1998年12月30日,BP和Amoco证实,美国联邦贸易委员会(FTC)已授予两家公司合并的监管批准,并在年底完成该交易的完成。Both companies agreed to intend to close the transaction shortly after 2100 hours London time on December 31, 1998, when Amoco's stock will leave the Standard & Poor 500 and the shares of the merged group, BP Amoco p.l.c., will be listed on the London Stock Exchange. With a market capitalization of more than $140 billion, BP Amoco p.l.c. is the Britain's biggest company and one of the world's top three oil majors.