KIEV, July 14. /ITAR-TASS/. Ukraine has pumped 114 million cubic meters of gas into its underground storage between July 4 and July 11 and increased the volume of reserves to 14.503 billion cubic meters, according to the GSE association’s data made public on Monday.

As of July 11, the Ukrainian underground storage were 45.39% full.

Ukraine pumps 22-25 million cubic meters of gas into its underground gas storage daily from reverse gas supplies and locally produced gas.

Ukraine can pump 1.7 billion cubic meters of gas in June-July into the storage. In May, Russian gas giant Gazprom said Ukraine must have 18.5 billion cubic meters of gas in the storage to ensure flawless transit to the EU in the upcoming winter season.

Ukraine has 12 underground gas storage facilities with a total capacity of around 31 billion cubic meters. The country joined the EU’s AGSI+ system of registering gas reserves in underground storage in May. Under the system’s requirements, Naftogaz will publish gas reserves data each Friday.

June 16, Gazprom switched Ukraine off gas over unpaid debt while continuing pumping gas to the EU.