Mr. Sims has served as a director and Chief Executive Officer of our general partner since August 2006 and Chairman of the Board of our general partner since October 2012. Mr. Sims was affiliated with Leviathan Gas Pipeline Partners L.P. from 1992 to 1999, serving as the Chief Executive Officer and a director beginning in 1993 until he left to pursue personal interests, including investments. Leviathan (subsequently known as El Paso Energy Partners L.P. and then GulfTerra Energy Partners L.P.) was an NYSE listed master limited partnership. Mr. Sims has an established track record of developing strong companies and has led his companies through a period of substantial growth while increasing geographic and operational diversity. Mr. Sims provides leadership skills, executive management experience, and significant knowledge of our business environment, which he has gained through his experience with other MLPs.
Ms. Jesulaitis has served as Chief Financial Officer and Chief Legal Officer of our general partner since April 2023. Ms. Jesulaitis leads Genesis’ accounting, finance, and legal organizations, including financial reporting, capital markets execution, treasury, and cash management. She also oversees all legal matters of Genesis, including those related to acquisitions and commercial transactions, compliance and regulatory affairs, corporate governance, finance, securities, and sustainability. Previously, Ms. Jesulaitis served as Chief Legal Officer and Senior Vice President of our general partner from July 2011 until April 2023. Prior to joining Genesis, she was a partner at the law firm Akin Gump Strauss Hauer & Feld LLP, principally engaged in the areas of corporate and securities law, with primary focus in the midstream energy sector.
Mr. Sims has served as President and Chief Commercial Officer of our general partner since April 2023. He is responsible for the execution of Genesis’ long-term strategy and the ultimate leadership of our commercial, operational, corporate development, planning, investor relations, and financial activities. Mr. Sims joined Genesis in 2011 and most recently served as Senior Vice President, Finance and Corporate Development of our general partner from March 2019 to April 2023, where he was responsible for the corporate development, planning, and investor relations functions. Prior to joining Genesis, Mr. Sims spent six years in the investment banking industry.
Mr. Flynn has served as Executive Vice President of our general partner and President of Genesis Alkali since Genesis acquired that business from Tronox Ltd. in September 2017. Prior to joining Genesis, Mr. Flynn worked for Tronox Corporation as Executive Vice President and President of Tronox Alkali since April 2015 and was with FMC Corporation for 33 years, serving most recently as President FMC Minerals. Mr. Flynn is currently Chairman of the Board of Directors of the American Natural Soda Ash Corporation (ANSAC) and previously served as a member of the Board of the Industrial Minerals Association of North America (IMA-NA).
Mr. Deere has served as Chief Administrative Officer of our general partner since April 2023, where he is responsible for Genesis’ information technology, internal audit, and human resources functions. Prior to Genesis, Mr. Deere served as Vice President, Accounting and Reporting at Royal Dutch Shell from 2003 to 2008.
Mr. Nicol has served as Senior Vice President of our general partner since April 2023. He is responsible for Genesis’ accounting and financial reporting organizations. Mr. Nicol joined Genesis in June 2014 in the finance and accounting department and has held oversight roles with increasing levels of responsibility. Prior to Genesis, Mr. Nicol worked in the audit practice at KPMG LLP for approximately six years.
Mr. Gaspard has served as Vice President of our general partner since January 2017. He is responsible for the operational aspects of our onshore and offshore pipelines, rail facilities, terminals, offshore facilities and assets, engineering, trucking, and health, safety, security, and environmental compliance. Mr. Gaspard joined Genesis in 2015 as a result of our acquisition of the offshore Gulf of Mexico assets from Enterprise Products Partners L.P. and has had responsibility for the operational aspects of our offshore assets since that time. Prior to Genesis, Mr. Gaspard served in various capacities within Enterprise Products’ operations including underground gas storage, natural gas liquids, natural gas pipelines, and offshore operations.
Mr. Rainsberger has served as Senior Vice President of our general partner since April 2023. He is responsible for the commercial aspects of our offshore pipelines. Mr. Rainsberger joined Genesis in 2010 and has served as Vice President of our general partner since 2019. Previously, Mr. Rainsberger was responsible for the corporate development and planning functions. Prior to joining Genesis, Mr. Rainsberger worked in the investment banking industry.
Mr. Alexander has served as Vice President of our general partner since November 2014. Mr. Alexander is responsible for the commercial aspects of our Marine Transportation segment. Since 2008, Mr. Alexander has served in various capacities within our marine operations.
Mr. Rasmussen has served as Vice President of our general partner since April 2023 and is responsible for the commercial aspects of our Sulfur Services business. Mr. Rasmussen Joined Genesis in 2017 as a result of our acquisition of the soda ash business, where he most recently served as Director of Specialty Products. Prior to joining Genesis, he spent 15 years with FMC Corporation.
Ms. Holbrook has served as Vice President of our general partner since August 2020 and is responsible for our human resources organization. Ms. Holbrook joined Genesis as Director of Human Resources and Employee Relations in 2019. Prior to joining Genesis, Ms. Holbrook was the Human Resources Director for Terra Energy Partners, a privately held oil and gas producer headquartered in Houston, Texas. She also spent 15 years with Occidental Petroleum Corporation working in various U.S. and international human resources leadership roles.