Abstract: The accurate information of oil and gas reserves is required for development of oil and gas field. Therefore, reserves need to be evaluated with increasing of data availability, especially, production and pressure. This research is intended to calculate the Original Oil in Place (OOIP) based on the latest data by using straight-line equation of material balance method. The result of reserve estimation is compared to the volumetric calculation. As part of the research, the type of drive mechanism is also analyzed, so that, the right material balance method can be selected to evaluate oil and gas reserve. The type of drive mechanism is evaluated by several methods such as by using the history production performance, drive index and Ganesh Thakur method. The result of Original Oil in Place (OOIP) calculation by using the material balance method is not too different with result of volumetric estimation. Furthermore, decline curve analysis method is used to estimate the base line of oil production. By assuming there is no change in a number of production wells and well completion, it can be estimated the maximum oil recoverable reserve and remaining reserve until the economic limit.