Vaalco Energy confirms productive reservoirs in Gabon’s Etame field

Vaalco Energy Inc. confirmed a productive reservoir system in Etame field offshore Gabon.

The phase three drilling program started in fourth-quarter 2025 with the drilling of two pilot wells. The first well, ET-15P, was drilled to a total depth of 2,397 m in the western Etame-1V fault block, targeting the Gamba and encountered high-quality reservoir sands consistent with pre-drill projections.

Pressure data confirmed strong communication with nearby producing wells, supporting the presence of a connected and productive reservoir system with initial estimates of 2.4–3.2 million bbl of oil in place. Additionally, the well successfully evaluated the deeper Dentale formation, where good-quality, oil-bearing sands were encountered confirming the continuity of the original oil-water contact across this part of the field and further strengthening the development potential of the Etame asset.

The second pilot well, ET-15P-ST1, was drilled to a depth of 2,175 m on the western side of the main Etame fault block, also targeting the Gamba, and encountered multiple high-quality sand intervals, delivering about 9 m of net reservoir and 4 m of net pay across two sand lobes. Detailed analysis and volumetric assessment are underway to determine future commercial viability.

Vaalco is currently drilling the ET-15P, a horizontal production sidetrack, confirmed by the first pilot hole, which the company expects to have on production later in the first quarter.

The drilling program in Gabon includes drilling multiple development wells, appraisal or exploration wells, and workovers, with options to drill additional wells. Wells will be drilled at both Etame and Seent platforms, as well as a re-drill and a number of workovers in the Ebouri field to access production and reserves previously removed from proved reserves due to the presence of hydrogen sulfide.

Vaalco is operator at the Etame Marin block (58.8%).