The Borr Prospector 5 jack-up drilling rig is mobilising to the MaBoMo production platform offshore Gabon, where it will undertake a four-well production drilling campaign on the Dussafu Marin permit operated by BW Energy.
The MaBoMo Phase 2 programme will target the Hibiscus and Hibiscus South fields, with the first new production well expected to come onstream in the first quarter of 2027.
Before starting the new wells, BW Energy plans to replace an electrical submersible pump (ESP) on an existing Hibiscus production well.
The rig’s mobilisation follows the completion of two appraisal wellbores in the northwest Hibiscus area. The first well encountered a 16-metre oil column in the Gamba reservoir, while a sidetrack drilled from the same main wellbore confirmed a 30-metre oil column in an undeveloped section of the Hibiscus field.
According to BW Energy‘s official drilling update, the appraisal results indicate combined gross recoverable oil volumes of approximately 8–9 million barrels.
The operator has included a fifth production well at the second appraisal location in its drilling plans, to follow the four scheduled Phase 2 wells. However, joint venture partner Panoro Energy said the addition was still being assessed.
The potential fifth well is estimated to recover at least 6 million barrels of oil. Formation evaluation and testing indicate that initial production could exceed 5,000 barrels per day.
BW Energy expects the four Phase 2 production wells to add up to 20,000 barrels per day gross at peak output as they are brought online sequentially.
The Phase 2 programme follows Borr Drilling‘s earlier agreement for the Prospector 5 drilling assignment. In April 2026, the drilling contractor reported receiving a binding letter of award from BW Energy covering four wells with a minimum duration of 320 days.
After the MaBoMo campaign, BW Energy plans an additional infill well at the Tortue field, followed by the Bourdon Phase 1 development, where first oil is targeted for the first quarter of 2028.
BW Energy holds a 73.5% operating interest in the Dussafu licence, while Panoro Energy owns 17.5% and Gabon Oil Company holds the remaining 9%.
