Greg L. Armstrong
Lead Director
Mr. Armstrong has been a Director of the Company since March 2005 and previously served as a Director of Varco from May 20, 2004, until its merger with the Company on March 11, 2005. Mr. Armstrong is a co-founder and former Chairman and CEO of Plains All American Pipeline, L.P., a publicly-traded master limited partnership engaged in the business of marketing, gathering, transporting, terminalling, and storing crude oil. Mr. Armstrong retired as CEO of Plains in October 2018 and as Chairman in December 2019 and continues to serve as a member of its board of directors. Mr. Armstrong has been a director of The Federal Reserve Bank of Dallas since 2015, currently serving as Chairman, and was elected to the board of Memorial Hermann Healthcare System in 2021. He is a member of the adjunct faculty for the University of Oklahoma’s Executive MBA in Energy program and the Advisory Board of the Cox School’s Maguire Energy Institute at Southern Methodist University and is the immediate past Chairman of the National Petroleum Council.
Lead Director
