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Oil prices rise to five-week high on US-Iran attacks, Houthi blockade threat - Finance news and analysis from Global Banking & Finance Review
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Oil prices rise to five-week high on US-Iran attacks, Houthi blockade threat

Published by Global Banking & Finance Review

Posted on July 21, 2026

3 min read

· Last updated: July 21, 2026

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Oil prices rise to five-week high on US-Iran attacks, Houthi blockade threat

Middle East Tensions Drive Oil Price Surge

By Scott DiSavino

Oil Price Movements and Market Reaction

NEW YORK, July 21 (Reuters) - Oil prices climbed about 2% on Tuesday to a five-week high, on worries that energy supply disruptions could worsen in the Middle East due to more attacks between the U.S. and Iran and a threatened naval blockade of Saudi Arabia by Yemen's Houthis.

Brent futures rose $1.79, or 2.0%, to settle at $91.01 a barrel, while U.S. West Texas Intermediate crude gained $1.68, or 2.0%, to settle at $84.91.

That was the highest close for Brent since June 10 and for WTI since June 11. It also kept Brent in technically overbought territory for a seventh straight day for the first time since June 2025.

Market Analysis and Expert Commentary

"The rally is not necessarily about lost barrels today, but rather the market assigning a higher probability that logistics remain unstable through the week, especially if Saudi exports to Asia or Red Sea transit face additional disruption," analysts at consulting firm Gelber & Associates said in a note.

Escalating Regional Conflict and Supply Disruptions

Houthi Blockade and Tanker Movements

Two oil tankers carrying Saudi crude to Asia reversed course in the Red Sea on Tuesday after threats from the Iran-aligned Houthis. U.S. forces bombed targets in the south and west of Iran overnight; Tehran targeted U.S. sites in Bahrain, Kuwait and Jordan and at least one tanker was hit in the Strait of Hormuz.

The Houthis announced a naval blockade on Saudi Arabia on Monday, expanding the conflict and raising the threat to global energy supplies and trade beyond the Gulf.

The two tankers, which loaded Saudi crude bound for China and India this week, made U-turns and were headed toward the Suez, shipping data on LSEG showed. However, sources said Saudi Arabia's Red Sea port of Yanbu was operating normally.

Saudi and Russian Oil Export Updates

Crude oil exports from Saudi Arabia fell for a third straight month in May to a record low, data from the Joint Organizations Data Initiative showed on Tuesday.

Caspian Pipeline Consortium Disruptions

As Russia's war with Ukraine expands beyond Ukraine's borders, the Caspian Pipeline Consortium (CPC) has stopped receiving oil from Kazakhstan after suspending loadings on Monday due to attacks on oil tankers at its Black Sea terminal, three industry sources said. 

Russia has accused Ukraine of targeting CPC tankers. Ukraine has not commented on the attacks.

U.S. Oil Inventories and Market Expectations

Upcoming Inventory Reports

U.S. OIL INVENTORIES

The oil market awaited weekly storage reports from the American Petroleum Institute trade group later on Tuesday and the U.S. Energy Information Administration on Wednesday.

Analyst Estimates and Historical Comparisons

Analysts estimated energy firms pulled 0.5 million barrels of crude from storage during the week ended July 17.

If correct, that would be the second week of declines in a row and compares with a decrease of 3.2 million barrels in the same week last year and an average decline of 1.2 million barrels over the past five years (2021 to 2025). [EIA/S] [API/S]

(Reporting by Scott DiSavino in New York, Stephanie Kelly in London, Anushree Mukherjee, Ishaan Arora in Bengaluru and Emily Chow in Singapore;Editing by David Goodman, Emelia Sithole-Matarise, David Gregorio, Rod Nickel)

Key Takeaways

  • Brent crude slipped to about $88.87/barrel and WTI held near $82.47, retreating from multi‑week highs as de‑escalation hopes offset security concerns.
  • Yemen’s Iran‑aligned Houthis declared a naval blockade of Saudi Arabia—threatening up to 7% of global oil supply by closing the Bab el‑Mandeb strait via the Red Sea route.
  • Mediators proposed a 10‑day ceasefire to revive a June 17 interim US‑Iran accord, helping to cap oil’s upside despite ongoing regional strikes.

Frequently Asked Questions

Why did oil prices dip on Tuesday?
Oil prices fell due to mediation efforts between the US and Iran, offsetting concerns about recent strikes and threats of a Saudi naval blockade.
What impact does the Houthi threat have on oil markets?
The Houthi threat of a Saudi naval blockade could disrupt global oil supplies and trade beyond the Gulf, raising market risks.
What are Brent crude and US WTI oil prices currently trading at?
Brent crude futures traded at $88.87 per barrel, while US WTI crude for September delivery was at $82.47 per barrel.
Are there ongoing efforts to de-escalate US-Iran tensions?
Yes, there are reports of mediation proposals and talks aiming for a ceasefire and further diplomatic agreements.
How have US crude oil stockpiles changed recently?
US crude oil stockpiles were expected to have fallen last week, while distillate stocks likely increased.

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