Barents Sea – Lower to Middle Jurassic plays

	Group/Formation	Age	Area	Reservoir rock	Depositional environment	Trap	Source rock	Critical factors	Examples of fields	Examples of discoveries	Examples exploration wells
bjl,mj-5	Kapp Toscana Group with Tubåen, Nordmela, Stø and Fruholmen Formations	Rhaetian- Norian	Hammerfest Basin	Sandstone	Fluvial, deltaic, estuarine tidal and shallow marine	Rotated fault blocks and horst structures	Upper Jurassic shale (Hekkingen Formation), possible contribution from Triassic shales	The thickness of Nordmela and Stø Formations decreases towards northeast. The presence of a cap rock with sufficient sealing capacity. Preservation and leakage of petroleum owing to tilting, reactivation of faults and Cenozoic uplift and erosion, especially for shallow and/or truncated structures.	Snøhvit Goliat	7122/6-1
bjl,mj-6	Kapp Toscana Group with Tubåen, Nordmela, Stø and Fruholmen Formations	Hettangian- Norian	Troms-Finnmark Fault Complex, Tromsø Basin, Veslemøy High, Bjørnøya Basin, Stappen High	Sandstone	Fluvial, deltaic, estuarine tidal and shallow marine	Rotated fault blocks and horst structures	Upper Jurassic shale (Hekkingen Formation), possible contribution from older source rocks	The thickness of Nordmela and Stø Formations decreases towards northeast. The presence of a cap rock with sufficient sealing capacity. Preservation and leakage of petroleum owing to tilting, reactivation of faults and Cenozoic uplift and erosion, especially for shallow and/or truncated structures.		7019/1-1 7119/12-3 7219/8-2 7219/8-1 S 7220/7-1 7220/7-3 S 7220/8-1 7220/10-1	7219/9-1
bjl,mj-7	Kapp Toscana Group with Tubåen, Nordmela, Stø and Fruholmen Formations	Hettangian- Norian	Bjarmeland Platform and Nordkapp Basin	Sandstone	Fluvial, deltaic, estuarine tidal and shallow marine	Rotated fault blocks and horst structures. In the Nordkapp Basin: Stratigraphic traps related to salt diapers, rotated fault blocks may also occur	Early to Middle Triassic Steinkobbe Formation	The thickness of Nordmela and Stø Formations decreases towards northeast. The presence of a cap rock with sufficient sealing capacity. Preservation and leakage of petroleum owing to tilting, reactivation of faults and Cenozoic uplift and erosion, especially for shallow and/or truncated structures.		7124/3-1 7125/4-1 7225/3-1 7324/8-1	7124/4-1 S 7131/4-1 7228/1-1 7228/7-1 A