August 15, 2017 - Weir International, Inc., Mining, Geology and Energy Consultants, has published its summary of U.S. Coal Mining Production and Productivity through the first half of 2017.  The summary includes review of production by coal producing region and mining type, and lists the largest and most productive mining companies and mines.  A copy of the report is available upon request via email at weir@weirintl.com.