Africa’s offshore energy landscape is entering a new phase, driven by a surge in seismic data agreements and renewed exploration activity that is reshaping how frontier basins are assessed and developed.
In November 2025, energy data and intelligence firm TGS secured the rights to market and license offshore geophysical data for Comoros, opening access to more than 10,000 line-kilometers of modern SPAN 2D seismic data. The agreement builds on TGS’ expanding footprint in East Africa, including an extended mandate with Somalia’s Ministry of Petroleum and Mineral Resources covering offshore basins, and reflects growing investor interest in data-led exploration across the region.
Momentum is also building in West Africa. In mid-2025, Sierra Leone announced plans for a new 3D seismic acquisition in its offshore basin, marking the country’s most active upstream effort in over a decade. Alongside this, legacy seismic data in the southern part of the basin are being reprocessed ahead of anticipated drilling next year, signaling a return to exploration after years of inactivity.
Further south, established offshore provinces are regaining attention. Angola’s Kwanza and Lower Congo basins are seeing a combination of seismic reprocessing and new 2D and 3D data acquisition as the country prepares for upcoming licensing rounds. At last year’s African Energy Week (AEW) conference, majors including TotalEnergies and Chevron highlighted the importance of advanced seismic imaging and faster permitting processes in unlocking frontier basins. They pointed to Namibia’s Orange Basin as a case in point, where improved subsurface imaging contributed to the “Venus” discovery achieving a reported success probability above 50%—an unusually high figure for acreage once considered frontier.
These developments underscore a broader shift away from speculative exploration toward data-driven decision-making. Expanding multi-client seismic libraries are lowering barriers to entry for explorers, reducing geological and financial risk, and enabling more informed participation in licensing rounds. According to the African Energy Chamber’s (AEC) 2026 Outlook, while traditional producers such as Algeria, Nigeria, Libya, Egypt and Angola continue to anchor continental output, attention is increasingly turning to emerging hotspots including Ivory Coast, Namibia, Sierra Leone and other frontier basins offering competitive fiscal terms.
In countries such as Sierra Leone and Comoros, improved seismic coverage could pave the way for first wells in decades. In more mature offshore markets like Angola, it may trigger a fresh cycle of exploration, appraisal and production growth by enhancing confidence in subsurface potential.
“Advanced seismic imaging is fundamentally changing the frontier exploration equation in Africa,”
said NJ Ayuk, Executive Chairman of the African Energy Chamber.
“By combining high-quality 2D and 3D data, reprocessed legacy surveys and more efficient permitting, countries are replacing speculation with certainty. This is how Africa unlocks its undeveloped basins responsibly—by lowering risk, attracting serious long-term capital and ensuring that exploration translates into real projects, real production and real value for African economies.”
As seismic datasets continue to grow and become more accessible, exploration dynamics are expected to evolve further. Smaller independents and local companies may play a more active role, leveraging shared data to evaluate and bid on prospective blocks, while governments could negotiate stronger terms as risk premiums decline.
Looking ahead to AEW 2026, the seismic-driven revival of African basins is likely to dominate discussions. With improved subsurface understanding, faster permitting, expanding multi-client libraries and renewed investor appetite, the continent appears poised to unlock a significant portion of its vast, yet underexplored, hydrocarbon potential.
