The special participation fee is used to capture the rent originated from oil production fields with a great production profile, like Pre-salt or brown fields in Campos Basin. Considering the complexity of this fee, in this paper different forms of its impacts in the oilfields projects are considered: a production profile generated by only one production module and by more modules. The methodology combines the cash flow analysis from the projects and NPV estimations, using stochastic simulations. The results obtained from the simulation models indicated inefficiencies generated, both in its form of incidence and rates as well as in its estimation process. This type of distortion occurs for giant oilfields with different characteristics (reserves up to 1 billion barrels, simulation cut-off volumes used in this study) and for those fields with reserves additions. The development of the production field in modules in the same field, the second module is overload, generating potential unfeasibility for the project, if the reference price is not sufficient high.
Special participation tax oil; Economic viability; Project; Meta-modeling
