Harry N. Pefanis is a businessperson who has been the head of 6 different companies and presently occupies the position of President, Director & Chief Commercial Officer at Plains GP Holdings LP, President & Chief Commercial Officer at PAA GP LLC and President, Director & Chief Commercial Officer at Plains All American GP LLC (both are subsidiaries of Plains GP Holdings LP), President, Director & Chief Commercial Officer at PAA GP Holdings LLC and President, Chief Commercial Officer & Director at Plains All American Pipeline LP. Harry N. Pefanis is also Chairman of Association of Oil Pipelines and on the board of 8 other companies.

In his past career he occupied the position of Executive Vice President-Midstream Division at Plains Resources, Inc. and Auditor of Pricewaterhouse & Co.

Mr. Pefanis received an undergraduate degree from the University of Oklahoma.