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Iran Conflict 2026
26MAY

Brent breaks $100 as insurers hold

4 min read
08:44UTC

Brent crude fell 5% below $100 on Monday on ceasefire hopes, but Lloyd's left its Hormuz war-risk designation untouched. Cheaper oil on the screens; unchanged cost to move a tanker.

ConflictDeveloping
Key takeaway

Falling oil reflects deal-hope; flat insurance reflects deal-doubt, and insurance pays out when ships burn.

Brent Crude fell roughly 5% on Monday 25 May to about $98.96, dipping to $98.12 intraday, its first sub-$100 print since early May and a fall of some $13 from the $112.10 conflict high reached on 19 May 1. West Texas Intermediate (WTI), the US benchmark, slid toward $92 in the same session. Oil traders read the day as a ceasefire drawing near.

The insurance market read it the other way. Lloyd's of London, the centuries-old London marine market that sets war-risk cover for shipping, left its Strait of Hormuz designation in place, with premiums stuck at $10-14m a voyage. A fall in crude that holds would, in time, ease pump and freight costs the war pushed up. Nothing in the cargo lanes has changed yet, and the cost of moving a tanker through the strait has not moved with the screens.

The two markets diverge because they answer different questions. Oil futures clear daily on sentiment, and Goldman Sachs and Morgan Stanley flagged the structural insurance premium beneath this split in mid-May . War-risk underwriters price the probability of a hull loss, not the probability of a press release, so the Lloyd's Joint War Committee will not relist Hormuz on a verbal understanding. At $99, Brent sits about $7 below the International Energy Agency (IEA) $106 Hormuz-closure baseline, the level the agency models for a shut strait, implying the futures market has now priced a substantial chance the strait reopens soon.

Traders should treat the move with some caution. A 5% drop on a thin US holiday session, the biggest single-day fall since the post-ceasefire relief on 22 April , can be ordinary profit-taking as much as a verdict on the talks. One session reads as the weaker signal next to the Brent-Lloyd's split, which is the durable one, because insurance is the market that pays out when ships burn, and it has not flinched.

Deep Analysis

In plain English

Oil prices fell below $100 a barrel on Monday for the first time in weeks. Markets were pricing in optimism that a deal might end the war in the Persian Gulf and reopen the Strait of Hormuz, the narrow passage through which about 20% of the world's oil travels. But Lloyd's of London, which insures the ships that carry that oil, kept its war-risk rates unchanged at $10-14 million per voyage. Insurance markets move more slowly than financial markets, because insurers face real losses if they get it wrong. The gap between the two tells you something: traders are betting on a deal, but the people who actually have to pay out if a tanker is hit are not yet convinced.

Deep Analysis
Root Causes

Lloyd's war-risk designation at Hormuz depends on the Joint War Committee's (JWC) listed-area classification, which requires a formal resolution before removal. The JWC's protocol requires either a UN Security Council resolution certifying the end of hostilities, or a bilateral government certification letter, before an area can be de-listed.

UNSC Resolution 2817 condemned but did not certify anything; no bilateral letter from the US or Iran has been deposited with Lloyd's. Until one of those instruments lands, syndicates cannot underwrite at standard rates without breaching their reinsurance treaty terms.

The futures market, by contrast, trades probability. Brent's 5% fall represents the market pricing roughly a 35-45% probability of a near-term deal, per Goldman's 25 May note, not a resolved outcome. The two markets answer different questions, which is why they can diverge by $13 simultaneously.

Escalation

Directionally de-escalatory on futures markets, but structurally unchanged on physical shipping. The Lloyd's hold is the more reliable indicator of near-term kinetic risk.

What could happen next?
  • Risk

    If deal talks break down after Brent has already priced a 35-45% deal probability, a sharp reversal toward $112 or beyond is the immediate market consequence.

    Immediate · Assessed
  • Consequence

    Lloyd's war-risk designation will remain in force until a signed, deposited instrument reaches the Joint War Committee, regardless of what verbal agreements are announced.

    Short term · Assessed
  • Opportunity

    Asian refiners holding spot-market capacity could lock in sub-$100 Brent cargoes at today's price on a 30-day delivery basis if they judge deal probability above 50%.

    Immediate · Suggested
First Reported In

Update #107 · Two markets, two prices on one Iran deal

Fortune· 25 May 2026
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Different Perspectives
Global shipping and insurance markets
Global shipping and insurance markets
Lloyd's Joint Hull Committee held Hormuz war-risk at $10-14 million per voyage on 26 May, requiring a signed government instrument or UNSC resolution before acting. Futures traders repriced Brent 1.63% on the Bandar Abbas strike; insurers did not move because no qualifying document has been produced in 87 days.
Pakistan
Pakistan
Pakistan's army-chief channel relayed the draft MOU to Tehran and backs Iran's framing that the ball is in Washington's court. Islamabad's general-officer corps now holds structural authority over the deal's critical text, having extracted the only substantive nuclear-monitoring concession of the war; legitimising this channel is itself a strategic choice Washington has not publicly affirmed.
China
China
Chinese DPI hardware arrived in Iran for a tiered censorship system, while China's NFRA ordered state banks to halt new lending to five sanctioned refiners after GL V expired. Beijing is simultaneously exporting surveillance infrastructure to Tehran and adjusting sanctions exposure to US pressure.
Saudi Arabia
Saudi Arabia
Riyadh signed the IMO letter rejecting Iran's Hormuz toll system and requested Trump stand down the 19 May strike alongside the Qatari Emir and UAE President. Saudi Aramco has already warned that Hormuz normalcy is delayed to 2027; at $87 per barrel as Riyadh's budget breakeven, every month of war-risk insurance premium erodes the fiscal cushion the crown prince requires.
Qatar
Qatar
Doha hosted Iranian negotiators, holds $12 billion in frozen Iranian assets Tehran has named as a Hormuz precondition, and signed the five-Gulf-state IMO letter rejecting Iran's PGSA transit route on the same week. Qatar cannot release the assets without a Washington order and cannot credibly claim neutrality after the IMO signature; it is covering both outcomes rather than bridging them.
Israel
Israel
Prime Minister Netanyahu called Trump on 24 May to object that the Lebanon war-end clause inside the draft MOU would force Israel to wind down its campaign against Hezbollah. His objection gives Jerusalem an effective veto over text Washington and Tehran had otherwise largely settled, without Israel being a party to the deal.