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Mark Lashier is the CEO of Phillips 66.
A chemical engineer, he has over 30 years of experience in executive leadership roles within the energy and petrochemical industries.
Lashier previously served as President and CEO of Phillips 66 since July 2022. He served as President and Chief Operating Officer of Phillips 66 from April 2021 through June 2022. Before that, he was President and CEO of Chevron Phillips Chemical Company LLC (CPChem), a joint venture between Phillips 66 and Chevron, from 2017 to 2021. He previously held several leadership positions at CPChem, including Executive Vice President of Olefins and Polyolefins; Senior Vice President of Specialties, Aromatics and Styrenics; Vice President of Corporate Planning and Development; Project Director for Saudi Arabia; and Regional Manager in Asia.
Lashier began his career at Phillips Petroleum in 1989 as an Associate Research Engineer.
He serves on the boards of several industry groups and nonprofits, including American Fuel and Petrochemical Manufacturers, the Greater Houston Partnership, Iowa State University’s College of Engineering Industrial Advisory Council, Junior Achievement of Southeast Texas, the American Cancer Society’s CEOs Against Cancer and the Barbara Bush Houston Literacy Foundation. He also serves on the executive committee of American Petroleum Institute and is a member of the Business Roundtable, the Business Council and the National Petroleum Council.
