Kayne Anderson Mlp Investment Co is a closed-end fund that invests principally in equity securities of energy-related master limited partnerships. The company’s investment objective is to obtain a high after-tax total return by investing at least 85% of its net assets plus any borrowings in energy-related master limited partnerships and their affiliates and in other companies that, as their principal business, operate assets used in the gathering, transporting, processing, storing, refining, distributing, mining or marketing of natural gas, natural gas liquids, crude oil, refined petroleum products or coal.