Iran Rules Out Closing Strait of Hormuz, Asserts Right to Monitor Traffic
Iran's UN Ambassador Amir Saeid Iravani stated on March 12, 2026 that Tehran would not close the Strait of Hormuz, while asserting Iran's right to preserve security in the waterway.
Iran's foreign ministry spokesperson simultaneously stated that ships must coordinate with Iran's navy to pass through the strait.
This came in response to a statement by new Iranian Supreme Leader Mojtaba Khamenei, who said the "lever of blocking the Strait of Hormuz must continue to be used" as a strategic threat.
The split between Tehran's UN diplomatic messaging (reassurance) and the Supreme Leader's rhetoric (threat) reflects Iran's dual-track pressure strategy on global energy markets.
The Strait of Hormuz: Strategic Geography
The Strait of Hormuz is a narrow sea passage connecting the Persian Gulf to the Gulf of Oman, forming the sole maritime exit for oil and gas exports from Kuwait, Iraq, Iran, UAE, Qatar, and Saudi Arabia's eastern coast. At its narrowest point it is approximately 33 km wide, with two 3.2 km shipping lanes separated by a 3.2 km buffer zone. Its geographic chokepoint status makes it uniquely powerful as a lever in international energy geopolitics.
Iran's statement that ships must "coordinate with the navy" — even while denying formal closure — is a form of de facto controlled passage that already disrupts the free flow principle underpinning global energy trade through the strait.
UNCLOS and Transit Passage Rights
The United Nations Convention on the Law of the Sea (UNCLOS, 1982) establishes that straits used for international navigation are subject to the right of "transit passage" — a right that cannot be suspended by the bordering state, unlike the "innocent passage" right in territorial waters. Iran has not ratified UNCLOS but is bound by many of its provisions under customary international law.
Iran's insistence on "coordinating" vessel passage with its navy is legally contested — under UNCLOS transit passage, no such coordination requirement can be imposed. This represents Iran using its physical geographic dominance to exert a kind of de facto control that international law would otherwise prohibit.
Iran's Historical Use of Hormuz as a Coercive Lever
Iran has repeatedly threatened to close or disrupt the Strait of Hormuz during periods of heightened tension with the West — particularly in response to sanctions. These threats have never resulted in a full closure (which would also harm Iran's own oil exports and provoke overwhelming US military response), but they have been used effectively to rattle global oil markets and extract diplomatic concessions.
Key Details
- 1980: Iran closed the strait briefly during the Iran-Iraq War (tanker war)
- 2011–12: Iran threatened closure in response to US/EU oil sanctions; global oil prices spiked
- 2019: Iran seized multiple tankers including the British-flagged Stena Impero in retaliation for UK seizure of an Iranian tanker near Gibraltar
- US Fifth Fleet (headquartered in Bahrain) maintains continuous naval presence to deter closure
- Iran's IRGC Navy operates fast attack craft, anti-ship missiles, and naval mines — asymmetric tools to harass rather than conventionally block the strait
- A full closure would violate Iran's own economic interests: Iran exports oil through Hormuz
Iran's dual messaging — UN Ambassador denying closure while the Supreme Leader invokes it as a lever — reflects the same coercive strategy Iran has used for decades: maximise strategic ambiguity to keep global energy markets anxious without triggering an overwhelming military response.
Bypass Infrastructure for Persian Gulf Oil
Recognising Hormuz vulnerability, several Gulf states have invested in pipeline infrastructure to export oil while bypassing the strait. However, these alternatives have limited capacity relative to total Gulf oil output.
Key Details
- Saudi Arabia: Petroline (East-West Pipeline), capacity ~5 million bpd, runs from Abqaiq to Yanbu on Red Sea coast
- UAE: Habshan-Fujairah pipeline, capacity ~1.5 million bpd, to Fujairah on Gulf of Oman (outside Hormuz)
- Iraq: Kirkuk-Ceyhan pipeline via Turkey, capacity ~1.6 million bpd (frequently disrupted)
- Total bypass capacity: approximately 7–8 million bpd vs. ~20 million bpd through Hormuz — substantial but far from complete replacement
- Qatar has no viable alternative: its LNG terminals are all on the Persian Gulf side
Even with bypass pipelines operating at full capacity, a genuine Hormuz closure would still cut global oil supply by ~12–14 million bpd — equivalent to roughly 12–14% of global consumption — driving a catastrophic price spike and energy crisis for import-dependent countries like India.
- Iran's UN Ambassador: Amir Saeid Iravani
- Iran's new Supreme Leader: Mojtaba Khamenei (following the death of Ayatollah Ali Khamenei in the conflict)
- Strait width at narrowest: ~33 km; two 3.2 km shipping lanes
- Daily oil flow through Hormuz: ~20–21 million barrels (~20% of global petroleum liquids)
- Iran has NOT ratified UNCLOS (India has — ratified in 1995)
- US Fifth Fleet: headquartered in Manama, Bahrain
- Saudi Arabia's Petroline bypass capacity: ~5 million bpd
- UAE's Fujairah bypass capacity: ~1.5 million bpd