Opec and its allies are discussing extending by more than three months the oil production cuts that expire in March 2018, potentially prolonging them well into the second half of next year in an effort to boost prices, according to people familiar with the matter.
An extension of that duration would be needed under the worst-case scenario for the oil market that Opec ministers are now contemplating, the people said last week, asking not to be named because the talks were private. One option under discussion is a six-month extension, one person said.
The Organization of Petroleum Exporting Countries and other producers including Russia, Mexico and Kazakhstan pledged to reduce output by about 1.8mn bpd to eliminate a global surplus that was depressing prices. The deal, reached in late 2016, initially called for a six-month period, which later was extended with another nine months until the end of March 2018.
Despite the cuts, oil prices have struggled to break above $50 a barrel after being weighed down by the resurgence of US shale production.
Opec and its allies are now discussing a further rollover ahead of a ministerial meeting scheduled for late November in Vienna, with a three-month extension seen as the minimum, the people said. The duration will depend on multiple variables, including the level of compliance with agreed cuts by Opec and its allies, the pace of the oil-output recovery in Libya and Nigeria, US shale supply and the strength of global demand.
Opec’s own estimates, released last Tuesday, showed that even with demand for its oil likely to increase next year, the group won’t be able to reverse curbs on output if it wants to balance the market. 
The organisation boosted its forecast for the amount of crude it needs to supply by 400,000 bpd to 32.8mn barrels in 2018, which remains in line with production last month.
The group’s total output dropped 79,100 bpd to 32.755mn a day in August amid a retreat in Libyan production, according to the report.
The group, which pumps four of every 10 oil barrels the world consumes, said that demand for its crude in the first and second quarters of 2018 will be lower than its current production, suggesting oil inventories will increase once again in the first half of next year. 
Opec pegged demand for its crude at 31.8mn bpd in the first quarter, and at 32.4mn in the second quarter. That compares with current output of nearly 32.8mn barrels.

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