Armed Conflicts.org
RecordACM-STR-HOR
Revision2026-08-06
StatusReopening (constrained)
Sourced claims1
Reopening under deal · Still constrained

The Strait of Hormuz Crisis (2026): Closure & Reopening

Iran closed the Strait of Hormuz in the 2026 war; the new US–Iran deal reopens it toll-free for 60 days. Here is what the strait is, why ~20% of the world's oil depends on it, its current transit status, and what reopening really takes.

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Status
Reopening (constrained)
Share of world oil
~20%
Width at narrowest
~33 km
Deal terms
Toll-free 60 days
Closed since
Feb 2026 (full Jun)

Last updated: 2026-08-06 · Developing story — figures and status change rapidly; verify against the live sources below.

Key facts

  • Is the Strait of Hormuz open? It is reopening: the US lifted its naval blockade on 18 June 2026 and traffic is rebounding — about 20 tankers transited on 19 June, the most since early June — but volumes remain only ~5–10% of normal while mines are cleared.
  • Roughly a fifth of the world's oil and much of its LNG passes through the strait, which is only about 33 km wide at its narrowest.
  • Under the deal, the US lifted its naval blockade and Iran is to clear mines and technical obstacles within 30 days; future administration of the strait is to be negotiated with Oman.
  • Traffic is still far below the 90+ ships a day seen before the war; the Bahrain-based JMIC downgraded the Hormuz threat level from ‘Severe’ to ‘Substantial,’ but war-risk insurance stays elevated and a tanker backlog will take weeks to clear.
  • Analysts (e.g. Baker Hughes) warn crude-export volumes may not fully normalize until the second half of 2026.

Latest developments

Headlines below update automatically from Google News and link to primary reporting; last refreshed 2026-08-06.

Is the Strait of Hormuz open in 2026?

Yes — it is reopening, though traffic is far from normal. Under the June 2026 US–Iran deal, Iran reopened the strait toll-free for commercial vessels for 60 days and the US lifted its naval blockade on 18 June 2026. Traffic has rebounded — at least 20 tankers transited on 19 June, the most since early June, and Saudi and other Gulf tankers have resumed crossings — but volumes remain only about 5–10% of pre-war levels. The Bahrain-based Joint Maritime Information Center downgraded its Hormuz threat classification from ‘Severe’ to ‘Substantial,’ while mine clearance, high war-risk insurance and demands for verified safety assurances keep transits suppressed. Check live shipping advisories for the current picture.

Why does the Strait of Hormuz matter so much?

The Strait of Hormuz connects the Persian Gulf to the open ocean. Roughly a fifth of the world's oil — and a large share of its liquefied natural gas — passes through it. At its narrowest it is only about 33 kilometres wide, with shipping lanes hugging waters Iran can range with missiles, mines and fast boats. There is no full substitute: bypass pipelines can carry only a fraction of the volume.

What does the deal say about reopening Hormuz?

Under the 14-point memorandum, Iran guarantees toll-free safe passage for commercial vessels for 60 days (Persian Gulf ↔ Sea of Oman) and undertakes to remove technical and military obstacles and clear mines within 30 days; the US lifts its naval blockade, fully within 30 days. The strait's longer-term administration is to be negotiated with Oman. See the full terms on the US–Iran peace deal page.

Why isn't traffic back to normal? Mines, insurance and backlog

Reopening durably is slow. Iran designated a central mine-danger zone, and until mines are cleared ships are funnelled into coastal lanes ill-suited to normal volumes; France and Britain have worked since March to assemble a mine-clearance coalition. War-risk insurance for tankers spiked to several times pre-crisis levels, and some protection-and-indemnity cover was withdrawn. US officials say the strait should approach normal within 30 days, but shipping analysts caution that clearing the tanker backlog will take weeks and that crude-export volumes may not fully normalize until the second half of 2026.

Impact on oil prices and the global economy

The closure triggered one of the largest oil-supply shocks in the history of the global market, with sharply higher and more volatile prices and freight and insurance costs. Prices have swung on each twist of the war and the deal; because spot quotes move hourly, treat any single figure as a snapshot and check live market data. The Hormuz crisis is tightly linked to the wider Iran–US war and Iran's attacks on US bases across the Gulf.

