Key Takeaways
- President Trump issued an 8 p.m. ET Tuesday ultimatum demanding Iran reopen the Strait of Hormuz or face military action
- Oil markets showed minimal reaction, with Brent crude declining 0.3% and WTI rising just marginally
- The president warned of strikes on Iranian infrastructure including bridges and electrical facilities within hours
- Tehran responded with threats to target Persian Gulf energy assets if attacked
- Trader skepticism may stem from Trump’s history of extending similar deadlines multiple times
Crude oil markets displayed remarkable composure Tuesday despite President Donald Trump’s ultimatum to Iran regarding the Strait of Hormuz reopening. The standoff, now stretching into its sixth week, has already triggered significant disruptions to worldwide petroleum supplies.
The president established an 8 p.m. Eastern Time Tuesday threshold for Tehran to accept terms. He declared American forces capable of obliterating “every bridge in Iran by 12 o’clock tomorrow night” should the nation refuse. Electrical generation facilities would be “burning, exploding and never to be used again,” Trump warned.
Yet these aggressive statements failed to spark dramatic oil prices movements. Brent crude contracts dropped 0.3% to approximately $109.40 per barrel. West Texas Intermediate climbed a modest 0.2% to $112.59. Both primary benchmarks remained essentially unchanged from Monday’s session.
July delivery Brent crude contracts briefly dipped under $100 per barrel. WTI contracts for July settled at $90.43, representing a decline from the previous week’s levels.

Market composure may reflect Trump’s pattern of repeatedly postponing such ultimatums. Energy traders appear skeptical he’ll execute threatened actions this time around.
AJ Bell’s Dan Coatsworth outlined several potential scenarios. Either Washington or Tehran could retreat, potentially triggering equity market rallies and petroleum price declines. Alternatively, dramatic escalation could generate widespread financial market consequences.
Coatsworth identified a third scenario—another deadline extension, perpetuating market uncertainty.
Tehran’s Counter-Strike Warning on Regional Energy Assets
Iran has pledged retaliatory strikes against Persian Gulf energy infrastructure following any American attacks. Such countermeasures could intensify global fuel supply constraints and amplify economic pressures worldwide.
Negotiators reportedly hold pessimistic views about Iran meeting Trump’s conditions, per Wall Street Journal sources. The Strait of Hormuz represents a critical artery for international petroleum transport.
Societe Generale analysts outlined two primary pathways forward. One involves a tenuous ceasefire without ground combat and gradual supply normalization. The alternative features prolonged conflict with deployed forces and permanently elevated energy market volatility.
Supply Tightening Indicators Already Emerging
Evidence suggests traders are already factoring in constrained immediate-term availability. WTI’s prompt spread—the differential between its two closest futures contracts—reached nearly $15.50 per barrel Monday, approaching record territory.
This movement accompanied international buyers’ scramble for American petroleum. Domestic supply projections have contracted as the confrontation continues.
Trump indicated Monday that Iranian negotiations were “going well,” while emphasizing repercussions should his deadline pass without agreement.


