Ukraine had received around 46.5 million cubic metres of gas on Feb. 21, a spokesman said.
Supplies from Russia's Gazprom resumed on Dec. 9 after being cut off for six months due to a dispute over pricing and unpaid bills.
Ukraine had 8.2 billion cubic metres (bcm) of gas in underground storage as of Feb. 14, down by around 50 percent since the start of the heating season, Ukrtransgaz data showed.