Oil prices jumped more than $4 a barrel on Friday as attention turned to next week's OPEC+ meeting and dimming expectations that the producer group will boost supply.
Brent crude futures for September settlement, due to expire on Friday, gained $3.29, or 3.1%, to trade at $110.43 a barrel by 11:05 a.m. (1505 GMT) after touching their highest since July 5. The more active October contract was up $4.42 at $106.25.
U.S. West Texas Intermediate (WTI) crude futures rose $4.85, or 5%, to $101.27 a barrel.
Both contracts were set for a weekly rise of about 7% but also on track for a second monthly loss, with Brent down 3.8% for July and WTI down 4.2%.
Stronger stock markets supported oil on Friday, as did a weaker dollar, which makes oil cheaper for buyers with other currencies.
"These days, there has been a lot of macro influences on the oil market with the stock market making a nice rebound and a similar fall in the dollar feeding into (today's prices)," said John Kilduff, partner at Again Capital LLC.
Global equities, which often move in tandem with oil prices, were up on the hope that disappointing growth figures would encourage the U.S. Federal Reserve to ease up on monetary tightening.
A Reuters survey forecast Brent would average $105.75 a barrel this year with U.S. crude averaging $101.28.
Front-month Brent futures are selling at a rising premium to later-loading months, a market structure known as backwardation, indicating tight current supply.
"The oil market in Europe is considerably tighter than in the U.S., which is also reflected in the sharply falling Brent forward curve," said Commerzbank analyst Carsten Fritsch.
Investors will watch the next meeting of the Aug. 3 meeting of the Organization of the Petroleum Exporting Countries (OPEC) and allies led by Russia, together known as OPEC+.
OPEC+ sources said the group will consider keeping oil output unchanged for September, with two saying a modest increase would be discussed.
A decision not to raise output would disappoint the United States after President Joe Biden visited Saudi Arabia this month hoping for a deal to open the taps.
Analysts said it would be difficult for OPEC+ to boost supply, given that many producers are already struggling to meet production quotas.OPEC+ compliance with oil output cut pledges reached 320% in June, Russian Interfax news agency reported, citing a source familiar with the data. It said the group's combined oil underproduction was 2.84 million barrels per day last month.