Iran Permits 'Non-Hostile' Ships Through Strait of Hormuz Amid Ongoing Tensions

Iran has informed the United Nations' International Maritime Organization that "non-hostile" ships are permitted to safely navigate the Strait of Hormuz. In a letter dated March 22, Iran's Ministry of Foreign Affairs defined non-hostile vessels as those that "neither participate in nor support acts of aggression against Iran" and are not affiliated with the United States or Israel.

Despite this announcement, shipping activity through the strait remains significantly reduced. Fearing potential attacks, many tanker operators have ceased sending vessels through this critical waterway, which typically handles about 20% of the world's oil and gas shipments. According to S&P Global Market Intelligence, approximately 800 tankers are currently idling on either side of the strait.

The letter also stated that "the full restoration of security and sustainable stability in the strait is contingent upon the cessation of military aggression and threats." This suggests that a broader agreement between the involved parties may be necessary to fully resume normal shipping operations.

The ongoing disruption has led to economic repercussions, including a notable increase in oil prices. Brent crude oil prices surpassed $100 per barrel on March 8, 2026, marking the first time in four years, and peaked at $126 per barrel. This situation has been described as the largest disruption to the energy supply since the 1970s energy crisis.

Analysts indicate that the conditional nature of Iran's letter introduces uncertainty, which may cause operators and insurers to remain cautious. The situation continues to evolve, with potential implications for global energy markets and regional stability.