Ukrtransgaz

JSC Ukrtransgaz, a subsidiary of NJSC Naftogaz of Ukraine, was established pursuant to a Cabinet of Ministries of Ukraine Resolution No. 1173 of July 24, 1998, "On unbundling of functions for production, transportation, storage, and sale of natural gas".

Until January 1, 2020, JSC Ukrtransgaz operated in 3 main areas:

transportation of natural gas via main gas pipelines on the territory of Ukraine and its transit from Russia to European countries;

natural gas storage;

maintenance and retrofit of gas transportation facilities.

However, after the unbundling (a reform in Ukraine's gas industry to separate gas transportation activities) had been completed, this function was transferred to LLC GTS Operator of Ukraine. At the same time, JSC Ukrtransgaz started operating as an independent SSO of Ukraine.

On April 7, 2023, the National Energy and Utilities Regulatory Commission (NEURC), following approval from the EU, made a final decision to certify the SSO of Ukraine in accordance with European regulations on the security of gas supply.

"Ukrtransgaz" is the second gas storage operator in Europe that has successfully passed certification and confirmed its right to carry out gas storage activities in accordance with the updated rules in the European Union and the Energy Community.

The Gas Storage Operator of Ukraine manages 12 underground gas storage facilities with a total capacity of 30.95 billion m3: Bilche-Volitsko-Uherske PSG (17.05 billion m3, the largest gas storage facility in Ukraine and Europe), Uherske (1.9 billion m3), Dashavske (2.15 billion m3), Oparske (1.92 billion m3), Bogorodchanske (2.3 billion m3), Chervonopartizanske (1.5 billion m3), Solokhivske (1.3 billion m3), Olyshivske (0.31 billion m3, is the first underground storage opened on the territory of Ukraine. It was founded in 1964), Proletarske (1 billion m3), Kegychivske (0.7 billion m3), Krasnopopivske (0.42 billion m3), Vergunske (0.4 billion m3, located in the Luhansk region on the temporarily occupied territory and not involved in the company's activities). It is the largest underground gas storage network in Europe and the third largest in the world.

Most Ukraine's UGS were built on depleted gas fields. 2 of them (Brynske and Olyshivske) were opened on aquifers.

80% of the SSO's storage capacities are concentrated near the western border of Ukraine.