The Norwegian Offshore Directorate (NOD) reports a petroleum discovery in the Knockando Fensfjord prospect in production licence 055, confirmed by the 31/4-A-15 D development well drilled to search for oil from the Brage installation.
Preliminary estimates indicate additional recoverable resources for Brage of 0.5 to 1.5 million standard cubic meters of oil equivalent if the discovery is oil. If it is gas, the preliminary volume estimate is 0.4 to 0.9 million standard cubic meters of oil equivalent.
The 31/4-A-15 D well penetrated the reservoir section in the lower Fensfjord Formation of Late Jurassic age on its way to the Talisker production target in the Brent Group of Middle Jurassic age. A 38.5 m hydrocarbon column was proven across an interval of multiple sandstone layers with moderate to good reservoir quality.
The petroleum/water contact was not encountered. The wellbore was drilled to measured and vertical depths of 10,009 m and 2,309 m below sea level, respectively, and was terminated in the Oseberg Formation in the Middle Jurassic. Data was collected in the discovery interval.
The wellbore 31/4-A-15 D started producing from the 31/4-A-1 B (Talisker) discovery on 11 January 2026. The licensees are now considering opportunities for developing Knockando Fensfjord.
Production licence 055 was awarded in the fourth licensing round on the Norwegian Continental Shelf in 1978. The licensees are OKEA (operator), Lime Petroleum, DNO, Petrolia NOCO, and M Vest Energy. Brage was proven in 1980, and the Storting approved the plan for development and operation in 1990.
NOD added that several discoveries have been made in the Brage area in recent years, including Talisker Cook/Statfjord (31/4-A-15 B) and Prince (31/4-A-23 G), which were proven in 2025.