 Complete the following phrase:  In 1919, British oil entrepreneur Lord Cowdray formed the Amerada Corporation to explore oil production in North America. The firm was incorporated on February 7, 1920, in Delaware as a holding company for its principal subsidiary, the Amerada Petroleum Corporation. The oil producer experienced growth during most of the 1920s, hitting a peak in 1926 with a net income of US4.9 million. However, in the years leading to the Great Depression, weakness in the oil markets contributed to sluggish profits. The aftermath of 