Machinery extracting gas at a plant
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Energy firm says UK's shale gas resources could be huge

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 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.

Andrew Austin, chief executive of IGas told the BBC a UK self sufficient gas supply would be "good for the country, and good for local businesses."

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