"Yesterday's talks on freezing oil production volumes led to the most unexpected results," Golubev told an energy conference in Moscow.

"Hydrocarbon producers are not ready today to reach agreements proceeding from universal human values. Everyone is pursuing their own selfish goals, and this may lead to the most unpredictable scenarios."

(Reporting by Denis Pinchuk; Writing by Dmitry Solovyov; Editing by Lidia Kelly)