Cynthia Vanderwall

President / CEO

President and Chief Executive Officer, Cynthia T. Vanderwall, has over 40 years of experience and active involvement in the day-to-day operations of General Petroleum. After earning her bachelor’s degree from the University of Toledo, she went on to attend courses at the University of Toledo College of Law while also holding a management position in the Lucas County Court System. In May of 1978, Ms. Vanderwall—along with her family—acquired General Petroleum, Inc. Upon acquisition, she became Vice President of the company—a position she held until 2005, when she was named President. Upon purchasing her partner’s shares in the company, Ms. Vanderwall officially became both President and CEO of General Petroleum in July of 2016. She is exceedingly proud of the growth that GPI has seen over the past 40 years and is excited about what the future holds. She is also pleased to share that GPI recently received its Certification with the Women’s Business Enterprise National Council.

Craig Vanderwall

Vice President and Chief Operating Officer

As Vice President and Chief Operating Officer, Craig helps to oversee the day to day operations at General Petroleum. Since General Petroleum is a family-owned business, Craig has grown up with the company and since joining the team full-time in 2004, he has worked in a variety of different departments. Those departments include operations, customer service, purchasing, administration, and sales. Throughout his time in each department, he has continued to carry with him his belief in servant-based leadership. Outside of General Petroleum, he has become very involved in the NE Indiana community through his involvement with the National Kidney Foundation, the Leukemia and Lymphoma Society of Indiana, and the University of Saint Francis. It was at the University of Saint Francis where he earned his degree in psychology.

Stephanie Baer

Chief Financial Officer

With over a decade of experience in the oil and gas industry, Stephanie Baer serves as the Chief Financial Officer at General Petroleum, Inc. She is responsible for leading and executing the day-to-day financial administrative duties of the company. Stephanie also leads the Customer Service team, serving as team supervisor and mentor. She thoroughly enjoys serving as a leader at GPI and takes great satisfaction in supporting the sales and customer service teams. Stephanie believes GPI’s dedicated vendors and customers are what truly make GPI an outstanding company.

Rick Tudico

Senior Vice President of Administration

Rick Tudico has been with General Petroleum for 26 years, as the Purchasing Manager. He has worked closely with ExxonMobil Fuels & Lubricants Company, Quaker Houghton Coolants, and QualiChem Coolants for placing General Petroleum Orders. Rick has an AAS Degree in Business from Indiana University – Purdue University, Fort Wayne, IN, June, 2010. He had also attended Taylor University, Fort Wayne, IN. Prior to General Petroleum, Rick worked at Rogers Markets for 16 years.

Ramon Rivera

Sales Manager

Ramon joined the General Petroleum team as Operations Manager in 2021, then was promoted to Sales Manager in 2024. He received his Bachelor of Science in Business Management and Master of Science in Management and Leadership from Western Governors University. As Sales Manager, he enjoys creating solutions that showcase General Petroleum’s continued dedication to meet customer needs. When he isn’t working, you can find Ramon spending time with his wife and four daughters or out golfing.

Jake Dennis

Operations Manager - Lebanon

Jake Dennis joined General Petroleum in 2020 after a decade-long career in the chemical industry as a lead driver/field representative. Following an injury, Jake began work in the Indianapolis warehouse, taking on additional duties which led to his promotion to Warehouse Supervisor in 2022. In 2024, Jake further expanded his responsibilities, assuming the role of Operations Manager for the Lebanon location. Jake’s contributions to GPI’s growth include overseeing warehouse operations, inventory management, fleet coordination, and personnel supervision.

Thelma Mulberger

Purchasing Manager

Thelma Mulberger brings over a decade of diverse administrative and customer service experience across industries including manufacturing, oil and gas, and real estate. She has a bachelor’s degree from De La Salle University-Dasmarinas and a certificate in Supply Chain Management & Logistics from Ivy Tech Community College. Thelma started as a Customer Service Representative at GPI in July 2021. Her strong foundation in business administration and logistics quickly earned her the role of Purchasing Manager in 2024. Thelma loves working at GPI because of the level of teamwork, collaboration, approachability and support she gets from her coworkers.

Matt Geiger

Operations Manager - Fort Wayne

Matt Geiger brings over 20 years of trucking industry experience to his role as Operations Manager at General Petroleum in Fort Wayne. Previously serving as an operations manager at a smaller oil company, Matt has a diverse background that includes driving, mechanics, and managerial responsibilities. In his current role, Matt coordinates warehouse activities such as shipping, receiving, inventory management, safety, staffing, and housekeeping. Matt’s favorite things about working at GPI are the people, the opportunity to learn new skills, and navigating problems that can arise when working in the oil industry.