OKEA ASA discovered oil in Talisker exploration well 31/4-A-15 B in production license (PL 055) near Brage field in the North Sea, where the license partners are considering a tieback. The well was drilled from the Brage platform to 10,223 m MD and 2,759 m TVD subsea. The objective was to prove petroleum in Lower Jurassic reservoir rocks in the Cook formation and the Statfjord group. The well encountered 25 m of oil in the Cook formation in sandstone layers totaling 52.4 m with moderate reservoir properties. In the Statfjord group, the well encountered 63 m of oil in a total of 171 m of sandstone with moderate-to-good reservoir properties.