Management Team

Greg Henderson was appointed Southeast Gas’ President and Chief Executive Officer in 2006. Henderson joined Southeast Gas as Director of Finance and Administration and Chief Financial Officer in 1998. Prior to joining Southeast Gas, he was employed by PowerSouth Energy for 12 years and PriceWaterhouseCoopers LLP in Birmingham for 3 years. He currently serves as Immediate Past Chair of American Public Gas Association (APGA) and on the Boards of Economic Development Partnership of Alabama, Auburn School of Accountancy Alumni Advisory, Easter Seals of Alabama, and CCB Community Bank. He is Past President of Alabama Natural Gas Association, Andalusia Chamber of Commerce, Andalusia Rotary Club, and LBW Community College Foundation. Henderson is Certified Public Accountant, and a graduate of Auburn University with a degree in Business Administration/Accounting.

Lori Messick is Southeast Gas’ Director of Finance and Administration and Chief Financial Officer and is a Certified Public Accountant. She oversees the daily operations of the accounting, auditing, warehouse, accounts payable, payroll, property management and information services areas of the company. She is responsible for financial reporting, credit ratings, long-term debt management and Southeast Gas’ insurance programs. Messick began working with Southeast Gas in 2001 as a General Accountant. She also served in the roles of Accounting Supervisor and Budget and Reporting Manager before assuming her current role with the company in 2016. Messick joined Southeast Gas with 10 years prior accounting experience, as well.

Brian Gilliland is Southeast Gas’ Director of Gas Management. Gilliland is responsible for industrial accounts and contract negotiations for those accounts. He oversees the company’s natural gas purchases and the coordination of gas control functions, including gas supply planning and hedging activities and gas scheduling. Prior to joining Southeast Gas, Gilliland worked with Kinder Morgan/Gulf LNG Energy as a Terminal Manager, a position in which he was responsible for managing and directing the 38 employees at Gulf LNG Energy including the maintenance and operations departments at the terminal. He brings 25 years of natural gas experience to his role on the executive team for Southeast Gas.

Shannon Jackson is the Director of Corporate Services for Southeast Gas. She oversees the company’s human resources, safety, sales, communication, and marketing functions. She is a member of the Energy Solutions Center Board of Directors, serves on the American Public Gas Association Research Foundation Board, and is Public Relations chair for the Alabama Natural Gas Association. She joined the company in 1998 as Communication Coordinator, and also served in the roles of Marketing and Communications Manager and Director of Marketing and Communications before assuming her role as Director of Corporate Services in 2022.

Vince Perez is the Director of Economic Development for Southeast Gas. He directs the global and regional economic development initiatives of Southeast Gas and works with various organizations to promote economic growth across Southeast Alabama. Prior to joining Southeast Gas in 2022, Perez served as a Senior Project Manager with the Alabama Department of Commerce. Perez graduated from Auburn University with a Bachelor of Science degree in Business Administration in 2013.

Jimmy Black is the Director of Community Development for Southeast Gas. He directs the community development funding initiatives of the company and works with various organizations across the Southeast Gas service area to promote community growth. Black joined the company in 2004 as a Marketing Representative and later promoted into the roles of Operations Coordinator,  Operations Manager, and Director of Operations for the Western Division of the company before accepting his current role in 2022.

Steve Duebelt is the Director of Operations for Southeast Gas’ Eastern Division. He oversees system operations and maintenance at Southeast Gas facilities in Dothan, Abbeville, Eufaula, Headland, Opelika, and the surrounding communities. He is also responsible for the areas of customer experience, meter reading, system service, construction, installation and collections in the Eastern Division. Duebelt joined the company in 1981 as a Meter Technician and served in many operational areas within the company. In 1992, he became Information Services Manager, and remained in that position until accepting his current role in 2006.

Terry Barnes, a registered Professional Engineer in the State of Alabama, is the Director of Operations for Southeast Gas’ Central and Western Divisions. He oversees system operations and maintenance at Southeast Gas facilities in Andalusia, Brundidge, Daleville, Elba, Enterprise, Fort Deposit, Greenville, Luverne, Montgomery, Opelika, Opp, Ozark, Pike Road, and Troy, as well as the surrounding communities. He is also responsible for the areas of customer experience, meter reading, system service, construction, installation and collections in the Central and Western Divisions. Barnes joined the company in 2011 as Superintendent of Operations and served in that capacity until 2013. Prior to his career with Southeast Gas, Barnes worked seven years for CDG Engineers as a Project Engineer/Project Manager.

Tyler Wingard is the Superintendent of Engineering Services for Southeast Gas. He is responsible for system maintenance, infrastructure routing and design, right of way procurement and maintenance, GIS and system design and modeling. Wingard joined the company in 2011 as an Engineer, and served in progressive roles within the company until he was named Superintendent of Engineering Services in July of 2022.