Greg's Diesel Service, 3466 Shippers Dr NW, Grand Rapids, MI 49544, US

Crystal Flash is one of Michigan's largest suppliers of energy-related products and services. Its business is acquiring, processing and distributing a wide variety of energy sources to homes and businesses. The company delivers propane and heating oil to thousands of rural homes with its fleet of 100-plus trucks. It also delivers gasoline and diesel fuel to trucking companies, construction contractors and farms. Crystal Flash picks up used motor oil, oil filters and antifreeze for recycling. The company s wind turbines generate electricity that it delivers to homes and businesses through Michigan's statewide power grid. A company goal is to become the dominant provider of fuel distribution and used oil collection services in targeted territories in Michigan. Crystal Flash has been in business for more than 70 years. Its corporate office and environmental services division is in Grand Rapids, Mich. Its fuel services division is in Lowell, Mich.