0747 GMT - British energy major BP has received unsolicited approaches expressing interest in its North Sea oil assets, the company's CEO Meg O'Neill tells CNBC. O'Neill has told new U.K. Prime Minister Andy Burnham that the country should prioritize using oil and natural gas reserves from the North Sea, she said. "We generate jobs, we generate tax revenue, we generate all those additional positive impacts." BP shares rise 1.2% to 558.7 pence.