Parts 1 and 2 of this series examined the DRC's mineral vault and South Africa's platinum economy. Part 3 turns to the continent's most storied — and most cautionary — resource economy, at precisely the moment its fifty-year script is being rewritten.

The Endowment

Nigeria's hydrocarbon wealth is immense by any standard: roughly 37 billion barrels of proven oil reserves — second in Africa only to Libya — and about 209 trillion cubic feet of natural gas, the largest reserves on the continent and among the top ten globally. Since the first commercial discovery at Oloibiri in 1956, oil has generated over $600 billion in state revenue and, for most of that time, over 80% of export earnings — the concentration risk we flagged in our ranking of Africa's richest countries by natural resources.

Yet for decades the sector's defining statistic was an absurdity: the country that exported two million barrels of crude a day imported almost all of its refined fuel. Four state-owned refineries rusted through billions in failed turnarounds while Nigeria swapped crude for petrol on the high seas and subsidised the difference — a fiscal wound that at its worst consumed more than the federal budgets for health and education combined.

Dangote: The $20 Billion Answer

The response, when it came, came from the private sector. The Dangote Refinery at Lekki, outside Lagos — built by Aliko Dangote at a cost of roughly $20 billion — is the largest single-train refinery ever constructed: 650,000 barrels per day, more than Nigeria's entire historical refining capacity combined. Production began in 2024, and its ramp-up has been the single most consequential event in African downstream energy in a generation.

The effects are structural, not cosmetic. Nigeria's fuel-import bill — for years among the largest line items draining its foreign reserves — is being replaced by refined-product exports to West Africa and beyond. Petrol subsidy economics, the third rail of Nigerian politics, changed permanently once fuel was priced from Lekki rather than Rotterdam. And the refinery gives Nigerian crude a guaranteed domestic buyer, insulating a share of production from the discounts and freight of the export market.

There is a wider lesson here that runs through this entire series: the difference between exporting raw materials and processing them at home is the difference between renting out your wealth and owning it. What the DRC is attempting with cobalt quotas and South Africa hopes for with hydrogen catalysis, Nigeria has now demonstrated at industrial scale with refining.

The Great Handover: Majors Out, Independents In

While Dangote built, the international majors retreated. After decades of pipeline vandalism, crude theft measured in hundreds of thousands of barrels per day at its peak, community litigation, and Niger Delta insecurity, Shell, ExxonMobil, Eni, and TotalEnergies have all sold down or exited their Nigerian onshore and shallow-water positions — retreating to the deepwater fields offshore, where barrels are costlier but untouchable.

The buyers are the story: Nigerian independents. Seplat Energy's acquisition of ExxonMobil's Mobil Producing Nigeria transformed it into one of the country's largest producers overnight. Renaissance Africa took over Shell's historic onshore business. Oando, Chappal, and others absorbed the rest. It amounts to the largest transfer of petroleum assets into African ownership in the industry's history — with all of its upside (aligned incentives, local operatorship) and all of its burden (the security and environmental liabilities the majors were glad to shed).

The Decade of Gas

Nigeria's government calls this the "Decade of Gas," and the label is more than a slogan. Gas is the endowment Nigeria has barely monetised: NLNG's Bonny Island plant made the country a top-ten LNG exporter, but vast associated gas is still flared, and domestic gas-to-power remains far below potential. The pipeline of projects — NLNG's Train 7 expansion, floating LNG ventures, the Ajaokuta–Kaduna–Kano pipeline, and gas-for-industry programmes — represents the most credible path to diversifying export earnings without leaving the energy sector at all. In a world that treats gas as the transition fuel, holding Africa's largest reserves is a strategic position, not a legacy one.

How to Get Exposure

The risk ledger remains serious: currency volatility (the theme of our GDP ranking, where naira devaluation moved Nigeria from first to fourth), production still below quota, security costs, and the governance history that made "oil curse" a textbook term with a Nigerian case study. Position accordingly.

The Bigger Picture

Nigeria spent fifty years as the textbook example of resource wealth without resource benefit. What makes this moment different is that the correction is not a policy paper — it is poured concrete at Lekki, signed asset-transfer agreements in the Delta, and LNG trains under construction at Bonny. The paradox that defined Africa's largest energy economy is being dismantled in real time, by Nigerian capital, on Nigerian soil. Whether the state's fiscal machinery converts that into broad prosperity is the question the next decade answers — and one we will keep tracking in this series and in the Africa 30 Index.

Sources & Methodology

Reserve and production figures reference OPEC and NUPRC data and company disclosures (Seplat Energy, NNPC, Dangote Industries, NLNG). Historical revenue and subsidy figures reference IMF and World Bank Nigeria assessments. Figures are stated as approximations and ranges. Company mentions are not recommendations. Part 4 of the Resource Wealth Series, Zimbabwe and Africa's Lithium Belt, is now published. Nothing here constitutes investment advice.