Abstract: The analyses of natural gas proved reserves in PetroChina from 2000 to 2012 showed that the natural gas exploration has entered into a fast development stage, with the continuous growth of explorative investment. The proved natural gas reserves were keeping a high growth, large scale reserves blocks were constantly emerging, and more and more newly incremental gas reserves have been found from the deep?and super?deep reservoirs. These gas?bearing horizons were dominated by the Paleozoic and Mesozoic, and the explorative domains were mainly in areas with tight sandstone, carbonate rock and thrust structural belt, including volcanic rock, biogenic gas and faulted basin,etc. It is predicted by the natural gas growth characteristics and changing tendency from PetroChina that the ancient strata and deep?super deep reservoirs are targets for natural gas exploration in future, tight sandstone, carbonate rock and thrust structural belt are the main domains, and large scale and low?and super?low permeability reserves are still the main features of the newly incremental natural gas reserves