The framework conditions for offshore petroleum oil and gas production in Norway for the coming years are outlined, followed by a brief discussion of future normally unmanned production concepts. Legislation for unmanned installations is briefly reviewed, followed by an overview of which safety systems that should be installed on future normally unmanned installations. A case study is presented for a fictitious NUI facility, and risk results are presented for three different cases with varying extent of safety systems. The case study results are discussed with respect to the risk levels for personnel for the three cases of the level of safety systems installed. Individual and societal risk are discussed, and some challenges from risk management point of view for normally unmanned installations are discussed.