Two wells were drilled in Offshore Sarawak, namely Well S2, an appraisal well positioned downdip of Well S1, a discovery well, with objectives to enhance the understanding of the resource potential to fully evaluate the reservoir quality and hydrocarbon potential of Cycle II gas-bearing sands. The well evaluation program in both Well S1 and S2 incorporated Logging While Drilling (LWD) and wireline logging. Rotary sidewall cores were obtained in Well S2 and were analysed for comprehensive lithology and rock properties, while Modular Formation Dynamics Tester (MDT) was used for extensive formation testing and fluid sampling to determine the fluid types and contacts. Extended well testing post-completion was performed for selected gas-bearing reservoirs within Cycle II to gather fluid properties for reservoir characterization and production potential assessment. To meet the objective of the study in this field, a comprehensive petrophysical evaluation was conducted by integrating all data obtained in these two wells. Reservoir properties such as lithology, volume of shale, porosity, permeability, and water saturation are the basic inputs required for building static geological model and dynamic reservoir model. This case study presents a comprehensive petrophysical evaluation of the two wells, to enhance our understanding of the Cycle II reservoir sands.