Abstract
In view of the past energy situation in Europe and America such as transitions of energy increase, structure of consumption and demand by divisional consumption regarding the gradual increase in pepulation as well as national total produ-ction, future energy demand, reserves of various energies together with their possible supply are investigated, and the future prospect of Japan's coal industry is discussed.
The proportion of the present energy supply.in the world is 45% of coal, 34% of petroleum, 15% of natural gas and 6% of hydroelectricity.In the near future, petroleum supply will be increasing constantly, however, it will not be possible to suffice the world demand several decades later.Nevertheless, according to the plan of energy demand and supply in our country, it indicates the dependence of over 60% on the energy import after several years.Under such conditions it is inevitable to induce confusion at the lack of petroleum supply. Coal producers and statesmen should establish a far-sighted program for the national energy.