OPEC will meet non-OPEC countries to finalise a global oil limiting pact on December 10 in Vienna, according to Reuters.
Two OPEC sources earlier said the meeting was due to take place in the Russian capital Moscow, but later said that plan had changed.
OPEC agreed this week to reduce output by around 1.2mn barrels per day (bpd) beginning in January in a bid to reduce global oversupply and prop up prices.
It hopes non-OPEC countries will contribute another 600,000 bpd to the cut. Russia has said it will reduce output by around 300,000 bpd.
