MOSCOW (Reuters) - A gathering of Russian oil firms and President Vladimir Putin that had been scheduled for Nov. 23, a week before an OPEC meeting in Vienna, has been postponed, Kremlin spokesman Dmitry Peskov told Reuters.

Two energy industry sources told Reuters earlier on Monday that the meeting, which was expected to discuss possible output curbs, had been delayed until Dec. 19.

"The commission was postponed as the agenda is still being worked out. Work with Russian oil companies is being regularly carried out by the energy ministry. There are no separate meetings scheduled by the president," Peskov said.

(Reporting by Maria Tsvetkova and Katya Golubkova; Editing by Alexander Winning)