Iran Closes Strait of Hormuz, Citing US Blockade and Tanker Attacks

What Happens Next

• →Global oil prices spike 30-50% within weeks as approximately 20% of the world's petroleum shipments are physically blocked, triggering emergency drawdowns of strategic petroleum reserves by the US, EU, and Japan.
• →Insurance premiums for tanker transit in the Persian Gulf and Gulf of Oman increase by multiples, forcing shipping companies to reroute via longer paths (e.g., Saudi east-west pipelines to Red Sea ports), adding 2-4 weeks to delivery timelines for Asian buyers.
• →China and Russia deploy naval escort groups to the Arabian Sea to protect their tanker traffic, creating overlapping military presences with the US Fifth Fleet and raising the risk of miscalculation or proxy confrontation.
• →UN Security Council convenes emergency sessions, but diplomatic progress stalls as Russia and China block resolutions condemning Iran, leveraging the crisis to extract concessions on unrelated sanctions and trade disputes.

Near-term: Oil prices spike 30-50%, strategic petroleum reserves are tapped by major importers, and global recession fears drive equity selloffs concentrated in energy-dependent economies (e.g., India, Japan, South Korea). Long-term: The crisis permanently elevates the strategic priority of energy independence for major importers, accelerating deployment of renewables and nuclear capacity in Europe and Asia, while the US cements its role as a dominant LNG and crude exporter to allies.