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Anne-Marie N. Ainsworth

Retired President and CEO, general partner of Oiltanking Partners, L.P. and Oiltanking Holding Americas, Inc.
Ms. Ainsworth served as President and Chief Executive Officer of Oiltanking Partners, L.P. and of Oiltanking Holding Americas, Inc. from 2012 until her retirement in 2014. Ms. Ainsworth was Senior Vice President of Refining for Sunoco, Inc. (2009-2012) and previously was the General Manager of the Motiva Enterprises, LLC refinery in Norco, LA (2006-2009). Before she joined Motiva, Ms. Ainsworth was director of process safety management (2003-2006) and Vice President of Technical Assurance at Shell Deer Park Refining Company (2000-2003). Ms. Ainsworth serves as a member of the Company’s Audit Committee. She is currently on the boards of Pembina Pipeline Corporation (serves as chair of its safety and environment committee and a member of its major projects committee), HollyFrontier Corporation (member of the environmental, health, safety, and public policy committee and a member of its finance committee), and Archrock, Inc. (serves as chair of its nominating and corporate governance committee and a member of its audit committee). Ms. Ainsworth graduated from the University of Toledo with a Bachelor of Science in Chemical Engineering, and she holds a Masters in Business Administration from Rice University where she served as an adjunct professor (2000-2009). She is also a graduate of the Institute of Corporate Directors Education Program (Rotman School of Management, University of Toronto) and holds the ICD.D designation.

Ms. Ainsworth has over 35 years of experience in executive and managerial positions in the United States refining industry with companies providing services for products that included crude oil and refined petroleum products, which constitute a significant percentage of the cargoes carried by the Company’s marine transportation business. She also has served as Chief Executive Officer of a public company.
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