GDP ranking of OPEC countries in 2021

According to the latest statistics released by the World Bank in 2024, among the OPEC countries in 2021, Saudi Arabia ranked first in terms of gross domestic product(GDP), with a total economic volume of $833.54 billion; Nigeria ranked second in terms of GDP, with a total economic volume of $440.78 billion; Iraq ranked third in terms of GDP, with a total economic volume of $207.89 billion; Algeria ranked fourth in terms of GDP, with a total economy of $167.98 billion; and Angola, with a total economy of $72.55 billion, ranked fifth in GDP.