Seplat Energy Plc has announced a major leadership shake-up that is already making waves across Nigeria’s oil and gas industry. Billionaire investor Tony O. Elumelu will take over as Chairman from January 1, 2027, while veteran engineer Effiong Okon steps in as Chief Executive Officer from August 1, 2026. The changes come barely months after Elumelu’s Heirs Holdings bought a 20.07 percent stake in the company for around $500 million, making it the single largest shareholder.
The board described the move as a deliberate step to strengthen governance and push the company’s 2030 growth plan in oil, gas, and new energy. Many market watchers see it as a vote of confidence in Seplat’s future, especially after its recent acquisition of Mobil Producing Nigeria Unlimited.
Why Tony Elumelu is taking the chairman’s seat at Seplat Energy
Elumelu, founder of Heirs Holdings and chairman of UBA, joined Seplat’s board only in January 2026. His track record of building pan-African businesses across banking, power, and energy made him the natural choice to succeed retiring Chairman Senator Udoma Udo Udoma, who steps down on December 31, 2026. People close to the company say the appointment aligns ownership with leadership and brings fresh strategic direction as Seplat eyes bigger projects.
Who is Effiong Okon and why was he picked as Seplat’s new CEO?
Engr. Effiong Okon is no stranger to Seplat. He has been with the company since 2018, serving first as Operations Director on the board, then as New Energy Director, and most recently as Managing Director of ANOH Gas Processing Company, where he delivered first gas in January 2026. Before Seplat, the 35-year industry veteran spent decades at Royal Dutch Shell across Africa, the US, Europe, and the Middle East. He takes over from Roger Brown, who retires on July 31 after 13 years that saw the company grow through major acquisitions and dual listing.
The board said the succession ensures continuity while injecting new energy into operations. Okon’s deep knowledge of Seplat’s assets and his proven delivery on complex projects made him the clear pick.
Nigerians following the story on social media are already calling it a “home-grown power move.” For an indigenous energy giant like Seplat, having two respected Nigerian leaders at the helm sends a strong message about local capacity in a sector still dominated by international players.
The appointments were filed with the Nigerian Exchange Limited and welcomed by investors who see them as positive for long-term value. Seplat has come a long way from its early days, and many believe this leadership team will help it deliver on its promise to transform lives through reliable energy.
As the dust settles, all eyes will be on how Elumelu and Okon steer the company through global energy shifts and Nigeria’s own push for gas utilisation and cleaner power. For now, the market is watching closely, and the vibe in business circles is one of quiet optimism.
