The main site was owned by ConocoPhillips, with pipelines to National Grid's National Transmission System, and E.ON's 20 inches Killingholme Pipeline System http://www.eon-uk.com/generation/pipelines.aspx E.ON UK to both Killingholme A power station and Killingholme B power station, transporting 256,000 m3/h at a pressure of 40-55 bar.