Mr. Harry N. Pefanis is a Lead Independent Director at Oasis Midstream Partners LP, an Independent Director at OMP GP LLC, a President & Director at PAA GP Holdings LLC, a President & Director at Plains GP Holdings LP, a President & Non-Independent Director at Plains All American Pipeline LP, a President, Director & Chief Commercial Officer at Plains All American GP LLC, a President & Chief Compliance Officer at PAA GP LLC and a Chairman at Association of Oil Pipelines. He is on the Board of Directors at Oasis Midstream Partners LP, OMP GP LLC, PAA GP Holdings LLC, Plains GP Holdings LP, PAA Natural Gas Storage LLC, PNGS GP LLC, Plains All American Pipeline LP, Plains All American GP LLC, American Petroleum Institute, Inc., Memorial Hermann Foundation, Settoon Towing LLC and PAA Natural Gas Storage LP. Mr. Pefanis was previously employed as an Executive Vice President-Midstream Division by Plains Resources, Inc. and an Auditor by Pricewaterhouse & Co. He also served on the board at PAA/Vulcan Gas Storage LLC. He received his undergraduate degree from the University of Oklahoma.