Iran's negotiating team traveled to Oman on Monday as US Vice President J D Vance reported progress on Strait of Hormuz security, regional ceasefire efforts and talks over Iran's nuclear program.
Iranian Parliament Speaker Mohammad Bagher Ghalibaf posted on Telegram that he had departed Tehran for Muscat, where he is scheduled to meet Oman's Sultan Haitham bin Tariq to discuss bilateral cooperation and coordination on the joint management of the Strait of Hormuz.
Iranian Foreign Minister Seyyed Abbas Araghchi joined Ghalibaf on the visit, which comes as regional negotiations continue over shipping security and broader geopolitical issues.
Meanwhile, US Vice President J D Vance delivered remarks in Switzerland, highlighting progress in negotiations involving the Strait of Hormuz, regional security and Iran's nuclear program.
"We made a lot of good progress. We did exactly what we wanted to do," Vance said, highlighting advances made during the latest round of negotiations.
"First, we wanted to build a mechanism for keeping the Strait of Hormuz open. It is open," Vance said, adding, "We also wanted to make sure that we actually set up the coordination mechanism so that we could de-mine the Straits of Hormuz."
Vance said Iran had also agreed to allow International Atomic Energy Agency inspections, signaling "great progress" on nuclear negotiations.
"We also wanted to build a mechanism, a similar mechanism, for de-confliction for the regional ceasefire," Vance said, adding that negotiators established coordination channels to help prevent future incidents from escalating into broader regional conflicts.
Vance said this had led to a "very good foundation for a successful final deal," while noting that negotiators still have significant work ahead before reaching a final agreement.
"Our teams working with the Iranians, the Qataris, and the Pakistanis made great progress yesterday," Vance said, adding that technical negotiations will continue over the coming days and weeks under political oversight.
Meanwhile, US President Donald Trump, in a Truth Social post on Monday, also said that Iran has agreed to ensure "nuclear honesty" going forward.
"Everybody is fully aware that Iran will agree to have major weapons inspections in order to ensure 'nuclear honesty' long into the future," Trump posted.
Separately, the executive director of the International Energy Agency, Fatih Birol, said governments are reviewing energy strategies, policies, partnerships, and technology choices, and he expects the current crisis will give an additional boost to electrification efforts at an event hosted by the Octopus Energy Tech Summit during London Climate Action Week.
Oil prices eased Monday as investors assessed progress in talks involving Iran and the Strait of Hormuz. Brent crude fell 3.43% to $77.81 per barrel, while West Texas Intermediate crude dropped 2.44% to $74.73/bbl.