Supply chain management involves multiple participants, numerous uncertainties and high complexity due to an increasingly fragmented business environment that involves large financial volumes. Governance thus emerges as a way to improve the development of the entire supply chain, through a multidimensional and performance-focused approach. In the context of public administration, it is no different, for the Armed Forces the budget issue is a constant challenge, in this scope, the Brazilian Navy (MB) has sought austerity in public spending, despite the need to keep its operational means in good condition. of full efficiency, in the face of a scenario of increasing participation in social actions and operations that aim, for example, at the health of riverside populations and the fight against illicit activities. Within this context, this dissertation aims to improve MB s purchasing process in the scope of the fuel, lubricant and grease logistics chain in the light of governance precepts and mechanisms. Initially, therefore, a scoping review (RE) of the literature was carried out, resulting in a taxonomy and a framework that articulate the basic elements of the concept of governance in the logistics chain and the interactions between them, corroborating the vision of interdependence between agents chain, its processes and practices. The results of the RE were then applied in a case study at MB, through the initial analysis of official publications, the review of the current process in the light of the concepts that emerged from the RE and, finally, through interviews with experts from the RE. MB, with the objective of proposing a new purchasing process for MB by enabling more efficient processes aimed at increasing the expected performance in the purchasing process.