Tony Elumelu Named Seplat Energy Chairman as New CEO Takes Over

One of Africa’s most respected business minds is taking the chair at one of Nigeria’s biggest energy companies. And the timing could not be more deliberate. Seplat Energy Plc has announced a major leadership transition that will see billionaire investor Tony Elumelu assume the role of Chairman from January 1, 2027, while veteran energy executive Effiong Okon takes over as Chief Executive Officer from August 1, 2026. The changes, disclosed in a corporate filing to the Nigerian Exchange Limited, form part of a structured succession plan designed to position Seplat for the next phase of its growth under its Roadmap 2030 agenda.

Who Is Taking Over and Why It Matters

Tony Elumelu needs little introduction. The founder and chairman of Heirs Holdings, the UBA Group chairman, and the driving force behind the Tony Elumelu Foundation, which has funded more than 27,000 African entrepreneurs, is one of the most consequential business figures on the continent. His arrival at Seplat is not a ceremonial appointment. Heirs Energies already owns 20.07 per cent of Seplat, acquired in a transaction valued at $500 million. Consequently, Elumelu moves to the chairmanship with significant skin already in the game.

Effiong Okon brings more than 35 years of energy sector experience to the CEO role. He previously served as Managing Director of the ANOH Gas Processing Company, where he led the landmark project to its first gas production in January 2026. Furthermore, his background at Royal Dutch Shell gives him the international operational expertise that Seplat’s expanding portfolio demands.

What Is Changing and When

Current CEO Roger Brown will retire on July 31, 2026, ending a 13-year tenure that included major acquisitions, Eland Oil & Gas in 2019 and the transformative MPNU deal in 2024. Current Chairman Udoma Udo Udoma steps down on December 31, 2026. The transitions are sequenced to ensure stability and continuity.

Elumelu has stated that Seplat’s governance structure and execution culture align with his values and that he is committed to delivering increased value to shareholders and stakeholders. That language, measured, strategic, long-term, reflects the tone of a man who has built institutions, not just businesses.

What This Means for Nigeria’s Energy Sector

Seplat Energy is one of Nigeria’s largest indigenous oil and gas companies, dual-listed in Lagos and London. Under Brown’s tenure, it grew from a mid-tier operator into a significant industry player. Under Okon and Elumelu, the company plans to accelerate its upstream gas business and deepen its role in Nigeria’s energy transition agenda.

For the Nigerian energy sector broadly, having a figure of Elumelu’s stature at the helm of a major indigenous energy company sends a strong signal, that Nigerian capital and Nigerian leadership are capable of running world-class energy businesses. That signal matters beyond the boardroom.