This book is based on scientific knowledge of fossil fuels formation， exploration， exploitation， and utilization， as well as the story of Mr. Li Siguang （also known as J.S. Lee）， a famous scientist and the first Minister of Geology in New China. It was him who led petroleum geologists in search for oil for China. With more than one hundred lively hand-drawn illustrations， it presents profound knowledge on oil in an eloquent， easy-to-understand manner.