Brent crude oil prices surged 14% this week as escalating US-Iran tensions disrupted key supply routes. A prediction market now gives an 11.5% probability that oil will hit a new all-time high by December 31.
Why prices spiked
The jump came after a series of confrontations between the US and Iran in the Strait of Hormuz, a narrow waterway that carries about a fifth of the world's oil. Iran's Revolutionary Guard seized a tanker, and the US responded by deploying additional naval assets. Traders scrambled to price in the risk of a prolonged closure or a broader conflict. The 14% weekly gain in Brent pushed the benchmark above $90 a barrel for the first time in months.
Supply routes from the Middle East are the most vulnerable. Any disruption there ripples through global markets almost instantly. This time, the fear is that Iran could mine the strait or launch missile strikes on Saudi and UAE ports. No one knows how long the standoff will last, but the market is betting it won't end soon.
What the prediction market says
One prediction market platform puts the odds of Brent crude reaching a new all-time high by December 31 at 11.5%. That's roughly a one-in-nine chance. The current all-time high for Brent is $147.50, set in July 2008. To get there, prices would need to nearly double from today's levels. The 11.5% probability suggests traders see a real, if still unlikely, path to that milestone — likely through a full-blown supply crisis or a simultaneous shock elsewhere.
Prediction markets aggregate bets from thousands of participants, so the number reflects collective judgment rather than a single analyst's forecast. It's not a prediction, but a price. The 11.5% figure has risen sharply in the past week, tracking the escalation in the Gulf.
The immediate question is whether the US and Iran can de-escalate. Diplomatic channels remain open, but both sides have shown little willingness to back down. The next few weeks will be critical. If tensions ease, oil could give back some of its gains. If they flare up, the 11.5% probability could look conservative. The prediction market's December 31 deadline means traders will be watching every move in the Gulf — and every headline out of Washington and Tehran.
