This work aims to evaluate the efficiency of liquid bulk cargo terminals of a petrochemical company that moves oil and oil products in Brazil, using a nonparametric technique called DEA (Data Envelopment Analysis). The terminals are the main link in the petroleum supply logistics chain. Due to production of pre-salt fields, increased refining capacity and the company s limited investment and the increasing market, the pursuit of excellence in performance becomes a strategic factor for the company. This work identified which terminals can be used as benchmark, which characteristics are related in this classification. The variables used to determine the efficiency were: the total cargo throughput, the number of workers, the number of berths and time of operation. The results suggest that the terminals efficiency differs by regions. The study also identifies the contribution of inputs and products for efficiency levels, as well as the causes of inefficiency. Therefore, the conclusions reached are to assist decision makers in their strategic actions.