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<p>No detailed assessment of shale oil or gas in the Vale of Clwyd has been made. A DECC-commissioned British Geological Survey report, “The Hydrocarbon Prospectivity of Britain's Onshore Basins”, notes the Formby oil seep and identifies oil seeps in north Wales, east of the Vale of Clwyd:</p><p>https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/66170/uk-onshore-prospectivity.pdf</p><p>These have been recognised since the 17<Sup>th</Sup> century, and led to thediscovery of the very shallow Formby Oilfield in 1939 which producedheavy oil fromsandstone.</p> |