SUGAR LAND--April 25, 2013--Researched by Industrial Info Resources (Sugar Land, Texas)--Arch Coal Incorporated (NYSE:ACI) (St. Louis, Missouri), a leading, diversified coal company, saw a drop in revenues and earnings for first-quarter 2013 as metallurgical and thermal coal shipments were generally weaker and realized prices declined in all operating regions. Industrial Info is tracking about $1.3 billion in active projects involving Arch Coal.