KYIV, Sept 11 – Poland's PGNiG SA has extended the contract with Ukrtransgaz for storing gas in Ukrainian underground gas storage facilities (UGS), the press service of Ukrtransgaz reported.

"Ukrtransgaz and the Polish energy company PGNiG have extended the contract for storage of natural gas in Ukrainian underground gas storage facilities ... It is planned to sign contracts with a number of leading German traders for gas storage in Ukraine's UGS by the end of 2018," the press service said.