In a brief statement, Gazprom also said it had decided on how much gas to put into its storage sites this month and how the gas would reach the facilities.

"Gazprom approved and began implementing the plan for gas injection into five European underground gas storage facilities for November," it said. "The volumes and routes of gas transportation have been determined."

European gas prices have remained high through October and November, in part due to lower-than-expected imports from Russia and low levels of EU storage, especially in Gazprom-owned sites such as Rehden in Germany and Haidach in Austria.