
US benchmark West Texas Intermediate gained 2.5% to US$89.60 a barrel.
Brent North Sea crude, meanwhile, was trading around US$93.16 a barrel for August delivery, a rise of about 2.2% from Friday’s close.
The increase follows a week where crude prices dropped over 11% amid hopes that an imminent peace agreement would lead to the reopening of the Strait of Hormuz, through which a significant portion of the global oil supply transits.
Over the weekend, however, The New York Times and other US media reported US President Donald Trump had sent back a new version of a possible memorandum of understanding to Tehran with several tightened negotiating points.