• Any disruption in the Strait of Hormuz could trigger severe jet fuel supply stress due to limited rerouting options and strict specifications.
  • Global jet fuel inventories are already tight, with Europe and the ARA hub at multi-year lows; the Middle East holds only ~18 days of cover.
  • Even a brief shutdown could cause outsized price spikes and travel disruptions, as strategic reserves hold crude, not jet fuel.

Jet Fuel's Unique Vulnerability

The Strait of Hormuz, a critical chokepoint for global energy flows, poses an outsized risk to jet fuel markets. Unlike crude oil, which can be rerouted or replaced from other sources, jet fuel has rigid specifications and depends on specific refinery configurations. Around 3 million barrels per day of refined products pass through the strait, but jet fuel is the hardest to substitute.

"The system has minimal buffer," analysts at Melius warned in a recent note, highlighting that even a short disruption could trigger significant supply stress. Global jet fuel inventories are roughly 7 million barrels below average, with European stocks at multi-year lows. The Middle East, which supplies much of Europe's jet fuel, has just 18 days of cover.

Tight Inventories, Limited Options

Refineries cannot quickly adapt to produce more jet fuel, and restarting idle capacity takes weeks. Strategic petroleum reserves hold crude, not jet fuel, limiting emergency response. "Without a deal to reopen the strait, airlines and consumers would face sharply higher costs," said one market participant familiar with the matter. Rerouting via the Cape of Good Hope adds weeks of transit time and significantly increases costs.

Industry bodies note that Europe's jet fuel security is highly inventory-dependent, with roughly one month of demand in storage. The region's reliance on Gulf-refined jet fuel leaves it exposed, especially as domestic refining capacity has declined.

Broader Market Spillovers

A prolonged Hormuz disruption would not only lift jet fuel prices but also widen basis differentials to other refined products. LPG and naphtha flows through the strait could also be affected, amplifying price volatility across the barrel. Discussions of alternative suppliers like India and China face constraints given their own regional demand and limited spare capacity.

Outlook and Implications

Short term, the risk of jet fuel tightness remains elevated. Any reopening timeline will directly influence how quickly supply normalizes, but structural bottlenecks could keep prices elevated for months. Airlines and passengers face higher costs and potential travel delays. Governments are focusing on energy security and diversification of supply routes, but immediate relief is limited.

Correction: An earlier version of this article misstated the volume of refined products passing through Hormuz; it is 3 million bpd, not 2 million.