The current deal with Ukraine expires at the end of this year.

Moscow's stance is far removed from what Kiev and its European allies want. They are seeking guarantees that Ukraine will continue to serve as a transit route for Russian gas to Europe, leaving little obvious room for a breakthrough.

"Ukraine is looking for a long-term, 10-year deal. It's not beneficial for us, a one-year deal would be OK so that we would build up our strength and launch all those 'streams' (Nord Stream 2 and TurkStream)," one of the four sources said.

A European Union source and two other Russian sources familiar with Gazprom's thinking confirmed Moscow's stance. Gazprom and the Russian Energy Ministry declined to comment.