The splitting is suggested to be carried out in the year when extracting activities start and no further splitting is needed for the following years until significant changes in extraction arrangements take place. In addition, the actual flows of the resource rent as recorded in both the National Accounts and the Government Finance Statistics between the government and the extractor in each year are suggested not to be changed. Though the concrete implementation is conditional on the final choice of the definition and estimation of the resource rent and the resource value, splitting asset is feasible. Another conclusion from the paper is that the current practice in Norway for setting up and managing the GPFG fund is in line with a sustainability criterion.