ICE Brent Retreats to $103 After Hormuz Naval Confrontations Drive Four-Month High
U.S.-Iran naval clashes near the Strait of Hormuz drove ICE Brent front-month to $109.97 in the week ending September 11, leaving the contract at $103.37 by September 19.
ICE Brent front-month crude surged above $108 intraday on Thursday (2026-09-10), closing the session up more than 6% as maritime confrontations between U.S. and Iranian forces near the Strait of Hormuz intensified sharply. The contract touched $109.97 that week, its highest since early May, before moderating to approximately $107.86. Diplomatic contacts between Iran and unnamed counterparts were reported to be ongoing, though no deal was confirmed.7,8
By Saturday (2026-09-19), Brent had retreated to $103.37 on market screens, paring some of the week's gains without a confirmed diplomatic resolution. The pullback is partial. Two chokepoints remain under active pressure.
The escalation took shape in June. Yemen's Houthi rebels announced a complete ban on Israeli shipping through the Red Sea on Monday (2026-06-08), targeting what an oilprice.com report called "the Middle East's largest remaining oil export corridor." Brent climbed toward $94, with early session gains reaching 5% before paring.1
The conflict widened six weeks later. On Wednesday (2026-07-22), a MarineTraffic analyst said the "Bab el-Mandeb risk picture is deteriorating" after Yemen's Houthis threatened a maritime blockade on Saudi Arabia — a potential new front at the strait that is the gateway to the Red Sea.2
The sharpest single-session move came on Thursday (2026-07-23), when Houthi rebels claimed strikes on two Saudi oil tankers in the Red Sea, widening disruption to commercial shipping across both that waterway and the Strait of Hormuz. ICE Brent front-month closed at $100.69, up 7%, having briefly touched $101.01 intraday. WTI closed at $92.19, up 6.2%, its highest finish since June 4. Brent had gained roughly 20% in about two weeks by then, oilprice.com reported, and had climbed about 35% since the start of July, with prices more than 60% above year-opening levels, NBC News reported.3,4,5
About 12% to 15% of global maritime trade worth more than $1 trillion a year transits the Red Sea, NBC News reported. Pressure on both the Bab el-Mandeb and the Strait of Hormuz simultaneously narrowed diversion routes: tankers rerouting around Africa to avoid the Red Sea still face Hormuz risk.5
A diplomatic window opened briefly in late July. Brent edged lower on Thursday (2026-07-30) as investors weighed reported progress in U.S.-Iran-Oman talks. Analysts said a confirmed peace agreement and Hormuz reopening could improve supply expectations and weigh on crude prices. But no agreement emerged, and by the week ending Thursday (2026-09-10), Brent had climbed back to its highest level since May.6,7
Goldman Sachs expected oil to retain most of its recent gains through July and August, supported by lower Middle East production, declining global inventories, seasonal travel demand, and a sharp slowdown in strategic reserve releases. Sustained inventory tightness into autumn would cushion any eventual diplomatic-driven selloff.4
The physical market is sending a more cautious note. Dubai crude has been leaning bearish on storage dynamics, a divergence from front-month Brent's elevated level that suggests spot Gulf supply may be less constrained than paper pricing implies. [CONTRARIAN SIGNALS]
Any confirmed progress on U.S.-Iran talks, or another naval incident near the Strait, would define the next directional leg. At $103.37 going into the weekend close (2026-09-19), the market has no resolution to price in yet.6