The Iranian Revolutionary Guards seized the oil tanker Ocean Koi in the Gulf of Oman on Friday [1].

The incident underscores the volatile security environment near the Strait of Hormuz, a critical chokepoint for global energy supplies. The seizure highlights the complexities of the "shadow fleet" used to bypass international trade restrictions.

Iran's army said the vessel was a U.S.-sanctioned tanker carrying Iranian oil [3]. According to state media, the seizure occurred because the vessel was attempting to disrupt Iran's oil exports [1].

"The vessel was attempting to disrupt Iran's oil exports," the Iranian army said [1].

Reports indicate the Revolutionary Guards seized two vessels on the same day [4]. The Ocean Koi was intercepted in the Gulf of Oman, positioned near the strategic Strait of Hormuz [1].

Analysts noted the irony of the operation, as the ship was transporting Iranian crude. "Iran has seized a tanker that appears to have been carrying its own oil, highlighting just how tangled its export system has become under sanctions and blockade," Oilprice editorial staff said [2].

Iranian authorities said the action was necessary to protect their economic interests. The vessel's status as a U.S.-sanctioned ship adds a layer of diplomatic tension to the event, as the U.S. continues to monitor Iranian maritime activities in the region [3].

"The vessel was attempting to disrupt Iran's oil exports," the Iranian army said.

This seizure reflects the contradictory nature of Iran's maritime strategy, where the state must simultaneously evade US sanctions and police the very vessels it uses to export oil. By seizing a ship carrying its own cargo, Iran demonstrates a willingness to prioritize the perceived disruption of its export channels over the security of its own shipments, potentially signaling a shift in how it manages its sanctioned trade network.