Rocky Dewbre, 53, has served as a Director of Core-Mark since January 2019. Mr. Dewbre was the Chief Executive Officer of Empire Petroleum Partners, LLC in Dallas, Texas from September 2017 to April 2019, and continues to serve as an advisor to its board. He served as a board member for CST Brands, Inc. from 2016 until 2017 when it was acquired by Alimentation Couche-Tard. Prior to CST Brands’ board, Mr. Dewbre served as Executive Vice President at SUNOCO LP from 2014 to 2015. From 1992 until 2014, Mr. Dewbre served in a variety of leadership positions at Susser Holdings Corporation (“Susser”). Prior to Susser, he worked for Atlantic Richfield as an internal auditor and Deloitte & Touche as an auditor. Mr. Dewbre has a B.B.A. from Texas Tech University in Accounting and Management Information Systems and an MBA from the University of Texas at Austin. He also completed the Authentic Leadership Development program at Harvard University. Mr. Dewbre was nominated to serve on the Board of Core-Mark based on his extensive experience in the convenience retail industry and his financial expertise.