Sierra Leone has taken a significant step toward unlocking its offshore petroleum potential by signing a reconnaissance permit agreement with global energy major Shell. The deal grants Shell the right to conduct advanced geological and geophysical surveys, including basin modelling and petroleum systems analysis, across approximately 20,600 square kilometres of deepwater offshore blocks.

The reconnaissance programme will include basin modelling and petroleum systems analysis to develop a clearer understanding of Sierra Leone’s deepwater hydrocarbon potential.

Officials expect the resulting data to significantly de-risk the basin for potential investors and lay the groundwork for future licensing rounds and exploration activities.

The agreement follows a similar reconnaissance permit signed with Italy’s Eni in October last year, as Sierra Leone continues its push to attract major international oil companies to its offshore sector.

Shell has emphasised that the permit does not authorise drilling or guarantee future exploration rights, but represents an important initial step in evaluating what could be substantial untapped resources.