmer: wholesale diesel has already moved with crude, the street has not caught up, and marketer margins are thin right now, so pump diesel could rise from here if wholesale holds. That much the numbers support. The direction of crude from 90.82, I cannot call, and neither should anyone selling you a hedge on it.

And that was just the data. See you tomorrow.