The House of Commons Welsh Affairs Committee meeting of 22 Oct 2013 gathering evidence on shale gas in Wales, see website at http://www.parliamentlive.tv/Main/Player.aspx?meetingId=13991
Cutting to the chase they said that tens of thousands of wells will be needed across the UK to commercially exploit the shale gas reserves.
Perhaps we should setup a competition to guess how many will be needed across the Vale? Send your answers to @llantrithyd