Iran's Islamic Revolutionary Guard Corps (IRGC) said it launched a surprise attack on July 12, 2026, destroying U.S. support infrastructure at Oman’s Duqm port [1, 2].

The strike targets critical refueling and logistics capabilities used by the U.S. military in the region. If verified, the loss of these facilities could disrupt naval operations and fuel distribution across the Gulf.

An IRGC spokesperson said, "We have destroyed the U.S. support infrastructure at Duqm port" [1]. The organization said the operation was the third phase of a response to perceived U.S. aggression [2].

According to reports, the IRGC claims a success rate of 92.9% for the strike on shipping [1]. This operation is part of a wider series of engagements; the IRGC said it has struck 85 U.S. military targets across the Gulf in retaliation [3].

However, reports on the specific locations of these strikes vary. While some sources place the primary targets at the Duqm port in Oman [1, 2], other reports state that the IRGC struck targets in Bahrain and Kuwait [3]. Additionally, some accounts suggest U.S. forces conducted strikes following an Iranian attack on a cargo ship in the Strait of Hormuz rather than a focused operation at Duqm [2].

The IRGC official said, "This operation marks the third phase of our response to perceived U.S. aggression" [2]. The group has not provided further details on the specific weaponry used in the surprise attack.

“"We have destroyed the U.S. support infrastructure at Duqm port."”

The discrepancy between Iranian claims of a strike in Oman and reports of activity in Bahrain, Kuwait, and the Strait of Hormuz suggests a fragmented intelligence picture. If the IRGC successfully targeted refueling infrastructure at Duqm, it signals a shift toward attacking logistics hubs rather than just combat vessels, potentially forcing the U.S. to relocate its support networks further from the Gulf's center.