Seplat Energy Plc has announced a major leadership transition, appointing leading African businessman and investor, Tony Elumelu, as its next Chairman and naming Engr. Effiong Okon as Chief Executive Officer.

The appointments come as part of moves by Seplat to signal the beginning of a new phase in the company’s growth and expansion strategy.

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The leadership changes also follow the recent acquisition by Heirs Energies Limited of a 20.07 per cent stake in Seplat Energy, a transaction valued at about $500 million that made the company the single largest shareholder in the indigenous energy giant.

The acquisition effectively positions Elumelu, founder of Heirs Holdings and Chairman of Heirs Energies, as the most influential shareholder in Seplat and paves the way for his elevation to the board’s top position.

According to a notice filed with the Nigerian Exchange Limited (NGX) and signed by the Company Secretary, Edith Onwuchekwa, Elumelu will assume the role of Chairman in January 2027, succeeding Senator Udoma Udo Udoma, while Okon will take over as Chief Executive Officer effective August 1, 2026.

The company said the appointments form part of a broader succession and leadership transition programme designed to strengthen governance and position Seplat Energy for its next stage of growth in Nigeria’s evolving energy landscape.

Elumelu’s emergence as Chairman comes at a time when his strategic investment in Seplat and broader leadership in Africa’s energy sector are attracting international attention. The businessman recently received global recognition after Heirs Energies’ landmark US$750 million dual-tranche Senior Secured Reserve-Based Lending facility was named Best Oil & Gas Deal of the Year at the 2026 EMEA Finance Project Finance Awards in London.

The award-winning financing, arranged in partnership with the African Export-Import Bank (Afreximbank), was one of the largest funding transactions ever secured by an indigenous African energy company and was widely viewed as a vote of confidence in the long-term growth prospects of Heirs Energies and its expanding footprint in the continent’s energy industry.

Industry observers note that the successful financing deal strengthened Heirs Energies’ balance sheet ahead of its strategic acquisition of the significant Seplat stake, further consolidating Elumelu’s position as one of the most influential investors in Africa’s energy sector.

Seplat said Elumelu brings extensive experience in corporate governance, institution building and value creation, qualities expected to support the company’s ambition of becoming a globally competitive and resilient energy business.

As founder and chairman of Heirs Holdings, Elumelu oversees investments spanning energy, banking, insurance, technology, healthcare, hospitality and real estate. He also chairs Transcorp Group and United Bank for Africa (UBA) Group, two of Africa’s most prominent corporate institutions.

The appointment of Engr. Okon as Chief Executive Officer signifies his profile as a seasoned industry professional with deep technical and operational expertise. He is expected to lead the execution of Seplat’s growth strategy, including the integration and optimization of its enlarged upstream asset portfolio.

The leadership changes come as Seplat continues to consolidate its position as Nigeria’s leading indigenous energy company, with growing interests in oil and gas production, domestic gas supply and energy infrastructure.

Daily Champion reports analysts as saying that the combination of Elumelu’s strategic vision and capital allocation expertise, alongside Okon’s operational experience, could provide a strong platform for Seplat to deepen its role in Nigeria’s energy transition agenda while expanding shareholder value.

With a new chairman-designate, a new chief executive and a dominant shareholder committed to long-term investment, Seplat appears poised to enter a defining chapter in its corporate evolution.