Chairman and CEO
Board of Directors
Corporate Officers

James T. Hackett

​Director since 2016

With former board service from 2001 to 2015; chair of the Organization and Compensation Committee and member of the Executive and Commercial Strategies and Operational Risk Committees. President of Tessellation Services, LLC since 2013. Former executive chairman (from 2018 to 2020) and former interim chief executive officer (from 2018 to 2019) of Alta Mesa Resources, Inc. Chief executive officer of Kingfisher Midstream, LLC from 2018 to 2020. Partner of Riverstone Holdings LLC, an energy-focused private investment firm, from 2013. Former executive chairman (from 2012 to 2013) and chief executive officer (from 2003 to 2012) of Anadarko Petroleum Corporation. Mr. Hackett is also a director of Enterprise Products Holdings LLC, National Oilwell Varco, Inc. and NuScale Power Corporation.