The Iranian Revolutionary Guard Corps (IRGC) navy claimed on Thursday, October 22, 2026, that it struck seven oil tankers in the Strait of Hormuz. According to a statement from the IRGC, four of the vessels caught fire in the northern Persian Gulf, while three others were immobilized after striking naval mines west of the strait. Iranian state television also reported the incidents, which would represent the largest single-day total of vessel strikes since the conflict began in February 2026.
These reports follow several months of maritime conflict in the region. In September 2026, Iran claimed to have struck 10 ships, including two U.S. vessels, after the U.S. military reported sinking five Iranian tankers. During that period, Brent crude oil prices rose above $100 a barrel for the first time since July. The U.S. Central Command (Centcom) has previously disputed Iranian claims of successful strikes on American warships, stating in September that all such IRGC attempts had failed.
In the days leading up to the October 22 report, the IRGC claimed additional naval mine strikes. On October 18, 2026, the IRGC reported two tankers carrying approximately 2 million barrels of crude oil each caught fire after hitting mines. On October 21, the group claimed five more tankers were attacked, stating that vessels were targeted for using "unauthorized" southern passages or failing to coordinate with Iranian naval authorities. The U.S. recently withdrew staff from its embassy in Saudi Arabia as Houthi rebels in Yemen opened a new front in the regional conflict.
The scale of the reported maritime activity involves millions of barrels of oil and significant financial volatility. For example, a single tanker struck in September carried 2 million barrels of fuel oil, and the IRGC has threatened to hit 20 tankers for every two or three of its own that are struck. A typical household would notice these effects through fluctuations in fuel costs and the broader impact of energy-driven inflation on the price of consumer goods. The conflict also impacts regional stability, as evidenced by the Houthi movement's attacks on four Saudi Arabian cities on September 8, which wounded 73 people and caused fires at oil installations.
The reported attacks set a precedent for increased Iranian control over international waters, as the IRGC has announced plans to expand "forbidden" zones for shipping as far as the Gulf off Chabahar. U.S. Secretary of State Marco Rubio stated the U.S. will continue to target Iranian tankers in response to attacks on U.S. naval ships. What happens next depends on potential military actions following the U.S. midterm elections, as reports indicate the U.S. and Israel are drafting plans for possible strikes on Iran. Major General Mustafa Idardi of the IRGC stated that operational control will continue based on Iranian interests, though Tehran suggested maritime operations could be normalized within seven days if its demands are met.