KYIV, April 10 – Naftogaz Ukrayiny CEO Andriy Kobolev has called on gas market players in Ukraine to create gas reserve stocks in the conditions of a threat of termination of contracts with Russia's Gazprom from January 1, 2020.

"European practice and the Ukrainian law on the gas market provides for the creation of reserve stocks by all gas supplying companies without exception. In past years, the reserve stock requirement was ignored. Now it is the time to return to this issue. The government, Naftogaz and all gas market players must properly prepare for the next heating season," he wrote on his page in the Facebook social network.