The International Energy Agency warned that continued closures of the Strait of Hormuz could deplete global oil stocks and disrupt energy markets.

This strategic waterway between Oman and Iran serves as a critical artery for global oil shipments. Any prolonged blockage threatens to trigger severe supply shortages and drive prices higher for consumers worldwide.

Fatih Birol, the executive director of the IEA, said that significant disruptions in energy markets are expected if the U.S. and Iran do not cooperate soon to improve oil flow through the strait [1]. The agency said that the current lack of diplomatic cooperation between the two nations is a primary driver of the instability.

Market volatility has already manifested in pricing. Brent crude for September delivery has surpassed $91.48 per barrel [3]. Other reports indicate that Brent prices have exceeded $100 per barrel [2].

Kuwaiti expert Al-Shatti said that the combination of a prolonged closure of the Strait of Hormuz, the closure of Bab al-Mandab, and targeted attacks on tankers collectively result in high oil prices [4]. These overlapping maritime threats create a compounded risk for global logistics.

Despite the immediate warnings regarding stock depletion, the IEA provided a different long-term outlook in June 2026. The agency expects the oil market to recover gradually and predicts a significant oil surplus by 2027 [5].

This contrast between immediate risk and long-term surplus suggests a period of extreme volatility. While the 2027 forecast offers a potential reprieve, the current geopolitical tension in the Strait of Hormuz remains the dominant factor for current market pricing.

If the United States and Iran do not cooperate soon to improve the flow of oil through the Strait of Hormuz, we should expect a major disruption in energy markets.

The tension in the Strait of Hormuz creates a critical bottleneck for global energy security. While the IEA forecasts a surplus by 2027, the immediate risk of stock depletion shows that global markets lack the short-term resilience to withstand a total blockade. The reliance on US-Iran diplomacy to stabilize prices underscores how geopolitical instability in a single maritime corridor can dictate global inflation and energy costs.