High Quality Content by WIKIPEDIA articles! Robert Adam Mosbacher, Sr. (March 11, 1927 – January 24, 2010), was an American businessman, accomplished yacht racer, and a Republican politician. In sailing, Sports Illustrated called him "the unquestioned master of fleet racing." In business in 1954, he found a million-dollar field of natural gas in South Texas. Since then, Mosbacher Energy Company has been very successful.