international-matex tank terminals (imtt), founded in 1939 and based in new orleans, louisiana, is the owner of the largest bulk storage terminal businesses in the united states. it stores and handles petroleum products, vegetable and tropical oils, renewable fuels, and various chemicals. the company also provides support services, such as design, procurement, and construction management of retrofit and grassroots facilities in petrochemical and chemical storage facilities; inventory management; tank leasing; packaging; and heating, blending, and product services. in addition, imtt offers intra-company rail service flexible blending and transfer, customer waterfront, economical heating, petroleum reserve, and drum filling services. macquarie infrastructure group purchased 50 percent stake in 2006, and assumed full ownership in 2014.