The geophysical surveys on the Syrian oil fields had begun since (1933);it continued by the soviet groups (1952-1962) and were completed by the Syrian national groups. The Derro oil field had a good lot from these studies, because it was surveyed and studied by the all known geophysical methods (gravity, geoelectrics, siesmics, well logging). This was possiple due to the fact that oil bearing formation in the above mentioned field lays in very shallow depths, in comparison with the known oil fields, the geoelectrical method was applied with good results and extreme low cost.