The offshore oil and gas companies have been facing, mainly in the last five years, an increase in their operating costs (OPEX). The cost of subsea production system monitoring, inspection, intervention and maintenance is growing up very fast and, in most of the cases, is responsible for the high OPEX and low NPV (net present value of the project). In some cases, the use of subsea technologies focused on reduction OPEX and NPV maximization could be mandatory in order to keep the project attractiveness. These technologies have been used since the mid-1970s and are being developed through R&D companies or suppliers. Despite these initiatives, the companies have realized that there is a gap between the R&D efforts and the operational needs. The objective of this paper is present how Petrobras is dealing with this challenge and how the use of subsea technologies is supporting the OPEX reduction.