China has become the second large energy consumption country, but there exists a variety of problems in the petroleum supply: The source of petroleum is single, the energy structure is not reasonable, and serious shortcoming is laid in the strategic repertory of petroleum.

The petroleum supply is a necessary link in the development of economy and society.

Study on risk factors of oil supply depending on mathematical models

For the future,four oil supply circles including Mid - East, Russia - Caspian Sea Rim, Southeast Asia and Africa will be formed globally, and fierce competition for market share will go along among them.

Based on the analysis of development experiences of American petroleum industry and Combined with the features and limitations of our country's petroleum industry,this paper puts forward several proposals on oil supply of our country through comparing the supply and demand of petroleum industry in our country with that in United States.