Our Leadership
Guiding Excellence: Inspiring Vision, Empowering Success
TransMontaigne has built a world-class executive team that has decades of experience in the energy industry, a record of success, and an ability to enhance value for our customers, partners, employees, and shareholders.
Jesse Arenivas
Chief Executive Officer
Jesse Arenivas has served as Chief Executive Officer of TransMontaigne Partners and its subsidiaries since September 2025. Jesse has over 25 years of experience in the energy industry. Before joining TransMontaigne, Jesse served as CEO of EnLink Midstream LLC from 2022 to 2025. Prior to EnLink, he served in several executive roles with Kinder Morgan, Inc. (“KMI”), including President of KMI’s Energy Transition Ventures team and Vice President (President, CO2 segment). Before joining KMI in 2003, he spent five years at ConocoPhillips Co. in financial and commercial roles. Jesse received a Bachelor of Business Administration in finance from the University of Texas Permian Basin and is a licensed Certified Public Accountant.
Rob Fuller
Chief Financial Officer
Rob Fuller has served as Executive Vice President, Chief Financial Officer, Chief Accounting Officer, and Treasurer of TransMontaigne Partners and its subsidiaries since November 2014. Before his tenure at TransMontaigne, Rob served as Vice President and Chief Accounting Officer of TransMontaigne Partners and its affiliates since January 2011 and as its Assistant Treasurer since February 2012. Prior to his affiliation with TransMontaigne, Rob spent 13 years as a certified public accountant with KPMG LLP. Rob has a B.A. in Political Science from Fort Lewis College and an M.A. from the University of Colorado. Rob is licensed as a certified public accountant in Colorado and New York.
Matt White
General Counsel & Secretary
Matt White has served as Executive Vice President, General Counsel, and Secretary of TransMontaigne Partners and its subsidiaries since September 2021. Matt has served in a variety of roles at TransMontaigne and its affiliates starting in March 2015, including as Senior Vice President, Assistant General Counsel. Prior to joining TransMontaigne, Matt was in-house counsel to Oracle America, Inc. and practiced at the law firm of Morrison & Foerster LLP. Matt received a B.S. in Civil Engineering from the United States Military Academy and a J.D. and M.B.A. from the University of Denver.
Shawn Mongold
Chief Operating Officer
Shawn Mongold has served as Chief Operating Officer of TransMontaigne Partners and its subsidiaries since March 2023. Shawn previously served as Senior Vice President of Engineering and Technical Services from August 2017. Shawn joined a former affiliate of the company in 1996 as a staff engineer and has held several positions, including appointment to Director of Operations Technical Services in 2002, Executive Director of Technical Services in 2005, Vice President of Operations and Technical Services in 2008, and Senior Vice President of Engineering and Technical Services in 2017. Prior to his affiliation with the company, Shawn worked for Mid-America Pipeline Company and OXY USA. Shawn earned a Bachelor’s Degree in Electrical Engineering from Oklahoma State University and holds licenses as a Professional Engineer and a Master Electrician.
Karl Bernard
Senior Vice President, Operations
Dennis DiPietro
Senior Vice President, Operations
Michael Hammell
Senior Vice President, Special Counsel & Assistant Secretary
Bett Lucas
Senior Vice President, Commercial
Justin Ranes
Senior Vice President, Project Management
Dawn Reddel
Senior Vice President, Human Resources
Jill Airington Grooms
Vice President, Accounting
Lisa Kearney
Vice President, Chief Accounting Officer
Matthew Kolata
Vice President, Environmental, Safety, & Occupational Health
Charlie Lewis
Vice President, Technical Services
Ashlee Ruddell
Vice President, Business Development
Bryan Webb
Vice President, Engineering
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Why TransMontaigne
TransMontaigne is a Leader in the Bulk Liquids Logistics Industry, Providing Exceptional Service and Operational Support.
Sustainability
At TransMontaigne, sustainability has always been at the core of our business philosophy. Since 1995, we have focused on long-term, sustainable operations & disciplined management.
Operations
We are a terminaling and transportation company with assets and operations in the United States along the Gulf Coast; in the Midwest; in Houston and Brownsville, Texas; along the Mississippi and Ohio Rivers; in the Southeast; and along the West Coast.