This course provides a comprehensive overview of the petroleum and petrochemical industry, from raw resources to final products. It begins with an introduction to petrochemical chemistry, focusing on the composition, classification, and uses of natural gas and crude oil. Students then explore petroleum production, including how petroleum is formed, drilling operations, and offshore platform facilities. The course continues with separation processes used in downstream facilities to separate and purify valuable components. Basic plant operations are also covered, highlighting key processes in gas processing plants and crude oil refineries. Finally, students are introduced to petrochemical plants, where chemical reactions transform processed feedstocks into useful products for everyday applications. Overall, this course connects fundamental theory with real industrial practices to help students understand how energy resources are converted into valuable products.