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Tanker traffic slows in Strait of Hormuz after US and Iran clashes - Headlines news and analysis from Global Banking & Finance Review
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Tanker traffic slows in Strait of Hormuz after US and Iran clashes

Published by Global Banking & Finance Review

Posted on July 10, 2026

4 min read

· Last updated: July 10, 2026

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Strait of Hormuz Tanker Traffic Declines After US-Iran Military Clashes

Impact of US-Iran Tensions on Oil Supply and Shipping

By Ahmed Elimam and Eman Abouhassira

DUBAI, July 10 (Reuters) - Daily tanker traffic in the Strait of Hormuz appeared to have slowed on Friday, after the U.S. and Iran exchanged hostilities this week and renewed their arguments over who was in control of passage through the critical waterway. 

The attacks renewed concerns about the recovery of global oil supplies and shipping, and highlighted the fragility of an interim truce while the U.S. and Iran hammer out a lasting agreement.

Oil prices eased on Friday but remained on track for weekly gains of 4-5% after the flare-up.

Global Oil Supply and Market Response

GLOBAL OIL SUPPLY UP BUT STILL BELOW PRE-WAR LEVELS

The International Energy Agency said global oil supply rose by 4.1 million bpd in June as shipping through the strait resumed, but remained 9.4 million bpd below pre-war levels.

It warned of tight diesel and gasoline supplies, and said refineries were slower to react to the reopening of the strait than crude prices.

Strait of Hormuz: Strategic Importance and Control

The Strait of Hormuz handled about a fifth of global oil supplies before the war. Tehran has since largely taken control of the waterway, forcing a stalemate in its confrontation with the world's most powerful military. 

Under the interim deal, the U.S. ended its naval blockade of Iranian ports, and Iran agreed to ensure safe passage of commercial vessels. 

Recent Military Actions and Diplomatic Efforts

However, this week Washington accused Iranian forces of attacking three tankers in the area and struck military sites on Iran's southern coast and eastern provinces in response. While Iran has not claimed responsibility for those attacks, analysts say Tehran uses such actions to gain leverage in negotiations.

Iran then attacked U.S. military sites in Gulf states on Thursday.

The U.S. said its action aimed to keep the strait open and that Iran did not control the waterway. Tehran warned however that the strait would only be reopened on its terms, and any U.S. intervention would draw a "crushing response".

The attacks on the three Qatari and Saudi shipping vessels prompted U.S. President Donald Trump to declare the truce "over," but a U.S. official later said Washington was still committed to finding a resolution with Iran and "technical talks continue".

The New York Times reported that Qatar had been in talks with Washington and Tehran to deescalate the crisis.

Prior to this week's attacks, daily tanker traffic had risen to its highest since the war began, averaging 40 ships transiting the strait. That was still far off the pre-conflict average of 125 to 140 daily sailings.

Condolence Ceremony for Khamenei

CONDOLENCE CEREMONY FOR KHAMENEI

Iran on Thursday buried its slain Supreme Leader Ayatollah Ali Khamenei at the country's holiest shrine in Mashhad, capping a week of funeral processions and rallies.

Khamenei was killed in an airstrike on the first day of the war on February 28, as part of a U.S.-Israeli barrage against Iran that set off a months-long conflict killing thousands and throttling worldwide energy supplies.

A condolence ceremony will be held on Friday after sunset prayers on behalf of Supreme Leader Mojtaba Khamenei for his father in the city of Qom, his office announced. Mojtaba Khamenei, who was injured in the strike that killed his father, has still not appeared in public. 

Ending the War

ENDING THE WAR

Trump's inability to end the war has frustrated the president, whose Republican Party faces midterm elections later this year amid high gas prices and voter discontent.

U.S. Central Command said on Wednesday its forces had struck approximately 90 Iranian military targets. Iranian state media said those attacks killed 14 people and injured 78. 

Iran's army said it had launched attacks on U.S. Patriot systems in Kuwait, an early-warning site in Qatar and a U.S. Army fuel depot in Bahrain. The Revolutionary Guards later said Iran had fired 10 ballistic missiles at Jordan's Azraq military base, used by U.S. forces.

(Additional reporting by Jonaathan Saul; writing by Alexandra Hudson; editing by Philippa Fletcher)

Key Takeaways

  • Ship‑tracking data shows at least four tankers turned back from the strait as security risk escalates amid new attacks and retaliation (investing.com)
  • Daily tanker transits had previously rebounded to an average of 40 from pre‑conflict lows but remain well below the 125–140 ship daily norm seen before February (internazionale.it)
  • The IEA reports global oil supply rose in June, though remains significantly below pre‑war levels, with product markets still tight due to lagging refinery throughput (iea.org)

References

Frequently Asked Questions

Why has tanker traffic slowed in the Strait of Hormuz?
Tanker traffic slowed due to renewed clashes between the US and Iran, leading to concerns over the safety of passage through the critical waterway.
How do US-Iran tensions affect global oil supply?
US-Iran tensions have disrupted shipping through the Strait of Hormuz, impacting global oil supply and causing oil prices to rise.
What is the significance of the Strait of Hormuz for oil transport?
The Strait of Hormuz handles about a fifth of global oil supplies, making it a vital passageway for energy shipping worldwide.
What agreements or actions have been taken to secure the Strait of Hormuz?
An interim deal saw the US end its naval blockade and Iran promise safe passage, but recent attacks have jeopardized these efforts.
How have oil prices responded to the recent hostilities?
Oil prices eased slightly on Friday but remained up 4-5% for the week, reflecting ongoing uncertainty and supply concerns.

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