Abstract: The classification of austral-style petroleum domain is based on previous austral system established by Dr.Weng Wen-bo.The austral system was divided into three petroliferous domains as Australia (India-Australia), Africa (Africa-Arabia) and South America in terms of global plate distribution.It was the three domains that ever made up of Gondwana land together with Antarctica before Mesozoic era, and were then separated from Gondwana land during Mesozoic to Cenozoic, forming Indian Ocean and South Atlantic Ocean as well as Pacific Ocean, along with Tethys closure.Hence, the Paleozoic, Mesozoic and Cenozoic zones over continental nucleus and its circumferences were of both individual feature and sizable superposition.The most typical Persian Gulf basin is characterized by the superposition with these zones one after another.Five types of basins such as intracratonic basin, foreland basin and fold belt, movable continental margin, divergent continental margin and impactogen basin then occurred and the higher deposition velocity of oil zones appear on their sedimentary curves.Oil-gas pools or fields found in Persian Gulf basin possess obvious remigration processes known as a complex petroleum system.

Key words: austral style, petroliferous domain, Australia, Africa, South America, basin type, deposition velocity, complex petroleum system