According to the latest statistics released by the World Bank in 2024, among the OPEC countries in 1972, Iran ranked first in terms of gross domestic product(GDP), with a total economic volume of $17.15 billion; Venezuela ranked second in terms of GDP, with a total economic volume of $13.98 billion; Nigeria ranked third in terms of GDP, with a total economic volume of $12.27 billion; Saudi Arabia ranked fourth in terms of GDP, with a total economy of $9.66 billion; and Algeria, with a total economy of $6.77 billion, ranked fifth in GDP.
| Rank | Country | GDP |
|---|---|---|
| 1 | Iran | $17.15 billion |
| 2 | Venezuela | $13.98 billion |
| 3 | Nigeria | $12.27 billion |
| 4 | Saudi Arabia | $9.66 billion |
| 5 | Algeria | $6.77 billion |
| 6 | Kuwait | $4.45 billion |
| 7 | Iraq | $4.11 billion |
| 8 | Gabon | $0.43 billion |
| 9 | Republic of Congo | $0.41 billion |
| 10 | Equatorial Guinea | $0.07 billion |