What are the main components of petroleum?

The main components of petroleum are alkanes, naphthenes, aromatic hydrocarbons, etc. It is a viscous, dark brown liquid. Petroleum is mainly used as fuel and gasoline, and is also the raw material for many chemical industry products, such as solutions, fertilizers, pesticides, and plastics. There are oil reserves in some areas of the upper crust, which is one of the main objects of geological exploration. Petroleum is mainly used as fuel and gasoline, and is also the raw material for many chemical industry products, such as solutions, fertilizers, pesticides, and plastics. Petroleum is a non-renewable raw material.