Finding the best locations to drill in hydrocarbon reservoirs is challenging, particularly in areas with complex geology. To reduce drilling risks and improve productivity, it is important to accurately understand the reservoir’s quality and geomechanical properties. In this study, 3D seismic data were combined with logs from three wells to reduce uncertainty and identify optimal drilling locations in the Nahr-Umr Formation. Geomechanical properties were calculated using pre-stack inversion and then analyzed. These values were normalized using the min-max method and merged into a single petro-geomechanical index (TPG). This index helped create a map showing reservoir quality. A separate attribute was also developed to estimate hydrocarbon potential. This was combined with a reservoir thickness map and a 3D structural model to build a complete system for choosing drilling locations. The best drilling spot was found at the top of an anticline, where reservoir quality is good, hydrocarbon potential is high, and mechanical conditions are stable. A review of the field’s average geomechanical properties showed that, although the Poisson’s ratio is low (indicating brittle rock), the high Young’s modulus, medium density, and good compressive strength help keep the wellbore stable when proper drilling practices are followed.