USFs were filled by 84% as of December 6, 2020.
Natural gas stocks in Ukraine's underground storage facilities (USFs) shrank by 2.5%, to 25.95 billion cubic meters (bcm) within a week, November 28-December 6.
As of December 6, 2020, gas reserves in the country's USFs increased by 28% from 20.25 bcm as of December 6, 2019, the state-run gas transport system operator Ukrtransgaz said.
The USFs were filled by 84% as of December 6, 2020.
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Ukraine started pumping natural gas into its USFs on March 11 as the country's reserves stood 15.808 bcm.
On October 28, National Joint-Stock Company Naftogaz of Ukraine said it had stopped injecting gas into the underground storage facilities, having switching to pumping it out to cover the needs of the 2020-2021 heating season
By the start of the 2019-2020 heating season, Ukraine had accumulated 21.76 bcm of gas, which was a record high over the past decade.
Natural gas stocks in the country's USFs shrank by 1.8%, to 27.15 bcm on November 14-21, and by 1.9%, to 26.63 26.63 bcm on November 22-28.