BP Amoco Taps Ogilvy & Mather

BP Amoco said that it has selected a single agency, Ogilvy & Mather, to handle its worldwide advertising. Previously the company had been served by Doner, British Petroleum’s agency, and Leo Burnett Co., Atlantic Richfield Co.’s agency. The two oil companies expect to complete their merger by the end of the year. Marketing Week, a trade publication in Britain, estimated the potential combined billings at about $200 million. Ogilvy & Mather Worldwide, a subsidiary of WPP Group, is the world’s eighth-largest agency network, with 1998 billings totaling $9.8 billion.