William Koch, energy investor and member of the prominent Koch family, built a diversified fortune through oil, commodities trading, and industrial investments while operating independently of Koch Industries. As founder of Oxbow Carbon, he developed a global business focused on petroleum coke, sulfur, and related energy materials, supplying utilities and industrial customers worldwide. Known for high-profile legal battles, yachting victories, and major art and wine collecting, Koch combines traditional energy entrepreneurship with a strong presence in philanthropy and cultural patronage.

John Catsimatidis, billionaire businessman and founder of the Red Apple Group, built a diversified empire spanning supermarkets, energy, real estate, and aviation. After immigrating to the United States from Greece as a child, he left college to take over a small grocery store and expanded it into the Gristedes supermarket chain, later branching into oil refining and fuel distribution through United Refining. Catsimatidis also became a major New York real estate developer, adding residential towers and mixed-use properties to his portfolio. A prominent political donor, radio host, and philanthropist, he remains one of New York’s most outspoken and influential entrepreneurial figures.