A Compounding Oil Shock

Why This Shock Is Different, Why Intervention Cannot Work, How a Physical Shortage Becomes a Financial Event, and What It Means for Monetary Policy

SERIES CONTENTS

Preface

Part I — Why Shorting Oil Futures Cannot Stop a Physical Shortage

Part II — The Fed Playbook in an Oil Price Shock

Preface

On the morning of February 28th, roughly 80 vessels were transiting the Strait of Hormuz each day, carrying around 3.7 million metric tons of cargo. By the time you read this, that number had largely dropped. The ships didn’t sink. They didn’t reroute. They stopped.

On 1 March, the Middle East conflict erupted. Oil spiked. Margin calls hit Tokyo. Naphtha tanks in Singapore ran dry. And across every major market, traders began repricing the expected path of central-bank rates.

This blog series began with a narrower question. On March 5th, reports emerged that the US Treasury was considering intervening directly in oil futures markets by taking short positions in near-dated contracts to dampen energy prices. It was an unconventional proposal, grounded in a simple question: if the price spike is the problem, why not attack it directly where prices are made?

But working through that question, I’ve arrived at something more useful than the answer itself. It led to a framework for reading the oil market — not just in terms of prices, but also in terms of the nature, severity, and possible trajectory of what is unfolding. That is what this series is about.

Key Points

• Why is this shock different? This is not just another oil-price spike. A disruption in the Strait of Hormuz affects several layers of the global supply system at the same time. Crude oil can be partly rerouted through pipelines, but many other products cannot. LNG, naphtha, fertilizers, and petrochemical feedstocks depend much more directly on Gulf export routes. That means the shock does not stop with oil. It spreads into chemicals, food inputs, manufacturing, and shipping. The result is a more complex supply shock: one that raises energy prices immediately but can also disrupt production more broadly as key inputs fail to move.

• Why Treasury intervention cannot work. In part I, I will propose a decomposition of oil price showing that the current spike is dominated by two wedges that no financial instrument can reach: the inventory scarcity premium driven by a logistics collapse, and the shipping cost wedge driven by war-risk insurance withdrawal. A Treasury operation selling oil futures is a basis-compression policy. Basis compression works only when financial positioning has pushed paper prices above physical fundamentals. Here, the physical constraint is the binding one.

• How a physical shortage becomes a financial event. Physical shocks of this scale do not stay in commodity markets. The transmission runs through three distinct channels: earnings repricing for oil-exposed sectors (fundamental, expected); macro discount rate repricing as growth expectations deteriorate (broader, affects all equities); and the channel that distinguishes a severe shock from a manageable one, a margin call cascade. When equity indices fall sharply and the VIX spikes, margin requirements rise automatically across leveraged portfolios. Investors meet calls not by selling their worst positions, but by selling whatever is most liquid, which is why commodity shocks bleed into unrelated assets, turning a regional energy disruption into simultaneous pressure on technology stocks, credit spreads, and currency positions on the other side of the world. On Monday, March 9th, the Nikkei fell 6%, and the KOSPI (the world’s top-performing stock market in 2025) triggered circuit breakers, with Samsung Electronics, the index’s largest constituent, down 9%. The physical shock migrated into the financial system.

• Why it differs from Russia-Ukraine. The 2022 shock and the current one belong to the same family: both produced extreme front-end backwardation, margin call cascades, and acute financial stress. But the 2022 shock was a trade redirection shock: Russian oil kept flowing, and the market rerouted it over months through India and China. Gulf producers stepped up output. The binding constraint was friction (in terms of cost, time, logistics), not physical impossibility, and the policy toolkit partially addressed it. Strategic Petroleum Reserve (SPR) releases bought time. International Energy Agency (IEA) coordination signaled resolve. Trade rerouting absorbed the physical shortfall over a period of months.

  The Hormuz shock cannot be redirected. Pipeline alternatives (Saudi Arabia’s Petroline, the UAE’s ADCOP) can reroute at most a third of normal crude volumes, and only crude. For LNG, naphtha, and petrochemical feedstocks, there is no pipeline alternative of any kind. The SPR releases crude, not naphtha, and there is no strategic naphtha reserve anywhere in the world. In 2022, the instruments partially worked because they addressed the binding constraint. Here, the binding constraint is geography.

• Why it resembles COVID — and where the analogy breaks. COVID in March 2020 is the closest structural comparison in one important respect: it was also a sudden interruption of economic flow. Lockdowns did not just raise costs; they stopped production and disrupted supply chains across multiple sectors at once. The disruption around the Strait has a similar logic on the supply side. The issue is not only that inputs are more expensive, but that some of them may not move at all. Naphtha is not just costlier; it may not arrive. Ammonia is not just more expensive to produce; production itself can be interrupted. The propagation mechanism is similar too. A disruption that begins in a few sectors and locations can spread quickly through global supply chains. That was true in 2020, and it could be true here as well. The key difference is that COVID was deflationary on impact, because it was dominated by a collapse in demand, though some supply disruptions also played a role. A Hormuz shock is different to the extent that it is a pure supply-side disruption, inflationary at the point of impact, and potentially contractionary for output at the same time. That is what creates the policy problem for the central bank.

• Implications for monetary policy. The central bank faces three tasks at once: keeping inflation expectations anchored, supporting growth if activity weakens, and containing financial stress if the oil shock spills into broader markets. In 2020, all three pointed in the same direction: cut rates, provide liquidity, and support confidence. A Hormuz shock is different. Inflation points toward holding or tightening, while growth and financial stability may point toward easing. Part II develops a reaction function for that situation and explains why separating rate policy from targeted liquidity support is central to the problem.

The two pieces that follow were written as this shock was developing. Part I uses the oil-price decomposition to assess the Treasury intervention proposal and shows why the transmission mechanism is unlikely to hold. Part II turns to monetary policy: how should a central bank respond when a physical supply shock raises inflation, weakens activity, and tightens financial conditions at the same time?