"It is unlikely there will be any change to the policy," an OPEC+ source said.
Talks begin on Saturday when OPEC ministers hold a virtual meeting at 1100 GMT.
Some OPEC+ delegates and analysts are not ruling out a surprise at Sunday's meeting.
JPMorgan, in a report this week, said OPEC+ was likely to hold the line at the meeting while leaving the door open to a cut of more than 500,000 bpd if demand deteriorates further.
Reporting by Alex Lawler, Maha El Dahan, Ahmad Ghaddar and Rowena Edwards; Editing by Mark PotterOur Standards: The Thomson Reuters Trust Principles.