The Real Options Theory approaches the reality in financial analysis better than the traditional methods (NPV and TIR, for example), as it turns possible to change the plans that had already been done, according to the situation (managerial flexibility). This subject is very important, specially for projects that involve huge amount of investment, a lot of uncertainty and low reversibility. Normally, the oil industry s projects have these kind of characteristics; justifying, this way, the application of this theory. In this case, because of the huge capital needed to be invested in order to develop the oilfield, it s worthwhile to analyze the advantages that can be provided by a forward investment in information in order to reduce the technical uncertainty. This is one of the objectives of this work. Therefore, one real case of the oil industry is being used in this work, considering three different available alternatives for the development of the oilfield, which one having its own scales of production, and always adopting situations with technical and economic uncertainties. It was done simulations for different percentage of uncertainties revelations (provided by the information obtained forwardly), for different costs of the investment in information and for different quantities of alternatives available to the manager. This last simulation shows the value added by the flexibility provided with the increasing of alternatives to develop the oilfield. This is the other objective of this work.