As early as 1996, oil was proven in well 24/12-3 S in the Heimdal formation in Paleocene rocks. Well 24/12-3 S is located about 20 kilometers north of the discovery 15/3-1 S Gudrun, and about 20 kilometers west of Balder.
The exploration target for well 24/12-5 S was to delimit the 24/12-3 S discovery. The well was dry. Good quality reservoir sandstone was encountered. The well will now be plugged and abandoned. This is the first well in production license 341, which was awarded in the Awards in Predefined Areas in 2004 (APA 2004).
The well was drilled to a vertical depth of 2214 meters below the sea surface, and was concluded in the Heimdal formation in Paleocene rocks. Water depth at the site is 116 meters.
Well 24/12-5 S was drilled by the semisub, Bredford Dolphin, which will now drill wildcat well 31/1-1 in production license 311 operated by Marathon Petroleum Norge AS.
The licensees in production license 341 are NOIL Energy ASA (subsidiary of Det norske oljeselskap ASA) as operator with 30%; Revus Energy ASA with 30%; Talisman Energy Norge As with 30% and PA Resources Norge AS with the remaining 10%.
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