United Maritime joins the forces of three subsidiaries engaged in transporting dry bulk commodities. Operations serve deep-water ports and inland waterways in the US and abroad. The company maintains a dozen ocean-going vessels, and 20 river barges; it also owns a transfer and storage terminal and related logistics services. United Maritime's ocean-going fleet, made up of US-flag vessels, has an overall capacity of some 400,000 deadweight tons (DWT). Handled commodities include coal, grain, petroleum coke, and phosphate. United Maritime, known as TECO Transport prior to December 2007, was sold by its former parent TECO Energy to an investment group led by an affiliate of Miami-based Greenstreet Equity Partners.