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Global Market Insights

Oil Prices Fall 5% After US-Iran Peace Deal, June 16

June 16, 2026
02:31 PM
3 min read

Key Points

Brent crude fell 5% to $82.84 per barrel after US-Iran peace deal announced June 15.

Japan's Nikkei 225 surged 5%, South Korea's Kospi gained 5.2% on market relief.

US petrol prices remain $4.06 per gallon, down from $4.48 peak but 36% above pre-war levels.

Strait of Hormuz reopening will take weeks, not days, due to mine removal and tanker repositioning.

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The US and Iran agreed to a framework peace deal on June 15, sending oil prices tumbling and global stock markets surging. Brent crude fell more than 5% to $82.84 per barrel (£61.70), down from $120 during the conflict. The deal includes reopening the Strait of Hormuz, through which 20% of the world’s oil and liquefied natural gas normally flows. However, analysts warn the Strait will take weeks to fully reopen and fuel prices will not normalize for months.

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Oil Plunges on Peace Deal Announcement

Brent crude fell more than 5% to $82.84 per barrel following the US-Iran framework agreement announced on June 15. The price had peaked at $120 during the 100-day conflict that closed the Strait of Hormuz. Before the war began on February 28, oil traded around $70 per barrel. Oil prices fell and shares jumped as investors welcomed the deal. Vandana Hari from Vanda Insights warned that a lack of detail on the agreement could inject unease and volatility into markets over the coming week.

Global Stock Markets Rally on Relief

Stock markets surged across Asia and Europe on the peace deal news. Japan’s Nikkei 225 closed 5% higher, while South Korea’s Kospi gained 5.2%. Germany’s Dax rose 1.2% and France’s Cac 40 added 0.7%. The FTSE 100 in London slipped 0.4% because energy giants BP and Shell fell on lower oil prices. Analysts said the deal gave investors a reason to dial back geopolitical risk premium that had hung over markets for months.

US Fuel Prices Remain High Despite Oil Drop

US petrol prices averaged $4.06 per gallon on June 16, down from a peak of $4.48 in early May but still well above the $2.98 per gallon on February 28 when the war began. US fuel prices will take months to normalize even after the Strait reopens. Energy prices in the US have risen 7.7% over the past two months and 40% over the past year, according to the Labor Department. Experts say every $10 increase in oil price pushes pump prices up by roughly 7 pence per litre.

Strait Reopening Will Take Weeks, Not Days

President Trump claimed ships were already moving through the Strait of Hormuz, but ship-tracking data shows only two vessels have exited since Sunday. The Strait has been closed to most shipping since February 28, with hundreds of tankers stuck in the gulf due to sea mines and drone strike risks. A return to pre-war shipping levels will take weeks or months as mine removal and repositioning of tankers takes time. Analysts warn that even with safe passage, the backlog of oil and tankers in the wrong locations means supply normalization will be gradual.

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Final Thoughts

Oil fell 5% to $82.84 per barrel after the US-Iran peace deal, but investors should expect a slow recovery. Fuel prices will remain elevated for months despite the Strait of Hormuz reopening, as mine removal and tanker repositioning take time.

FAQs

How much did oil prices fall after the US-Iran deal?

Brent crude dropped over 5% to $82.84 per barrel, declining from $120 during peak conflict tensions.

When will the Strait of Hormuz fully reopen?

Experts estimate weeks to months for full reopening due to mine removal and tanker repositioning requirements.

Will US petrol prices fall quickly?

No. Despite averaging $4.06 per gallon, normalization will take months after the Strait reopens due to supply chain delays.

Disclaimer:

The content shared by Meyka AI PTY LTD is solely for research and informational purposes.  Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.

About Author

Author

Huzaifa Zahoor

Co Founder

Huzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.

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