Gulf Oil Corporation
founded 1901
Gulf Oil was a major global oil company from the 1900s to the 1980s. T. Gulf was one of the chief instruments of the legendary Mellon family fortune; both Gulf and Mellon Financial had their headquarters in Pittsburgh, Pennsylvania.
"Company History," Gulf Oil, http://www.gulfoil.com/AboutGulf/CompanyHistory.aspx (accessed 10/17/2014)