Despite the success of Buffett Partnership, its founder dissolved the firm in 1969 to focus on the development of Berkshire Hathaway. He phased out its textile manufacturing division, instead expanding the company by buying assets in media (The Washington Post), insurance (GEICO) and oil (Exxon). Immensely successful, the "Oracle of Omaha" even managed to spin seemingly poor investments into gold, most notably with his purchase of scandal-plagued Salomon Brothers in 1987. Following Berkshire Hathaway's significant investment in Coca-Cola, Buffett became director of the company from 1989 until 2006. He has also served as director of Citigroup Global Markets Holdings, Graham Holdings Company and The Gillette Company.