The Greater Burgan Field of Kuwait has been producing for 57 years.' The massive sandstone reservoirs have contributed the bulk of oil production. Large reserves are situated in interbedded sandstone reservoirs and will play a critical role in future Greater Burgan development. The current challenge is how to develop these reservoirs that have high uncertainty in net pay. In the recent past, several wells were completed in the interbedded sandstone sequences and no flow was reported. As a result, a review of log, core, fluid, well tests, PLT, pressure data, and the method of net pay determination has been :done. The team's objective has been to develop an integrated understanding of the net pay intervals that can contribute to flow at a given API, viscosity, depth, and reservoir pressure. It is assumed that artificial lift may be available, and that drilling, workover, and completion practices do not result in any permeability or perforation damage. A conceptual model has been set up to study all the related parameters and to prove what contributes to making the well flow. Our simulation model includes vertical lift performance for the tubing size, the depth of the reservoir, and the hydrocarbon properties. The model has been calibrated using log, core, PLT, and well test data. This paper represents the details of the integrated study made to redefine net pay by improving and incorporating static and dynamic data. The objective is to guide the well completion strategy for interbedded sandstone reservoirs and reduce the uncertainty of remaining oil in place and reserves. The proposed methodology will influence future investments in infill wells, artificial lift, and improved oil recovery methods.