Design of oil and gas production facilities in harsh, remote and sensitive environments pose a challenge for companies. Several life cycle cost (LCC) analysis methodologies are in use, but due to new design constraints imposed by the location, the climate as well as governmental regulations concerning pollution and protection of the environment in general, these methodologies are not easy to apply. The goal is to apply the LCC concept and to design for operational, maintenance and support service strategies to reduce risks. This paper discusses issues of life cycle cost analysis applied to operations, maintenance and support of an advanced, complex and integrated offshore oil and gas production plant to be used in harsh, sensitive and remote environments. The challenges influencing the life cycle cost analysis of such a facility is identified and discussed. An improved version of LCC analysis called activity-based LCC is addressed as well. The focus is on the design of an offshore production facility to be used in the Goliat oil and gas field located in the southern Barents Sea in the north of Norway.