Western Petroleum is a large marketer of petroleum products. Its US headquarters is close to the intersection of 494 and 169. The company supplies gasolines, lubricants, diesel and biodiesel, propane, ethanol, aviation fuels, and other products to customers around the country. Western Petroleum operates extensive supply and distribution systems, including rail and truck channels. It also has knowledgeable regional service representatives to attend to the needs of each client.