Iran vets friendly ships for Hormuz passage: trackers

The Strait of Hormuz, through which approximately 20% of the world's traded oil and liquefied natural gas flows, has effectively become a permission-based transit zone. Recent maritime tracking data reveals that Iran is implementing a sophisticated gatekeeping mechanism rather than a complete blockade, with vessels from allied nations being granted passage through restricted channels while others face interdiction. This tactical shift has profound implications for European investors with exposure to energy markets, shipping logistics, and supply chain-dependent sectors across Africa and Asia.

Since the escalation of Middle East tensions on February 28, 2026, Iran has systematically targeted commercial vessels, creating one of the most significant disruptions to global maritime trade in recent years. However, new intelligence from maritime tracking firms Windward and analysis by JPMorgan suggests that Tehran is operationalizing a more nuanced control mechanism. Between March 15-16, at least five commercial vessels successfully transited through the Larak-Qeshm Channel, an alternative route hugging the Iranian coast that bypasses standard shipping lanes. These weren't random passages—they appear to be part of a deliberate vetting process where Iran permits vessels from non-aligned or friendly nations to proceed while blocking vessels with US or Western affiliations.

This represents a critical distinction for market participants. A total blockade would be economically and geopolitically untenable, even for Iran. Instead, Tehran appears to be deploying its blockade as a bargaining tool and a mechanism to reward alliance partners while punishing Western-aligned actors. The vessels tracked included bulk carriers and the Pakistani-flagged oil tanker Karachi, suggesting that Pakistan and similar nations may receive preferential transit treatment. This creates a tiered system of maritime access based on geopolitical alignment.

For European investors, this development introduces several critical considerations. First, energy hedging strategies must account for a "fragmented" Hormuz rather than a completely closed one. Oil price volatility will likely persist, but may not reach the catastrophic levels a full blockade would trigger. Second, shipping and logistics companies face elevated operational costs and insurance premiums, with routes requiring verification of vessel ownership and cargo manifests to ensure "friendly nation" status. This administrative complexity will push shippers toward longer alternative routes around Africa—potentially benefiting ports in Egypt, Suez, and East Africa, while creating opportunities for logistics firms with African hub operations.

Third, European companies with supply chains dependent on Gulf energy imports face differentiation risks. Firms with transparent, non-US ownership structures or partnerships with aligned nations may gain competitive advantages in accessing Iranian-permitted corridors. However, reliance on such arrangements introduces geopolitical concentration risk that Western-aligned companies must carefully manage.

The broader implication is clear: global trade is becoming increasingly fragmented along geopolitical lines. The era of predictable, neutral shipping corridors is eroding. European investors must reassess supply chain resilience, diversify sourcing strategies away from sole reliance on Hormuz-dependent energy suppliers, and consider African logistics hubs as alternative gateways for Indo-Pacific trade.