Oil reservoir management is mainly aimed to provide more efficient, cost-effective and environmentally safer oil production from reservoirs. Numerical simulations are used in design and implementation of optimal production strategies. Here we describe a software architecture facilitating large-scale simulation studies, involving analysis of vast volumes of output data and ensembles of long-running simulations. Oil and gas pricing strategies also contribute to the success of the oil and gas industries. For instance the forecasting methods help in predicting future success of the industry. By assessing the prices , the industry will be in a position to plan the economic future and the related risks.