A company believes there could be thirty million barrels to be discovered in Dorset.
It has just started a new oil well near Dorchester and is surveying surrounding fields looking for more.
Jerry Field is the Exploration Director:
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Pupils at Hayle Community School launched the pasty as part of a project they are undertaking.
After a dry end to the day, it will grow colder overnight with a light breeze.
It will turn chilly tonight with largely clear skies and light winds.