Chokepoint · Persian Gulf

Strait of Hormuz

Closed since February 28, 2026Updated September 29, 2026

The Strait of Hormuz is the sea passage between Iran and Oman that connects the Persian Gulf to the open ocean. It is 39 km wide at its narrowest. Before Iran closed it in 2026, about 21 million barrels of oil a day passed through it, a fifth of all the oil the world uses.

Ship counts from IMF PortWatch · Oil flows from the US Energy Information Administration

Satellite image of the Strait of Hormuz, with Iran at the top and the Musandam peninsula reaching up from the south Map showing where the Strait of Hormuz is
The strait from orbit, December 2020. NASA MODIS, public domain.
Width at the narrowest
39 km
21 nautical miles
Shipping lanes
2 × 3 km
One each way, in Omani waters
Oil a day, early 2025
20.9 million
barrels, 20% of world use
Ships a day
4
92 a day in 2023
Shores
IranOman

Where is the Strait of Hormuz?

Between Iran to the north and the Musandam peninsula to the south, which belongs to Oman. The strait links the Persian Gulf with the Gulf of Oman and the Arabian Sea. Every tanker that loads oil in Iraq, Kuwait, Qatar or Bahrain has to pass through it.

Map of the Strait of Hormuz showing Iran, the Musandam peninsula of Oman, the United Arab Emirates, the shipping lanes and the 39 km gap at the narrowest point IRAN MUSANDAM
(OMAN)
OMAN UNITED ARAB EMIRATES Persian Gulf Gulf of Oman Bandar Abbas Dubai Fujairah Abu Musa Tunb islands Shipping lanes 39 km
Map of the Strait of Hormuz showing Iran, the Musandam peninsula of Oman, the United Arab Emirates, the shipping lanes and the 39 km gap at the narrowest point IRAN MUSANDAM
(OMAN)
Persian Gulf Gulf of Oman Bandar Abbas 39 km
Shipping lanes Pipeline from Habshan to Fujairah, around the strait Abu Musa and the Tunb islands are held by Iran and claimed by the UAE

Is the Strait of Hormuz closed?

Yes. Iran's Revolutionary Guards closed the strait on February 28, 2026, hours after US and Israeli airstrikes on Iran. In the four weeks to September 20, about 4 ships a day passed through. In 2023 the average was 92. A deal signed on June 17 let some ships through until it collapsed on July 8. On September 25 Iran's foreign minister publicly offered to reopen the strait within a week. President Trump rejected the offer the next day.

Ships through the strait each day

Weekly average, January 2023 to September 2026

02550751001251502023202420252026Feb 28, 2026Iran closes the strait 0255075100125150202420252026Feb 28, 2026Iran closes the strait
2023 average, 92 a dayIMF PortWatch, from ship tracking data. Ships with their transponders off are not counted.

How much oil goes through the Strait of Hormuz?

About 20.9 million barrels a day in the first half of 2025, according to the US Energy Information Administration. That was one barrel in every five the world used. More than a fifth of the world's liquefied natural gas also went through, most of it from Qatar. Nine tenths of the crude oil went to Asia.

One in five barrels

Through the Strait of Hormuz, 20.9 million barrels a day Everywhere else

Where the strait's crude oil went, early 2025

  • China, India, Japan and South KoreaThe four largest buyers
  • The rest of AsiaTaiwan, Thailand, Singapore and others
  • Europe, the Americas and AfricaAbout one barrel in nine
Crude oil and condensate, January to June 2025. US Energy Information Administration, March 2026.

Can oil get around the Strait of Hormuz?

Only a small part of it. Saudi Arabia can pump crude west to the Red Sea through its East-West pipeline. The United Arab Emirates can send crude from Habshan to Fujairah, a port outside the strait. The EIA estimated in 2025 that about 2.6 million barrels a day of pipeline capacity was unused and could avoid the strait.

Oil through the strait, early 202520.9 million barrels a day
Unused pipeline capacity around it2.6 million

No pipeline around the strait

  • Iraq
  • Kuwait
  • Qatar
  • Bahrain
  • Iran

Who controls the Strait of Hormuz?

Iran and Oman. Each country's territorial waters reach 12 nautical miles from its coast. The strait is only 21 nautical miles wide, so the two zones meet in the middle and no international waters are left. The shipping lanes run through Omani waters.

The UN Convention on the Law of the Sea gives ships the right to pass through straits like this one. Iran signed the convention in 1982 but has never ratified it.

Across the strait at its narrowest

21 nautical miles, 39 km

Not to scale. The dashed line is the median line between the two coasts.

The strait since 1980

  1. 1984–88The Tanker War. Iran and Iraq attack each other's oil tankers. The US Navy escorts Kuwaiti tankers.
  2. 1988The USS Vincennes shoots down Iran Air Flight 655 over the strait. All 290 people on board are killed.
  3. 2019Limpet mines damage tankers near the strait. Iran seizes the British-flagged tanker Stena Impero.
  4. Feb 2026Iran closes the strait after US and Israeli airstrikes. On April 30 Brent crude briefly reaches $126 a barrel.
  5. Jun 2026The Islamabad Memorandum lifts the closure and the US blockade of Iran's ports.
  6. Jul 2026The deal collapses after Iranian strikes on three tankers. The US reimposes its blockade.

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