| 2020 | 2021 | 2022 | 2023 | 2024 | Change 24/23 | % Change 24/23 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2024 (%) | |
| Algeria | 12.20 | 12.20 | 12.20 | 12.20 | 12.20 | 0.00 | 0.00 | 0.00 | 12.20 | 0.00 | 12.20 | 12.20 | 0.00 | 0.98 |
| Congo | 1.81 | 1.81 | 1.81 | 1.81 | 1.81 | 0.00 | 0.00 | 0.00 | 1.81 | 0.00 | 1.81 | 1.81 | 0.00 | 0.15 |
| Equatorial Guinea | 1.10 | 1.10 | 1.10 | 1.10 | 1.10 | 0.00 | 0.00 | 0.00 | 1.10 | 0.00 | 1.10 | 1.10 | 0.00 | 0.09 |
| Gabon | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 0.00 | 0.00 | 0.00 | 2.00 | 0.00 | 2.00 | 2.00 | 0.00 | 0.16 |
| IR Iran | 208.60 | 208.60 | 208.60 | 208.60 | 208.60 | 0.00 | 0.00 | 0.00 | 208.60 | 0.00 | 208.60 | 208.60 | 0.00 | 16.80 |
| Iraq | 145.02 | 145.02 | 145.02 | 145.02 | 145.02 | 0.00 | 0.00 | 0.00 | 145.02 | 0.00 | 145.02 | 145.02 | 0.00 | 11.68 |
| Kuwait | 101.50 | 101.50 | 101.50 | 101.50 | 101.50 | 0.00 | 0.00 | 0.00 | 101.50 | 0.00 | 101.50 | 101.50 | 0.00 | 8.18 |
| Libya | 48.36 | 48.36 | 48.36 | 48.36 | 48.36 | 0.00 | 0.00 | 0.00 | 48.36 | 0.00 | 48.36 | 48.36 | 0.00 | 3.90 |
| Nigeria | 36.91 | 37.05 | 36.97 | 37.50 | 37.50 | 0.00 | 0.00 | 0.40 | 37.19 | 0.29 | 36.91 | 37.50 | 0.01 | 3.02 |
| Saudi Arabia | 267.08 | 267.19 | 267.19 | 267.23 | 267.20 | -0.03 | -0.01 | 0.01 | 267.18 | 0.06 | 267.08 | 267.23 | 0.00 | 21.52 |
| United Arab Emirates | 107.00 | 111.00 | 113.00 | 113.00 | 113.00 | 0.00 | 0.00 | 1.37 | 111.40 | 2.61 | 107.00 | 113.00 | 0.02 | 9.10 |
| Venezuela | 303.56 | 303.47 | 303.22 | 303.01 | 303.22 | 0.21 | 0.07 | -0.03 | 303.30 | 0.22 | 303.01 | 303.56 | 0.00 | 24.42 |
| Total OPEC | 1235.15 | 1239.30 | 1240.97 | 1241.33 | 1241.51 | 0.18 | 0.01 | 0.13 | 1239.65 | 2.67 | 1235.15 | 1241.51 | 0.00 | 100.00 |