Tortoise Energy Infrastructure Corporation is a closed ended equity mutual fund launched and managed by Tortoise Capital Advisors LLC The fund invests in the public equity markets of the United States It seeks to invest in the stocks of companies operating in the energy infrastructure sector with an emphasis on those companies that are engaged in transporting processing storing distributing or marketing natural gas natural gas liquids primarily propane coal crude oil or refined petroleum products or exploring developing managing or producing such commodities The fund primarily invests in securities of publicly traded Master Limited Partnerships and stocks of companies having a market capitalization greater than 100 million Tortoise Energy Infrastructure Corporation was formed on October 29 2003 and is domiciled in the United States