A Lundin Petroleum subsidiary appraisal well, targeting additional resources on the southwestern flank of the Edvard Grieg Field in the central North Sea, has hit oil.

The find confirms the upside for the field “in the order of 10 to 30 MMboe,” Lundin said in a news release. “The final implication for total reserves for the Edvard Grieg Field will be quantified in the 2017 year end reserves update.”

Drilled 3 km (1.9 miles) west of the Edvard Grieg platform by Lundin Norway, appraisal well 16/1-27 in PL338 encountered a 15-m (49-ft) gross oil column in a 94-m (308-ft) thick sandstone reservoir compared to the pre-drill estimate of 38 m (125 ft) thickness, Lundin Petroleum said in a news release.

The top reservoir was hit deeper than expected with excellent reservoir quality that was also better than anticipated, the company said. The oil water contact was encountered at 1,948 m (6,391 ft) below mean sea level, 9 m (30 ft) deeper than the established contact in this part of the Edvard Grieg Field.

Pressure data confirms communication with the Edvard Grieg Field, Lundin said. Conventional coring and fluid sampling were among the data acquired.

The well, drilled using the Island Innovator semisubmersible drilling rig, will be permanently plugged and abandoned.

Lundin Norway is the operator of PL338 with a 65% working interest. Partners are OMV Norge AS and Wintershall Norge AS, holding 20% and 15% interest, respectively.

Offshore