UK firm suggests more shale gas reserves than first thought

Help

One of the energy firms hoping to exploit the UK's resources of shale gas says it may be sitting on significantly more gas than previously thought.

UK firm IGas says there may be up to 170 trillion cubic feet (4,810 cubic km) of gas in the areas it is licensed to explore in northern England.

But it remains unclear how much of the gas will be economically extractable.

Shale gas is extracted by fracking - pumping water, chemicals and sand at high pressure into rock to release gas.

John Moylan reports.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.