Brent Crude, the benchmark that prices roughly two-thirds of internationally traded oil, rose 1.63% to $98.83 a barrel on Tuesday 26 May, reversing part of Monday's slide below $100 1. Deal optimism had stripped a risk premium out of the price; the strike on Iran's naval base put some of it back. A week earlier Brent had touched a conflict high of $112.10 , so the bounce sits well below the war's peak even as it undoes part of Monday's fall .
Lloyd's of London, the specialist insurance market founded in 1688, moved the other way, or rather did not move at all. Its Joint Hull Committee held the Hormuz war-risk designation unchanged, with cover priced at $10-14m a voyage. The split runs on plumbing, not sentiment. Futures traders reprice on a headline within minutes, because a contract settles in cash and carries no obligation to inspect the strait. A war-risk de-listing is bound by reinsurance treaty terms that hard-code the trigger: a UN Security Council resolution or a government certification letter.
A verbal understanding does not clear that bar. So insurers price the absence of signed paper while futures price the presence of talk, and the spread between them is the cleanest live reading of how thin the deal optimism really is. Until an instrument exists, tanker owners keep paying the premium whatever the screen says, and Gulf producers see no relief on the cost of moving their own crude.
The practical effect reaches past the trading desk. Petrol prices stay volatile while Brent ranges either side of $98, and shipping costs that feed into the price of imported goods stay elevated for as long as the war-risk designation holds. The market is trading a deal that, on the insurers' reading, has not yet been written down anywhere.
