September 2,2023. THE Organisation of Petroleum Exporting Country, OPEC, has identified Nigeria, a leading African oil producer, as the least refining member with an average equivalent of 10,600 barrels per day, bpd in five years. The nation refined an equivalent of 33,000 bpd, 8,000 bpd, 1,000 bpd, 5,000 bpd and 6,000 bpd in 2018, 2019, |