Abstract: Since the early 1980's,when large-scale petroleum exploration activities began in hinterland of Junggar basin, we have got plentiful and substantial results in exploration. Three large- and medium-sized oil and gas fields have been discovered, including many petroliferous structures. The recognition of rules for hydrocarbon enrichment has also emerged a leap to“uplift accumulation theory”from“source control theory”. The authors established a model for oil/ gas reservoir formation by clues of the exploration course in hinterland of Junggar basin, characteristics of petroleum migration and accumulation as well as reasons for success and failure in this area, and proposed some suggestions for further exploration,based on existing conditions and state of the arts for petroleum prospecting. This paper is, on the basis of petroleum system theory, continuous to support these“theories" as a guide for searching for oil/ gas.

Key words: Junggar basin, Oil and gas exploration, Exploration history, Exploration policy, Source bed, Structural control, Control theory