Abstract: An available oil reservoir managing information system is presented based on necessity of information construction in oil field and analysis of factors of reservoir information. The oil reservoir managing information system is developed based on Mapinfo, with respect to practical questions that happen during the course of exploration of oil field. The system is made up of two modules. They are static information management and dynamic information management. The former includes these capabilities: visualization of geographic data, search and analysis of data, creating special thesis map, querying well history and registering data. The latter includes drawing IPR curve and some other capabilities.