Tortoise Energy Infrastructure Total Return Fund 

This fund typically commits a substantial portion of its capital – specifically, at least 80% of its net assets combined with any borrowed funds – to the broad spectrum of energy infrastructure companies. The advisor's primary focus lies in equity ownership within the midstream infrastructure segment. However, its mandate also permits investments in midstream Master Limited Partnerships (MLPs), as well as companies involved in power generation and renewable energy infrastructure. Characterized as non-diversified, the fund concentrates its holdings rather than spreading them across a wide range of industries.