Reported by Weng Patrick Atokor l Journalist at Weng Global
South Atlantic Petroleum Limited (SAPETRO), a Nigerian oil and gas exploration and production company, has signed an agreement to acquire a 40 per cent participating interest in offshore oil block OPL257 from French energy giant TotalEnergies, strengthening its position in Nigeria’s deepwater petroleum industry.
The agreement, announced by TotalEnergies on October 30, 2026, is expected to reshape the ownership structure of the offshore block and support further exploration and appraisal activities around the Egina South oil discovery.
Under the proposed arrangement, TotalEnergies will retain a 50 per cent participating interest and continue as operator of OPL257, while SAPETRO will hold 40 per cent and Conoil will retain the remaining 10 per cent once the transaction is completed.
However, completion remains subject to customary conditions, including regulatory approvals.
The agreement represents another significant development in Nigeria’s offshore petroleum sector, particularly as local energy companies seek greater participation in the development of the country’s deepwater resources.
TotalEnergies Confirms Farm-Out Agreement with SAPETRO
In its official announcement, TotalEnergies confirmed that it had signed a Farm-Out Agreement to transfer a 40 per cent participating interest in OPL257 to SAPETRO.
A farm-out agreement is an arrangement through which an existing interest holder transfers part of its ownership or participating interest in an oil and gas asset to another company.
Such arrangements allow companies to share exploration and development responsibilities, distribute financial exposure and bring additional partners into petroleum projects.
For SAPETRO, the agreement provides an opportunity to increase its participation in a deepwater asset associated with the Egina South discovery.
TotalEnergies, meanwhile, will retain majority ownership and operational control of the block, maintaining its leading role in the project’s development.
The French energy company described the agreement as a strengthening of its existing relationship with SAPETRO, which is already a partner in the neighbouring PPL261 licence.
Mike Sangster, Senior Vice-President for Africa Exploration and Production at TotalEnergies, said the partnership would support a faster appraisal campaign and potentially advance the development of Egina South.
He explained that the arrangement was consistent with the company’s strategy of developing lower-cost, lower-emission resources while making use of existing offshore infrastructure.
Understanding OPL257 and the Egina South Discovery
OPL257 is an offshore petroleum block located approximately 150 kilometres from Nigeria’s coastline.
Its strategic importance is closely connected to the Egina South oil discovery, which was made in 2005 in the neighbouring PPL261 area.
The discovery extends across both PPL261 and OPL257, making cooperation between the companies holding interests in the two areas important for evaluating and potentially developing the full resource.
According to information published by SAPETRO, Egina South is located in deepwater offshore Nigeria, at a water depth of approximately 1,650 metres.
The company identifies the discovery as an appraisal-stage project requiring additional technical work, including an appraisal well on the OPL257 side and coordination between the relevant licence interests.
This makes the latest agreement particularly important because SAPETRO already has an existing relationship with TotalEnergies in the neighbouring licence area.
The expanded partnership could improve coordination between the companies as they assess the commercial potential of the discovery.
However, further appraisal work will be necessary before the partners can establish the development requirements and commercial viability of the project.
Proposed Ownership Structure of OPL257
Following completion of the transaction, the ownership structure of OPL257 is expected to be distributed among three companies.
- TotalEnergies – 50 per cent: The French energy company will retain majority participating interest and continue operating the block.
- South Atlantic Petroleum (SAPETRO) – 40 per cent: The Nigerian company will become a substantial participating partner.
- Conoil – 10 per cent: The Nigerian oil company will retain its existing minority interest.
The proposed arrangement will give SAPETRO a significant position in the offshore asset while allowing TotalEnergies to maintain operational leadership.
The financial value of the transaction was not disclosed in TotalEnergies’ announcement.
Consequently, the precise purchase consideration and other commercial terms remain unclear.
Egina South Appraisal Campaign Expected in Coming Months
One of the most important aspects of the agreement is its connection to the planned appraisal campaign for Egina South.
TotalEnergies said an appraisal campaign on the OPL257 side of the discovery would be undertaken in the coming months.
Appraisal activities are designed to improve understanding of an oil or gas discovery, including its size, geological characteristics and potential commercial value.
The findings help companies determine whether a discovery can support an economically viable development project.
For Egina South, the appraisal campaign will help the partners assess the resources extending into OPL257 and determine the appropriate development approach.
The proposed development concept involves connecting the field to the existing Egina Floating Production, Storage and Offloading (FPSO) vessel.
The Egina FPSO is located approximately 30 kilometres from the discovery.
A subsea tie-back involves connecting offshore wells and associated production infrastructure to an existing production facility rather than constructing an entirely new standalone processing and storage installation.
