Bulgartransgaz EAD was registered on 15.01.2007 in Sofia city court as combined operator with business activity transmission and storage of natural gas, maintenance, operation, management and development of underground gas storage.

The history of the Company dates back to 30.12.1973 when the state company Oil and Gas was registered, renamed in December 1975 to Gazosnabdiyavane.

At the beginning of 1990 the Company was renamed to Bulgargaz and by virtue of Decree of the Council of Ministers dated 12.05.1993, it was restructured to sole joint-stock company.

This status was preserved by Bulgargaz EAD by the end of 2006 when in compliance with the requirements of the Energy Act of the Republic of Bulgaria and Directive 2003/55/ЕC of the European Parliament and of the Council concerning common rules for the internal market in natural gas, Bulgargaz EAD has undergone unbundling, both organizationally and legally.

On 15.01.2007 Sofia city court entered the restructuring of Bulgargaz EAD into Bulgargaz Holding EAD including Bulgartransgaz EAD, Bulgargaz EAD and Bulgartel EAD.

The capital of the three subsidiaries is 100% owned by Bulgargaz Holding EAD.

On 18.09.2008, by virtue of Decision of the Minister of Economy and Energy, Bulgarian Energy Holding EAD (BEH EAD) was incorporated by renaming Bulgargaz Holding EAD which is a 100% state-owned and with principal the Ministry of Economy and Energy.

Bulgartransgaz EAD is successor of the traditions and experience gathered as of the establishment of the gas sector in

Actual natural gas market development in Bulgaria started in the mid 70s of last century with the construction of the national gas transmission system for natural gas supplies from the former USSR; the gas industry beginning dates back to 1963, marked by the discovery of the gas condensate natural gas field near the village of Chiren.


August 7,1974, 4:30 p.m. - the first Russian gas quantities flowed on Bulgarian territory

September 1, 1974 - the gas pipeline Soviet Union - Bulgaria was launched

1988 - the first natural gas quantities to Turkey were delivered

1994 - the first natural gas quantities to Greece were delivered

1995 - the first natural gas quantities to North Macedonia were delivered

        2017 - the first natural gas quantities to Romania were delivered through the Interconnection Bulgaria-Romania

        2017 - the interconnection point between the Bulgarian and Greek gas transmission networks IP Kulata/Sidirokastro has been reversed

        2018 - first commercial natural gas deliveries from Greece to Bulgaria

        2019 - first deliveries of LNG to Bulgaria through IP Kulata/Sidirokastro

        2019 - The natural gas trading platform of Balkan Gas hub EAD has been launched

        2020 - the interconnection point between the Bulgarian and Romanian gas transmission networks IP Negru Voda 1/Kardam has been reversed

        2021 - the first natural gas quantities to Serbia were delivered