Oil processing is the method of extracting and refining oil from natural sources, primarily crude oil. This process involves several steps, including distillation, where crude oil is heated and separated into different components based on their boiling points. These components can then be further refined to produce various products like gasoline, diesel, and jet fuel. After distillation, additional processes such as cracking and reforming are used to convert heavier fractions into lighter, more valuable products. The final stage includes treating the oil to remove impurities, ensuring that the end products meet safety and quality standards for consumer use.