Full Breakdown
The Ongoing Blockade of the Strait of Hormuz: Strategies, Proposals, and Market Impacts
By Drooid · · How we work
Core Event
Iran has enforced a closure of the Strait of Hormuz, barring vessels it deems Iranian- or Israeli-owned and demanding full control over maritime transit. The United States maintains that the strait remains open for all ships, while simultaneously blockading Iranian ports. Repeated cycles of Iranian attacks on transiting vessels, U.S. strikes on Iranian missile sites, and retaliatory missile and drone launches have persisted, leaving freedom of navigation unrestored.
Background & Context
Iran’s demand for “full control” is codified in Article 5 of a Memorandum of Understanding signed with the United States on June 17. To operationalise its control, Iran created the Persian Gulf Strait Authority (PGSA) in May 2026, requiring ships to obtain online transit permits and pay tolls estimated at 5-7 % of cargo value. The United Nations Convention on the Law of the Sea (UNCLOS) guarantees freedom of passage through international straits, a principle Iran and the United States have not ratified but which the international community treats as customary law.
Proposals for Maritime Control
- Joint-administration model (July 10 2026): The London-based Bourse and Bazaar Foundation suggested a shared administration among littoral Gulf states and Iran, limiting fees to VLCCs and tying charges to servicing costs at other ports.
- Omani alternative lane (June 24): Oman, with support from the International Maritime Organisation (IMO) and the United States, sought to formalise a southern route through Omani waters, bypassing Iranian-designated passages. Iran responded with strikes that rendered the lane “unpassable due to extreme risk.”
- 50-50 split proposal (July 28): Oman offered a division of the strait into two zones, each controlled by Iran or Oman, with “voluntary fees” for transiting ships. The Gulf Cooperation Council backed the plan, but Iran rejected it, citing national security concerns.
- Temporary maritime corridor (August 25 2026): Reports indicated an agreement between Oman and Iran to create a short-term corridor; however, Iranian Deputy Foreign Minister Kazem Gharibabadi later announced that the strait remained closed.
Official Statements & Responses
- Iran’s Deputy Foreign Minister Kazem Gharibabadi affirmed that the Strait of Hormuz remains closed despite the reported temporary corridor.
- The United States continues to assert that the strait is open for all transiting ships and maintains its naval blockade of Iranian ports.
- The International Maritime Organisation has formally rejected Iran’s claim to jurisdiction over the strait, emphasizing UNCLOS provisions.
- Lloyd’s List highlighted that payments to a sanctioned state would void war-risk insurance from major underwriters such as Lloyd’s, jeopardising commercial shipping coverage.
Criticism & Opposition
Shipping operators and insurers warn that outright fee structures conflict with UNCLOS and could invalidate insurance, making such proposals unlikely to gain acceptance. The “dark transit” method raises safety and regulatory concerns. Moreover, the Gulf Cooperation Council’s backing of Oman’s 50-50 split has not persuaded Iran, underscoring divergent regional positions.
Conflicting Reports & Gaps
A reported agreement on a temporary maritime corridor on August 25 2026 contrasts with Iran’s official denial that the strait is open. No publicly available details confirm the corridor’s operational parameters, leaving its effectiveness uncertain.
What’s Next
The United Arab Emirates is accelerating construction of the West–East pipeline, projected to be operational by 2027, offering an alternative route to the Gulf of Oman. Turkey’s Four Seas Initiative aims to develop a network of hydrocarbon pipelines that bypass Hormuz, linking the Middle East with the Caucasus and Central Asia. These infrastructure projects suggest a long-term shift toward diversified export pathways, potentially reducing the strategic centrality of the Strait of Hormuz.