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Oil rises on reports US will extend Iran blockade, prolonging Mideast supply disruptions

Published by Global Banking & Finance Review

Posted on April 29, 2026

3 min read

· Last updated: April 29, 2026

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Oil prices settle at multi-week highs as global supply worries mount

Global Oil Market Dynamics and Supply Concerns

By Shariq Khan

NEW YORK/LONDON, April 29 (Reuters) - Oil prices surged over 6% on Wednesday to settle at their highest in weeks, as deadlocked U.S.-Iran negotiations made investors more concerned about prolonged disruptions to Middle Eastern supply.

U.S. government data showed a bigger weekly draw in crude and fuel inventories than expected, which also put upward pressure on oil prices.

Recent Oil Price Movements

Brent crude futures for June rose for the eighth consecutive session and settled up $6.77, or 6.1%, at $118.03 a barrel, the highest since March 31. The global benchmark climbed further in post-settlement trade to hit $120 a barrel for the first time since June 2022.

U.S. West Texas Intermediate futures for June rose $6.95, or 7%, to $106.88 a barrel, the highest since April 7.

Impact of U.S.-Iran Tensions

A White House official said that President Donald Trump had asked U.S. oil companies about ways to mitigate the impact of a potentially months-long U.S. blockade of Iranian ports, adding to concerns that disruptions to Middle Eastern oil supply could be prolonged.

Over $50 billion worth of crude oil supply had been lost since the start of the Iran war, according to Reuters calculations as of mid-April.

"If Trump is prepared to extend the blockade, supply disruptions would worsen further and continue to push oil prices higher," Haitong Futures analyst Yang An said.

Peak Demand Season and Supply Constraints

Inventory Drawdowns and Seasonal Demand

PEAK DEMAND SEASON ADDS TO SUPPLY CONCERNS

Signs of tightening supply have started to show in the U.S. Energy Information Administration data showed U.S. crude stocks fell over 6 million barrels last week, versus analysts' estimate of just over 200,000 barrels. [EIA/S]

U.S. stockpiles of gasoline and distillate fuels, made up primarily of diesel, also fell more than expected last week, raising concerns of potential shortages in the top fuel-consuming nation just as peak summer driving season gets underway.

"Prices will likely find renewed support as summer approaches and incremental product demand converges with supply constraints," RBC Capital Markets analysts wrote on Wednesday.

Global Supply Chain Disruptions

Elsewhere, Abu Dhabi National Oil Company has notified some customers they could load two crude grades outside of the Gulf next month because the Strait of Hormuz remains closed, according to two people with knowledge of the matter and a notice seen by Reuters.

OPEC Developments and Market Impact

UAE's Departure from OPEC

INVESTORS ASSESS UAE LEAVING OPEC

Investors were also assessing ramifications of the United Arab Emirates' decision to quit OPEC.

Short-Term and Long-Term Market Effects

Analysts do not expect any major near-term impact on the market. Over the near term, Middle Eastern producers will bring whatever they can to market, Investec head of commodities Callum Macpherson said.

Still, the UAE's exit is the most significant fracture in OPEC's history and it increases the risk of oversupply that could cause oil prices to decline from 2027, Wood Mackenzie said.

"UAE's departure from OPEC will have minimal impact on market fundamentals in 2026, even if the Strait of Hormuz reopens," said Simon Flowers, chief analyst at Wood Mackenzie.

"Beyond this year, losing the UAE will compound OPEC's challenge to balance the market and increase the risk of oversupply weakening prices," Flowers said.

(Reporting by Shariq Khan in New York, Stephanie Kelly in London, Sam Li in Beijing and Siyi Liu in Singapore; Editing by David Goodman, David Gregorio and Chris Reese)

Key Takeaways

  • U.S. blockading Iranian ports will deepen supply outages and sustain upward pressure on oil prices, fanning fears of prolonged disruption in global energy markets (axios.com).
  • The Strait of Hormuz remains effectively closed amid military escalation, creating the largest oil supply shock on record and prompting forecasts for much higher commodity prices (worldbank.org).
  • Even though Iran may have temporary buffer capacity in storage and tankers, analysts warn that without resolution, production shut‑ins will rise, worsening the crisis (axios.com)

References

Frequently Asked Questions

Why are oil prices rising currently?
Oil prices are climbing due to reports that the US will extend its blockade of Iranian ports, leading to prolonged supply disruptions from the Middle East.
How does the Iran blockade affect global oil supply?
The blockade reduces Iran's export capacity and limits shipping through the Strait of Hormuz, disrupting the flow of about 20% of global oil and LNG supplies.
What recent changes have occurred in oil inventories?
US crude oil inventories fell by 1.79 million barrels, gasoline inventories dropped by 8.47 million barrels, and distillate inventories decreased by 2.60 million barrels in the last week reported.
What role does the Strait of Hormuz play in the oil market?
The Strait of Hormuz is a key conduit for about 20% of the world's oil and liquefied natural gas supplies, so disruptions have significant global market impacts.
What are the key demands from the US and Iran in the current conflict?
The US is pushing to end Iran's nuclear weapons program, while Iran seeks reparations, sanctions relief, and some control over the Strait of Hormuz.

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