Report Chronicles Seplat’s Rise, Power Struggles and Succession

The Debriefing, a publisher of deep-dive corporate profiles, has released the second edition in a series of long-form histories of the companies that shape Nigeria’s economy. Board Games: White Knights and Dark Strategies at Seplat Energy tells the story of the country’s largest independent oil company: How it was built and scaled, how control passed from its founders to Tony Elumelu, what the coming years hold under Effiong Okon, its new chief executive, and its plans to grow output by half.

It stated that, “The deals, personalities, and performance of Nigeria’s great companies receive regular coverage in the media, but few have had their stories told whole. The founding bargain, the money and where it came from, the rules the founders wrote and how they were later used, the succession that went to plan and the one that did not: these are the things that decide a company’s fortunes, and they are rarely set down in one place.

“The Debriefing writes them from the public record, with every figure sourced, in a form that an executive, an investor or a regulator can read in an afternoon and keep. Over time the series is intended to form a body of reference on Nigerian enterprise, of the kind from which business schools write their cases and from which the next generation of founders, directors and regulators can learn what worked, what failed, and why,” it added.

Obiora Tabansi Onyeaso, the writer, followed Seplat from its founding in 2009 by ABC Orjiako, a prize-winning surgeon turned dealmaker, and Austin Avuru, one of Nigeria’s foremost petroleum geologists, through its dual listing in London and Lagos to its position today as the country’s leading indigenous producer. 

He also covered the third party in the founding bargain, the French company Maurel & Prom and its founder Jean-François Hénin, whose early capital and credibility won Seplat its first blocks. M&P held the deciding vote in every boardroom dispute for fifteen years. Its sale of that stake in December 2025 gave Elumelu the entrée to become the company’s largest shareholder.

“The story is told against the backdrop of the largest shift in Nigerian oil in a generation.  Between 2010 and 2025 the international majors moved their capital from the onshore Niger Delta to deepwater, and Nigerian companies took over the fields they left, paying more than fifteen billion dollars for them. 

“Seplat’s 2010 purchase from Shell was the first of these transactions and the model for those that followed, among them Wale Tinubu’s acquisition of ConocoPhillips’ Nigerian business for Oando and Benedict Peters’ purchase of OML 29 for Aiteo. 

“The current edition maps the full sequence in a two-page chart and considers what the transfer has meant for the delta, for Abuja and for the operators who now carry the assets.

“It is also a study of a question every successful founder-led company in Africa must eventually answer: what happens after the founders. Seplat’s two founders built a national champion and, over the following decade, drifted apart over its future direction and their places in it. 

“Board Games examines how the company emerged unscathed despite internal disagreements on the board, and other external bumps along the way.

“This forms the third thread. Seplat’s governance was written at the London listing of its shares in 2014 to restrain the arbitrary power of any single large shareholder, and it held for twelve years, until the board set it aside this year to make Elumelu chairman. 

“Drawing on the experience of Oando, Pan Ocean, Nestoil and Chappal, the edition also examines how commercial disputes among large shareholders of important Nigerian companies have escalated beyond the boardroom, through direct confrontation and through proxies, to draw in regulators, the courts, the police and anti-corruption agencies, often at the same time, before subsiding,” it added.

Board Games closes on what comes next. It noted that, “Seplat’s own five-year plan commits it to 200,000 barrels of oil equivalent a day by 2030, half as much again as it produces today, with Effiong Okon, the engineer who brought the ANOH gas plant to first gas in January, now chief executive. “

“Beside that sits the question of OML 17, the block Elumelu’s Heirs Energies already holds, and whether it will one day be combined with Seplat. His record at UBA and Transcorp, set out in the edition in figures, suggests what a patient investor does with a controlling stake.

“The account is drawn from sources in the public domain: Seplat’s prospectus, stock exchange announcements, audited results and capital markets day disclosures, Maurel & Prom’s regulatory filings, court records, published books and the reporting of established titles. Every figure is sourced where it appears. The edition is illustrated with photographs, charts, a map of the majors’ divestments since 2010 and a timeline of the company’s ownership.”

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