Three physical constraints that govern oil prices


Oil prices are notoriously difficult to predict. The market has a long history of scorning anyone who speaks with too much confidence. There are more complex variables involved.

At the end of 2025, the prevailing story was that there was excess oil reserves for 2026. Most major banks and forecasting agencies expected global supply to exceed demand by several million barrels per day. Some forecasters – including JPMorgan Chase – predict Brent crude oil reaching the $60 range by mid-2026.

How quickly things change.

After more than a week of conflict in the Middle East and an active shutdown of commercial transport through the Strait of Hormuz, West Texas Intermediate crude rose above $110 a barrel as traders weighed in on rising geopolitical risk. This is the highest level since the price shock after the Russian invasion of Ukraine in 2022. But this move may only represent the early stages of a potential energy shock if tensions escalate.

While this rate remains well below record levels in 2008, the dynamics today are different. Instead of debating whether a disruption is coming, markets are reacting to one that has already emerged.

The question most readers are asking right now is simple: How high can oil prices go?

The honest answer is that no one knows for sure. But we can assess the possibilities by looking at three physical constraints that ultimately govern oil markets: excess capacity, demand elasticity, and limited policy intervention.

The first hurdle is the global supply buffer.

By the end of 2025, the world had an effective excess production capacity of 3 to 4 million barrels per day, held almost entirely by Saudi Arabia and the United Arab Emirates.

Under normal circumstances, this cushion helps stabilize prices during temporary disruptions.

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But the size of the Strait of Hormuz puts this buffer in perspective. About 20 million barrels a day—almost one-fifth of the world’s oil—pass through these narrow waterways.

Even if every barrel of spare capacity were brought online immediately, it would be only a fraction of the volume at risk.

In other words, the extra capacity can help smooth out minor bottlenecks. It cannot fully compensate for the systemic volatility that affects such a large part of global supply.

Sometimes when people ask me how high oil prices can go, I ask another question: How expensive will gasoline be before you start driving less?

Oil prices

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