VNU Journal of Economics and Business, Vol 1, No 3 (2021) 18 27 18 Original Article The Influence of Financial Structure on Business Performance of Listed Oil and Gas Companies in Vietnam Nguyen Van Anh Duc*, Than Thach Thao, Dinh Viet Giang, Bui Thanh Hien National Economics University, No 207 Giai Phong, Dong Tam, Hai Ba Trung District, Hanoi, Vietnam Received 27 May 2021 Revised 25 August 2021; Accepted 10 October 2021 Abstract The research investigates the influences of financial structure o[.]