Why a small island is at the center of the Iran conflict 

If you have seen Kharg Island in the news lately and are not sure what to make of it, you are not alone. It is a small piece of land most Americans had never heard of before this year. But the decisions being made about it right now have real consequences for the price of oil, the stability of global markets, and whether the United States stays in or out of a broader war in the Middle East. 

Here is what you need to know. 

A tiny island doing enormous work 

Kharg Island sits in the Persian Gulf, about 16 miles off the Iranian coast. It is roughly a third the size of Manhattan. What it lacks in size it makes up for in function: the island handles approximately 90 percent of Iran’s crude oil exports, processing around 950 million barrels per year. Subsea pipelines connect it to three major offshore oil fields. Its deep surrounding waters allow supertankers to dock and load directly, which is a geographic advantage few other sites in the region can offer. A declassified CIA assessment from 1984 described the island’s facilities as “the most vital in Iran’s oil system.”  

The island is tightly controlled give its importance. Iran’s Islamic Revolutionary Guard Corps guards it around the clock, and civilian access requires official security clearance, which is why Iranians have long called it the “Forbidden Island.” China is the primary customer for the oil that flows through it, accounting for roughly 11.6 percent of China’s seaborne oil imports so far in 2026. 

Why has the U.S. not hit Kharg’s oil infrastructure? 

The United States has already launched airstrikes on several military assets on Kharg Island but it has yet to strike the oil terminals and storage facilities. Doing so would  cut off the Iranian government’s primary source of revenue, which could be a powerful lever. But the consequences of doing so extend well beyond Tehran. 

Knocking out 90 percent of Iran’s oil export capacity would send global prices sharply higher, affecting consumers and economies far outside the Middle East. It would also sever a major supply line to China, which could draw Beijing more directly into the conflict. Iran has made clear that any strike on its oil infrastructure would trigger retaliation against the energy facilities of any country or company working with the United States. 

The U.S. military has stated that it retains all options regarding the island, including seizure. Reports of 5,000 U.S. Marines and sailors being deployed to the Persian Gulf have fueled speculation about a potential ground operation, though no such order has been made. Iran, meanwhile, has moved additional air defenses onto the island and reportedly laid physical traps, including mines, in anticipation of a possible U.S. attempt to take control. 

This has happened before 

During the Iran-Iraq War in the 1980s, Iraqi forces targeted Kharg Island repeatedly, damaging its oil terminal and forcing Iran to reroute shipments through smaller facilities at Lavan Island and Sirri Island. Iran absorbed those attacks and kept its oil industry functioning, if at reduced capacity. That history matters because it tells you something about how difficult it is to permanently knock out a facility this important, and how much Iran has invested in protecting and fortifying it.