Gabon could soon take an important step in reviving its oil exploration. Three major international companies are preparing to finalize agreements covering extensive deepwater and ultra-deepwater areas, according to information published this week in the industry press. The signal confirms renewed operator interest in a basin whose potential still largely needs to be defined.
This prospect is part of a process Libreville began several months ago. BP and ExxonMobil signed preliminary agreements with the Gabonese state, while Shell concluded a memorandum in June to study several offshore blocks. Moving toward more structured exploration agreements would shift these initiatives, which are still partly exploratory, toward a more concrete framework for work. At this stage, the boundaries of the areas, financial commitments and operational timetable have not been made public.
A new step after the study memoranda
The preliminary agreements with BP and ExxonMobil were presented as an initial phase of discussions about the potential of Gabon's Atlantic basin. In April, Oil and Gas Minister Clotaire Kondja said the government hoped to conclude production-sharing contracts with the two groups within four to six months. The prospect of finalized agreements with three majors now suggests that discussions are continuing and could expand beyond the first companies announced.
The memorandum signed with Shell in June concerns research, evaluation and technical analysis of deepwater and ultra-deepwater offshore blocks. It notably provides for the use of geological and seismic data to better characterize these areas. The distinction is essential: a study memorandum authorizes examination of potential, but does not automatically amount to a drilling permit, production contract or investment decision.
For the authorities, the aim is to turn the majors' interest into work programs capable of reducing geological uncertainty. The companies, for their part, seek enough information to assess costs, technical risks and the possibility of a commercially viable discovery. The next step will therefore need to clarify each partner's obligations and the process for moving from data analysis to field operations.
The decisive role of offshore data
Deepwater exploration requires substantial investment even before the first well. Seismic surveys, subsurface imaging, interpretation of geological structures and operational preparation help select the most promising areas. The more complete and accessible the data, the better operators can compare development scenarios and decide whether exploration risk is acceptable.
This is also the purpose of the ten-year partnership Gabon concluded with geoscience data specialist TGS, previously covered by ONA. The partnership aims to develop the value of offshore data and improve knowledge of the subsurface. It complements the majors' initiatives while remaining distinct: TGS works on data and its development, while the company agreements concern block evaluation and, potentially, exploration.
This combination can strengthen the basin's attractiveness if accompanied by clear access to information and stable rules. However, it guarantees neither discoveries nor development. Deepwater projects are particularly sensitive to drilling costs, supply lead times, the availability of specialized vessels and changes in hydrocarbon prices.
Reviving exploration in a mature basin
Gabon has a long oil history, but a significant share of its production comes from mature fields. Reserve replacement therefore depends on the ability to discover new resources or extend the life of existing assets. Deepwater offshore exploration offers a possible route, but involves longer cycles and more capital than operations on fields already in production.
The arrival or return of groups such as BP, ExxonMobil and Shell could bring technical expertise, financing capacity and experience in large subsea projects. For the state, these strengths will create value only if future contracts define balanced revenue sharing, verifiable work obligations and appropriate monitoring mechanisms. Fiscal provisions, the allocation of recoverable costs and local content commitments will determine the quality of the agreement.
Regional competition also makes the speed and predictability of the regulatory framework important. Exploration capital flows toward basins where operators can compare geological potential, taxation, the stability of rules and available infrastructure. Gabon must therefore promote its potential while demonstrating that award and negotiation processes are clear.
Commitments to assess against results
The announcement of imminent agreements indicates interest, but the number of companies involved is not enough to measure the strategy's success. The next elements to monitor will be actual contract signatures, publication of the areas concerned, planned work programs and deadlines for the first studies or seismic campaigns. These data will help distinguish a preliminary technical presence from a long-term financial commitment.
Timing also matters for public finances and local businesses. Exploration does not generate oil revenues immediately; however, from the earliest stages it can support demand for geological, maritime, logistics and engineering services. Realistic training and subcontracting requirements could help Gabonese suppliers prepare for upcoming contracts without undermining project competitiveness.
The current developments therefore open a window for the Gabonese basin, but value will depend on execution. If the agreements materialize and the data confirm commercial potential, the country could move toward a new phase of deepwater exploration. If negotiations remain without an operational timetable or studies do not lead to drilling decisions, the majors' interest will remain a promising but still limited signal.
For Libreville, the next test is now contractual and technical: converting the presence of three international groups into measurable work, transparency on commitments and lasting national benefits.