At the beginning of the week, I was asked to write something about Iran. When I started looking at what had been happening , I realised that what we were talking about begins with an action by a proxy of Iran back in November 2023. How  that was initially handled with the Biden regime, and how then it was dealt with  deftly by Trump this year,   in turn led to  the need for an attack on Iran's nuclear facility.

Winston Churchill noted in his first volume of his history of the Second World War that it was important to understand that the United States is primarily a naval power. Indeed, the US remains the world dominant naval power. As such, two major strategic concerns remain for the US : the control of the Suez Canal and the Panama Canal .

To the US The idea that another country might block access to either of these must be intolerable. Yet what began happening, beginning on the 19th November 2023, was that , Houthi rebels that controlled a the northern part of a small country in southwestern Arabia, began to act. These Houthi rebels were acting as a proxy for Iran. They were funded by Iran, and armed with Ship-killing rockets, by Iran.

By February 2024, they had attacked 40 ships which had been attempting to sail northwards towards the Suez Canal. By March 2024, 200 ships had been diverted away from the Suez Canal and forced to make the longer and more expensive voyage around the Cape of Good Hope of South Africa. At this point, I think The Economist magazine said that this was the most severe Suez crisis since the 1950s.

The U.S. did respond. On the 18th December 2023, the U.S. had announced an international maritime force to break the Houthi blockade. On the 10th January, the UN National Security Council adopted a resolution demanding a cessation of Houthi attacks on merchant vessels.

As of the 2nd January 2024, the Houthis had already recorded 931 American and British airstrikes against sites in Yemen. Then Trump came to power. To Trump, the idea of the proxy of Iran blockading the Suez Canal could not be tolerated.

From the 15th March 2025, Trump began "Operatation  Rough Rider". This was named for the cavalry commanded by the then-future President Theodore Roosevelt, who charged up San Juan Hill in Cuba during the Spanish-American War of 1898. The U.S. then hit the Houthis with over a thousand airstrikes. So they were bombing at ten times the rate they previously had been. The result of that was that by the 6th March 2025, Trump announced that the Houthis, these proxies of Iran, had capitulated as part of a ceasefire brokered by Oman. This directly led to the main game.

It was obvious that the decision to do the unthinkable, and block the Suez Canal, had come from Iran.
What other unthinkable things was Iran considering?

It is obvious that Trump now believed that the next unthinkable thing that Iran was considering was nuclear weapons. As Iran's other proxies collapsed, Iran's air defence collapsed. In turn, this gave Trump the room to act, and he took it. He launched a bombing raid which severely disabled Iran's nuclear capacity. Some say it completely destroyed it.

Iran retaliated by launching 14 rockets at the American base in Qatar, warning the Americans this was going to happen, and this had no other effect than allowing Iran to announce a glorious victory by themselves over the Americans. Iran had thought the unthinkable and had achieved what was, to them, as a result, an unthinkable reverse.

The ceasefire that has followed has been interpreted by markets as a relief from major risk. Now, the major effect of this on markets has been a dramatic rocketing in the oil price, followed by a fall in the oil price. So I thought I’d look at the fundamentals of the oil price, from running two of my models of the Brent price, using current fundamentals.

Now, the simplest model that I’ve got explains 63% of monthly variation of the Brent oil price. And it’s based on two things. One is the level of stocks in the U.S., which are published every week by the Energy Information Administration .  Those stocks are  down a bit in the most recent months because this is the summer driving season where oil stocks are being drawn down to provide higher demand for gasoline. So that’s a positive thing. And the other thing that I’ve been talking about this year is that I think  we’re going to see a steady fall in the U.S. dollar, and that’s going to generate the beginning of a recovery in commodities prices. So if I also put the U.S. dollar index into this model, it gives me an equilibrium model now of $78.96. And that’s about $US12  higher than the oil price was this morning.

If I strengthen that model by adding the U.S. CPI, because, you know, the cost of production cost of oil raises over time, that increases the power of the model . And that lifts the equilibrium price very considerably to $97 a barrel, which is $30 a barrel higher than it currently is. So I regard that as my medium-term model, and the first one is my short-term model.

What’s really interesting is that the U.S. dollar  has continued to fall.  That puts further upward pressure  on the oil price. So in spite of this crisis having been solved, I think we’re going to see more upward price action on the oil price by the end of the year.

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From Houthi attacks on Suez Canal shipping to Trump’s Operation Rough Rider and Iran’s nuclear facility strikes, explore how these events shape oil prices.
Find out more