Exclusive: research finds Jackdaw field would provide only about 2% of current demand, and Rosebank only 1% Exclusive: research finds Jackdaw field would provide only about 2% of current demand, and Rosebank only 1% Opening major new fields in the North Sea would make almost no difference to the UK’s reliance on gas imports , research has shown. The Jackdaw field, one of the largest unexploited gasfields in the North Sea, would displace only 2% of the UK’s current imports of gas, which would