KYIV, Oct 17 – Uncertainty over Russian gas transit has increased interest in accumulation of gas into Ukraine's underground gas storage (UGS) facilities, Director General of Gas Transmission System Operator of Ukraine LCC (TSO of Ukraine) Sergiy Makogon said.

According to him, today, the Ukrainian UGS facilities have 2.32 billion cubic meters of gas of nonresidents of the country in the "customs warehouse" mode.