Deltic Energy Plc acquired 100% of Licences P2252 and P2558 in the 28th and 32nd Rounds respectively before farming out to Shell who spudded the exploration well 41/05a-2 in November 2022 which discovered Pensacola, the largest SNS gas discovery since 2011. Pensacola is reservoired in the Hauptdolomit unit of the Permian, Zechstein Group of evaporites and carbonates and is fully mapped on 3D seismic. The well was drilled on the western flank of the structure to differentiate geological models and encountered 18.8m of reservoir in a slope facies at 1,745m TVDss and demonstrated moveable hydrocarbons on well test with average porosity of 18.8% from the cores collected as well as permeability of 40 mD (max) and 6 mD (average).
The results proved a four-way dip closed structure with a 130m gas column and probable gas-oil contact observed at 1,755m TVDss. DST results achieved a 4.75 mmscf/d peak rate post acidization declining to 1.75 mmscf/d after 12 hours in line with pre-drill estimates given the well was drilled down dip and there was significant formation damage.