First Trust Energy Infrastructure Fund is a closed-ended equity mutual fund managed by First Trust Advisors LP and co-managed by Energy Income Partners LLC. It invests in companies operating in the energy infrastructure sector in the United States, primarily in master limited partnerships and MLP affiliates. The fund benchmarks its portfolio performance against the Philadelphia Stock Exchange Utility Index, Alerian MLP Total Return Index, and a blended index comprised of 50% Philadelphia Stock Exchange Utility Index and 50% Alerian MLP Total Return Index.