The meeting of OPEC+, which pumps half of the world's oil, comes during a fresh U.S. effort to broker a Russia-Ukraine peace deal, which could add to oil supply if sanctions on Russia are eased
OPEC+ has raised output targets by more than 2.7 million barrels per day - about 2.5% of global supply - since April but slowed the pace in October and November from larger increases amid predictions
Key members of the group led by Saudi Arabia are discussing a hike of about 137,000 barrels a day - matching those made in October and November
The decline reflects a US-led trade war, exacerbating oversupply amid Opec+'s 2.72 mb/d restoration and a 0.5 mb/d surplus
WTI crude oil prices opened weaker, tumbling over 4 per cent in early trading, a sharp reversal from the prior week's modest 2.2 per cent.
OPEC+ will increase output by 137,000 bpd from October to regain market share, a move analysts say could push Brent crude below $65 and even $55 a barrel by year-end
Key alliance members said they expect to approve adding about 137,000 barrels during a video call on Sunday, as the group led by Saudi Arabia and Russia begins unwinding next layer of halted supplies
The Organization of the Petroleum Exporting Countries and its allies, together known as Opec+, agreed on Sunday to raise oil production by 547,000 barrels per day for September
Brent crude futures fell 91 cents, or 1.3 per cent, to settle at $68.76 a barrel, while US West Texas Intermediate crude declined by $1.04, or 1.5 per cent, to close at $66.29 a barrel
Major oil producers are pointing to signs of better economic growth in the second half of the year while data from China showed consistent growth
The forecasts for demand in 2026 through 2029 are all lower than last year. Demand will average 106.3 million bpd in 2026, OPEC said, down from 108 million bpd seen last year
Since April, OPEC and its partners have pivoted from years of output restraint to reopening the taps, surprising crude traders and raising questions about the group's long-term strategy
Crude oil markets are pricing in a fair amount of uncertainty at the current levels, Das said. That's why oil had dropped below $60 for a time-before the West Asia tensions pushed it back up
OPEC also said supply from countries outside the Declaration of Cooperation - the formal name for OPEC+ - will rise by about 730,000 barrels per day in 2026, down 70,000 bpd from last month's forecast
The return of Chinese market participants after a five-day public holiday since May 1 was also seen supporting prices on Tuesday
Oil prices fell to a four-year low in April below $60 per barrel after Opec+announced a bigger-than-expected production boost for May
Oil has dropped 20% to a four-year low since Trump took office-but that still doesn't make it a bargain
Opec+ is a group that includes Opec and allied producers led by Russia, and pumps over 40 per cent of the world's oil. The group is scheduled to raise output by 135,000 barrels per day in May
The Organization of the Petroleum Exporting Countries, in a monthly report, said world oil demand will rise by 1.45 million barrels per day (bpd) in 2025 and by 1.43 million bpd in 2026
The meeting comes after Trump imposed tariffs on Mexico, Canada and China, America's top trading partners, in a move that roiled financial markets and gave oil prices some support