Iran Claims Strike on Omani Navigation Site as Shipping Risks Persist

Iran’s Islamic Revolutionary Guard Corps said it targeted navigation systems on Oman’s Didamar Island, also known as Little Quoin Island, on November 8. Tehran said the equipment helped ships use the Strait of Hormuz without its permission. The island hosts maritime navigation facilities and an Omani naval presence.

Footage and satellite images showed smoke or heat signatures near the island, but the extent and source of any damage were disputed. A senior Omani official told the Maritime Executive the island had not been attacked and its navigation equipment was intact. Shipping industry sources confirmed an attack to Reuters, while saying any damage would have limited effects because alternative navigation aids are available.

On November 11, the IRGC also claimed two oil tankers had exploded after hitting mines while using a route it deemed unauthorized. It did not identify the vessels, and the incident had not been independently confirmed. The claims came as the U.K. Maritime Trade Operations center reported several commercial vessels struck by unidentified projectiles in the strait that week.

The United States says its forces are enforcing a naval blockade against Iran and working to keep the strait open to commercial traffic. The wider conflict has put shipping at risk: Reuters reported 37 attacks on commercial vessels in October and at least 10 more in the first 10 days of November. Gulf oil exports had recovered to more than 80% of prewar levels in September and October, using maritime operations and alternative routes.

Iran War’s Shipping Risks Mount as U.S. Blockade Continues

The latest reported escalation in the Strait of Hormuz underscores the danger of a war that has already taken a heavy toll. Iran’s Revolutionary Guard said it struck navigation systems on Oman’s Didamar Island on November 8, alleging they enabled ships to pass without Tehran’s permission. Oman’s account, relayed by a senior official, was that the island and its equipment were not hit.

The conflicting claims arrived alongside new maritime threats. On November 11, Iran said two oil tankers had struck mines while taking an unauthorized route, but offered no vessel names and there was no independent confirmation. The U.K. Maritime Trade Operations center had also reported several commercial ships hit by unidentified projectiles that week.

Washington says its forces are protecting shipping while enforcing a blockade of Iran. Yet Reuters counted 37 attacks on commercial vessels in October and at least 10 in the first 10 days of November. The conflict had cost U.S. taxpayers an estimated $47.1 billion by October 16, while thousands have been killed across the region. Those stakes demand scrutiny of a strategy that has not made the waterway safe.

Iran’s Strait Attacks Test U.S. Effort to Protect Shipping

Iran is escalating pressure on a vital shipping route, with its Revolutionary Guard claiming it attacked navigation equipment on Oman’s Didamar Island on November 8. Tehran said the systems helped ships transit the Strait of Hormuz without its approval. Iran also claimed on November 11 that two tankers hit naval mines while using an unauthorized route.

The tanker claim has not been independently confirmed, and the Guard did not name the vessels. Accounts of the island strike also conflict: Iranian claims and images showing smoke or heat signatures contrast with a senior Omani official’s statement that the island and its navigation equipment were undamaged. Shipping sources told Reuters any damage would have limited impact because alternatives exist.

The U.S. military says it is enforcing a blockade against Iran and working to keep commercial shipping moving. The challenge is evident: Reuters reported 37 commercial-vessel attacks in October and at least 10 more in the first 10 days of November. Gulf oil exports nevertheless reached more than 80% of prewar levels in September and October through maritime operations and alternative routes. Protecting that traffic remains central as Iran threatens access through the strait.