MOSCOW, Oct 21 (Reuters) - Russian President Vladimir Putin on Thursday said curbs on investments in oil development could lead to shortages of crude oil in coming years.

There could be a moment in the future when global demand for oil increases but there is no oil available, Putin said. (Reporting by Vladimir Soldatkin and Gabrielle Tétrault-Farber; Writing by Andrey Ostroukh; Editing by Mark Trevelyan)