LP models allow a complete assessment of the configuration options that lead to enhanced knowledge of refinery technology, process licensor offerings, and eventually lead to selecting the right combination of technologies and unit capacities that best suit the market conditions. LP can be used to maximize refinery margin, devise strategies to meet product demand of high-value products, and evaluate additional crude processing options and also for the new refinery as well as green-field refinery projects such as refinery expansion, unit addition and for removing capacity bottlenecks.