MANAGEMENT TEAM
John Grier, Chairman
Mr. Grier was the founder and President of Crimson Resource Management, and is now the President of Crimson Midstream LLC.  Before starting Crimson, Mr. Grier was employed at Mobil Oil Corp, where he held engineering and line supervisory field positions.

Mr. Grier has a BS in Chemical Engineering from the University of Oklahoma and an MBA from Harvard University. Over the past 20 years, Mr. Grier has led Crimson as it has grown from a single oil production property numbering a few wells to nearly 400 producing wells, multiple gas distillation and processing plants, a 350-mile+ pipeline network for petroleum products, and other petroleum related operations such as materials handling, asphalt production and oil field services. 

Harry Simpson, President
Mr. Simpson is a senior operating executive with 20 years of broad management, financial and technology experience. He has served in a variety of capacities including President, COO, CFO, and Senior VP of Marketing & Business Development. Highlights of his prior experience include managing foreign exchange derivatives trading operations that transacted over $350 billion annually and founding an online financial services company, leading it through multiple rounds of financing and a public listing. In addition to his significant early-stage company development and fund-raising experience, he has also been active as an investor in, and consultant to several early-stage technology companies.

Mr. Simpson is a graduate of Indiana University with a BS in Finance. As President of Crimson Renewable Energy, L.P., Mr. Simpson is focused on financial and operational management, and also leads its sales, marketing and business development activities.

Jim Hamilton, Vice President, Engineering and Operations
Since graduating from Texas A&M University in 1961, Mr. Hamilton has developed a 50-year career in the oil and gas industry as a leading process engineer. The bulk of his career has focused on natural gas processing where he directed the design, construction and start-up of over 20 gas processing projects.

For nearly 25 years, Mr. Hamilton has been a principal in various companies involved in the design and development of gas processing equipment and end-to-end modular gas processing plants. During this period, Mr. Hamilton has also designed and developed glycol and condensate processing plants. Mr. Hamilton has extensive experience in the fabrication of modular skid mounted processing systems, and has also developed a unique patent-pending process for dilutive distillation of glycols. Mr. Hamilton is responsible for the design, construction and technical operations of Crimson Renewable Energy's renewable fuels production assets.

Joe Gershen, Director of Sales & Marketing
Mr. Gershen has been a leading biodiesel marketer since 2002, pioneering efforts to develop the industry in California and around the country.  He has been instrumental in facilitating numerous fleet transitions to biodiesel, including municipal and transit bus fleets of Santa Monica, Inglewood, Beverly Hills, Pasadena and the CLIF Bar distribution fleet.  In partnership with McDonald’s supply chain partner, Golden State Foods, Mr. Gershen created a successful closed-loop solution to recycle their fryer oil into biodiesel used to power their distribution fleets.  This resulted in carbon reduction and cost savings for the company.  Strong adherence to quality control and assurance, as well as handling and use protocols have helped earn him an industry reputation for quality, service and reliability.

Mr. Gershen is the founder of Green Depot, a sustainable energy organization, and regularly works with industry groups, environmental and community organizations, regulatory agencies and state and local policy makers.