Serica Energy plc operates as an independent exploration and production company within the upstream oil and gas sector. Its primary focus involves the identification, acquisition, exploration, development, and extraction of hydrocarbon reserves, primarily situated in the United Kingdom's offshore territories. The company holds diverse interests across several key assets. In the Northern North Sea, it maintains full ownership of the Keith oil fields, a substantial 98% stake in the Bruce gas fields, and a 50% interest in the Rhum gas fields. Additionally, Serica entirely controls the North and South Eigg exploration prospects within this same region. Moving to the Central North Sea, its portfolio includes an 18% non-operating share in the Erskine field. It also has a 50% equity in the Columbus development project and a 20% holding in the Skerryvore and Ruvaal exploration prospects. Established in 2004, Serica Energy plc is headquartered in London, United Kingdom.