A native of Tulsa, Oklahoma, Mr. Humphreys earned a Bachelor of Science in Industrial
Engineering and Management from Oklahoma State University in 1971. He served in
the U.S Army from 1972-1974. He obtained an M.B.A from the Wharton School of the
University of Pennsylvania before joining Exxon Chemical Company in 1976. In 1986,
after several assignments in Houston, Baton Rouge and Baytown, he transferred to
Exxon Corporation in New York as Senior Financial Advisor in the Controller’s Department.
In 1988, he moved to Exxon Company, International as Financial Reporting Manager
and later served as Assistant General Auditor. In 1990, Humphreys became Upstream
Controller of Exxon Company, U.S.A.
In 1993, he moved to Kuala Lumpur, Malaysia as Financial Director of the Exxon
companies in Malaysia. Humphreys became an Assistant Treasurer of Exxon Corporation
in January 1997 and was elected Vice President and Controller in July 1997.
Concurrent with the merger with Mobil in 1999, Humphreys was named Vice President
and Controller of Exxon Mobil Corporation. In July 2004, he was named Vice President
and Treasurer of Exxon Mobil Corporation. He was elected Senior Vice President and
Treasurer and also joined the Corporation’s Management Committee effective January
25, 2006. He served the Corporation as Principal Financial Officer from 2004 until
his retirement in January 2013.
Mr. Humphreys has served as a Director on the boards of Texas Parks and Wildlife
Foundation, Junior Achievement, and the Financial Accounting Standards Advisory
Council. He has been nominated to the board of Rosneft, Russia’s largest oil company.
In addition, Mr. Humphreys has served as a Trustee of the Oklahoma State University
Foundation and is a Life Member of the OSU Alumni Association. Mr. Humphreys is
an OSU Distinguished Alumnus and a member of the Halls of Fame for OSU Alumni, the
Spears School of Business, and the College of Engineering. He and his wife Cathey
were named Henry G. Bennett Distinguished Fellows in 2010. In 2011, he was awarded
a Doctorate of the Humane Letters by the Regents of OSU.
Don and Cathey, a graduate of the University of Oklahoma, share a passion for
the benefits of higher education and international studies. They have endowed scholarships,
programs, and chairs at OSU, OU, Wharton and the University of Tulsa.
Earning her B.S. in Business Education from the University of Oklahoma, Cathey
has taught business education and English literacy classes to adult learners. In
her supportive role as a corporate spouse, she has managed the household through
18 moves in four states and two countries while raising three children. She has
served as a member of numerous volunteer organizations and on several non-profit
boards. Cathey holds an honorary B.S. in Business Administration from Oklahoma State
University and is a Henry G. Bennett Distinguished Fellow.