(February 2, 2021, 1:22 PM EST) -- WILMINGTON, Del. — A publicly traded diversified holding company and its affiliates on Jan. 30 sued their primary and excess directors and officers liability insurers in the Delaware Superior Court for breach of contract and bad faith, seeking coverage for underlying putative class action lawsuits alleging that they improperly manipulated the unit price of an oil refiner and marketer of transportation fuels in the lead up to the exercise of a call right....