Nguyen Thi Thuy Tien, Doan Linh and Nguyen Trung Khuong 2020. Proposing some orientations to revise and supplement the development strategy of Vietnam Oil and Gas Group. Petrovietnam Journal. 7, (Jul. 2020), 19 - 24. DOI:https://doi.org/10.25073/petrovietnam journal.v7i0.323.