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PwC estimates fracking yield

14 February 2013 Last updated at 14:43 GMT

Shale gas deposits in Northern Ireland could be worth about £80bn according to a new report by consulting firm PwC.

It is believed most of the reserves are in the north west and Fermanagh.

The gas would need to be extracted using a controversial process known as hydraulic fracturing, or fracking.

Sinn Féin have claimed the report was "one-sided" and "sensationalist". The issue of fracking has divided the community in Fermanagh in recent years.