1/9-1 Tommeliten Alpha is a discovery near the border to the UK sector in the southern part of the Norwegian sector in the North Sea, 25 kilometres southwest of the Ekofisk field. The water depth is 75 metres. The discovery was proven in 1977. The reservoir contains gas and condensate in chalk in the Paleocene Ekofisk Formation and Upper Cretaceous Tor Formation. It lies at a depth of about 3000 metres. Four wells were drilled on the discovery, the last one in 2003. The development of Tommeliten Alpha has been stopped two times at the concept selection stage. In 2020, a concept for development as a tie-in to the Ekofisk Centre was selected. The plan for development and operation (PDO) is expected to be submitted in late 2021.
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