Halliburton Co. and Baker Hughes Inc., the second- and third-largest oilfield service firms, announce the cancellation of their $28 billion merger which has faced opposition from U.S. and European antitrust regulators. Halliburton will reportedly have to pay Baker Hughes a $3.5 billion termination fee if the deal is called off. [https:--www.bloomberg.com-news-articles-2016-05-01-halliburton-baker-hughes-said-to-call-off-28-billion-merger (Bloomberg)] [https:--www.reuters.com-article-us-bakerhughes-m-a-halliburton-idUSKCN0XS1KW?il=0 (Reuters)] [http:--finance.yahoo.com-news-halliburton-baker-hughes-announce-termination-000000573.html (Business Wire via Yahoo! Finance)]date=May 2020