Maritime Chokepoints: The Critical Bottlenecks of Global Oil Supply

What Are Maritime Chokepoints?

Maritime chokepoints are narrow waterways that serve as critical pathways for global trade, particularly in the transportation of crude oil. The Strait of Hormuz, for instance, is one of the most significant chokepoints, connecting the Persian Gulf to the Arabian Sea and serving as a vital route for about 20% of the world's seaborne crude oil.

These chokepoints are strategically important because they control access to major oil-producing regions such as the Middle East, making them susceptible to disruptions that can have far-reaching economic impacts.

Why Do Chokepoints Matter?

Chokepoints matter because they represent a single point of failure in an otherwise robust global supply chain. Any disruption at these points can lead to significant delays and increased costs, as tankers must either wait in queues or take longer routes.

Moreover, the concentration of oil shipments through these narrow passages makes them vulnerable targets for geopolitical tensions, natural disasters, or military conflicts.

The Impact on Oil Prices

When a chokepoint is disrupted, it can lead to supply chain bottlenecks and delays in oil transportation. This scarcity of available tankers and the increased distance they must travel can cause a spike in oil prices due to reduced supply and higher shipping costs.

Economists use models like the constant-elasticity supply-shock model to predict how these disruptions affect market prices, illustrating the direct link between chokepoint disruptions and price volatility.

Real-World Examples

The 2019 tanker attack on oil tankers in the Strait of Hormuz highlighted the vulnerability of this critical chokepoint. The incident led to a significant increase in oil prices as markets reacted to potential disruptions in global supply.

Another example is the Suez Canal, which has also been a focal point for geopolitical tensions and natural disasters that have caused temporary but substantial disruptions in global shipping.

Frequently asked questions

Try it live

Everything above runs in your browser — open Maritime Chokepoint: Tanker Transit & Price Shock and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.