Wintershall Norge, operator of production license 248 in the Norwegian sector of the North Sea, has found oil with wildcat 35/11-18 and appraisal well 35/11-18 A. The wells were drilled about 4 km west of Vega Sar field. The primary exploration target for well 35/11-18 was to prove petroleum in Middle Jurassic reservoir rocks (the Brent group). The secondary exploration target was to prove petroleum in Upper Jurassic reservoir rocks (sandstones in the Heather formation). In the primary target, the well encountered a 275-rm thickness of moderate-to-good reservoir quality in the Brent group. The well proved light oil in the Tarbert and Oseberg formation, with columns of 11 m and 3 m, respectively.
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