Stephen Chazen

Stephen Chazen (1946 – September 22, 2022) was an American businessman. He was president and chief executive officer (CEO) of Occidental Petroleum from 2011 to 2016.

Early life He was born in 1946. He earned a bachelor's degree in geology from Rutgers University, a master's degree in finance from the University of Houston, and a PhD in geology from Michigan State University.

Career He worked as a managing director in corporate finance and mergers and acquisitions at Merrill Lynch. He was executive vice president-corporate development at Occidental Petroleum from 1994 to 1999, and as its executive vice president-corporate development from 1999 to 2004. He replaced Ray R. Irani, who went on to serve as chairman.

He was on the board of directors of the American Petroleum Institute, Lyondell Chemical Company, Premcor and Washington Mutual.

He was on the board of trustees of the Aquarium of the Pacific and Catalina Island Conservancy.

Death Chazen died on September 22, 2022.