In the introduction section, provide an in-depth primer on suitable distribution networks, along with the design and policies of the supply chain network. The Texaco Corporation is a large, fully integrated petroleum company based in the United States. The company makes most of its oil in its fields and imports the rest from the Middle East. An extensive distribution network is used to transport the oil to the company's refineries and then to transport the petroleum products from the refineries to Texaco's distribution centers. Consider quantitative tools for decision-making in transportation and supply chain design issues. Apply mathematical programming models to aid decision-making at the strategic decision level.