Mentzer Oil is a family owned business established in 1984. Starting from an existing small bulk plant in North Platte, Nebraska, the company has grown to three unattended cardlock sites, eight convenience stores, wholesale fuel and retail bulk fuel and oil deliveries. It started with one 1200 gallon tankwagon, the owner as the driver and his wife as the bookkeeper. Currently, there are nine trucks and approximately 45 employees in the total business.