The "Hormuz Detour": Is Iran Running a Selective Toll Booth for the Global Economy?

Palaemon Maritime
7 days ago
3 min read

At least five ships have transited the Strait of Hormuz, but did so via the irregular route of passing through the narrow channel in the Iranian TTW between Larak Island and Qeshm. This blog article investigates this development and assesses the implications for shipping in the area.

For weeks, the global energy sector has held its breath as the Strait of Hormuz, the world's most critical maritime chokepoint, remained effectively sealed by an Iranian naval blockade. Since late February 2026, the vital artery through which roughly a sixth of global oil consumption passes has been a dangerous stalemate.

However, recent satellite data and intelligence reports suggest a subtle, yet profound, shift in Tehran's strategy. Emerging evidence points to the creation of a selective "safe passage" corridor, raising critical questions about the blockade's future and the shifting geopolitics of the Persian Gulf crisis.

AIS tracking of Karachi, as it passed through the Straight of Hormuz amidst Iran's naval blockade — Past AIS track of Karachi (Credit: Marine Traffic)

The Larak-Qeshm Gap: A New, Monitored Route

The first definitive sign of this shift emerged between March 15th and 17th. While the central, deep-water shipping lanes remained empty of commercial traffic, maritime analysts and vessel-tracking services observed a surprising anomaly: five commercial vessels navigated the Strait, but not via standard international routes. Instead, they traced a path deep within Iranian Territorial Waters (TTW), utilizing the narrow channel between Larak Island and Qeshm.

This shallow waterway is an operational imperative for the Islamic Revolutionary Guard Corps (IRGC). By forcing ships into this gap, Iran has effectively moved the international shipping lane into its own backyard, within range of coastal missile batteries and naval bases. This allows the IRGC to exercise complete, uncontested control and conduct "on-the-fly" verification and detention of every vessel passing through.

The "Aided and Approved": A Profile of the Five Vessels

To understand why these ships were allowed through while hundreds of others remain stranded, we must look at who they are and what they were carrying. The "safe passage" granted by Iran appears reserved for a very specific clientele:

The State-Linked Tanker: The Karachi (IMO 9903413) is a Pakistani government-owned Aframax. Its passage likely represents a diplomatic "green light" between Islamabad and Tehran rather than a shift in general maritime safety.
The Iranian Cargo Carriers: Three of the five vessels—MDL Kamran (IMO 9189770), Lacon (IMO 9277565), and Anthea (IMO 9317729)—had all recently loaded cargo at Bandar Khomeini, Iran. By allowing these bulk carriers through to the UAE and Sri Lanka, Iran is ensuring its own exports continue to flow despite the regional chaos.
The Shadow Player: The Sea Bird (IMO 9088536) is a sanctioned LPG tanker known for AIS spoofing. Its presence suggests that Iran is prioritizing the movement of the "shadow fleet" and sanctioned trade over legitimate international commerce.
The Reality Check: This is not a relief for the global energy shortage. With 60% of these vessels carrying Iranian-origin cargo and another being a sanctioned tanker, this "opening" is a one-way street benefiting the Iranian economy.

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A "Permission-Based" Chokepoint

This operational shift has profound strategic implications, replacing the long-held principle of "Freedom of Navigation" with a coercive "Permission to Navigate" model.

Normal traffic through the Strait remains decimated, as some estimate it to be a 97% reduction. While Western-owned or allied ships remain barred, Tehran is using this coastal channel as a sophisticated political lever. This creates a new tier of shipping: those granted Iranian safe passage. It forces nations like India, which has deployed naval assets (Operation Sankalp) to the Gulf of Oman, into a difficult position—waiting for "green lights" from Iranian controllers rather than attempting to enforce passage.

Conclusion: Strategic Shift, Not Resolution

The successful transits through the Larak-Qeshm gap should not be mistaken for a thawing of the crisis. Iran’s strategic goal of using the chokepoint to pressure the U.S. and its regional allies remains unchanged.

What we are witnessing is the evolution of the blockade. Tehran is experimenting with a managed approach, rewarding sympathetic nations and testing the limits of international acceptance. While these five ships may represent cracks in the blockade, they simultaneously cement a dangerous new precedent: Global maritime trade is no longer governed by international law in the Strait of Hormuz; it is governed by an IRGC checkpoint.