More than 80% of liquid cargo transits through the strait over the past two weeks either used the Omani route or traveled with transponders switched off and likely followed that path, CNN reported, citing Kpler, which tracks ships using transponder and satellite data.
The US military is meanwhile quietly operating a shipping corridor along the Omani side of the strait that is helping move about 10 million barrels of oil a day, Axios reported, citing two US officials.
“It increasingly looks like Iran has at least partially lost control of the strait,” Homayoun Falakshahi, Kpler’s head of crude oil analysis, told CNN.
US organizes traffic along Oman
The US operation has been underway for several weeks, with 15 to 20 tankers entering and leaving the strait each night through a southern channel along Oman’s coast, the two US officials told Axios.
The effort goes beyond moving outbound oil shipments. The US military is helping empty tankers enter the Persian Gulf from the Arabian Sea, travel to ports in the UAE, Bahrain and Kuwait to load oil and then exit through the strait, according to Axios.
A task force run from the US Army’s 82nd Airborne Division headquarters at Fort Bragg coordinates daily inbound and outbound traffic with regional Gulf partners, Axios reported. US fighter jets patrol above the route to intercept Iranian cruise missiles and drones.
“We have been controlling the southern lane of the Strait of Hormuz for two months now. The Islamic Revolutionary Guard Corps can be a nuisance, but they don't control the strait. We do,” a US official with direct knowledge of the operation told Axios.
The growing use of the Omani route has also reduced Iran’s ability to collect tolls from vessels passing through the strait as it did earlier in the war, according to Kpler.
Ali Gholhaki, a political activist close to Iranian parliament speaker and top negotiator Mohammad Bagher Ghalibaf, said in a post on X that the United States had used specialized vessels to clear sharp rocks along the southern, Omani side of the Strait of Hormuz to facilitate traffic through the corridor.
“The quiet transfer of oil by the United States through the southern Strait of Hormuz will reduce the strait’s leverage,” he wrote, adding that if the arrangement continued, Washington would have little incentive to lift its blockade, ease sanctions or release frozen funds.
Trump says blockade is working
Trump said Wednesday the strait remained open and described the US naval blockade of Iran as “100% successful.”
“Right now, the Strait is open. A lot of boats are coming through,” Trump told reporters at the White House.
“The blockade has been 100% successful. No boats have gotten into Iran, but they are getting in for other places,” he said.
US Central Command said Wednesday that US forces had redirected 65 commercial vessels, disabled three and boarded two as part of enforcement of the blockade against Iran.
Iran has nevertheless continued attacking vessels using the waterway, according to CNN. The continued attacks leave control of the strait contested even as recent shipping patterns indicate Tehran has less ability to dictate traffic than it did earlier in the war.
Washington weighs further pressure
The erosion of Iran’s leverage in the Strait of Hormuz comes as Washington considers tightening economic pressure on Tehran further.
Trump said Wednesday the United States was weighing additional sanctions on Iran.
“We have things that we could sanction. We have very draconian sanctions, and we’ll see what happens,” he told reporters.
Treasury Secretary Scott Bessent also signaled tougher measures last week, telling Newsmax that Washington would apply measures against Iran that had “never been seen” in the economic isolation of a country.
Trump also argued that Hormuz could become less important to global energy markets as countries turn to alternative oil supplies and new pipelines.
“People have found other alternatives, which they never thought about: Texas, Alaska, Louisiana, and other places,” he said.
“So I think the Hormuz Strait is not going to be quite as important as it was in the past,” Trump added.
Trump also said Wednesday that Iran could not be allowed to obtain a nuclear weapon.
“Iran cannot have a nuclear weapon. You know why? Because they would use it. We are not gonna let them use it,” he said.
For now, the growing use of the Oman-side route and the US-organized corridor point to a significant erosion of Iran’s leverage over Hormuz, while continued Iranian attacks show that control of the strategic waterway remains contested.