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Oil rises after US threatens indefinite blockade of Iran; set for weekly gains - Finance news and analysis from Global Banking & Finance Review
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Oil rises after US threatens indefinite blockade of Iran; set for weekly gains

Published by Global Banking & Finance Review

Posted on August 14, 2026

3 min read

· Last updated: August 14, 2026

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Oil Prices Surge as US Blockade Threatens Disruption in Middle East Supply

Market Reactions and Geopolitical Developments

By Anushree Mukherjee

Oil Price Movements

Aug 14 (Reuters) - Oil prices rose on Friday and were on track for weekly gains after the United States threatened an indefinite naval blockade of Iran, raising concerns about disruptions to crude supplies from the Middle East.

Brent futures were up $1.43, or 1.64%, to $88.50 a barrel at 0810 GMT, while U.S. West Texas Intermediate crude futures were up $1.56, or 1.92%, to $82.81 a barrel.

Expert Insights on Price Surge

Higher oil prices are a natural result of the latest approach by the U.S., which implies a substantial extension of the trouble in the Middle East with little hope of a near-term resolution, said Bjarne Schieldrop at SEB Research.

US Blockade and Regional Tensions

On Thursday, the U.S. warned it could maintain a naval blockade of Iran indefinitely and ramp up economic pressure on Tehran as ceasefire talks have stalled.

Statements from US Officials

"Watch this space for more announcements coming next week because we are going to apply measures like have never been seen in the history of economic isolation of a country," Treasury Secretary Scott Bessent told Newsmax's "Rob Schmitt Tonight" programme in an interview.

Impact on Strait of Hormuz

"A return to normal flows out of the Strait of Hormuz is now suddenly without any near-term hopes," Schieldrop said.

The latest U.S. threats come as Iran curbs flows through the Strait of Hormuz, which handled about one-fifth of global daily oil and liquefied natural gas supplies before the conflict began in late February.

Shipping traffic in the strait fell below the month's average towards the end of the week, with both countries making competing claims over control of the waterway.

Incidents Affecting Oil Supply

Two vessels from the state-owned Abu Dhabi National Oil Company were attacked transiting the strait on Thursday, UAE state news agency WAM said, an incident the UAE government condemned as an Iranian attack.

Market Outlook and Analyst Commentary

Meanwhile, forecasts from OPEC and the International Energy Agency pointed to weaker demand growth, while U.S. crude inventories posted their largest weekly increase in more than 3-1/2 years.

Analyst Perspectives on Future Prices

"This week’s reports by the IEA and EIA were quite revealing. Storage is holding up much better than feared, which should pull oil prices lower," said Norbert Rucker, head of economics and next generation research at Julius Baer.

(Reporting by Mohi Narayan in New Delhi and Helen Clark in Perth. Editing by Clarence Fernandez and Mark Potter)

Key Takeaways

  • Brent crude up $1.43 (1.64%) to $88.50, WTI up $1.56 (1.92%) to $82.81 as of 08:10 GMT amid blockade fears.
  • U.S. naval blockade and stalled ceasefire talks heighten risks to oil flows through the Strait of Hormuz.
  • Despite supply worries, OPEC/IEA forecast weaker demand and U.S. crude inventories saw a record weekly increase, tempering price surges.

Frequently Asked Questions

Why did oil prices rise this week?
Oil prices rose due to the US threatening an indefinite naval blockade of Iran, raising concerns over crude supply disruptions from the Middle East.
What impact could the US blockade of Iran have on oil supply?
The blockade could restrict oil flows through the Strait of Hormuz, a key route for global oil and LNG shipments, potentially reducing supply worldwide.
How did Brent and WTI crude futures react to the news?
Brent crude futures rose by $1.43 to $88.50 a barrel, while WTI increased by $1.56 to $82.81 a barrel following the US announcement.
What recent incidents have affected oil shipments through the Strait of Hormuz?
Two vessels from Abu Dhabi National Oil Company were attacked while transiting the strait, with the UAE blaming Iran for the incident.

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