Daniel H. Yergin (born February 6, 1947) is an American author, speaker, and economic researcher. Yergin is the co-founder and chairman of Cambridge Energy Research Associates, an energy research consultancy. It was acquired by HIS Energy in 2004.
Daniel Yergin is best known for The Prize: The Epic Quest for Oil, Money, and Power, a number-one bestseller that won the Pulitzer Prize for General Non-Fiction in 1922. The book was adapted into a PBS mini-series seen by more than 20 million viewers. Yergin was awarded the 1997 United States Energy Award for "lifelong achievements in energy and the promotion of international understanding." According to a biographical note in the March/April 2006 issue of Foreign Affairs, Yergin is currently at work on "a new book on oil and geopolitics."