'Viet-Russo Joint venture Vietsovpetro',[5]Russian: Совместное российско-вьетнамское предприятие «Вьетсовпетро», romanized: Sovmestnoye rossiysko-v'yetnamskoye predpriyatiye «V'yetsovpetro», lit.

'Joint Russian-Vietnamese venture «Vietsovpetro»') is a joint Russo-Vietnamese enterprise for oil and gas exploration headquartered in Vung Tau, Vietnam.

[6] According to the VNR500 (Top 500) ranking, Vietsovpetro was Vietnam's 8th largest company.

[7][8] It was established in 1981 under an inter-governmental agreement between the JSC Zarubezhneft of the Soviet Union (later inherited by the Russian Federation) and Vietnam's state-owned Petrovietnam, with each side holding half of stake.

[9] On 10 December 2010, VietsovPetro agreed to extend its cooperation with JSC Zarubezhneft for 20 years until 2030.