Organization of the Petroleum Exporting Countries (OPEC) has 12 member countries; 6 in the Middle East, 4 in Africa, and 2 in South America.
List of OPEC Member Countries
| OPEC Country Name | Continent/Region | Joined OPEC | Population | Area (sq km) | Oil Production (bbl/day) |
|---|
| Saudi Arabia | Middle East | 1960 | 26534504 | 2149690 | 8800000 |
| Ecuador | South America | 2007 | 15223680 | 283560 | 485700 |
| Iran | Middle East | 1960 | 78868711 | 1648000 | 4172000 |
| United Arab Emirates | Middle East | 1967 | 5314317 | 83600 | 2798000 |
| Kuwait | Middle East | 1960 | 2646314 | 17820 | 2494000 |
| Venezuela | South America | 1960 | 28047938 | 912050 | 2472000 |
| Iraq | Middle East | 1960 | 31129225 | 437072 | 2399000 |
| Nigeria | Africa | 1971 | 170123740 | 923768 | 2211000 |
| Libya | Africa | 1962 | 5613380 | 1759540 | 2210000 |
| Algeria | Africa | 1969 | 37367226 | 2381740 | 2125000 |
| Angola | Africa | 2007 | 18056072 | 1246700 | 1948000 |
| Qatar | Middle East | 1961 | 1951591 | 11437 | 1213000 |
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