Global energy giant BP has trimmed its refinery portfolio down to just five sites following the sale of one of its facilities in Gelsenkirchen, Germany.

Global energy giant BP has trimmed its refinery portfolio down to just five sites following the sale of one of its facilities in Gelsenkirchen, Germany.

BP has completed the sale of its Gelsenkirchen refinery to Klesch Group, marking another step in the company's strategy to simplify its portfolio, reduce costs, and focus on…