North Sea – Sub Triassic plays
| Group/Formation | Age | Area | Reservoir rock | Depositional environment | Trap | Source rock | Critical factors | Examples of fields | Examples of discoveries | Examples exploration wells | |
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| npl-2 | Rotligendes Group and unnamed groups of Devonian and Carbonaceous age | Devonian, Carboniferous, Permian and possible Triassic | Central Graben, southern Viking Graben, Sørvestlandet High and Jæren High | Sandstone | Mainly continental | Rotated fault blocks | Upper Jurassic shale (Haugesund, Farsund and Mandal Formations) | Presence of mature source rock in the eastern part of the area is not confirmed, migration, timing, reservoir quality due to reservoir depth |
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| npl-1 (unconfirmed) | Rotligendes Group and unnamed groups of Devonian and Carbonaceous age | Devonian, Carboniferous, Permian and possible Triassic | Danish-Norwegian Basin, Egersund Basin, Ling Graben and Sele High | Sandstone | Mainly continental | Rotated fault blocks | Unknown source of Pre Triassic age | Presence of mature source rock in the eastern part of the area is not confirmed, migration, timing, reservoir quality due to reservoir depth |
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