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Oil falls but head for 8% weekly gain on tight supply; US diesel hits record - Finance news and analysis from Global Banking & Finance Review
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Oil falls but head for 8% weekly gain on tight supply; US diesel hits record

Published by Global Banking & Finance Review

Posted on September 11, 2026

4 min read

· Last updated: September 11, 2026

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Oil Prices Dip but Post 8% Weekly Gain as US Diesel Hits Record High

Weekly Oil Market Overview and Key Developments

HOUSTON, Sept 11 (Reuters) - Oil prices fell on Friday but remained on course for a weekly gain of more than 8%, while U.S. diesel prices hit a record high as attacks along Middle East shipping routes stoked concerns about prolonged supply disruptions.

Brent crude futures settled at $104.61 a barrel, down $3.02, or 2.81%. 

U.S. West Texas Intermediate crude finished at $100.05 a barrel, down $2.43, or 2.37%. During the session, both benchmarks hit their highest levels since mid-May. 

Middle East Tensions and Market Reactions

Both reversed early gains after the Financial Times reported that foreign ministers in the Middle East are trying to work out a temporary deal with Iran to manage shipping through the Strait of Hormuz.

On Thursday, Brent and WTI rose more than 6% after an escalation in shipping attacks in the region. 

But on Friday, traders were re-evaluating the risk.

Analyst Perspectives on Volatility

"The things that were causing the panic yesterday are easing today," said Phil Flynn, senior analyst with the Price Futures Group. "The question is will the market remain calm over the weekend? That's when things seem to happen."

The report of talks on the future of Hormuz had the biggest impact on market sentiment.

"Some headlines of possible new talks in the Middle East are weighing moderately on oil prices today," said UBS energy analyst Giovanni Staunovo. "I keep seeing near-term risks to the upside for oil prices, but we should expect ongoing high price volatility too."

Supply Disruptions and Regional Impact

Saudi Arabia and Pipeline Attacks

In a further development for Riyadh, satellite imagery showed smoke on Thursday in the vicinity of Saudi Arabia's East-West Pipeline, vital for the kingdom to divert its crude exports away from Hormuz.

As more reporting said a pumping station on the pipeline had been damaged by Iran-affiliated militants, prices stayed lower.

"It's surprising the oil market remains down in light of reporting that Houthi rebels attacked the East-West Pipeline, which would impact 7 million barrels of crude," said Andrew Lipow, president of Lipow Oil Associates.

"Repairing a pumping station would require a lot more than repairing a break in the pipeline," Lipow said. "Electrical systems would have to be repaired, the pumping system would need to be repaired."

Production and Shipping Challenges

Saudi Arabia's crude supply fell by 2.3 million barrels per day on the month to 6 million bpd in August, the lowest level in more than three decades, the International Energy Agency said on Friday, citing attacks on Saudi energy facilities.

Adding to concerns over regional oil flows, Yemen's Iran-aligned Houthis on Friday reached the island of Perim in the Bab el-Mandeb Strait, four Yemeni government sources told Reuters, potentially tightening their grip on one of the world's vital shipping routes.

Iran said it had attacked 10 ships near the Strait of Hormuz on Wednesday, after the U.S. hit five Iranian oil tankers. Iran's Islamic Revolutionary Guard Corps said it would escalate its response to any further attacks.

Vessel transits at the Strait of Hormuz fell to seven on Thursday from 11 the previous day, preliminary ship-tracking data showed on Friday.

The strait handled about 125 commodity vessels and one-fifth of global daily oil and liquefied natural gas supplies before the Iran war began in late February.

Global Economic Implications

Central Bank Responses

Meanwhile, two European Central Bank policymakers opened the door on Friday to further interest rate increases if a war-fueled rise in energy prices continues and pushes up other prices in the euro zone.

Fuel Prices Surge Amid Disruptions

Record Diesel Prices in the US

SUPPLY DISRUPTIONS LIFT FUEL PRICES

Oil supply disruptions due to the Iran war, along with Ukrainian attacks on Russia's refineries, pushed the U.S. national average diesel price past $6 a gallon for the first time on Thursday, according to price tracker GasBuddy.

Analyst Commentary on Refined Products

"Refined products, particularly diesel, are feeling a one-two punch right now," said Tim Waterer, chief market analyst at KCM Trade.

"As long as both the Gulf shipping constraints and Russian refining outages remain in play, diesel and other refined products are likely to show a higher upside tendency than the broader crude market," he added.

Forecasts and Outlook

Commerzbank raised its year-end Brent crude forecast to $85 a barrel from $75, while increasing its diesel forecast to $1,200 a ton from $950 and its jet fuel forecast to $1,230 a ton from $980.

(Reporting by Erwin Seba in Houston, Sudarshan Varadhan in Singapore, Anushree Mukherjee in Bengaluru and Enes Tunagur in London; editing by Mark Potter, Jason Neely and David Gregorio)

Key Takeaways

  • Brent crude settled at about $104.6/barrel and WTI at about $100.1/barrel, both still up over 8% on the week despite Friday’s pullback. (au.investing.com)
  • U.S. diesel prices hit an all-time high, topping $6.00 per gallon, driven by constrained global refined supplies amid Iran conflict and shipping risks. (apnews.com)
  • Vessel traffic through the Strait of Hormuz plunged to seven on September 10, well below the 10-day average of 15, underscoring persistent supply-route stress. (bairdmaritime.com)

References

Frequently Asked Questions

Why did oil prices initially rise this week?
Oil prices rose due to attacks on Middle East shipping routes, sparking concerns about prolonged supply disruptions.
What caused the drop in oil prices on Friday?
Oil prices fell after reports suggested Middle East ministers are working with Iran to manage Hormuz shipping, calming some market fears.
How did supply disruptions impact US diesel prices?
Disruptions from the Iran war and Ukrainian attacks on Russian refineries pushed US diesel prices to a record high above $6 per gallon.
How has Saudi Arabia's crude supply been affected?
Saudi crude supply fell by 2.3 million barrels per day in August to its lowest level in over three decades due to attacks on facilities.
What is the significance of the Strait of Hormuz in oil markets?
The Strait of Hormuz is a vital shipping route that handles a fifth of the world's daily oil and gas shipments; disruptions here impact global prices.

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