The Eastern Trough Area Project (ETAP) is an integrated development of seven different reservoirs. Four separate fields are operated by BP, namely Marnock, Mungo, Monan and Machar (the M fields); and three by Shell, called the Heron, Egret and Skua fields (the Heron cluster). Located 240km east of Aberdeen in the Central North Sea, all are geographically located within a 35km area.
Behind the platform is an accommodation barge, probably the Polyconcorde.
Picture added on 08 November 2006