TORTOISE ENERGY INDEPENDENCE FUND, INC., also called Tortoise Energy Independence Fund, is a close end investment fund. Its objective is to provide shareholder a high level of total return with an emphasis on current distribution. Read More It seeks to invest in a portfolio of equity securities of companies that promote energy independence through the development of the North American energy landscape. It intends to focus on North American energy companies that engage in the exploration and production of crude oil, condensate, and natural gas. The company was founded in June 2012 and is headquartered in Leawood, KS. The listed name for NDP is TORTOISE ENERGY INDEPENDENCE FUND, INC.