The discovery (35/11-23 ) was proven in November 2019 in two sandstone intervals in Upper Jurassic Sognefjord Formation, as well as in the secondary exploration target in the Brent Group.
The appraisal (35/11-23 A) well encountered water in both sandstone intervals in the Sognefjord Formation.
The uppermost has sandstone layers of about 40 m with reservoir quality varying from good to very good, as in the discovery well. The other sandstone interval has sandstone layers of about 30 m with good to very good reservoir quality.
The Viking Group in the Upper Jurassic was examined more closely in the appraisal well since there were indications of hydrocarbons in a sandstone layer at this level in the 35/11-23 discovery well. A sandstone layer about 10 m thickness was encountered in the appraisal well, but this was cemented and tight.
The appraisal well was not drilled down to the discovery that was made in the secondary exploration target in the Brent Group.
Preliminary estimates place the size of the discovery between 42 and 100 mmboe.