In order to identify and evaluate the source rocks combination between  resistivity, sonic, density and level of organic metamorphism (LOM) from  three wells distributed in the central and southern part of the Gulf of Suez-Egypt is performed. Two analytical steps were carried out. The first one is  represented by identification of source/non-source intervals using the  method described by Meyer and Nederlof (1984) for calculation of  discriminant score function (D). The second step is represented by  calculation of TOC% using two methods, the first, which based on using the density information and the second was described  through  the  ΔlogR  and  the  overlay  between  the  resistivity  curve  from  one  hand and sonic, density from the other. Data from three wells were collected and analyzed using the above-mentioned techniques. The results revealed that the central onshore part is richer in total organic carbon (TOC%) when compared with the other two localities, where it is classified as good source rock.