Rebecca B. Roberts served as President of Chevron Pipe Line Company from 2006 until her 2011 retirement and as President of Chevron Global Power Generation from 2003 to 2006, over a 36-year career at Chevron that began as a chemist and research scientist. She joined AbbVie's board in 2018. Ms. Roberts serves on the Nominations & Governance and Public Policy & Sustainability committees. She previously served as a director of Enbridge, Inc., Black Hills Corporation and MSA Safety Incorporated.