The diesel arrangement will not do what it was announced to do, and the reason has nothing to do with politics. It has to do with the difference between crude oil and fuel, which is a distinction that disappears from public discussion at exactly the moment it becomes decisive. The world is not short of oil in the ground or in tanks. It is short of the capacity to turn that oil into distillate, and a cargo of product from a sanctioned supplier does not add a single unit of that capacity.
Two forces have done the damage. The war involving Iran has disrupted the flow of crude and the shipping that carries it through the most concentrated chokepoint in global energy, and it has done so in a way that raises insurance, freight and risk premia across the entire basin. Separately and more consequentially for diesel specifically, Ukrainian strikes on Russian refining infrastructure have taken processing units out of service. Those are two different kinds of injury. The first raises the cost of the raw material. The second destroys the ability to convert it.
A refinery is not a warehouse. It is a precisely configured chemical plant, built to run a particular grade of crude into a particular mix of products, and the equipment that makes diesel out of heavier fractions is among the most specialised and expensive machinery in industry. A damaged distillation column or a destroyed hydrocracker takes months to replace and the replacement parts are made by a small number of firms with order books already full. During those months, the crude that unit would have processed sits in a tank being perfectly adequate crude and no use at all to anyone who needs to fill a truck.
This is the grinder problem, and every cafe owner has lived it. The shop has beans. The shop has excellent beans, more than it needs, bought well and stored properly. What the shop does not have is a working grinder, because the burrs went last Tuesday and the replacement set is three weeks out. In that condition a delivery of more beans is not a solution and the owner knows it the moment the van arrives. The bottleneck has moved from the input to the machine, and once a bottleneck moves, every intervention aimed at the old one is theatre. You can stand in a store room full of coffee and still be unable to serve a cup.
Three hundred thousand tonnes of finished diesel does help, in the narrow sense that finished product is what the market lacks. But the volume sits against a global distillate market that consumes vastly more than that in a matter of days, and against a structural deficit in refining capacity that has been building since well before either war. Several large refineries in Europe and the United States have closed in recent years for reasons of economics and environmental regulation, and the capacity added elsewhere was configured for different output. That rebalancing is a decade-long project. It is not a winter project and it is certainly not a phone-call project.
Which means the arrangement has to be judged on what it can actually deliver, rather than on what the announcement implied. It can smooth a spike. It can give traders a reason to stop bidding up the next cargo, and a market that stops panicking is a market that stops overshooting, which is worth something real to anyone buying fuel. It can buy time while damaged units are repaired and while new capacity in Asia and the Gulf comes fully onstream. These are genuine benefits and they will show up in the price curve before they show up at the pump.
What it cannot do is rebuild a hydrocracker. The beans are on the shelf and the burrs are still in the post. Diesel will get cheaper when the world can make more of it, and on that question the only people who matter are wearing hard hats.
Source: The New York Times, “Why Trump’s Russia diesel deal is unlikely to lower fuel prices”
