DL Petroleum Engineering focus is to analyze reservoirs to predict the locations of underperforming wells based on statistical analyses of hydrocarbon production. Reservoirs’ wells are evaluated using spatial statistics (i.e. kriging) to locate underperforming wells or regions within reservoirs. He is able to achieve this goal by using known (measured) petro-physical information from reservoirs and coupling this data with their production history (production/injection flow and pressures). Spatial statistics including other statistical tools, such as regression analysis, are used to optimize the reservoir’s performance with respect to hydrocarbon production.