Norwegian oil firm Statoil has confirmed the presence of significant additional volumes in its appraisal of well 16/2-10 in the Aldous Major South discovery in the North Sea.

The company said the estimates are between 900 million and 1.5 billion barrels of recoverable oil equivalent in production licence PL265.

The oil column in 16/2-10 is approximately 60m, similar to the Aldous Major South discovery well 16/2-8.

Additional appraisal wells will be drilled in the Aldous/Avaldsnes discovery, which extends 180km2.

On completion of the appraisal well, the Transocean Leader drilling rig will move to the Troll field in the North Sea.

Statoil is the operator of PL265 with a 40% stake, Petoro has 30%, Det norske oljeselskap holds 20% and Lundin Norway has 10%.