Benchmark Brent crude oil rose $3.26 a barrel to a high of $63.32 by 1355 GMT. In early trade, Brent had fallen below $60 when it looked as if oil exporters might not agree.
U.S. light crude rose $2.62 to a high of $54.11 a barrel before slipping to around $53.90.
Prices fell almost 3 percent on Thursday after the Organization of the Petroleum Exporting Countries ended a meeting in Vienna with only a tentative deal to tackle weak prices. Talks with other producers were held on Friday.
But Iran gave OPEC the green light on Friday to reduce oil output by around 0.8 million barrels per day from 2019 after finding a compromise with rival Saudi Arabia over a possible exemption from the cuts, an OPEC source said.
OPEC is seeking support from non-OPEC Russia for supply cuts. Russian Energy Minister Alexander Novak returned to Vienna on Friday after discussing the issue with President Vladimir Putin.
A Russian Energy Ministry source said Moscow was ready to contribute a cut of around 200,000 bpd and sources said other non-OPEC producers could contribute a further 200,000 bpd of output cuts, bringing an overall cut to 1.2 million bpd.
"(A cut of) 1.2 million bpd, if implemented promptly and fully, should be enough to largely attenuate, but not eliminate, expected implied global inventory builds in the first half of next year," BNP Paribas strategist Harry Tchilinguirian told Reuters Global Oil Forum.
"Given how much expectations were downplayed yesterday, this comes as a welcome surprise for the market," he added.
Oil output from the world's biggest producers - OPEC, Russia
and the United States - has increased by 3.3 million bpd since
the end of 2017 to 56.38 million bpd, meeting almost 60 percent
of global consumption.
(Reporting by Julia Payne and Christopher Johnson in London and Henning Gloystein in Singapore; Editing by David Holmes and Edmund Blair)
(This story has not been edited by Devdiscourse staff and is auto-generated from a syndicated feed.)