RE: Sark RNS15 Aug 2025 08:33
Union Jack Oil plc (AIM: UJO, OTCQB: UJOGF), a UK and USA focused onshore hydrocarbon, production, development, exploration and investment company is pleased to announce that the Company has signed a farm-in agreement with Reach Oil and Gas Inc ("Reach") to acquire a 60% working interest (paying 80%) in the Sark well, planned to be drilled early Q3 2025, located in Central Oklahoma, USA.
· 3D supported Sark well will drill a dip and fault closed large structure of 156 acres area and 40 feet relief
· Estimated recoverable resources of 1,440,000 barrels of oil gross
· Cost to drill, complete and develop circa US$1,100,000 net, including back costs of $236,800
· Estimated success case of NPV10% circa US$10,900,000 net, based on a US$65/bbl oil price
· Counter-regional fault down to the east in the Graben formed by the Wilzetta Fault with structural closure at Arbuckle level with further upside potential of 1,500,000 barrels of oil gross
· Hunton and 2nd Wilcox formations are the objective targets with Total Depth estimated at 5,500 feet
· Secondary targets productive in the immediate area include the Prue Sands, Red Fork and Base Pennsylvanian Sands
· Adjacent to an oilfield that produced circa 1,600,000 barrels of oil from the Hunton and 2nd Wilcox sands
· Chance of Success of finding movable hydrocarbons in this robust, multiple target structure is 65%
Sark is an untested Hunton and Wilcox structure with two main and several secondary targets present, adjacent to a producing oilfield. Closure exists throughout the prospective sequence beneath the 2nd Wilcox and the well will be drilled to the Arbuckle formation.