The Cenomanian Upper Bahariya Formation is an attractive petroleum exploration target in north Western Desert, The present work deals mainly with the interpretation of geophysical data to evaluate the hydrocarbon potential of Upper Bahariya Formation in the Um Baraka oil field. This was achieved by interpretation of fifteen 2D seismic lines to determine the subsurface structure and tectonic history of the study area and four wells scattered in the area of study. The structural evaluation is represented by construction of time and depth structural contour maps on top of Upper Bahariya Formation. Well-log analysis was carried out to throw more light on the subsurface Formation evaluation in the study area. All the resulted of petrophysical parameters are represented vertically as litho-saturation cross-plots and laterally in different iso-parameteric maps, such as effective porosity (Φeff), shale content (Vsh), net-pay thickness and hydrocarbon saturation (Sh) variation maps. These maps revealed that the promising hydrocarbon bearing zones are characterized by their low clay contents, moderate effective porosities, thick net-pay, and high hydrocarbon saturations. The integration of seismic data with borehole data shows that the Cretaceous rocks forms a horst block separating Um Baraka field to north and south Um Baraka field by two sets of normal faults. And there is one fold in the area of study (roll over anticline fold).