Russia is the sole exporter of natural gas to Bulgaria. Supplies began in 1974. 

Bulgaria’s natural gas consumption in 2017 was around 3.47 bcm, including imports of 3.33 bcm (fully covered by supplies from Russia), and including 184 mcm of gas for compressor stations. As of December 31, 2017, the cumulative volume of gas supplied to Bulgaria since the start of deliveries was around 173 bcm.

Gazprom Export’s main partner on the Bulgarian market is state-owned enterprise Bulgargaz EAD, that is a 100% subsidiary of the Bulgarian Energy Holding EAD. The enterprise was founded in 1974.

On November 15, 2012, Gazprom Export and Bulgargaz EAD signed a new long-term gas supply contract for up to 2.9 bcma. The contract covers the supply of natural gas from Russia to Bulgaria from January 1, 2013 to December 31, 2022.

In December 2006, Gazprom Export and Bulgargaz signed a Memorandum on the further development of Russian-Bulgarian relations in gas sector. The Memorandum extended the contract for Russian natural gas transport via Bulgaria to other countries until 2030, while keeping booked transit volumes to 17.8 bcma.