Natural gas before the natural gas can be transported. Natural gas extracted from oil wells is called casinghead gas (whether or not truly produced up the annulus and through a casinghead outlet) or associated gas. The natural gas industry is extracting an increasing quantity of gas from challenging resource types: sour gas, tight gas, shale gas, and coalbed methane. There is some disagreement on which country has the largest proven gas reserves. Sources that consider that Russia has by far the largest proven reserves include the US CIA (47 600 km³), the US Energy Information Administration (47 800 km³), and OPEC (48
China Natural Gas gas retailing company to be publicly traded in the United States. The company is building a local government supported liquefied natural gas processing and distribution plant in Jingbian, Shaanxi province, which was scheduled to be completed in December 2009. China Natural Gas China Natural Gas Inc. is a Chinese energy company that, through its subsidiaries, is engaged in the distribution and sale of natural gas and gasoline to commercial, residential and industrial customers in the Xi'an area and the Shaanxi province of the People's Republic of China. The company also engages in the construction of pipeline networks. It offers natural