The start of cooperation with Romania’s gas industry involved the development of the Orenburg gas condensate field and the construction of the Orenburg-Western Soviet Border gas pipeline, as stipulated in the 1974 General Agreement among member states of the Council for Mutual Economic Assistance (CMEA).

Natural gas has been supplied to Romania since 1979, with market share amounting to 20-25% of total consumption in various years. Gas from the Russian Federation is supplied under long-term contracts with WIEE and Conef Energy for natural gas supply to Romania through 2030.

As at January 1, 2017, a total of  128.37 bcm had been supplied to Romania since the supplies began, including 1.48 bcm in 2016.