Overview: The requirements categorization and organization tool developed within PeTWIN provides a structured approach to identifying, classifying, and organizing software requirements for Digital Twins in the oil and gas industry. The tool helps transform requirements collected from industry experts and scientific literature into a consistent and organized representation, facilitating their analysis and comparison. By grouping requirements according to their characteristics and relevance to Digital Twin development, it supports a clearer understanding of the capabilities, functionalities, and quality attributes expected from Digital Twin solutions in petroleum production.