| 2019 | 2020 | 2021 | 2022 | 2023 | Change 23/22 | % Change 23/22 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2023 (%) | |
| Algeria | 50488 | 40962 | 43551 | 45999 | 50444 | 4445 | 9.66 | 9.66 | 46289 | 4209 | 40962 | 50488 | 0.09 | 4.16 |
| Congo | 4944 | 3279 | 5696 | 7356 | 5976 | -1380 | -18.75 | -18.75 | 5450 | 1495 | 3279 | 7356 | 0.27 | 0.49 |
| Equatorial Guinea | 4971 | 3669 | 4351 | 4297 | 4200 | -97 | -2.26 | -2.26 | 4298 | 464 | 3669 | 4971 | 0.11 | 0.35 |
| Gabon | 3712 | 3454 | 3353 | 3775 | 3669 | -107 | -2.82 | -2.82 | 3593 | 180 | 3353 | 3775 | 0.05 | 0.30 |
| IR Iran | 59969 | 49479 | 56700 | 87823 | 94108 | 6284 | 7.16 | 7.16 | 69616 | 19980 | 49479 | 94108 | 0.29 | 7.76 |
| Iraq | 72283 | 54722 | 50707 | 69162 | 86755 | 17593 | 25.44 | 25.44 | 66726 | 14480 | 50707 | 86755 | 0.22 | 7.15 |
| Kuwait | 61135 | 44015 | 48954 | 55909 | 64681 | 8772 | 15.69 | 15.69 | 54939 | 8506 | 44015 | 64681 | 0.15 | 5.33 |
| Libya | 22694 | 12912 | 16957 | 19925 | 21917 | 1993 | 10.00 | 10.00 | 18881 | 4005 | 12912 | 22694 | 0.21 | 1.81 |
| Nigeria | 93969 | 71285 | 51667 | 79274 | 101140 | 21866 | 27.58 | 27.58 | 79467 | 19492 | 51667 | 101140 | 0.25 | 8.34 |
| Saudi Arabia | 218975 | 182184 | 213516 | 258213 | 291565 | 33352 | 12.92 | 12.92 | 232890 | 42497 | 182184 | 291565 | 0.18 | 24.04 |
| United Arab Emirates | 321525 | 273691 | 347532 | 417032 | 470477 | 53444 | 12.82 | 12.82 | 366051 | 78038 | 273691 | 470477 | 0.21 | 38.79 |
| Venezuela | 11071 | 9785 | 11911 | 17537 | 18033 | 496 | 2.83 | 2.83 | 13667 | 3838 | 9785 | 18033 | 0.28 | 1.49 |
| Total OPEC | 925734 | 749437 | 854895 | 1066303 | 1212964 | 146661 | 13.75 | 13.75 | 961866 | 181543 | 749437 | 1212964 | 0.19 | 100.00 |