Is refining capacity the missing link in energy price inflation?
Core argument: The crack spread — the margin between crude oil and refined product prices — has widened by ~$35/barrel since the Strait of Hormuz closure, absorbing price rationing that would otherwise have driven crude prices sharply higher.
The difference between the price of a barrel of crude and the price of the products refined from that barrel — the “crack spread” — has exploded, rising about $35/barrel since the eve of the war. Why has the crack spread widened so much? The main answer is that a lot of the world’s refining capacity is either trapped inside the Strait or offline as a result of Ukraine’s drone campaign. It’s not all about Iran. The shortage of refining capacity has held crude prices down, as buyers won’t pay extremely high prices for crude they can’t refine. Or to put it differently but equivalently, the cutoff of oil shipments through the Strait of Hormuz, in effect, required a large rise in global prices [of petroleum products] to ration demand, but much of that rationing has taken place through a rise in the crack spread rather than a rise in crude oil prices.

