Production from outside the Organization of Petroleum Exporting Countries will grow by 200,000 barrels a day next year, according to the group, which a month ago had projected a drop of 150,000 a day.

London Brent crude for November delivery was down 58 cents at $49.41 a barrel as of 0647 GMT after rising above $50 for the first time in two weeks and settling up $2.01, or 4.2 percent, on Thursday. NYMEX crude for October delivery was down 51 cents at $47.11.

Iran has told OPEC it pumped 3.63 million barrels of oil per day (bpd) in August, up 10,000 bpd from July, an OPEC source said, marking a slowdown in the rapid growth that followed the lifting of Western sanctions in January.

The decline in earnings was driven largely by the decline in crack spreads (the price difference between crude oil and petroleum products) in the second quarter. In addition to changes in crack spreads, which serve as an indicator of refinery profits, earnings per barrel reflect transportation costs and other operating expenses. Also, refiners use different crude oil blends and produce different yields of refined products, which changes the per barrel earnings among refiners.

London Brent crude for November delivery had climbed 75 cents to $48.73 a barrel by 0400 GMT, after settling up 72 cents on Wednesday. NYMEX crude for October delivery was up 79 cents at $46.29, having ended the previous session up 67 cents.

Brent crude oil prices are forecast to average $43/b in 2016 and $52/b in 2017. West Texas Intermediate (WTI) crude oil prices are forecast to average $1/b less than Brent in 2016 and 2017.

Oil sands are one of the world’s most expensive and are also among the most carbon dioxide-intensive forms of crude-oil extraction.

November Brent crude futures rose 49 cents to $47.75 a barrel by 0900 GMT, while U.S. crude futures added 46 cents at $45.29 a barrel.

“Iran wants a stable market and therefore any measure that helps the stabilisation of the oil market is supported by Iran,” Mr Zanganeh said. “We support oil prices between $50 and $60 per barrel.”

"Our government supported the freeze and we have to support the freeze. We have the capacity to produce more. But if the freeze is for a certain period and will stabilize the market, definitely the freeze is in our favor,"

"Supply and demand are near balance, but the balance is precarious," Andy Milnes, CEO, Integrated Supply & Trading (Eastern Hemisphere), BP, told delegates.

Saudi Arabia hopes to work with Russia for stability in oil markets, Prince Mohammed bin Salman said Sunday in a meeting with the Russian president in Hangzhou, China. World leaders are gathering in China this week for a summit of Group of 20 nations. Russia and Saudi Arabia will meet with other producers in Algeria this month to discuss oil markets.

Light, sweet crude for October delivery rose 84 cents, or 1.9%, to $45.28 a barrel in the Globex electronic session. November Brent crude added six cents, or 0.1%, to $47.69 a barrel.

Supplies from the Organization of Petroleum Exporting Countries rose by 120,000 barrels a day to average 33.69 million a day in August amid increases by Iran, Iraq and Kuwait, the survey of analysts, oil companies and ship-tracking data showed. The group is due to hold informal talks in three weeks in Algiers, where Russian President Vladimir Putin says an agreement can be reached to limit output.

State-owned Saudi Arabian Oil Co., known as Aramco, increased its official selling price for Arab Light crude to Asia by 90 cents a barrel, to 20 cents below the regional benchmark, it said Sunday in an e-mailed statement. The company had been expected to raise Arab Light prices by 50 cents a barrel, to 60 cents less than the benchmark for Asian buyers, according to the median estimate in a Bloomberg survey of seven refiners and traders in the region.