Brent crude rose about 5% on Monday, touched $90.03 early Tuesday, and by lunchtime in London had given the entire Tuesday move back.

No missile was fired at a tanker on Monday. No refinery in the Gulf was hit. There was no American strike and no Iranian retaliation. The largest single-day move in this benchmark for weeks happened on nothing but words, and the words that reversed it came from a Qatari spokesman at a routine press briefing.

That is worth stating plainly, because it tells you what this market is currently trading. It is not trading the war. It is trading the negotiation about the war.

The Numbers

Brent October settled Monday at $87.72, up 4.99%. WTI September settled at $82.13, up 5.05%. Both benchmarks moved almost identically, and the buying came in the American afternoon: Brent was still near $83.50 and described as little changed at noon Eastern.

Brent then ran to $90.03 in Asian hours on Tuesday and reversed. By about 12:05 GMT it was $87.61, fractionally lower on the day, with WTI at $82.22. That is a spread of $5.39, against $5.59 between Monday's two settles.

Two cautions about our own page, because both matter today.

Our WTI quote is roughly 13 hours old. The vendor flagged its own WTI data as stale, and our system refuses stale quotes rather than displaying them, so it is holding Monday's value. That is the correct behaviour but it means the spread you could calculate from our two figures this morning compares different moments and is meaningless.

And our Brent change field read plus 5.00% this morning when the session change was about minus 0.1%. That number is not fabricated, but it is answering a different question from the one it appears to answer. Our system deliberately derives the change from our own price 24 hours earlier rather than trusting the vendor, after the vendor gave us a wrong-direction change in July. Twenty-four hours before this morning's reading was Monday morning, before the entire rally. So it was a true 24-hour change and a badly misleading daily one. We are looking at labelling it for what it is. Choosing the wrong baseline is the recurring failure in this whole subject, and it is the first entry on our reference page on oil data traps.

What Actually Moved It

Three things, none of them kinetic.

Trump said at the White House on Monday that he will seek payment from Iran for fifty years of damages, and that he has instructed his representatives to make compensation part of any and all future negotiations. He also said the US Navy has 100% control of the Strait of Hormuz, called the blockade infallible and a steel wall, and said the strait is open now for non-Iranian traffic and has been fully mine-swept.

Iran, through Araghchi, repeated that it is only passing messages through intermediaries and will not resume direct talks until its conditions are met.

And Tehran spent the weekend consolidating its hardliners, which we covered on Monday.

Set against a market that spent last week pricing an imminent deal and losing more than 7%, that combination was enough. The premium came back because the deal stopped looking close.

There is a factual problem inside the reparations demand. Trump also demanded Iran compensate the families of the 17 American sailors killed aboard the USS Cole in October 2000. That attack was carried out by al-Qaeda.

Then Qatar Spoke

At a press briefing on Tuesday morning, Qatar's foreign ministry spokesman Majed al-Ansari said the Oman-Iran talks have reached an advanced stage, that Qatar has had positive feedback from both countries, and that Qatar wants the Strait of Hormuz reopened as soon as possible.

Brent gave back more than $2 from its high.

Iran's own spokesman said something compatible the same day: Baghaei described the talks as progressing smoothly and constructively and said a shipping route map has been agreed, with technical issues outstanding.

So the fade is not a mystery. But hold the caveat that has survived every day of this story: Iran continues to say the Oman route does not equal a reopening. The unresolved items are the reopening mechanism itself, maritime service fees and security arrangements. A map is not an open waterway.

The Curve Disagrees With the Flat Price

Here is the part that complicates the story above, and it is the most useful thing in today's data.

While the flat price round-tripped on a diplomacy headline, the shape of the futures curve moved decisively one way. Brent's spread between October and January widened from $4.92 on Monday to about $5.72 on Tuesday, a move of roughly 75 to 80 cents in a single session. The steepening is concentrated right at the front: October to November is $2.14, November to December $1.98, December to January $1.60.

The tell is what happened on the way down. On Tuesday, October fell 8 cents while January fell 65 cents. Even as the price gave back its gain, the prompt contract outperformed everything behind it.

That distinction is worth internalising. A rally driven by sentiment lifts the whole strip more or less in parallel, and gives it back the same way. A market pricing physical scarcity bids the front and leaves the deferred behind, which is exactly what this did.

So the two signals are saying different things, and both are real. The flat price is trading the negotiation. The curve is pricing barrels that cannot get out of the Gulf.

Commerzbank reported Tuesday that satellite imagery shows Kharg Island largely idle this month, which points the same way.

Khamenei Named a War Command on Monday

This got much less attention than it deserves, and it is the most consequential thing in the window.

Supreme Leader Mojtaba Khamenei announced six senior military appointments on Monday through his official website. Ahmad Vahidi becomes commander-in-chief of the Revolutionary Guard. Ali Abdollahi becomes chief of staff of the armed forces. Hossein Taeb, formerly head of Guard intelligence, takes over the Basij.

