Oil prices extend gains as Trump comments diminish hopes for a U.S.-Iran peace deal

International benchmark Brent crude futures for July gained 0.30% to $104.51 a barrel. U.S. West Texas Intermediate futures for June rose 0.31% to $98.40 per barrel.

Trump told reporters that the state of the ceasefire is “unbelievably weak,” calling Iran’s counterproposal to end the conflict “garbage.”

“I would say the ceasefire is on massive life support, where the doctor walks in and says, ‘Sir, your loved one has approximately a 1% chance of living,'” Trump said.

Since the U.S. and Israeli-led war against Iran started on Feb. 28, WTI and Brent are both up more than 40%. “Oil prices have been volatile and can rise further if US-Iran dealmaking remains thorny,” Citi said in a note.

Re-escalation in the Iran war is certainly possible investment firm Dragonfly’s Chief Intelligence Officer Henry Wilkinson told CNBC’s “Squawk Box Asia” on Tuesday, adding that Trump may ask Chinese President Xi Jinping to press Iran to accept U.S. terms later this week during talks between China and the U.S.

— CNBC’s Kevin Breuninger  contributed to this report.