| 2019 | 2020 | 2021 | 2022 | 2023 | Change 23/22 | % Change 23/22 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2023 (%) | |
| Algeria | 171750 | 145684 | 163421 | 225547 | 246800 | 21253 | 9.42 | 9.42 | 190640 | 43276 | 145684 | 246800 | 0.23 | 7.43 |
| Congo | 13977 | 11485 | 13387 | 13961 | 14423 | 462 | 3.31 | 3.31 | 13447 | 1157 | 11485 | 14423 | 0.09 | 0.43 |
| Equatorial Guinea | 11364 | 9894 | 12269 | 11767 | 10284 | -1483 | -12.60 | -12.60 | 11116 | 1000 | 9894 | 12269 | 0.09 | 0.31 |
| Gabon | 16824 | 15337 | 20229 | 21076 | 20524 | -552 | -2.62 | -2.62 | 18798 | 2554 | 15337 | 21076 | 0.14 | 0.62 |
| IR Iran | 241658 | 195528 | 289294 | 347446 | 403526 | 56080 | 16.14 | 16.14 | 295490 | 82613 | 195528 | 403526 | 0.28 | 12.14 |
| Iraq | 233636 | 182455 | 209692 | 286640 | 253882 | -32759 | -11.43 | -11.43 | 233261 | 40036 | 182455 | 286640 | 0.17 | 7.64 |
| Kuwait | 136189 | 107505 | 141779 | 182809 | 159337 | -23472 | -12.84 | -12.84 | 145524 | 27962 | 107505 | 182809 | 0.19 | 4.80 |
| Libya | 69280 | 46921 | 35224 | 43289 | 45011 | 1722 | 3.98 | 3.98 | 47945 | 12731 | 35224 | 69280 | 0.27 | 1.35 |
| Nigeria | 406176 | 430197 | 436450 | 470332 | 500149 | 29817 | 6.34 | 6.34 | 448661 | 36796 | 406176 | 500149 | 0.08 | 15.05 |
| Saudi Arabia | 838565 | 734271 | 874156 | 1108572 | 1067583 | -40989 | -3.70 | -3.70 | 924629 | 158478 | 734271 | 1108572 | 0.17 | 32.13 |
| United Arab Emirates | 417990 | 349473 | 415179 | 507064 | 504173 | -2891 | -0.57 | -0.57 | 438776 | 66903 | 349473 | 507064 | 0.15 | 15.17 |
| Venezuela | 73003 | 43788 | 57666 | 92104 | 97116 | 5012 | 5.44 | 5.44 | 72735 | 22554 | 43788 | 97116 | 0.31 | 2.92 |
| Total OPEC | 2630412 | 2272539 | 2668746 | 3310607 | 3322808 | 12201 | 0.37 | 0.37 | 2841022 | 460933 | 2272539 | 3322808 | 0.16 | 100.00 |