Brent Crude at $105 and Rising: Why Markets Think Trump's Plan Won't Work

Brent crude hit $105 per barrel on March 31 as traders weighed Iran's partial diplomatic concessions against the military realities. Here is what the price tells us that official statements won't.

Oil markets are not sentimental. They do not factor in the geopolitical intentions of world leaders, the sincerity of diplomatic gestures, or the emotional resonance of presidential announcements. They factor in physical supply, physical demand, storage capacity, and the probability distribution of future outcomes. When Brent crude — the global oil price benchmark — is trading at $105 per barrel and still rising on March 31 despite Trump's announcement that Iran has agreed to 'most' of his demands, the markets are saying something that official diplomatic communications are not.

What traders are pricing is a probability distribution across multiple scenarios. The optimistic scenario — rapid Hormuz reopening, swift oil supply normalisation, price reversal — would put Brent back toward $75-80 per barrel within six to eight weeks. This scenario is not zero probability. It is what Trump's communications and the Iran '15-point acceptance' story suggest should happen. If markets believed it, they would be pricing toward $80, not $105.

The market is actually pricing for a base case somewhere between $95 and $115, suggesting a scenario in which partial diplomatic progress produces partial supply restoration but significant uncertainty persists for months. The specific risk factors keeping prices elevated include: Iran's internal political complexity making any agreement difficult to implement consistently; Trump's Kharg Island musing, which if acted upon would be dramatically escalatory; the Houthi dimension continuing independently of any Iran-US agreement; and the structural LNG supply gap that cannot be quickly closed even if Hormuz fully reopens.

For European central banks, the $105 price is a specific input into inflation projection models that has already pushed estimated eurozone Q2 inflation above 3 percent. The ECB's April 17 meeting is now being discussed by analysts as potentially involving a rate increase rather than a cut — a complete reversal of the monetary policy trajectory that existed before February 28.

The European Commission has published guidance asking member states to begin gas storage refilling immediately and to consider demand reduction programmes. The guidance is technically sound and diplomatically polite. The gap between guidance and the ability of individual households to reduce their heating bills is the gap that politics will eventually have to bridge.