A company s operational success depends a lot on how the supply chain is managed. Due to its strategic role, proper management can provide a series of benefits, increasing your competitiveness and computing the profitability of your business. This dissertation evaluates through a case study, the supply chain of Petrobras goods, specifically in the area of relationship with suppliers and strategies for contracting goods. The supply processes, specifically in the area of purchasing goods, were analyzed using the SCOR methodology as a basis in relation to purchasing processes, deadlines, material costs, supply channels and strategic planning, and then the main bottlenecks (gaps) were identified. and process risks related to internal standards, legal requirements and relationship with the supplier merchant. Future improvements were also indicated that can be implemented in these processes in order to contribute to efficiency improvements in purchasing processes in the goods supply chain and relationship with the market. In addition to the academic contribution, this work provides clarification to the business community about the benefits that the SCOR methodology can bring to the management of supply chains, in addition to operational improvement practices. Finally, in this case study, improvement opportunities were identified based on process bottlenecks identified as Current Disconnects, and future state opportunities were defined for supplier relationship processes and hiring strategies.