Gas transit through the Yamal-Europe gas pipeline to Germany has been suspended.
The question of whether the gas pipeline will be launched remains open.
The volumes of gas pumped through the Yamal-Europe gas pipeline decreased.
After the gas crisis in October, the country wants to provide itself with stocks.
Underground storage facilities are less than 60% full.
Over the past week, world oil quotations have experienced serious volatility.
Naftogaz has not purchased natural gas from Russia for more than 1,500 days
Prices for European gas hubs began to decline sharply at the end of December.
Ukraine consumed more than 1 billion cubic meters of gas from underground gas storages in November.