Energy Materials Allocation Act - Requires the Administrator of the Federal Energy Administration to require the allocation of supplies of materials and equipment if he makes the findings that: (1) such supplies are scarce, critical, and essential for the exploration, production, refining and transportation of energy supplies and for the construction of energy facilities; (2) such energy-related activities cannot be reasonably accomplished without such allocation; or (3) competition in exploration, production, refining, and required transportation of energy supplies and the construction and maintenance of energy facilities will be lessened unless the Administrator exercises the authority granted. Requires the Administrator to report to Congress on the administration of this Act.