Fire is, in many respects, a devastating element that once unleashed can be the cause of both human casualties and significant material damages. Indeed, fire claims the lives of many victims and destroys property and environment every year. The losses are in the majority of cases very heavy and especially when the fire hits a hydrocarbon structure. The Hydrocarbon industry is unfortunately on a daily basis the target of this unforgiving enemy that can turn everything into ashes in just few moments. Consequently, the task of fighting and extinguishing of pot or tank fires is often a difficult and time-consuming process. The use of fluid gases or hydrocarbons at temperatures close to their ignition temperature can therefore make each plant, workshop, transport, or even activity as dangerous and any failure can cause a devastating fire. The causes of this type of fire are various and of different origins. The most common are the natural causes such as lightning, floods, earthquakes in addition to technical causes ex, leaks and organizational or human ones such as overflow during filling, maintenance or welding. Hence, the increasing interest in research and accidents analysis and the continuous development of fire extinguishing means. One of the factors that make the task of providing reliable and comprehensive overview of preventive measures more challenging is the multiple uses of hydrocarbons in a large array of working situation. In this context, we will study the dimensioning of the anti-fire network and its conformity with the applicable regulations at the level of the fuel area of the oil company NAFTAL EL KHROUB. Our work aims to answer the questions that are always asked: what are the measures to take to eliminate or reduce the consequences of this risk in the event of an accident? As fields of application, we have chosen NAFTAL, which is a joint-stock company, subsidiary of SONATRACH, whose mission is the marketing and distribution of petroleum products.