Estimation of reserves and resources involves NMR, acoustic, and image log analysis, alongside core database and interpretation software. The Resource Evaluation Programme (REP) employs the widely recognized Monte-Carlo method to accurately solve volumetric equations. LogIC serves as a petrophysical analysis tool for examining NMR, image logs, sonic waveforms, and conventional well-logging datasets. The Core Chopper tool transforms boxed core images into depth-indexed strips, facilitating their integration into petrophysical software. Meanwhile, Q-SCAL is designed for the loading, storage, and analysis of various conventional and specialized core analysis data. Developed by professionals in geology and petrophysics, this software caters to practical needs encountered during exploration and production efforts. LogIC has been refined to prioritize speed, adaptability, and high-quality output, making it an essential resource for idea development, testing, and effective communication. This suite of tools collectively enhances the efficiency and accuracy of resource estimation in the industry.