AbstractThis paper presents the use of information models as tools for systematically assessing existing Norwegian natural gas transport operations. The models, integral parts of a systems re‐engineering process to analyze the entire transport operation, consist of a requirement traceability model, a system architecture model, a behavior model, and a context model. These models not only consistently define existing operations, but also verify how well the operations meet effectiveness measures that have been identified for the operations.Systems re‐engineering and the models derived from it are shown here to reduce the asymmetry in information that is typically present in this industry between principals and their agents (e.g., authorities vs. system owners, system owners vs. system operators, and shippers vs. shippers' dispatching representatives). Further, information modelling of an existing system is shown here to differ from the more traditional application of information modelling: to bring a new system into being.Models provide a scientific framework for evaluating how a changing business environment impacts existing operations. New legislative requirements and economic measures can be tested with models, which also allow new operational services and business opportunities to be identified and evaluated prior to implementation in actual operations.