The one monopoly or cartel that I want broken up is the oil company. The reason to why I want to break this monopoly is because their set the price of oil is high. If this monopoly was broken up then there would be competition in the oil industry. If there competition in the oil industry then the price for oil would be low. The change would benefit alot of people because it might encourage greater competiton and then the price for oil would be lower. People would buy more oil to heat their home in the winter.