The Strait of Hormuz disruption represents the most severe single supply shock to the global oil market in over three decades. An estimated 10 million barrels per day of Gulf crude and condensate production has been effectively shut in or rerouted through higher-cost alternatives. This is equivalent to approximately 10% of global oil supply.

OPEC+ spare capacity, concentrated primarily in Saudi Arabia and the UAE, stands at an estimated 3 to 4 million barrels per day — insufficient to fully offset the Hormuz disruption. Moreover, some of this spare capacity may be inaccessible due to the same geopolitical risks affecting Gulf production. The IEA has authorized a coordinated strategic petroleum reserve release, but volumes remain limited relative to the scale of the disruption.

The supply deficit has triggered demand destruction in price-sensitive markets. U.S. gasoline demand has declined 3–5% year-on-year, and jet fuel consumption, while still growing, is below pre-disruption forecasts. High prices are beginning to curb consumption in emerging markets with lower fuel purchasing power, particularly in Southeast Asia and parts of Africa.

OPEC's latest Monthly Oil Market Report maintains a bullish demand outlook, projecting global oil demand growth of 1.4 million barrels per day in 2026 to reach approximately 106 million barrels per day. The report assumes a balanced market under current supply conditions, but acknowledges that the disruption creates significant uncertainty around the supply-demand balance.

What this means for buyers

The 6–7 million bbl/day supply shortfall is structural, not cyclical. Until the Hormuz situation resolves, oil prices will remain elevated with periodic spikes on any escalation. Procurement teams should stress-test budgets at $110/bbl for H2 2026 and build flexibility into supply contracts for potential allocation scenarios.