Karim Small Fields (KSF) block measuring about 70 km long and 25 km wide is located along the eastern flank of the South Oman Salt Basin. Based on the facies distribution and reservoir characteristics, the Gharif Formation is subdivide into Lower, Middle and Upper Gharif members. In the Karim Small Fields block, the Gharif Formation contains oil-bearing zones in the Lower and Middle Gharif members. This study presents a stratigraphical, petrophysical analysis and 3D geological (static) model. This study constructs a stratigraphical framework by defining the lithofacies and lithofacies associations of the Gharif Formation of the available core section. It also evaluates the rock properties, reservoir quality and hydrocarbon potentiality from petrophysical analysis and static model of the Gharif Formation within the Karim Small Fields block. Core section measuring 18.2 m length covering only the uppermost part of the Middle Gharif Member is used to conduct the stratigraphical analysis. Based on the sedimentary structure and grain size of the core section, five lithofacies are recognized; i) poorly cross-laminated coarse to granule sandstone, ii) planar laminated coarse to granule sandstone, iii) trough cross-laminated coarse to medium-grain sandstone, iv) rippled laminated fine-grain sandstone, and v) poorly cross-bedded pebbly sandstone. Based on the lithofacies, two lithofacies associations are defined; i) channel-fill facies association, and ii) crevasse splay facies association, deposited by multichannel, low sinuosity braided river system. A total of 17 wells with a basic conventional wireline logs were used to identify rock types and lithologies, calculate shale volume, total and effective porosity, permeability estimation fluids saturation, and fluid contacts of reservoir intervals for different fields. The analogy well that is used for correlation is SM-84 as the core data is only available for this well. This may create some uncertainty in the selected petrophysical parameters used in the study. The neutron-density logs give a good estimation of shale volume after correlation with the shale volume calculated from core data. The density log is then used to calculate the total and effective porosity. Based on petrophysical properties, four rock types were identified in the Gharif Formation; including sand, heterolith, shale and tight sand. The fluid saturations were calculated by the Indonesian equation due to the presence of shale units. For the permeability estimation, the permeability transform is given according to the polynomial equation y = -9795.7x4 + 8131.4x3 - 2418.7x2 + 316.12x - 13.731. The oil-water contact in each field is determined from the deep resistivity log and density log as the pressure data is not available in this study. The thickness of sand bodies decreases from the eastern and southeastern part (source area) towards the western and northwestern parts (basinal area) of the Karim Small Fields. Furthermore, the thickness variation in the Karim Small Fields block could be due to erosion effects, salt withdrawal and salt dissolution, and distance from the source area. Integration of all petrophysical analysis data led to the building of a consistent 3D geological model. A grid size of 100 m x 100 m was selected for building the 3D Grid for the structural framework. The total number of 3D grid cells is 30,810,780. The Gharif Formation was subdivided into five stratigraphic zones based on the sand bodies defined in the correlation section. The total number of vertical layers is 165. Facies model of the Gharif Formation has been established from the reservoir rock typing outcome using Truncated Gaussian Simulation. The property modeling includes effective porosity modeling by Sequential Gaussian Simulation. The volumetric calculations indicate that the total volume of oil in place is 52,680x10,3 sm3 for Karim Small Fields.