3520Production and Distribution of Gas Fuel Through

gas production for the purpose of supplying or supplying gas by carbonation of coal, from agricultural by-products or from waste; | gas storage and gas storage services (such as the sale of storage capacity for natural gas); | processing of gaseous fuels to a specified calorific value, through refining, blending and other processes of various gases, including natural gas; | transportation, distribution and supply of all types of gaseous fuels through a pipeline system; | trading of gas to consumers through pipelines; | operation of commodity exchanges and gaseous fuel transport capacity.