Oil extends decline as Brexit concerns linger

Oil prices dropped around half a percent on Monday, extending sharp declines after Britain's vote to leave the European Union sparked a sharp selloff in global markets on Friday amid concerns over risk aversion. Global financial markets plunged on Friday as results from a referendum defied bookmakers' odds to show a 52-48 percent victory for the campaign to leave a bloc Britain joined more than 40 years ago. Oil prices were also under pressure as the British pound fell anew in early Asian tradin