The one that matters for oil is Rear Admiral Ali Ozmaei, the new commander of the Guard's navy. He previously ran its Fifth Naval Region, which covers the approaches to the Strait of Hormuz. The decree formalises a job he was already doing.

Put that beside Sunday's appointment of Mohsen Rezaei, a former Guard commander-in-chief, to run the Supreme National Security Council. Over two days, Iran has placed a former Guard chief over the body that must approve any deal and confirmed a Hormuz naval commander at the top of the Guard's navy.

Two things this is not. It is not a public appearance: these were decrees published on a website, and Khamenei has still not been seen since he succeeded his father in March. And Rezaei has still said nothing in his new role, which remains the single most informative thing that could happen this week.

Two Ships Were Hit, and Only One Was Anywhere Near Hormuz

A Panama-flagged container ship, the Vela Nova, is believed to have been struck by a missile in the Gulf of Oman about 71 nautical miles off the Pakistani coast on Tuesday. The UK Maritime Trade Operations reported an incident involving a container ship and military forces, having initially described the vessel as a tanker. No casualties have been reported and nobody has claimed it.

Separately, a cargo vessel was struck off Al Mokha in the Bab el-Mandeb, at the other end of the Arabian Peninsula. Here the accounts diverge and we are giving you both. UKMTO describes an unknown projectile. Saudi state media attributes the attack to the Houthis and reports three crew killed, two Pakistani and one Indonesian. The attribution and the death toll come from state media, not from the maritime authority.

Traffic through Hormuz keeps thinning. Kpler counted six crossings on Sunday, against 15 on Friday and 11 on Saturday, versus a pre-war norm near 130 a day.

And Iran has now gone more than 72 hours without answering the United Arab Emirates, which named the Revolutionary Guard outright as the author of Saturday's attack on an ADNOC vessel. That silence was 48 hours old when we wrote about it on Monday. It has not broken.

The Strategic Reserve Went Below 300 Million Barrels

The Department of Energy reported Monday that the Strategic Petroleum Reserve fell 6.1 million barrels to 298.7 million.

That is the first time it has been below 300 million barrels since January 1983. The reserve stood near 415 million in mid-March, before Trump ordered a 172 million barrel release. It now holds about 42% of its authorised capacity.

This is the quiet structural story underneath the daily headlines. Every week the strait stays shut, the buffer that would cushion a genuine supply shock gets smaller, and it is now smaller than at any point in the working lives of most people trading this market.

Libya Is Burning and Nobody Has Claimed It

A drone struck a storage tank at Libya's Zawiya refinery on Monday evening, holding roughly 4.5 million litres of gasoline. The tank caught fire and collapsed, and the fire was still burning at midday Tuesday. It was the third drone strike on the site across Sunday and Monday. Nobody has claimed responsibility.

The refinery runs 120,000 barrels a day. Libya's National Oil Corporation warned on Tuesday that it could declare force majeure and shut Zawiya entirely if the strikes continue.

Read that carefully, because it will be misreported. NOC has not declared force majeure. It said it might. Those are different things, and the difference is the whole supply impact.

What to Watch

The Energy Information Administration publishes its Short-Term Energy Outlook around midday Eastern on Tuesday, after this article goes up. We confirmed it had not landed as of 12:20 GMT by checking the file on the agency's own server, which still carries a July timestamp.

The July edition has Brent averaging $81.91 across 2026 and $64.76 in 2027. Spot is near $88. That July forecast was built on assumptions the collapse of the July 8 truce invalidated, so an upward revision is the obvious expectation and its size is the number to look for. Note that July's edition was itself a huge cut, taking 2026 down from $95 and 2027 from $79.

For a sense of the other tail, Kieran Tompkins at Capital Economics told CNBC on Tuesday that Brent could reach $120 to $140 if the strait stays shut and OECD inventories keep drawing, with a possible tipping point near the start of the fourth quarter. He framed it as a conditional scenario rather than a base case, and it should be read that way.

The American Petroleum Institute's inventory estimate lands Tuesday afternoon, with the official EIA count on Wednesday.

Rezaei's first statement as security council secretary.

A search caution, because a 5% up-day pulls old escalation stories to the top of results. A market report describing a drone strike on Ras Tanura and a fire at Fujairah is dated 3 March. A piece headlined that an oil shock lifted the EIA's price outlook is from 10 March and is not the August outlook. And a story reporting the Revolutionary Guard claiming complete control of the strait is from 4 March.

One price source is worth naming. Fortune published Brent at $92.54 on Tuesday morning. Four independent sources put it between $87.59 and $90.03 at the same time. We have found that publication's oil pages wrong by two to four dollars on three separate days this month, and we are not using them.

This article is for informational purposes only and does not constitute financial or investment advice. Oil market conditions can change rapidly. Consult a qualified financial professional before making investment decisions.