Alan Armstrong was the Executive Chairman of the Board of Directors at Williams Companies, a leading provider of energy infrastructure in North America. Appointed to the role in July 2025, Armstrong transitioned from his long-standing position as president and CEO, a role he held since 2011.

Prior to being named CEO of Williams, Armstrong led the company’s North American midstream and olefins businesses through a period of growth and expansion as Senior Vice President – Midstream. He also served in a number of operational and commercial roles in various business units at Williams. Armstrong began his career at Williams nearly four decades ago as an engineer and steadily rose through the ranks, demonstrating a deep commitment to operational excellence, strategic growth and environmental stewardship.

Armstrong is the former Chair of the National Petroleum Council and a founding member of Natural Allies for a Clean Energy Future. He served as Chair of the Board of Trustees for the University of Oklahoma Foundation and was a board member for BOK Financial Corp. In addition, he is the former Chair of Junior Achievement USA. Armstrong earned his bachelor’s degree in civil engineering from the University of Oklahoma.