Abstract: The common predict ion methods for oil and gas reserves, production rate and requirement are introduced systematically in this paper. They are life model simulation method, gray system method, "reserves —production “dual controlled method, random method and indirect method. It also analyzed briefly their basic feature, suitable ranges and relevant mathematical model building. They can be used to compile the middle and long-term plans of oil and gas exploration and development, and to draw up strategy of oil and gas growth.

Key words: reserve, production, demand, predict ion, method