OPEC+ 21 members
OPEC+ has 21 members; together, today’s OPEC+ members had 11% of the world’s people and 7.1% of its GDP in 2025 (20 of 21 members have figures).
Source: Membership: the groupings’ own member listsMembers as of 10 Nov 2026
Source: World Bank Indicators2025
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Summary
OPEC’s members and ten other oil producers that have coordinated their output since 2016.
Today’s OPEC+ members account for 11% of the world’s people (2025), 7.1% of the world’s GDP (2025; 20 of 21 members have figures), 13% of the world’s military spending (2025; 18 of 21 members have figures) and 14% of the world’s CO2 emissions (2024). Together they mine 43% of the world’s palladium, 5.2% of the world’s tungsten and 5.1% of the world’s nickel (USGS, 2025, estimated). Of its members, 11 are also in OPEC, 4 in APEC, 3 in BRICS and 3 in the G20.
Membership is as each grouping lists it. A grouping’s share of the world adds up its members’ figures, against the sum for every country with a figure.
Source: Membership: the groupings’ own member lists; World Bank; Global Carbon Budget; FAOSTAT; USGSMembers as of 10 Nov 2026
Members
| Nigeria | 238 m | 26% | $291 bn | OPEC |
|---|---|---|---|---|
| Russia | 144 m | 15% | $2.56 tn | BRICS, G20, SCO, APEC, UN Security Council (permanent), CSTO, Eurasian Economic Union, CIS |
| Mexico | 132 m | 14% | $1.83 tn | G20, OECD, APEC, USMCA |
| Iran | 92 m | 10% | $363 bn | BRICS, OPEC, SCO |
| Sudan | 52 m | 5.6% | $60 bn | – |
| Algeria | 47 m | 5.1% | $287 bn | OPEC |
| Iraq | 47 m | 5.1% | $254 bn | OPEC |
| Saudi Arabia | 37 m | 4% | $1.28 tn | BRICS, G20, OPEC |
| Malaysia | 36 m | 3.9% | $472 bn | ASEAN, APEC, RCEP |
| Venezuela | 29 m | 3.1% | $100 bn | OPEC |
| Kazakhstan | 21 m | 2.2% | $306 bn | SCO, CSTO, Eurasian Economic Union, CIS |
| South Sudan | 12 m | 1.3% | – | – |
| Azerbaijan | 10 m | 1.1% | $76 bn | CIS |
| Libya | 7.5 m | 0.8% | $48 bn | OPEC |
| Republic of the Congo | 6.5 m | 0.7% | $16 bn | OPEC |
| Oman | 5.5 m | 0.6% | $110 bn | – |
| Kuwait | 4.9 m | 0.5% | $157 bn | OPEC |
| Gabon | 2.6 m | 0.3% | $21 bn | OPEC |
| Equatorial Guinea | 1.9 m | 0.2% | $13 bn | OPEC |
| Bahrain | 1.6 m | 0.2% | $49 bn | – |
| Brunei | 466,330 | 0.1% | $15 bn | ASEAN, APEC, RCEP |
Source: Membership: the groupings’ own member lists; World BankMembers as of 10 Nov 20262025