(QHA) -

Ukraine will buy 1 billion cubic metres (bcm) of natural gas from Russia by the end of the year and up to that same amount monthly through the winter, Naftogaz Chief Executive Andriy Kobolyev said on Monday.

"We plan to buy 1 billion cubic metres of Russian gas from now until the end of the year," he said during an energy conference in the Slovak capital, RFE/RL reports.

Ukraine's annual gas demand has been around 50 bcm, with roughly half provided by Russia. Moscow likely delivered 5-10 bcm between January and June.

Ukraine and Russia signed an agreement, brokered by the European Commission, at the end of October to cover gas supplies over the winter months as a temporary solution to a long-standing price dispute between Moscow and Kiev.

The nation's domestic gas production is typically 25 bcm per year, although output will be lower following Moscow's annexation of Crimea, leaving Ukraine needing 15-20 bcm from elsewhere.