The Upper and Lower Safa reservoirs have become a very important exploration target in the Obaiyed field and have helped to improve exploration in the northwestern part of the Western Desert in Egypt. Therefore, the main purpose of this work is the evaluation of reservoir characteristics using the available well logging data and core data analysis in the Obayied field. The analysis revealed the average values of the petrophysical parameters of the studied zones. The integrated data has been used to support the exploration and development in the future field planning by doing more explorations in both the northwestern direction (where has more hydrocarbon bulk volume at the Upper Safa Member and has the highest formation pressure values) and the southwestern direction (where has more hydrocarbon bulk volume at the Lower Safa Member and has the highest formation pressure values) of the study area. The neutron-density log response through the zones of Upper Safa Member shows that the expected hydrocarbons will be mainly oil while the zones of Lower Safa Member show that the expected hydrocarbons will be mainly gas.