Hormuz and the Global Economy: The Cascade Is No Longer a Forecast

The closure of the Strait of Hormuz following the outbreak of Operation Epic Fury on February 28 has now been in effect for nine weeks, and the economic transmission cascade that analysts projected in the first days of the conflict, including myself (see Global System Rupture), has fully materialized into measurable, compounding real-world damage. The world’s top oil traders warned at the FT Commodities Global Summit in Lausanne on April 21 that continued closure risks triggering a global recession. The IMF’s World Economic Outlook, released during the Spring Meetings, revised global growth down to 3.1 percent for 2026 and raised headline inflation to 4.4 percent in its baseline scenario, with the adverse scenario projecting growth of 2.5 percent and inflation of 5.4 percent. The IEA assessed that crude oil and refined product supply from the Persian Gulf has been cut by roughly 13 million barrels per day since the war began. EU Energy Commissioner Dan Jorgensen described the outlook as a combined 1973 and 2022 crisis that could last months or years — and warned that even a swift peace deal would not produce quick relief, with Qatar’s gas infrastructure alone potentially requiring more than two years to rebuild.

Since the start of the Iran war, jet fuel has risen 60 percent, sulfur 53 percent, urea 49 percent, heating oil and diesel 46 percent each, Brent crude 36 percent, and fertilizers 35 percent. Gunvor’s head of research warned that demand destruction may need to reach 5 million barrels per day to balance markets, and that a three-month Hormuz closure could trigger a worldwide recession. The IEA projects a demand drop of 1.5 million barrels per day this quarter concentrated in Asia, where petrochemical producers in China, Japan, and South Korea have already scaled back operations. Fertilizer prices rose 26.2 percent in March. The World Food Programme estimates the war will push an additional 45 million people into acute hunger. Forty or more energy facilities across Gulf producers have sustained severe damage, with restoration timelines measured in weeks to months.

The price data released since the war’s outbreak constitutes a comprehensive shock register across every energy, commodity, and food input category. Jet fuel at plus 60 percent, sulfur at plus 53 percent, and urea at plus 49 percent are not abstract market signals. They are the operational reality confronting airlines, industrial producers, farmers, and governments simultaneously. Lufthansa announced this week it is cutting 20,000 flights from its May through October schedule. Airlines from Vietnam to the Netherlands are canceling routes or drawing up contingency plans. Harvest-ready rice fields across Southeast Asia are lying idle as fuel and fertilizer costs have become prohibitive. The S&P 500’s comparatively modest gain of 3 percent since the war began understates the structural damage being absorbed elsewhere in the system.

Vitol CEO Russell Hardy articulated the supply-side dynamic with precision at the Lausanne conference: the world has been borrowing supply through strategic reserve drawdowns since February, but that mechanism cannot operate indefinitely. The IEA’s emergency release of 400 million barrels represents the largest in the institution’s 52-year history, and prices still rose. The US Strategic Petroleum Reserve’s maximum drawdown capacity of 4.4 million barrels per day, subject to a 13-day market lag, provides a finite buffer against a 13 million barrel per day supply removal. The arithmetic gap between available relief tools and the scale of the disruption is not closeable through policy instruments alone.

The cascade beyond energy markets is the dimension that remains most systematically underweighted in public discussion. The Gulf states now control approximately 45 percent of globally traded seaborne sulfur, a byproduct of oil and gas desulfurization and the primary feedstock for sulfuric acid, which is essential not only for phosphate fertilizers but for copper mining, battery metal extraction, and semiconductor fabrication. The Gulf provides roughly 30 percent of internationally traded ammonia, the foundational input for all mineral nitrogen fertilizers. Morocco, the world’s largest phosphate producer, depends on the Gulf for 75 percent of its sulfur and 30 percent of its ammonia, meaning that the Hormuz closure is crippling the world’s phosphate supply chain from multiple directions simultaneously. The UN Food and Agriculture Organization warns that if the crisis persists through the first half of 2026, fertilizer prices could sustain levels 15 to 20 percent above previous averages, coinciding precisely with the Northern Hemisphere’s spring planting season.

At the semiconductor layer, Qatar’s disrupted helium output compounds the picture. Qatar supplies approximately one third of the world’s helium, which is irreplaceable in extreme ultraviolet lithography and silicon crystal growth processes. Leading chipmakers are facing production adjustments at a moment of expanding enterprise demand for computing hardware. The convergence of energy, fertilizer, sulfur, helium, and logistics disruption into a single extended shock event is what the IIF’s Institute of International Finance described as a cascading industrial and agricultural squeeze — a formulation that captures the structural depth of the crisis more accurately than oil price benchmarks alone.

The macroeconomic transmission is moving through six concurrent channels: net energy import costs, fossil fuel subsidy pressures, external debt service obligations, fertilizer import costs, Gulf-origin remittance reductions, and reserve-to-import ratio deterioration. Developing countries paid $921 billion in interest in 2024. As the war drives energy and food inflation, central banks are tightening, making finance scarcer for the 3.4 billion people living in countries that already spend more on debt service than on health or education. The shock is structurally regressive in its global distribution, imposing the heaviest burdens on the economies least capable of absorbing them.

So What?

The Hormuz closure has moved beyond a price shock into a physical supply constraint, and the distinction carries decisive consequence. Price shocks are recoverable through demand adjustment and policy intervention. Physical supply constraints restructure production relationships, trade architectures, and food systems in ways that persist long after the triggering event resolves. EU Energy Commissioner Jorgensen’s assessment that even a swift peace deal would not restore the status quo ante — and that Qatar’s gas infrastructure alone could require two years to rebuild — is the correct analytical frame. The IMF Managing Director reached the same conclusion at the Spring Meetings. The world is not managing a temporary crisis. It is navigating the first phase of a structural reconfiguration whose full dimensions are still becoming visible. We are appoaching the Global System Rupture by all means.