Prax Lindsey Oil Refinery is an oil refinery in North Killingholme, North Lincolnshire, England owned and operated by the Prax Group. It lies to the north of the Humber Refinery, owned by rival oil company Phillips 66, and the railway line to Immingham Docks. Immingham Power Station, owned by VPI Immingham, provides the electricity and heat for the fractionation processes.