Kayne Anderson MLP Investment Company operates as a nondiversified, closed-end management investment company. It invests primarily in energy-related master limited partnerships and their affiliates. The fund also invests in midstream energy companies, which engage in gathering, transporting, processing, storing, refining, distributing, mining, or marketing of natural gas, natural gas liquids, crude oil, refined petroleum products, or coal. Kayne Anderson Capital Advisors, L.P. serves as the investment adviser of the fund. Kayne Anderson MLP was founded in 2004 and is based in Los Angeles, California.