Fluor's Process Integration and LP modeling selects the best choice of crude oils, raw materials, and products to be sold based on the relevant prices, product demands, process configuration, product specifications, and utility availability. The basic economic drivers of the model are derived from the product slate produced, the crude oil, and other needed raw material prices. The feedstock transported to the refinery or complex should be delivered cost, insurance, and freight (CIF) and the product sales prices should be free on board (FOB) so that the correct economic balance can be made.