Iran has officially announced a "special regime" for Russian ships passing through the Strait of Hormuz, formalizing its preferential treatment for friendly nations.
For several months, a tense situation has been unfolding in the Strait of Hormuz, one of the world's most vital oil shipping lanes. Since late February 2026, Iran has asserted greater control, creating what is effectively a "friend-or-foe" system for passage. Reports describe a multi-layered system run by Iran's Islamic Revolutionary Guard Corps (IRGC), involving checkpoints, ship vetting, and in some cases, "security fees." This means ships from nations Iran considers "friendly," like Russia and China, are allowed through, while vessels linked to the U.S. and its allies face restrictions.
So, what does this new announcement about a 'special regime' for Russia really mean? It's essentially putting an official stamp on a practice that was already happening. First, it codifies this informal system into a clear diplomatic policy. This gives Moscow a formal guarantee of preferential treatment—such as fee exemptions and expedited vetting—which in turn puts other, non-aligned shipping companies at a greater disadvantage and widens compliance asymmetries.
Second, this policy directly challenges international maritime law. The UNCLOS (United Nations Convention on the Law of the Sea) establishes a right of "transit passage" for all ships through such straits. By making passage conditional on its approval, Iran is defying this global norm. Furthermore, the U.S. has warned that any payments made to the Iranian government or the IRGC for "safe passage" are prohibited and could trigger secondary sanctions on the shipping companies, banks, and insurers involved, even if the cargo has no U.S. connection.
Third, this geopolitical maneuvering has a direct impact on the global economy through oil prices. The constant risk of disruption in the Strait of Hormuz has kept a significant risk premium on oil. Brent crude, the international benchmark, remains about 30% higher than its pre-crisis levels. This "special regime" solidifies the market's segmentation, explaining why the overall risk premium remains high even as select "friendly" ships get a pass. This sustained uncertainty keeps both oil prices and shipping insurance costs elevated.
- Strait of Hormuz: A narrow, strategically important waterway between Iran and Oman, through which about a fifth of the world's oil consumption flows.
- UNCLOS (United Nations Convention on the Law of the Sea): An international treaty that establishes a legal framework for all marine and maritime activities.
- Risk Premium: An additional cost included in the price of an asset (like oil) to compensate for the higher risk of investing in or relying on it, often due to political instability or potential supply disruptions.