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Gregory H. Boyce

From Alfawiki
Adapted from the English Wikipedia article Gregory H. Boyce, available under CC BY-SA 4.0Updated 11 August 2025
Gregory H. Boyce
EducationBachelor of Science in Mining Engineering, University of Arizona; Advanced Management Program, Harvard Business School
OccupationBusiness executive
Known forCEO and executive chairman of Peabody Energy; board member of Marathon Oil and Monsanto; chair of Coal Industry Advisory Board of the International Energy Agency

Gregory H. Boyce is a prominent American executive in the business sector.

Education

Boyce obtained a Bachelor of Science degree specializing in Mining Engineering from the University of Arizona located in Tucson. He also completed the six-week Advanced Management Program offered by Harvard Business School.

Career

His career commenced as an executive assistant to the vice chairman at Standard Oil of Ohio during 1983–1984. He later held the position of president at Kennecott Minerals between 1993 and 1994. Subsequently, he was appointed CEO and president of Rio Tinto's U.S. energy division from 1994 until 1999, and then advanced to global CEO of Rio Tinto’s energy division from 2000 through 2003.

At Peabody Energy, Boyce occupied several leadership roles: chief operating officer from 2003 to 2005, president from 2003 to 2007, chief executive officer between 2006 and 2015, and executive chairman from 2007 until his retirement at the end of 2015. Notably, Peabody Energy filed for Chapter 11 bankruptcy protection in April 2016.

Since 2008, Boyce has been a member of the board of directors at Marathon Oil, assuming the role of lead independent director starting in 2019. He previously chaired the National Mining Association and has maintained board memberships with Marathon Oil since 2008 and with Monsanto beginning in 2013. Boyce is affiliated with both the Business Roundtable and The Business Council. His service record also includes participation on the board of the U.S.-China Business Council and trusteeship at Washington University in St. Louis. Furthermore, he leads as chair of the Coal Industry Advisory Board within the International Energy Agency and holds membership in the National Coal Council.