The goals of this project were to: -Complete the development of the University of Utah discrete-fracture model so that an alternative production-level fractured reservoir model is available. - Incorporate the most modern numerical schemes in reservoir simulation algorithms and implement the simulator on large PC clusters to demonstrate affordable parallel reservoir simulation. - Develop optimization-based reservoir simulators so that exploitation of oil reservoirs is planned in an economically optimal fashion and oilfields are operated optimally over their lifetime. -Implement the entire package on the internet so that the technology is available and accessible to a wide group of independents.