REUTERS
Ukraine in late November 2015 refused to purchase natural gas from Russia's Gazprom.
Ukraine has not imported natural gas from Russia for 900 days since November 2015.
Read alsoLavrov says Russia ready for gas transit consultations with Ukraine – Russian media
"Today, 900 days have passed since the historic moment when Ukraine began to do without gas imports from the Russian Federation," the state-run gas transport system operator Ukrtransgaz said in a statement on May 15.
As UNIAN reported earlier, Ukraine in late November 2015 refused to purchase natural gas from Russia's Gazprom. In general, the country doubled gas imports from Europe in 2015 from 2014, to 10.3 bcm, reducing by 56.5% the purchase of hydrocarbons from Russia.
In 2016, Ukraine imported 11.1 bcm of gas from Europe alone, whereas 13.9 bcm of gas in 2017. The cost of imported natural gas in 2017 totaled US$3.228 billion.