This approach can reduce the need for additional infrastructure and potentially lower development costs, although the final economics will depend on engineering studies, resource estimates, production requirements and investment decisions.
The use of existing infrastructure is therefore central to the proposed development strategy.
Why the Egina South Project Matters to Nigeria’s Oil Industry
Nigeria remains one of Africa’s major oil-producing countries, and the development of offshore petroleum resources continues to form an important part of its energy industry.
The latest agreement highlights two important developments: the participation of Nigerian companies in major offshore projects and the continued interest of international energy companies in developing existing discoveries.
For SAPETRO, acquiring a 40 per cent interest in OPL257 would strengthen its deepwater portfolio and provide a greater role in a project with potential development opportunities.
The company describes itself as a Nigerian exploration and production business focused on creating value through exploration, development and production opportunities across Africa.
Its increased participation in OPL257 also builds on its existing partnership with TotalEnergies in PPL261.
For Nigeria, the potential development of Egina South could create opportunities for additional petroleum investment, offshore engineering activities, technical services and employment across the oil and gas supply chain.
However, these benefits remain dependent on successful appraisal, regulatory approvals, commercial decisions and eventual project execution.
The agreement itself does not mean that additional oil production has commenced or that the discovery has already entered commercial development.
Existing Egina Infrastructure Could Reduce Development Requirements
The proposed connection to the Egina FPSO is another significant feature of the project.
Offshore oil developments often require substantial investment in production platforms, subsea equipment, pipelines, processing systems and storage facilities.
Where an existing production facility is located within a reasonable distance of a new discovery, companies may consider connecting the new development to that infrastructure.
For Egina South, the approximately 30-kilometre distance between the discovery and the Egina FPSO provides a potential opportunity for this approach.
TotalEnergies has indicated that leveraging existing facilities is consistent with its strategy of developing resources with lower costs and emissions.
Nevertheless, the technical and commercial feasibility of the proposed connection will need to be established through further studies.
The partners will also need to consider production capacity, subsea infrastructure, reservoir characteristics and the investment required to bring the discovery into production.
SAPETRO’s Growing Role in Nigeria’s Deepwater Petroleum Sector
The agreement further strengthens SAPETRO’s position as a Nigerian participant in the country’s offshore petroleum industry.
The company already holds interests in several deepwater assets and maintains partnerships with international and domestic energy companies.
Its involvement in PPL261 alongside TotalEnergies and other partners provides an existing relationship that could support the expanded collaboration in OPL257.
The latest transaction also reflects the importance of partnerships between indigenous companies and international operators in developing technically demanding offshore petroleum resources.
Deepwater exploration and development require significant capital, specialised technology, technical expertise and long-term project planning.
Partnership arrangements can help distribute these responsibilities among participating companies.
For Nigerian independent energy companies, acquiring interests in offshore assets can provide opportunities to expand their portfolios and participate more directly in the country’s upstream petroleum industry.
However, the extent of the benefits will depend on their financial capacity, technical capabilities and ability to meet the obligations associated with participating interests.
What Happens Next?
The immediate next step is the completion of the regulatory and other customary requirements attached to the Farm-Out Agreement.
Until the necessary approvals are secured, the proposed ownership arrangement should not be treated as a fully completed transaction.
Following completion, attention will turn to the planned appraisal campaign on the OPL257 side of Egina South.
The results will help the partners determine the discovery’s development potential and assess whether a subsea connection to the Egina FPSO can provide a commercially viable route to production.
No final development decision or production commencement date was provided in the October 30 announcement.
The coming months will therefore be important in determining how quickly the partners can progress from the ownership agreement to further technical evaluation.
For Nigeria’s oil and gas industry, the development offers another indication of the continuing interest in deepwater petroleum opportunities and the growing involvement of indigenous companies in strategic offshore assets.
Weng Global will continue to follow developments surrounding the OPL257 transaction, the Egina South appraisal programme and the wider implications for Nigeria’s upstream petroleum industry.
Weng Global – Stories beyond borders
Sources
- TotalEnergies – Nigeria: TotalEnergies Strengthens Its Partnership with SAPETRO to Support the Fast Development of OPL257 (October 30, 2026)
- SAPETRO – Egina South Project
- SAPETRO – About the Company
- Oil & Gas Journal – TotalEnergies Farms Out Partial Interest in Operated Block Offshore Nigeria
- BusinessDay – TotalEnergies Sells 40% Offshore Stake to SAPETRO in Nigeria
- World Oil – TotalEnergies Farms Out 40% of OPL257 Offshore Nigeria to SAPETRO
