Large oil-gas fields with over 100 million tons of yield have been recently discovered in volcanic rocks in Songliao basin and Dzungaria basin. This paper, based on the geology and distribution of oil-gas reservoir in volcanic rocks, analyzes the status of oil-gas resources hosted in volcanic rocks, forecasts the prospect in some blocks to be discovered. It concludes that volcanic-hosted oil-gas reservoir is of great prospect to be explored as a new vital field in the future.

The traditional petroleum theory is helpful to search oil in sedimentary rocks. However, as oil-gas exploration has been intensively concentrated on sedimentary regions, the oil-bearing sedimentary regions become less and less. To look for oil in non-sedimentary areas caught more and more attention. This paper analyzes the oil-gas potential in the volcanic rocks worldwide, and studies the oil-gas reservoir formation conditions of volcanic rocks in basins. The volcanic-hosted oil-gas reservoir is normally located at the lower sequences, where with a low exploration but high potential shall be a new vital oil-gas exploration area. Some volcanic basins in circumPacific, Mediterranean sea and middle Asia are of good oil-gas reservoir-forming conditions, where can become the major areas for volcanic-hosted oil-gas.