U.S. threatens sanctions and military action against Oman

The Trump administration’s threats against Oman, a longtime U.S. ally, have thrown a country known for cultivating a reputation as the “Switzerland of the Middle East” firmly into the geopolitical spotlight.

Positioned on the southeastern coast of the Arabian Peninsula and facing Iran across the strategically vital Strait of Hormuz, Oman has served as a key intermediary in regional crises, including the U.S. and Israeli-led war against Iran.

Treasury Secretary Scott Bessent on Thursday warned the U.S. would “aggressively” impose sanctions against Oman if it helped Iran to establish a tolling system in the Strait of Hormuz, a waterway that typically handles around 20% of the world’s global oil traffic.

“Oman, in particular, should know that the U.S. Treasury will aggressively target any actors involved – directly or indirectly – in facilitating tolls for the Strait and any willing partners will be penalized,” Bessent said in a post on X.

“All nations should reject outright any efforts by Iran to disrupt the free flow of commerce.”

His comments came less than 24 hours after President Donald Trump appeared to threaten military action against the Gulf partner.

When asked by a reporter during a cabinet meeting for his thoughts on Oman and Iran overseeing trade through the Strait of Hormuz, Trump said, “Oman will behave just like everybody else, or we’ll have to blow them up. They understand that. They’ll be fine.”

CNBC has contacted a spokesperson for Oman’s Foreign Ministry and is awaiting a response. Iran has previously indicated it could jointly manage the Strait of Hormuz, alongside Oman, although Muscat has not said it is seeking control over one of the world’s most important oil chokepoints.

Geopolitical analysts said U.S. threats against Oman, a close economic and security partner, marked a highly unusual change in posture.

Brian Katulis, senior fellow at the Middle East Institute, a Washington-based think tank, said Oman plays an important role in the Strait of Hormuz because of geography, with its territory on the western side of the waterway. He noted that the country has a longstanding policy to uphold the open flow of oil and other goods.

“It also sees itself as the ‘Switzerland’ of the Middle East – a mediator that talks with all parties and seeks to maintain positive relations with all countries,” Katulis told CNBC by email.

“Trump’s threats against Oman are a sign of his frustration and his desperation about his own inability to produce the results he had hoped for…