Kirby Corporation announced the appointment of Rocky B. Dewbre as a new independent member of the Company's Board, effective immediately, pursuant to a cooperation agreement with Kirby shareholder JCP Investment Management, LLC (JCP). Following the appointment of Mr. Dewbre, the Kirby Board of Directors will expand to eleven directors, nine of whom are independent. Since 2020, Mr. Dewbre has served as President and COO of Mansfield Service Partners, a motor fuels and lubricants distributor.

From 2019 to 2021, Mr. Dewbre served on the board of directors and as a member of the audit and compensation committees of Core-Mark Holding Company, a grocery distribution company, until it was acquired by Performance Food Group Company in 2021. From 2017 to 2019, Mr. Dewbre served as CEO of Empire Petroleum Partners, LLC, a motor fuels distributor. From 2016 to 2017, Mr. Dewbre served on the board of directors and as a member of the audit committee for CST Brands Inc., a convenience retailer, until the sale of the company to Alimentation Couche-Tard.

From 2013 to 2014, Mr. Dewbre served as Chief Executive Officer of Susser Petroleum Partners, LP, a distributor of motor fuels, until it was acquired by Energy Transfer Partners in 2014. Prior to becoming CEO, Mr. Dewbre served in various leadership roles within Susser Petroleum Partners, LP from 1992 to 2013, including President and COO of two different operating divisions and Chief Financial Officer. From 1988 to 1992, Mr. Dewbre was an auditor and consultant with Deloitte & Touche, LLP.

Mr. Dewbre holds a bachelor's degree in Accounting and Management Information Systems from Texas Tech University, and a master's degree in Business Administration from the University of Texas at Austin. He is a registered Certified Public Accountant in Texas.