West of Shetlands
4 September 2019

Cambo appraisal well to determine STOIIP, recoverable reserves and deliverability in Hildasay Sandstone and run EWT in support of Phase 1 field development. Located high on NW flank of Cambo anticline with near-vertical pilot hole proving more than 100 ft gross/58 ft net oil pay in Hildasay; 23° API oil recovered on wireline. 204/10a-5Y was a sidetrack to vertical pilot hole 204/10a-5 and abandoned (junked?) 204/10a-5Z, with a 1,612 ft horizontal section in Hildasay, tested over 10 days at 5,000 bopd dry oil and suspended with pressures gauges installed. Test and pressure data showed rapid recovery to virgin conditions, with good lateral connectivity, several hundred million barrels of connected volume and potential recoveries of 30–35% of STOIIP.