Raised in Lincoln, Nebraska, Dan graduated from the Naval Academy and served as a Marine Corps infantry officer. He joined Mobil Corporation in 1976 and worked there for 24 years, focused on the Middle East, supply and trading, and the liquefied natural gas and power segments, with assignments in the United States, England, and Saudi Arabia. Exxon and Mobil merged in 1999, and Dan was named Chairman and CEO of ExxonMobil Saudi Arabia. He lived in Riyadh for five years. In 2004, he was named a Corporate Vice President, responsible for government relations and public policy, based in Washington, DC. He retired from ExxonMobil in 2009. Dan has served on the boards of several corporations and of a number non-profits, including the Marine Toys for Tots Foundation, the American Petroleum Institute, American Near East Refugee Aid, and Arena Stage. He is currently a director of Mentor Foundation USA. Dan resides in Scottsdale, AZ.