Crude oil is not what is breaking the fuel market anymore. The barrels themselves are still moving, more or less. What the world cannot do right now is turn enough of them into diesel, jet fuel and gasoline.
The clearest sign sits in the refining margin. The 3-2-1 crack spread, a rough gauge of what a refiner earns by turning three barrels of crude into two of gasoline and one of distillate, is trading near $61.54 a barrel. In a normal summer it runs closer to $20 to $25. With WTI near $90 and Brent close to $98, refiners still up and running are capturing something like triple their usual margin, and drivers are covering the difference.
Two wars, the same casualty
The squeeze has two fronts, and both are aimed at the same kind of target.
In the Gulf, Iran has struck around 30 refineries since the war began, according to industry reporting. Repairs cannot safely start while missiles are still flying, so the damage keeps compounding. Vitol, the largest independent oil trader, estimates the fighting has pulled more than 5 million barrels a day of refining capacity offline around the world.
The second front is in Russia. Over the past hundred days, Ukrainian drones have flown roughly 50 raids and reached about 24 of Russia's 34 major refineries, cutting close to a quarter of the country's refining capacity. In early July, Russian plants were running at about 3.91 million barrels a day, a low unseen since 2005. On July 8, Moscow banned diesel exports to keep fuel at home, and rationing has since spread to more than 20 regions. Russia was one of the planet's biggest diesel suppliers, so its retreat drains the export market just as the Gulf goes dark.
Less fuel, stickier pump prices
Put the two fronts together and the total is stark. Between them, the fighting in the Gulf and in Russia has idled close to a tenth of the world's refining capacity. The International Energy Agency has trimmed its 2026 forecast for how much crude the world's refineries will run by 800,000 barrels a day, blaming the wartime outages.
That is why American drivers feel a crisis even with crude off its highs. The national average for diesel has pushed past $5 a gallon and gasoline is back above $4. To plug the global hole, refiners have tilted hard toward diesel and jet fuel, which leaves gasoline stocks thin and pump prices slow to fall. Crude has climbed with each new round of US strikes on Iran, and the refined fuels stacked on top of it have climbed further.
What to watch
The refining problem is the harder one to fix. A ceasefire could reopen the Strait of Hormuz within days, but a wrecked processing unit takes months to rebuild, and no one rebuilds under fire. Until the plants come back, fat margins are likely to stay fat, and the market will keep reading two very different war maps for the same answer: which refineries are still standing.