Question: when did nigeria become a member of opec
Answer: - 16,385,068 283,560 548,421 8,273,000,000 Equatorial Guinea Western Africa 2017 -- 1,221,490 28,051 227,000 1,100,000,000 Gabon Western Africa 1975 -- 1995 , 2016 -- 1,979,786 267,667 210,820 2,000,000,000 Iran Middle East 1960 -- 80,277,428 1,648,000 3,990,956 157,530,000,000 Iraq Middle East 1960 -- 37,202,572 437,072 4,451,516 143,069,000,000 Kuwait Middle East 1960 -- 4,052,584 17,820 2,923,825 101,500,000,000 Libya North Africa 1962 -- 6,293,253 1,759,540 384,686 48,363,000,000 Nigeria Western Africa 1971 -- 185,989,640 923,768 1,999,885 37,070,000,000 Qatar Middle East 1961 -- 2,569,804 11,437 1,522,902 25,244,000,000 Saudi Arabia Middle East 1960 -- 32,275,687 2,149,690 10,460,710 266,578,000,000 United Arab Emirates Middle East 1967 -- 9,269,612 83,600 3,106,077 97,800,000,000 Venezuela Americas 1960 -- 31,568,179 912,050 2,276,967 299,953,000,000 OPEC Total 478,498,000 12,150,695 35,221,740 1,209,103,000,000 World Total 7,588,065,000 510,072,000 80,622,287 1,650,585,000,000 OPEC Percent 6 % 2 % 44 % 73 %