Crude oil futures rose by more than 5% in after-hours trading on Monday as markets weighed reports about Iran's suspension of peace talks with the US, stoking fears of prolonged supply disruption, even as President Trump claimed that the negotiations were ongoing.
Front-month West Texas Intermediate crude futures advanced 5.85% to $92.47 per barrel, and Brent futures were up 4.69% to $95.39/bbl.
Saxo Bank strategists said crude prices rebounded from a six-week low amid ongoing uncertainty over the prospects for a peace deal to end the war with Iran.
On Monday, Iran reportedly said it would suspend indirect communications with the US, and its allied "Resistance Front" was reported to be planning to completely block the Strait of Hormuz and choke other waterways, including the Bab el-Mandeb Strait.
However, President Donald Trump pushed back on those reports, saying talks were still ongoing.
"Talks are continuing, at a rapid pace, with the Islamic Republic of Iran," Trump posted on Truth Social.
Earlier in the day, the US President said he was not informed in advance of Iran's decision to halt negotiations and, in phone interviews with US media, dismissed concerns about the suspension.
"I really don't care. I couldn't care less," Trump reportedly told CNBC.
Foreign Minister Abbas Araghchi said that the truce agreement between the US and Iran applies to "all fronts, including in Lebanon," adding that a breach in one area constitutes a violation of the broader arrangement.
"The ceasefire between Iran and the US is unequivocally a ceasefire on all fronts, including in Lebanon," Araghchi said, adding that the US-Israeli alliance is responsible for the consequences of any violation.
Iran's Speaker of Parliament, Mohammad Baqer Ghalibaf, also said that the US naval blockade of Iranian ports and Israel's renewed attacks in Lebanon will come at a price for Washington and Tel Aviv.
The naval blockade and escalation of war crimes in Lebanon by the genocidal Zionist regime are clear evidence of US noncompliance with the ceasefire, Ghalibaf said in a social media post on X.
Scotiabank strategists said a prolonged geopolitical conflict involving Iran would tighten global oil markets and generate significant supply disruptions.
On the supply side, US crude stockpiles are expected to drop by about 6.2 million barrels in the week ended May 29, Macquarie strategists said in a weekly note on Monday, following a 3.3-mmbbl draw the previous week.
Macquarie analysts projected that domestic supply remained flat on a nominal basis, while stocks in the Strategic Petroleum Reserve are estimated to decrease by 8 million bbls.