Trump Threats and Hormuz Uncertainty Push ICE Brent to $91
Six months of U.S.-Iran escalation and partial truces have swung crude prices by more than 10% in a session, with Hormuz transit rights still unresolved.
ICE Brent crude front-month was holding at $91.33 per barrel at 05:49 UTC on Tuesday (2026-09-01), near the top of a prolonged geopolitical premium that has repeatedly driven and erased large price moves this year. The most acute surge came on Wednesday (2026-07-29), when oil jumped more than 7% as U.S. President Donald Trump issued fresh threats against Iran while reports emerged of danger to commercial shipping through the Bab el-Mandeb, briefly pushing NYMEX WTI front-month above $84 and ICE Brent crude front-month toward $90.8
The Strait of Hormuz, which carries nearly 20% of global oil supplies according to EconTimes, has been the central variable in every swing. Gregory Brew, geopolitical analyst at the Eurasia Group, identified the sticking point after the U.S. renewed strikes on Iran on Wednesday (2026-07-08): "This skirmishing is really driven by ambiguity in the MOU and around what kind of status Iran is going to have in the Strait of Hormuz." Until that is settled, prices will keep moving on headlines.6,4
The pattern has held across months. When Trump threatened or executed strikes, oil rose. When talks showed progress, prices collapsed. On Tuesday (2026-05-19), Trump postponed planned strikes on Iranian power plants for five days, citing talks he described as very good and productive. Oil dropped 10.5%, analysts said.1
That peace window closed fast. Fresh U.S. strikes on Iranian military targets drove NYMEX WTI front-month to $90.51 and ICE Brent crude front-month to $96.34 in early Asian trading on Thursday (2026-05-28). The whiplash in May was severe: ICE Brent crude front-month had already fallen around 14% during the postponement, then reversed sharply as the strikes resumed.3,2
June brought another cycle. During the week of May 25 (2026-05-25), both benchmarks shed more than 7% as traders positioned for a potential agreement to reopen Hormuz. On June 22 (2026-06-22), Trump widened the conflict's scope, threatening strikes on Iran if Hezbollah continued attacking Israel — a new front that pushed oil higher and raised fresh doubts about the peace talks then underway.3,5
The Wednesday (2026-07-08) escalation confirmed that the interim deal was finished. Trump said it was over. ICE Brent crude front-month rose 5.2% that session to settle at $78.02 a barrel, and NYMEX WTI front-month gained 4.4% to settle at $73.52. Diesel surged as much as 14% the same day after Russia banned diesel exports, amplifying the upward pressure across refined products.6
Tensions flared again three weeks later. On Tuesday (2026-07-28), oil jumped more than 3% and ICE Brent crude front-month approached $87 after the U.S. said it had intercepted Iranian missiles. The following day (2026-07-29), the 7% surge on new threats and Bab el-Mandeb reports extended the rally. NYMEX WTI front-month stood at $86.43 at 05:49 UTC on Tuesday (2026-09-01), while ICE Brent crude front-month held at $91.33.7,8
Inventory data offered some fundamental support to the geopolitical bid. The American Petroleum Institute estimated U.S. crude stockpiles fell by about 3.3 million barrels in the week ended July 24 (2026-07-24), a drawdown indicating physical demand was absorbing available supply even as diplomatic uncertainty dominated price direction.7
The supply picture cuts in both directions. Around 80 million barrels of crude are set to hit the market should Hormuz fully reopen, the Straits Times reported, a volume large enough to swamp near-term refinery intake and push prices sharply lower. Traders who have bought the escalation premium have that number working against them if talks succeed.5
Brew's point on the memorandum of understanding identifies where the stalemate lives. Iran's transit rights through Hormuz under any eventual deal remain undefined, and both sides appear to have reasons to keep pressure on without committing to full resolution. ICE Brent crude front-month settling in the low $90s, below May's $96 highs but well above the mid-$70s trough, suggests traders are not pricing in either outcome as likely. The next move likely comes from Washington.6,3