Oil slips again as US, Iran sign peace deal - Finance news and analysis from Global Banking & Finance Review
Finance

Oil slips again as US, Iran sign peace deal

Published by Global Banking & Finance Review

Posted on June 18, 2026

2 min read

· Last updated: June 18, 2026

Add as preferred source on Google

Oil Prices Slide as US-Iran Peace Deal Reopens Strait and Lifts Sanctions

By Colleen Howe

Market Reactions and Economic Implications of the US-Iran Agreement

BEIJING, June 18 (Reuters) - Oil prices fell in early trading on Thursday after the U.S. and Iran signed an interim agreement that would end the Iran war, reopen the Strait of Hormuz and waive U.S. sanctions on Tehran's oil, resolving the largest energy supply disruption in history.

Oil Price Movements

Brent crude futures were down 89 cents, or 1.12%, at $78.66 a barrel as of 0005 GMT, and U.S. West Texas Intermediate fell 98 cents, or 1.28%, to $75.81 a barrel.

The benchmarks resumed their decline, reversing gains made on Wednesday after U.S. President Donald Trump said he could resume his bombing campaign if Iran's leaders "don't behave".

Market Analyst Insights

"The sell-off extended as energy markets continued to aggressively price in a faster-than-expected return of Iranian barrels following the recent U.S.-Iran memorandum of understanding," IG market analyst Tony Sycamore said in a note.

Details of the US-Iran Memorandum

The 14-point memorandum begins a 60-day negotiation period during which Iran will allow toll-free passage through the Strait of Hormuz, a key oil and gas shipping lane. The deal calls for traffic through the strait to be restored to its full capacity within 30 days.

Key Provisions and Challenges

The preliminary accord defers many of the more difficult issues such as Iran's nuclear program, and also requires the U.S. and its partners to come up with a $300 billion plan to finance Iran's recovery.

Potential Market Impact

If the agreement is successfully implemented and the strait reopened, this year's supply crisis could turn into a significant supply glut in 2027, the IEA cautioned on Wednesday, forecasting in its monthly market report that supply will outstrip demand by 5.05 million barrels per day next year as Middle East oil returns to the market.

Broader Economic Factors

The U.S. Federal Reserve is also increasingly weighing whether it will need to raise interest rates later this year to rein in inflation, which could slow economic growth and suppress oil demand.

Federal Reserve Outlook

Nine of 19 Fed policymakers now think a rate hike will be needed, Wednesday projections showed, a departure from three months ago when none of them held that view.

(Reporting by Colleen Howe)

Key Takeaways

  • The interim U.S.–Iran memorandum of understanding ends their war, waives oil sanctions temporarily, and opens the Strait of Hormuz, prompting a sharp drop in global crude benchmarks. (axios.com)
  • Brent crude declined by $0.89 (1.12%) to $78.66/bbl and WTI by $0.98 (1.28%) to $75.81/bbl, as markets priced in a swift return of Iranian supply. (investing.com)
  • The deal launches a 60‑day negotiation period to resolve issues like Iran’s nuclear program and envisions a $300 billion reconstruction fund; the IEA warned this could tilt the 2027 market from deficit to a surplus of over 5 million bpd. (investing.com)
  • Simultaneously, the Federal Reserve held rates steady at 3.50–3.75% but projected that roughly half of FOMC members now foresee at least one rate hike later this year, signaling rising inflation risks. (axios.com)

References

Frequently Asked Questions

Why did oil prices fall after the US-Iran peace deal?
Oil prices dropped because the agreement allows Iranian oil back to the market, easing supply disruptions and potentially creating a surplus.
What does the US-Iran deal include regarding the Strait of Hormuz?
The deal restores toll-free passage through the Strait of Hormuz, with full capacity expected within 30 days.
How could the peace deal affect global oil supply in 2027?
If the deal is fully implemented, the supply crisis could turn into a surplus, with supply outpacing demand by over 5 million barrels per day.
What are the economic risks highlighted by the US Federal Reserve?
The Federal Reserve is considering raising interest rates to control inflation, which could slow global economic growth and reduce oil demand.
What financial requirement does the deal place on the US and partners?
The preliminary accord requires a $300 billion plan to finance Iran's post-war recovery.

Tags

Related Articles

More from Finance

Explore more articles in the Finance category