Union Jack Oil plc is an onshore oil and gas exploration and production company. The Company focuses on drilling, development, investment and production in the United Kingdom hydrocarbon sector. Its projects include Wressle, located on PEDL180; Burton on the Wolds, located on PEDL201; Biscathorpe, located on PEDL253, and North Kelsey located on PEDL241. It holds interest in PEDL180 located in Lincolnshire, on the Western margin of the Humber Basin and is on trend with the producing Crosby Warren oil field and the Brigg-1 oil discovery, which is situated to the immediate northwest and southeast of the license respectively. PEDL253 is located within the hydrocarbon fairway of the Humber Basin, on trend with the Saltfleetby gas field and the Keddington oil field, which produces oil from the Upper Carboniferous Westphalian aged reservoir sandstones. Its PEDL241 is located within the hydrocarbon fairway of the Humberside Platform. Its Keddington oilfield is located within PEDL005.