Oil field development strategies are progressively changing by introducing new concepts, tools and technology. In the field of reservoir simulation the Streamline simulation has made significant progress in recent years, which increases demand to implement the streamline-based flow simulators in reservoir management workflow. The technique is based on the concept of transporting fluids along natural paths, which are defined by streamlines, rather than between explicit grid blocks. Streamline simulation provides new engineering information which are very useful for making better development and prediction plans. This thesis presents streamline simulation optimization of the existing prediction plan based on Mittelplate-Dogger Beta reservoir. Mittelplate is the largest German oil reservoir to date and produces the most oil within the country. In this study using the new information from streamline simulation, a concise water flood plan for Mittelplate-Dogger Beta reservoir was provided. This plan provides methods to improve injection efficiency and increase oil production. The process nicely integrates into the current simulation methodology as well as provides an additional tool for the reservoir engineer.