(Updates prices in the second paragraph and adds detail on the US waiver for Iranian exports in paragraph four.)
West Texas Intermediate (WTI) closed at the lowest in more than three months on Monday as talks between Iran and the United States are progressing, raising hopes the Strait of Hormuz could fully reopen and allow Persian Gulf energy exports to flow more freely, and the United States lifted sanctions on Iran's oil exports.
WTI crude oil for July delivery closed down 2.3% to settle at US$74.82 per barrel, the lowest since March 4, while August Brent oil was last seen down 3.6% to US$77.70.
US Vice President JD Vance said technical talks aimed at formalizing last week's memorandum of understanding between the United States and Iran are progressing well, despite threats directed at Iran that President Donald Trump posted on social media over the weekend.
A deal between the two countries could fully reopen the Strait of Hormuz, the chokepoint for exports from the Persian Gulf nations that supplied a fifth of daily oil demand prior to the Feb. 28 start to the war. Tankers have started moving through the waterway and Iran has resumed exports. The United Arab Emirates, Kuwait and Iraq reportedly promised to deliver more oil to customers.
The US Treasury Department on Monday granted Iran a 60-day waiver to freely export oil and petrochemicals, and to collect payments in US dollars.