Aliko Dangote, Africa's richest man, is poised for a significant increase in his net worth, estimated at approximately $23 billion, following the recent disclosure of his substantial ownership in the Dangote Petroleum Refinery. A prospectus revealed that Dangote holds an 87.27% stake in the refinery through four separate vehicles. This newly revealed stake, valued at $41.58 billion based on the IPO offer price, significantly boosts his overall fortune, which Billionaires.Africa calculated to be $53.99 billion. This new valuation is substantially higher than the $35.5 billion assigned by the Bloomberg Billionaires Index and $32.5 billion by Forbes prior to the prospectus release.

The Dangote Petroleum Refinery and Petrochemicals FZE is seeking to raise $1.63 billion (2.15 trillion naira) through Nigeria's largest initial public offering. The IPO, which opened on September 14 and closes on October 13, involves offering 4.1 billion new ordinary shares at 525 naira ($0.40) each. Nigeria's Securities and Exchange Commission approved the sale, and trading is expected to commence in November. If the base offer is fully subscribed, Dangote's beneficial stake will slightly decrease to 84.39% from 87.27%.

The IPO's valuation of the refinery at $49.28 billion stands in contrast to Bloomberg's prior valuation of approximately $20 billion, which was based on construction cost. This discrepancy in valuation, particularly for Dangote's holding, is a key driver of the estimated $23 billion increase in his net worth. The sale is a primary issuance, meaning the company will retain the proceeds, which will support long-term growth, operational expansion, and strategic investments. The company also disclosed a net profit of $1.82 billion for the first half of the year, a significant improvement from a loss of $282.1 million in the same period last year.

Financial analysts have offered mixed views on the IPO's valuation but generally agree on its positive impact on Nigeria's capital market. Analysts at Cardinal Stone noted that the refinery's scale should deepen economies of scale and strengthen its cost advantage. However, some caution against conflating the refinery's strategic importance with its equity valuation, with sustaining the implied valuation depending on maintaining strong refining margins. The IPO aims to attract a broad investor base, potentially drawing in up to 10 million retail investors, which could fundamentally change the Nigerian capital market by boosting investor participation.