Timeline of the 2026 Iran war

  • Jun 2025 — The 'Twelve-Day War' between Israel and Iran (Operation Midnight Hammer) sets the stage for a wider confrontation — a distinct earlier conflict.
  • 28 Feb 2026 — The US (Operation Epic Fury) and Israel (Operation Roaring Lion) launch coordinated airstrikes on Iran's military and nuclear sites; Supreme Leader Ali Khamenei is reported killed in the opening hours and Iran begins blocking the Strait of Hormuz.
  • 9 Mar 2026 — Iran's Assembly of Experts names Mojtaba Khamenei as the new Supreme Leader, per Iranian state media.
  • 21 Mar 2026 — US bunker-buster strikes hit the Natanz nuclear facility; Fordow and Isfahan are also struck.
  • Apr 2026 — A ceasefire pauses the heaviest fighting after roughly two months of strikes.
  • 7–8 Jun 2026 — Iran fires ballistic-missile barrages at Israel; Israel strikes across Iran — the April truce collapses.
  • 9–11 Jun 2026 — US forces strike Iranian air-defense sites; Iran's IRGC attacks US bases across the Gulf (Al Udeid, Ali Al Salem, Al Dhafra, Bahrain) and declares the Strait of Hormuz fully closed.
  • 12 Jun 2026 — US and Iran reach a final agreed text for a ceasefire memorandum after mediation led by Pakistan, with Qatar and Oman.
  • 14–15 Jun 2026 — The 14-point 'Islamabad Memorandum of Understanding' is digitally signed; VP JD Vance announces the signing on 15 June.
  • 17 Jun 2026 — Trump signs a hard copy at Versailles and Iran confirms the electronic signing; the planned 19 June Geneva ceremony is cancelled. A 60-day window opens to negotiate a final, UN-endorsed deal.
  • 18 Jun 2026 — US Central Command lifts the naval blockade of Iran's ports; the 60-day clock to negotiate a final deal begins.
  • 19 Jun 2026 — Strait of Hormuz traffic rebounds — at least 20 tankers transit, the most since early June, though still far below pre-war levels. Israel and Hezbollah agree a separate US/Qatar/Iran-mediated ceasefire after a deadly flare-up in southern Lebanon.

Follow the whole Iran war & peace deal

This page is part of our Iran-war coverage cluster. Explore the connected analyses:

Iran–US WarMain war tracker (pillar)US–Iran peace dealThe 14-point Islamabad MOUIran war timelineFeb 28 → present, datedIran nuclear dealThe 60-day final-deal talksIran's nuclear programStockpile, sites, strikes$300bn reconstruction fundWho pays, conditionsIran sanctions reliefOil, frozen assets, scheduleHezbollah ceasefireThe Lebanon frontAttacks on US basesWhich bases were hitIran's red linesHow they shiftedIran war newsLatest headlinesIran–Israel warThe Israel front

Frequently asked questions

Is the Strait of Hormuz open in 2026?

It is reopening: the US lifted its naval blockade on 18 June 2026 and tanker traffic rebounded to about 20 transits on 19 June — the most since early June — though volumes remain only ~5–10% of pre-war levels while mines are cleared and war-risk insurance stays high. The status changes frequently, so check live shipping advisories.

When will the Strait of Hormuz fully reopen?

Under the deal, the US lifts its naval blockade within 30 days and Iran is to clear mines within 30 days, but analysts including Baker Hughes warn that crude-export volumes may not fully normalize until the second half of 2026 — potentially four to six months after a durable reopening, given mine clearance and insurance.

Why is the Strait of Hormuz so important?

About a fifth of the world's oil and much of its LNG passes through the strait, which is only around 33 km wide at its narrowest. There is no pipeline network that can fully replace it, so a closure causes a major global energy shock.

Does the US–Iran deal reopen Hormuz for free?

Yes, temporarily. The memorandum has Iran guarantee toll-free safe passage for commercial vessels for 60 days; after that, the strait's administration — including any fees — is to be negotiated, with Oman involved. Iran retains physical control of its side of the waterway.

Sources & further reading

Primary reporting and analysis used to build this page. Treat all wartime figures as contested estimates and verify against the original source before reuse.

Source provenance & how to cite this page

  • News feed 0 days · as of 2026-08-06
Date Change Source
2026-08-06 Headlines refreshed News feed
ACM-STR-HOR — The Strait of Hormuz Crisis (2026): Closure & Reopening. Global Armed Conflicts Map. https://armedconflicts.org/strait-of-hormuz-crisis.html
Sources & disclaimer. This is a fast-moving story and figures are contested estimates, not confirmed counts. Reporting is aggregated from outlets and trackers including Reuters, AP, Al Jazeera, Wikipedia, the CFR Global Conflict Tracker, and Google News. Casualty figures, MOU terms and contested claims are attributed inline to a named source and date; always verify against primary reporting before relying on any figure.