Fractured basement reservoir for abroad have been found closely follow after, in world, and have been showed a new area of oil and gas exploration. Fractured reservoir is key factor of high producing for La Concepcion basement reservoir, fractured basement reservoir are mainly distributed high-place of basement structure, and both sides of basement hill. Vertical migration due to rock dilatancy, as well as lateral up-dip migration through faults, is the suggested mechanisms responsible to charge reservoirs.