This Bureau of Mines report gives the known quantities of premium- grade coking coals in each state and compares estimated current production of coking coals with the requirements of domestic coke producers. Shortages of certain types of coking coals have been reported in some areas, but analysis of the current supply-demand situation indicates that this unavailability is a matter of distribution rather than production. A more serious problem is the possible unavailability of coke for iron production because of inadequate coke productive capacity since many coke ovens are approaching the end of their expected life span, and these ovens represent about one-third of U.S. coke productive capacity. Also, demand for metallurgical coke in the United States in 1985 is projected to be between 66 and 70 million tons, whereas present coke production capacity is estimated at 64 million tons. Thus, to maintain production at current levels, ovens must be replaced, and to meet projected requirements, 2 to 6 million tons of additional capacity must be constructed by 1985. A section on foreign trade in coking coals by george markon is included.