Nigerian billionaire Tony Elumelu’s Seplat stake tops $1 billion on share rally

At a time when investors are closely watching Africa’s energy and financial sectors, Nigerian billionaire businessman and philanthropist Tony Elumelu has added another milestone to a career long defined by disciplined expansion and calculated bets. Known for building influence across banking, power, and investment, the Nigerian billionaire has now seen his holding in Seplat Energy Plc cross the $1 billion mark, underscoring both the scale of his December 2025 acquisition and the sharp rise in the company’s shares this year.

Elumelu’s Seplat stake tops $1 billion 

The gain is rooted in a transaction that, at the time, stood out for its size and local backing. Through Heirs Energies, part of his family-owned investment firm Heirs Holdings, Elumelu acquired a 20.07 percent stake in Seplat for $500 million, securing his position as the company’s largest shareholder. Since then, the value of that stake has climbed by N684.59 billion ($509 million), rising from N699.4 billion ($496.5 million) at the start of the year to N1.38 trillion ($1.005 billion), according to market data tracked by Shore.Africa.

The increase mirrors a broader rally in Seplat’s shares on the Nigerian Exchange. The stock has advanced more than 97 percent this year, moving from N5,610 ($4.1) per share on Jan. 1 to N11,495 ($8.35), breaking through the N10,000 threshold for the first time among Nigerian-listed equities. That surge has lifted the company’s market capitalization to N7.08 trillion ($5.14 billion), placing it firmly among the country’s most valuable publicly traded firms.

The “Elumelu effect”: $500 million deal drive Seplat growth, earnings rise 

Market participants on the London and Nigerian stock exchanges point to a mix of factors behind the buying interest. Higher crude oil prices have played a role, alongside stronger financial results and expectations tied to Nigeria’s planned FTSE Russell upgrade to Frontier Market status. There is also what investors often describe as the “Elumelu effect,” a reference to his record at United Bank for Africa, Heirs Holdings, and Transnational Corporation Plc, where he has built a reputation for steady execution and long-term value creation.

His entry into Seplat also brought a shift in ownership structure that goes beyond market performance. The $500 million deal ranks among the largest locally backed acquisitions in Africa’s oil and gas sector, signaling a growing role for indigenous capital not just in operations but in ownership. Elumelu on Jan. 22 joined Seplat Energy’s board as a non-executive director, stepping in after the resignation of Maurel & Prom nominee Olivier Cleret de Langavant.

Operationally, Seplat has shown signs of improvement. The company reported profit of $37.9 million for the first quarter of 2026, up from $23.3 million a year earlier, supported by firmer oil prices and stronger operational delivery. Revenue rose 4 percent to $840.7 million from $809.3 million in the same period of 2025, helped by increased natural gas liquids output and improved pricing. After adjustments for overlift positions, revenue stood at $748.7 million, slightly below the prior year due to timing differences in cargo deliveries.

Seplat assets grow; Elumelu crosses milestone

Seplat’s asset base remains central to its appeal. With total assets rising to $6.16 billion, the company holds a portfolio spanning 11 petroleum mining leases, 17 petroleum prospecting licenses, and five oil mining leases across onshore and shallow water assets in the Niger Delta. It operates alongside partners that include the Nigerian government and maintains interests in key export infrastructure such as the Qua Iboe terminal, Yoho FSO, and the Bonny River Terminal, as well as offshore natural gas liquids recovery plants at Oso and EAP.

For Elumelu, whose business interests stretch from banking to power and investment through leading family-owned pan-African investment company, Heirs Holdings, the crossing of the $1 billion mark in Seplat is less about a single trade and more about consistency. From United Bank for Africa to Transnational Corporation Plc, and now Seplat, the pattern is familiar: large positions, long-term thinking, and a focus on sectors central to economic growth.