Under the guidance of Prof. Dr. Victor Augusto Nascimento Magalhães, Izaldir Ângelo Pereira Lopes and Artur Saturnino Rodrigues wrote a paper aimed at analyzing the economic potential of vehicular natural gas. The work analyzed the knowledge of taxi drivers in Diamantina MG about CNG and the satisfaction of taxi drivers in Sete Lagoas MG with the product. With this work, the authors intend to attract investments that would benefit users who adopt CNG in the region and show that a CNG refueling station is a profitable project.