Skip to content
You can now search across every topic, entity and event.What's new
Iran Conflict 2026
21SEP

Brent slips to $94.71 the day Hormuz is declared shut

4 min read
15:34UTC

Brent eased about 1.7 per cent to $94.71 on 11 June, with WTI near $91.84, pulling back from the prior day's peak even as the IRGC declared the Strait of Hormuz closed.

ConflictDeveloping
Key takeaway

Oil fell the day Hormuz was declared shut, the market betting the closure is words, not a sealed strait.

Brent Crude eased about 1.7 per cent to $94.71 on 11 June, with WTI near $91.84, on the very day the IRGC declared Hormuz closed to all traffic. The move was a pullback from the $96.34 peak Brent reached on 10 June , and it came after CENTCOM said its strikes were complete. A closure announcement that sends oil down, rather than up, is the market reading the words and discounting them.

A strait genuinely sealed, with enforcement that held, does not let crude fall. Traders priced the IRGC order as rhetoric, weighing it against CENTCOM's denial that transit had stopped and against the absence of any independently verified incident. The "strikes complete" line did the rest, removing the immediate threat of further escalation that had driven the prior day's spike.

Futures and insurance now point opposite ways. The futures market is betting the closure is a declaration that will lapse, while marine insurers are repricing the legal risk of a war-risk zone that exists on paper whether or not a ship is ever stopped. The gap between the two prices is the gap between what the IRGC said and what anyone can confirm it did.

Deep Analysis

In plain English

The price of oil dropped slightly on the day Iran's military declared the Strait of Hormuz closed. That sounds backwards. Usually, closing a major oil route would send prices up, because less supply reaching markets means higher costs. Traders weighted CENTCOM's 'strikes complete' statement over the IRGC's Telegram post, driving Brent down 1.7 per cent to $94.71 rather than up. The US military said ships were still sailing through normally, and Iran's military has threatened to close the strait before without following through. So oil markets took the closure announcement as words on a screen, not an actual blockage. However, shipping insurance companies, which move more slowly and need official government sign-offs to change their assessments, did not drop their risk premiums. This means the cost of actually insuring a cargo ship through the strait stayed high even as the headline oil price fell.

What could happen next?
  • Risk

    If Windward or Kpler record transit volumes falling below three vessels in a 24-hour window, futures markets will reprice immediately and the Brent discount will reverse sharply, likely to above $100.

    Immediate · Assessed
  • Consequence

    Lloyd's of London's continued war-risk listing of Hormuz means every cargo transiting the strait now carries an elevated insurance cost regardless of futures pricing, increasing the effective landed cost of Gulf oil for European refiners.

    Short term · Reported
  • Meaning

    Markets pricing CENTCOM's 'strikes complete' statement as a de-escalation signal over the IRGC's closure declaration shows that traders have shifted their primary price signal from Iranian statements to US operational announcements.

    Immediate · Assessed
First Reported In

Update #124 · IRGC declares Hormuz shut; US strikes again

Gulf News / NBC News / Business Standard· 11 Jun 2026
Read original
Different Perspectives
Shipping and insurance industry
Shipping and insurance industry
UKMTO counted about 20 US-facilitated Hormuz transits a day to 11 September against only 6 visible on AIS, with traffic still around 90% below the 138-a-day pre-war baseline. War-risk underwriters cannot price hulls they cannot see, or resolve whether the tanker El Gaia hit a mine, as Iran claims, or a missile and drone, as CENTCOM says.
European refiners
European refiners
European refiners, including Poland's Orlen, absorbed a roughly $26 gap between Dated Brent at $130.80 on 15 September and ICE Brent futures settling at $103.87 on 18 September, a spread that widened from $13.45 on 9 September rather than newly opening. Their futures hedges no longer cover what they now pay for physical barrels.
Saudi Arabia
Saudi Arabia
Saudi Aramco zeroed European term customers' October allocations and rerouted roughly 60 million barrels to Asia through Ras Tanura and Sohar, using Red Sea and Gulf terminal capacity built years ago to cut Hormuz exposure. Riyadh reallocated existing supply rather than negotiating a shortfall with Europe.
Qatar
Qatar
Qatar's energy minister Saad al-Kaabi told Bloomberg at the Qatar Economic Forum on 20 September that Bessent's two-year Hormuz-obsolescence forecast is wrong, and that Doha has deliberately built no bypass pipeline. Qatar's gas exports run through one waterway by choice, not oversight.
Iran (foreign ministry and Majlis)
Iran (foreign ministry and Majlis)
Iran's foreign ministry and 130 Majlis deputies moved toward NPT withdrawal this week, with lawmaker Hossein-Ali Haji Deligani filing a triple-urgency bill on 20 September that Speaker Qalibaf has not yet scheduled. Tehran treats treaty membership as leverage still on the table, not yet spent.
Russia and China
Russia and China
Moscow and Beijing vetoed the Panel of Experts' renewal, maintaining Resolution 2231 lapsed in October 2025 and the 2025 snapback was never validly triggered, so the sanctions architecture the Panel enforces has no current legal standing. Both governments frame the veto as upholding law, not shielding Tehran.