Brent crude oil prices surpassed $107 a barrel on Monday morning.
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israeli strikes targeting military, government and infrastructure sites.
Delegations from the U.S. and Iran entered negotiations in June aimed at a war-ending deal based on a memorandum of understanding signed by both countries.
Those talks broke down as the U.S. and Iran continued to exchange strikes, with the strategic Strait of Hormuz as the primary flashpoint. Trump then said in August that the U.S. would launch a "crushing economic operation" to force Tehran into submission.
Saudi Arabia asked for the postponement of Monday's planned meeting between Iranian and Gulf state representatives in Oman, Iranian Foreign Ministry spokesperson Esmaeil Baqaei told reporters during a Monday press conference.
Omani Foreign Minister Badr Albusaidi announced on Sunday that the meeting was postponed "in the interest of consensus." No new date has been set.
-ABC News' Victoria Beaule
Iranian Foreign Ministry spokesperson Esmaeil Baqaei said Monday that "it cannot be claimed there are nuclear facilities," at Pickaxe Mountain, adding that any claim to the contrary had "no basis whatsoever."
President Donald Trump said last week that "somebody said there was a little movement at the site," warning Iran "not to get cute because we will have to hit them very hard."
Pickaxe Mountain sits around a mile south of the Natanz Nuclear Facility, which long served as Iran's primary uranium enrichment center. The Natanz site was among those attacked by the U.S. in June 2025 as part of Operation Midnight Hammer.
-ABC News' Victoria Beaule
The Iran-backed Houthi rebels in Yemen on Monday claimed to have launched a "wide-scale military operation" targeting the King Khalid Air Base in southwestern Saudi Arabia.
In a statement posted to Telegram, Houthi spokesperson Yahya Saree said the group used "dozens of ballistic missiles and drones" to attack the air base in the city of Khamis Mushait, with targets including hangars housing combat aircraft, radars, runways and ammunition depots.
The Saudi Defense Ministry did not immediately comment on the Houthi claim.
Saree said the latest Houthi strikes were in part a response to the recent intensification of Saudi airstrikes against the group. Saudi aircraft, he said, have conducted more than 300 strikes in the last five days.
Global and U.S. oil prices continued to edge higher early on Monday morning, following attacks on Saudi oil infrastructure and the targeting of more commercial vessels in the Strait of Hormuz.
Brent crude oil prices, a benchmark for global trading, were more than $107 per barrel as of Monday morning, up nearly 3%. WTI crude oil, used as the North American benchmark, was nearing $103 per barrel up around 3%.
