Serica Energy plc is an upstream oil and gas company with operations in the United Kingdom North Sea. The principal activity of the Company and its subsidiaries is to identify, acquire and subsequently exploit oil and gas reserves. Its asset portfolio includes Bruce, Keith, Northern North Sea, Rhum; Triton Area; Columbus; Orlando; Erskine; Greater Buchan Area; Mansell; Skerryvore and Fynn Beauly. It is the owner and operator of the Bruce (98%), Keith (100%) and Rhum (50%) assets consisting of over 25 wells, three bridge-linked platforms and extensive subsea pipelines and infrastructure that tie-in Rhum, Keith and the Western Area of Bruce to the Bruce facilities. The Triton Area consists of over eight oil-producing fields developed via common infrastructure in the United Kingdom Central North Sea. Columbus Development is located in the United Kingdom Central North Sea. It also holds West of Shetland, including Greater Laggan Area offshore fields and associated Shetland Gas Plant.