Dec 8 (Reuters) - Russian banks took up 86% of all OFZ treasury bond offerings at auctions in October and November, an official from MOEX Group, which runs Russia's largest exchange, said on Thursday.

"Banks are carrying the OFZ market on their shoulders, their share in OFZ auctions reached 86% in October-November," said Gleb Shevelenkov, director of the debt market department at MOEX Group. (Reporting by Reuters; editing by Jason Neely)