Oil futures rose after Iran announced it would keep nuclear material.
Brent rose 1.4 percent to $92.76, while WTI crude jumped to $86.53, after Iran's security chief, Mohsen Razai, said not a single particle of enriched nuclear material would leave the country.
"We need the enriched material to design ships and submarines that run on nuclear energy," Razai said.
Earlier, oil prices fell by more than $3 after US officials downplayed the need for further strikes on Iran. Brent and WTI prices have fallen by about 21% and 17%, respectively, since the beginning of the month amid hopes for the end of the war.