Southern North Sea
28 July 2021

Exploration well on the Aspen prospect, with Dinantian carbonate (reef) primary and Namurian (Millstone Grit) secondary objectives on an Alpine (Oligocene) inverted faulted anticline with main target prognosed at 8,836 ft. Play required oil-mature Lower Namurian shale source. Well deviated slightly to objective and proved 765 ft TVT gross Namurian (Millstone Grit facies), with tight sandstones at 6,702 ft TVDSS, 1,655 ft gas-prone, oil-mature Bowland Shale and 402 ft TVT gross hard, unfractured Dinantian limestone at 9,122 ft to TD. Both objectives tight with no shows.

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