| 2019 | 2020 | 2021 | 2022 | 2023 | Change 23/22 | % Change 23/22 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2023 (%) | |
| Algeria | 39479 | 25603 | 44471 | 70928 | 60374 | -10554 | -14.88 | -14.88 | 48171 | 17786 | 25603 | 70928 | 0.37 | 4.13 |
| Congo | 7854 | 4670 | 8847 | 11727 | 10600 | -1127 | -9.61 | -9.61 | 8740 | 2727 | 4670 | 11727 | 0.31 | 0.73 |
| Equatorial Guinea | 5810 | 4041 | 5851 | 6231 | 5100 | -1131 | -18.15 | -18.15 | 5407 | 866 | 4041 | 6231 | 0.16 | 0.35 |
| Gabon | 8678 | 7275 | 11229 | 12935 | 12174 | -761 | -5.88 | -5.88 | 10458 | 2396 | 7275 | 12935 | 0.23 | 0.83 |
| IR Iran | 51642 | 39413 | 60135 | 95033 | 99690 | 4657 | 4.90 | 4.90 | 69182 | 26808 | 39413 | 99690 | 0.39 | 6.82 |
| Iraq | 88903 | 50613 | 85224 | 127079 | 109705 | -17374 | -13.67 | -13.67 | 92305 | 28775 | 50613 | 127079 | 0.31 | 7.50 |
| Kuwait | 72580 | 47982 | 76177 | 110370 | 87065 | -23305 | -21.12 | -21.12 | 78835 | 22695 | 47982 | 110370 | 0.29 | 5.96 |
| Libya | 29058 | 9312 | 33417 | 37686 | 36343 | -1343 | -3.56 | -3.56 | 29163 | 11580 | 9312 | 37686 | 0.40 | 2.49 |
| Nigeria | 67481 | 37984 | 46868 | 68119 | 82857 | 14738 | 21.64 | 21.64 | 60662 | 18023 | 37984 | 82857 | 0.30 | 5.67 |
| Saudi Arabia | 285860 | 182848 | 286502 | 445881 | 370974 | -74907 | -16.80 | -16.80 | 314413 | 99230 | 182848 | 445881 | 0.32 | 25.38 |
| United Arab Emirates | 404046 | 351258 | 425149 | 532797 | 570169 | 37372 | 7.01 | 7.01 | 456684 | 91586 | 351258 | 570169 | 0.20 | 39.00 |
| Venezuela | 21017 | 6682 | 10138 | 17686 | 16910 | -776 | -4.39 | -4.39 | 14487 | 5886 | 6682 | 21017 | 0.41 | 1.16 |
| Total OPEC | 1082407 | 767682 | 1094008 | 1536469 | 1461960 | -74510 | -4.85 | -4.85 | 1188505 | 313503 | 767682 | 1536469 | 0.26 | 100.00 |