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 currently serves as a director of Memorial Hermann Healthcare System and serves on the advisory boards of the Baker Institute at Rice University and Veriten. He is a member of the adjunct faculty for the University of Oklahoma’s Executive MBA in Energy program; the Advisory Board of the Cox School’s Maguire Energy Institute at Southern Methodist University; and the National Petroleum Council, where he served as Chairman from 2017 to 2019. He previously served as a director in the Federal Reserve System for eleven years, serving the last three years as Chair of The Dallas Fed, completing his term in 2021. Mr. Armstrong is a member of the Texas Business Hall of Fame and a Distinguished Alumnus of Southeastern Oklahoma State University.