The Nigerian industrialist’s fortune has jumped to an estimated $51.3 billion after Forbes revalued his stake in the Dangote Refinery following a $2.5 billion private placement.

Nigerian billionaire and Africa’s richest man, Aliko Dangote, has surged into the world’s top 40 richest people, according to Forbes’ latest estimate, after a major revaluation of his stake in the Dangote Refinery.

As of September 14, 2026, Forbes puts Dangote’s net worth at approximately $51.3 billion, placing him 36th on the global billionaire rankings.

The latest valuation represents a dramatic increase from the roughly $31 billion fortune attributed to Dangote just a few weeks ago, when he was ranked around 76th among the world’s wealthiest individuals.

The sharp rise is largely linked to how Forbes has revalued Dangote’s interest in his Lagos-based oil refinery following a $2.5 billion private placement in July.

The transaction effectively provided a new market-based valuation for the refinery, significantly increasing the paper value of Dangote’s stake.

Importantly, the increase does not mean Dangote personally received an additional $20 billion in cash or sold that amount of shares. Rather, the valuation of the company and his ownership interest rose substantially, pushing up his estimated net worth.

The Dangote Refinery is now being valued at around $42 billion, according to the figures underpinning Forbes’ assessment.

Africa’s biggest refinery drives valuation

The development comes as the Dangote Refinery continues to expand its role in Nigeria’s petroleum industry and attract significant investor attention.

On the same day as the latest valuation development, the refinery opened what has been described as Africa’s largest initial public offering, involving approximately 4.1 billion shares priced at ₦525 each.

The offering has generated strong interest from investors, with reports indicating that some investment platforms experienced difficulties handling the surge in demand.

If the share offering performs strongly and the refinery's valuation rises further, Dangote's position on the global wealth rankings could climb even higher.

Bloomberg has taken a more conservative approach to Dangote's current wealth, estimating his fortune at around $35.3 billion. However, the financial news organisation has indicated that his net worth could rise to approximately $58 billion if the refinery's share offering is successfully completed and its valuation reflects the new market price.

The difference between the Forbes and Bloomberg figures highlights how billionaire wealth estimates can vary depending on how privately held assets and companies are valued.

Dangote remains Africa’s richest man

Despite the differences in estimates, Dangote remains firmly established as Africa’s richest individual.

His business empire spans cement, oil and gas, fertiliser, food production and other major industries, with the Dangote Group operating across several African markets.

The Dangote Refinery, located in the Lekki area of Lagos, is central to the latest increase in his wealth. With a designed capacity of 650,000 barrels per day, the facility is one of the largest single-train refineries in the world and represents one of the biggest private-sector investments in Africa.

Dangote's latest rise also places him in a league dominated by the world's biggest technology, luxury, investment and industrial fortunes.

Forbes' latest estimate means that, on paper, Dangote is now wealthier than many prominent billionaires who have occupied the global top 40 in recent years.

His rapid movement up the rankings underscores how dramatically the valuation of a major private asset can affect billionaire wealth estimates.

For Dangote, the development is particularly striking because the jump has occurred without an equivalent cash windfall. Instead, the market has effectively placed a much higher value on one of the most important assets in his business empire.

With the refinery's share offering now under scrutiny, investors will be watching closely to see whether the new valuation holds—and whether Dangote's fortune could move even closer to the $58 billion projection.