Daniel Howard Yergin (born February 6, 1947) is an American author, economic historian, and consultant within the energy and economic sectors. Yergin is vice chairman of S&P Global. He was formerly vice chairman of IHS Markit, which merged with S&P in 2022. He founded Cambridge Energy Research Associates, which IHS Markit acquired in 2004. He has authored or co-authored several books on energy and world economics, including the Pulitzer Prize–winning The Prize: The Epic Quest for Oil, Money, and Power, (1991) The Quest: Energy, Security, and the Remaking of the Modern World (2011), and The New Map: Energy, Climate, and the Clash of Nations (2020). Yergin's articles and op-eds on energy, history, and the economy have been published in publications such as The Wall Street Journal, The New York Times, The Washington Post, and the Financial Times. All of Yergin's books have been drafted in long-hand. He is affiliated with multiple organizations, as a director on the United States Energy Association, a trustee of the Brookings Institution, a long-term advisor to several U.S. administrations, as well as chairman of the annual CERAWeek energy conference.