Abstract: Developments or changes of petroleum industries in the world are sensitive factors which affect up-to-date the international economy and politics, and vice versa. Oil production is a key indicator for reflecting development of petroleum industry in each country. However, it is affected obviously by international and major oil-productive countries”economies and politics, hence it is the comprehensive reflection of world mutual demand relationships. In early 21th century,it is significantly helpful for us to predict developing trend of world petroleum industry in the future, grasp varied peculiarity of oil production and determine developing directions of China's petroleum industry by reviewing the growth and up-and-down facts of world oil production and effects of controlled factors on the world.

Key words: worldwide, oil, natural gas, reserve, production, developing trend