Basic information on physical and chemical properties of gas is given. Information on gas production facilities is given. Theoretical principles of natural gas transportation, storage and distribution are described. Attention is paid to automatic control systems. The issues of operation of gas distribution networks and gas storage facilities are widely covered. Transportation, storage, distribution and use of liquefied gases in the main production processes, for municipal purposes and in agriculture are considered. The issues of determining the quality of liquefied gases and the specifics of operating tanks for storing liquefied gases are covered. The areas of optimal use of liquefied gases have been established, ways to increase the efficiency of their use have been outlined. A large volume of process characteristics of the main and auxiliary equipment of the gas facility is summarized and systematized.