Board of Trustees Member, Presidential Search Committee Chair

Darald “Darry” Callahan is a member of the OSU Board of Trustees and is serving as chair of the OSU Presidential Search Committee. Mr. Callahan is a founding member of the OSU Board of Trustees and served as its inaugural vice chair from 2014 to 2018. He currently serves on the Board's Executive & Audit Committee. Mr. Callahan is the former executive vice president of Chevron Corporation. His engineering career includes serving as executive vice president of Power, Chemicals and Technology for ChevronTexaco Corp., president of Chevron Oil Bahamas Limited, and president of Warren Petroleum Company. Mr. Callahan is a former director of the Oklahoma Nature Conservancy. For two decades, he has been a committed supporter of OSU, and he currently serves on OSU’s Executive Commercial Advisory Committee, the College of Engineering Advisory Board and the College of Engineering’s Chemical, Biological, and Environmental Engineering Advisory Board. Mr. Callahan is a Lifetime Trustee of the OSU Foundation Board of Trustees, having served as chair of the board and trustee liaison on the Harvey Ranch (OSU Animal Sciences) Corporate Board. He has a bachelor’s degree in chemical engineering from Oregon State University.