Lundin Petroleum has spud its appraisal well.
The well will gauge the hydrocarbon potential of the Gohta discovery in PL 492, which is located 155km off the Norwegian coast.
The original discovery, made in October last year, recovered a 25 metre gross gas column above a 75 metre gross oil column.
The appraisal well is expected to be drilled a depth of 2,930 metres below the sea level. Lundin Petroleum is using the drilling Island Innovator to carry out the work, which is expected to last 65 days.
Lundin Norway is the site operator with a 40% working interest in PL 492. Its partners Det norske oljeselskap ASA has a further 40% working interest and Noreco Norway AS has the final 20% working interest.