Lundin Petroleum started drilling Tuesday at its exploration well 6/10-1 at the Zulu prospect in offshore Norway license PL674BS.
The well is 62 miles west of Stavanger on the Norwegian west coast and 18 miles northeast of the Johan Sverdrup discovery.
The main objective of well 26/10-1 is to test the reservoir properties and hydrocarbon potential of Miocene aged sandstones of the Utsira formation in the Patch Bank Ridge.
Sweden-based Lundin estimates the Zulu prospect holds unrisked, gross prospective resources of 153 million barrels of oil.
The well has a planned total depth of 3,346 feet below mean sea level and will be drilled using the semi-submersible drilling unit Island Innovator.
Drilling is expected to last about 25 days.
Lundin Petroleum subsidiary Lundin Norway holds a 35 percent operating stake in PL674BS.
Cyprus-based Petrolia holds a 35 percent interest and Germany-based E.ON holds a 30 percent working interest.