Equinor and its partners have made a new oil and gas discovery in production licence 923 (PL 923), near the Troll field in the Norwegian North Sea.

The new discovery, called Røver Sør, was made through the drilling of wildcat well 31/1-3 S and appraisal well 31/1-3 A using the Transocean Spitsbergen rig.

As per the Equinor’s preliminary estimates, the discovery holds between 17 million and 47 million barrels of recoverable oil equivalent, with the majority being oil.

Following drilling to a depth of 3,558m below sea level, the wildcat well 31/1-3 S intersected a gas column of nearly 80m in the Tarbert and Ness Formations.

An oil column of approximately 50m was intersected in the Ness, Etive, and Oseberg Formations.

The oil/water contact was made at a depth of 3,227m below sea level in the Oseberg Formation.

Both the 31/1-3 S and 31/1-3 A were not formation-tested. However, extensive data acquisition and sampling were undertaken.

Equinor operates the PL 923 with a 40% stake. Other partners include DNO Norge (20%), Wellesley Petroleum (20%), and Petoro (20%).

Equinor exploration and production west operations senior vice-president Geir Sørtveit said: “Discoveries close to existing infrastructure are important to maintain oil and gas production from the Norwegian continental shelf. They need smaller volumes to be profitable and can be put on stream quickly with low carbon emissions.

“As this discovery is close to the Troll field and other discoveries we have made in the area, we can already now state that it will be commercial.”

The Transocean Spitsbergen drilling facility will drill wildcat well 34/6-6 S in production licence 554 in the northern North Sea.