Geography Controls the Flow of Oil When Nations are in Conflict

 

Geography Controls the Flow of Oil When Nations are in Conflict

Understanding the Strait of Hormuz and the Suez Canal

Global trade often depends not only on politics or economics, but also on simple geography. A glance at the world map quickly reveals how a few narrow maritime passages control the movement of enormous quantities of goods, especially oil.

Recently, discussions about possible disruptions to shipping routes have drawn attention to two well-known waterways: the Strait of Hormuz and the Suez Canal. At first glance, one might wonder whether ships could simply switch from one route to the other if a disruption occurred. However, a closer look at geography shows that these two waterways serve very different roles in global shipping.

Two Important but Very Different Waterways

The Strait of Hormuz is a narrow natural passage located between Iran and Oman. It connects the Persian Gulf to the Gulf of Oman, which then opens into the wider Arabian Sea.

This strait serves as the only direct maritime gateway between the Persian Gulf and the open ocean. Many of the world’s major oil-producing countries—including Saudi Arabia, Iraq, Iran, Kuwait, and the United Arab Emirates—export much of their oil through this narrow waterway.

The Suez Canal, by contrast, lies thousands of kilometres away in Egypt. It is an artificial sea-level canal running north to south across the Isthmus of Suez. The canal links the Mediterranean Sea with the Red Sea, creating a shortcut between Europe and Asia.

Because of this connection, the Suez Canal allows ships travelling between the North Atlantic and the Indian Ocean to avoid the much longer journey around the southern tip of Africa.

Why the Two Routes Cannot Replace Each Other

Although both waterways are crucial to international shipping, they serve different segments of the global maritime route.

For oil tankers leaving ports inside the Persian Gulf, the first essential step is passing through the Strait of Hormuz. Only after exiting into the Arabian Sea and travelling westward across the Indian Ocean can ships reach the Red Sea, from where they may transit through the Suez Canal toward Europe.

In other words, vessels from the Persian Gulf must pass through the Strait of Hormuz before they can even approach the Suez Canal. The two routes therefore cannot substitute for each other.

The Importance of the Strait of Hormuz

Because it is the only maritime exit from the Persian Gulf, the Strait of Hormuz is considered one of the most strategically important shipping lanes in the world. A significant portion of the world’s seaborne oil exports moves through this narrow passage each day.

If shipping traffic were disrupted in this strait, tankers inside the Persian Gulf could face delays before reaching international waters. Some countries have developed alternative export routes, including pipelines that transport oil to ports along the Red Sea. However, these systems have limited capacity compared with the large volume normally carried by sea.

Longer Routes Around Africa

If ships cannot use either the Strait of Hormuz or the Suez Canal, maritime traffic may need to take a much longer route around the Cape of Good Hope. This journey around the southern end of Africa adds several thousand nautical miles to the voyage and can increase travel time by roughly one to two weeks.

Longer routes mean higher fuel consumption, longer delivery times, and additional logistical challenges for global supply chains.

A Reminder of the Power of Geography

The world’s oceans appear vast and open, yet global trade often depends on a few narrow passages where geography channels maritime traffic. The Strait of Hormuz and the Suez Canal illustrate how these strategic corridors shape the movement of energy and commerce across continents.

Understanding their locations and roles helps explain why disruptions in one region due to war or other causes can influence shipping routes and supply chains far beyond the immediate area.