Iran, Oman propose temporary Strait of Hormuz shipping corridor amid US pressure

One of the world's most contested waterways just got a little less contested—at least on paper. Iran and Oman announced Tuesday that they had hammered out a framework for a temporary shipping corridor through the Strait of Hormuz, a narrow passage between the Persian Gulf and the Gulf of Oman that handles roughly a third of global maritime oil trade. The two countries said they would jointly establish the new route and conduct demining operations, the result of weeks of tense negotiations that reflected the waterway's emergence as a central flashpoint in the broader standoff between Tehran and Washington.

The proposal marks a significant diplomatic move by Iran and Oman, two neighbors with long-standing ties. Omani Foreign Minister Badr bin Hamad Al Busaidi visited Tehran and met with Iranian Foreign Minister Abbas Araghchi to work out the details. After their talks, Al Busaidi posted on social media that he was hopeful the two nations would "soon announce a temporary corridor" and that future management of the strait would follow through continued regional discussions. Araghchi framed the agreement as evidence of Iran's commitment to peace and stability through diplomatic channels with its neighbors. The statement from both foreign ministries emphasized a "phased framework" for the joint project, with the understanding that talks would continue toward a permanent solution.

But the proposal immediately collided with the Trump administration's vision for the strait. Under the pending deal, according to Iran's Deputy Foreign Minister Kazem Gharibabadi, the southern route—a UN-authorized shipping channel that hugs Oman's coast—would be closed. Iran has long opposed this route and has attacked dozens of ships attempting to use it. Yet in recent weeks, many vessels have ignored Iranian demands and transited the strait anyway, relying on protection from US naval forces. Ship tracking data and US government monitors have documented a growing volume of oil moving through the waterway despite Iran's claims that it is closed, with much of that traffic using the southern route or traveling with transponders turned off to avoid detection.

The United States has made clear it will not accept Iran's authority over the strait. Trump administration officials argue the waterway is international territory, not Iranian waters. Last week, President Trump threatened to attack Oman if it interfered with US operations in the region. On Tuesday, Trump reiterated that all mines in the strait have been removed or detonated and warned he would destroy any vessels attempting to place new ones. "We are watching every square inch of the strait," he said. The administration has also begun warning shipping companies that they could face sanctions or penalties if they comply with information requests from Iranian agencies regarding transits.

The Iran-Oman proposal is unfolding against a backdrop of escalating economic pressure from Washington. The Trump administration unveiled what it calls "Operation Economic Outcast," a sweeping sanctions campaign targeting more than 60 entities, individuals, and vessels worldwide accused of supporting Iran's nuclear and missile programs, cyber operations, and oil revenue generation. Treasury Secretary Scott Bessent announced new sanctions determinations covering five sectors deemed critical to Iran's economy: digital assets, technology, gold, aviation, and shipping. The administration is simultaneously pressuring countries globally to shut down economic activities linked to Iran, with Bessent warning that nations have defined timelines to comply or face unilateral US action through Treasury authorities.

The sanctions campaign includes specific measures against Iran's banking system. Bessent singled out Bank Melli, Iran's largest bank, saying every branch must be shuttered. The administration has also mapped Iran's networks used to smuggle oil and evade sanctions, pledging what Bessent called a "zero-leakage approach" to cut off revenue streams funding the Iranian government and the Islamic Revolutionary Guard Corps. Entities facilitating money laundering on behalf of Iran risk losing access to the US dollar system entirely.

Iran's response has been defiant. Parliament Speaker Mohammad Bagher Ghalibaf claimed Tuesday that after suffering defeat in military and political confrontations, the United States would also fail in its economic warfare. The statement reflected Tehran's determination to resist what it views as American economic coercion. Qatar's prime minister spoke by phone with Iran's foreign minister to discuss the proposed temporary shipping channel, signaling regional support for the Iran-Oman initiative despite Trump's threats.

What happens next remains deeply uncertain. The Iran-Oman proposal exists in a legal and political gray zone. Iran insists vessels would pass through Iranian waters under the new arrangement, a formulation the US rejects outright. Whether shipping companies will use the corridor, whether the US will tolerate it, and whether the sanctions campaign will force countries to abandon economic ties with Iran are all open questions. The strait, already one of the world's most strategically sensitive chokepoints, has become a test of whether regional diplomacy can carve out space for commerce amid great power competition.