4.1 To inform this assessment we have sought evidence from the US on the economic value of shale gas production. This has proved useful in both understanding the likely scale of job creation attached to each drill-well but also the nature of the supply chain effects and the locational decisions of key suppliers as production gears up. Before analysing the evidence, it
is important to acknowledge some key differences between shale gas production in the US compared to that which is likely in the UK: