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Oil prices rise as no end to Iran war stand-off seems in sight

Published by Global Banking & Finance Review

Posted on April 28, 2026

5 min read

· Last updated: April 28, 2026

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Oil ends up nearly 3% as Hormuz disruption outweighs UAE OPEC exit

By Siddharth Cavale

Market Reactions to Hormuz Disruption and UAE OPEC Exit

NEW YORK, April 28 (Reuters) - Oil prices closed up nearly 3% on Tuesday as persistent worries about supply constraints from the closed Strait of Hormuz outweighed concerns about the United Arab Emirates' decision to leave OPEC and the wider OPEC+ group. 

Oil Price Movements and Market Dynamics

 Brent futures for June ended up $3.03 or 2.8% at $111.26 a barrel, marking its seventh consecutive day of gains. U.S. West Texas Intermediate (WTI) futures for June settled up $3.56 or 3.7% at $99.93 a barrel, after briefly trading above $100 earlier in the session for the first time since April 13.

Prices trimmed some of the advances after the United Arab Emirates, the fourth-largest producer in OPEC+, said on Tuesday it would exit the group on May 1, dealing a blow to the oil-exporting groups and their de facto leader, Saudi Arabia. 

Analyst Insights on UAE's OPEC Exit

"In normal times, this would have been very bearish news for the oil market and sparked a sizable selloff," said John Kilduff, partner at Again Capital.

He estimated the UAE could quickly add between 1 million and 1.5 million barrels per day of output. "But with the Strait of Hormuz effectively closed, there's nowhere for that supply to go ... so we're likely to see oil prices continue their slow march higher," he added.

Geopolitical Tensions and Supply Disruptions

US-Iran Relations and Strait of Hormuz Closure

U.S. President Donald Trump was unhappy with the latest Iranian proposal to end the war, a U.S. official said on Monday, as Iranian sources disclosed that the proposal would avoid addressing the nuclear programme until hostilities cease and Gulf shipping disputes are resolved.

Trump's displeasure with the offer leaves the conflict deadlocked, with Iran shutting shipping flows through the strait, a conduit for about 20% of global oil and liquefied natural gas supplies, and the U.S. retaining its blockade of Iranian ports.

"With peace talks stalled and no clear path to reopening the Strait of Hormuz, traders are factoring in a prolonged disruption to a critical artery of global supply," said Rystad Energy analyst Jorge Leon.

An earlier round of negotiations between the United States and Iran collapsed last week after face-to-face talks failed.

Impact on Shipping and Tanker Traffic

Ship-tracking data showed significant disruptions in the region, with six Iranian oil tankers forced to turn back due to the U.S. blockade, but some traffic is still moving.

The Idemitsu Maru, a Panama-flagged tanker carrying 2 million barrels of Saudi oil, and an LNG tanker managed by the United Arab Emirates' Abu Dhabi National Oil Co (ADNOC) crossed the Strait on Tuesday, shipping data showed. The ADNOC tanker was the first loaded LNG tanker to cross since the Iran war started on February 28. 

Prior to the U.S.-Israeli war on Iran, which began on February 28, between 125 and 140 vessels transited the strait daily.

Global Oil Storage and Price Outlook

The amount of crude oil held around the world on tankers that have been stationary for at least seven days rose to 153.11 million barrels as of April 24, Vortexa data shows. That figure is the highest since January, and up 25% from 122.60 million on April 17.

   The World Bank said on Tuesday that global energy prices could rise 24% in 2026 to their highest level since Russia’s invasion of Ukraine, even if the most severe Middle East supply disruptions ease by May. Its baseline assumes shipping through the Strait of Hormuz gradually recovers by October, but it said the risks were "markedly tilted" toward higher prices. 

US Market and Global Supply Chain Developments

US Gasoline Prices and Inventory Data

In the United States, gasoline prices climbed to their highest in nearly four years, AAA data showed.  Later in the day, market sources citing American Petroleum Institute figures said the U.S. had drawn down 8.67 million barrels of gasoline in the week ended April 24, while crude oil inventories also declined. The drawdown was sharply higher than the nine analysts polled by Reuters estimated. 

The U.S. Energy Information Administration will release its own storage reports on Wednesday.

International Refinery and Export Updates

A Ukrainian drone attack sparked a major blaze at Russia’s Tuapse refinery, which has annual production capacity of 240,000 barrels per day, turning out naphtha, diesel, fuel oil and vacuum gasoil. 

Meanwhile, China may resume fuel exports in May after state oil firms applied for permits to ship gasoline, diesel and jet fuel, the Financial Times reported, citing traders.

Reporting Credits

(Reporting by Siddharth Cavale in New York, Robert Harvey in London, Anmol Choubey in Bengaluru and Trixie Yap in Singapore; Editing by Louise Heavens, Joe Bavier, Ros Russell, Edmund Klamann and Deepa Babington)

Key Takeaways

  • Stalled U.S.–Iran negotiations have left the Strait of Hormuz effectively closed again, causing sustained disruptions in global oil flows; Brent and WTI extended recent gains. (apnews.com)
  • The passage normally handles around 20 million barrels per day—about one‑fifth of global petroleum liquids consumption—making its blockade a major supply shock. (lemonde.fr)
  • Even if shipping resumes soon, analysts warn that restoring full capacity will take months due to production outages, insurance limitations, infrastructure damage, and logistical constraints. (axios.com)

References

Frequently Asked Questions

Why are oil prices rising currently?
Oil prices are rising due to the ongoing US-Iran conflict, which has stalled negotiations and resulted in the closure of the key Strait of Hormuz, restricting global energy supplies.
What is the impact of the Strait of Hormuz closure?
The closure of the Strait of Hormuz, which usually carries around 20% of global oil and gas consumption, has created significant supply disruptions and driven up prices.
How has the US-Iran war affected crude oil shipments?
The conflict has led to a US blockade of Iranian ports and Iran shutting shipping flows, with at least six Iranian oil tankers turning back and major supply routes disrupted.
What are Brent crude and WTI prices trading at?
Brent crude futures climbed to $108.68 a barrel, and US West Texas Intermediate (WTI) rose to $96.96 a barrel as of April 28.
Are any vessels able to transit the Strait of Hormuz?
While most oil tankers have been blocked, a UAE-managed LNG tanker successfully crossed the Strait and was nearing India.

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