EX-21 4 c75311exv21.txt SUBSIDIARIES OF THE COMPANY EXHIBIT 21 SUBSIDIARIES OF ARCH COAL, INC. The following is a complete list of the direct and indirect subsidiaries of Arch Coal, Inc., a Delaware corporation:
JURISDICTION OF NAME INCORPORATION/FORMATION ---- ----------------------- Allegheny Land Company Delaware Apogee Coal Company Delaware Arch Coal Sales Company, Inc. Delaware Arch Coal Terminal, Inc. Delaware Arch Energy Resources, Inc. Delaware (1) Arch of Wyoming, LLC Delaware Arch Reclamation Services, Inc. Delaware (1) Arch Uinta, LLC Delaware Arch Western Acquisition Corporation Delaware (2) Arch Western Resources, LLC Delaware Ark Land Company Delaware Ashland Terminal, Inc. Delaware (1) AU Sub, LLC Delaware (3) Canyon Fuel Company, LLC Delaware (4) Catenary Coal Company Delaware Catenary Coal Holdings, Inc. Delaware Coal-Mac, Inc. Kentucky (4) Cumberland River Coal Company Delaware Energy Development Co. Iowa (5) Hobet Mining, Inc. West Virginia (5) Julian Tipple, Inc. Delaware (4) Lone Mountain Processing, Inc. Delaware Mingo Logan Coal Company Delaware (1) Mountain Coal Company, L.L.C. Delaware Mountain Gem Land, Inc. West Virginia Mountain Mining, Inc. Delaware Mountaineer Land Company Delaware P. C. Holding, Inc. Delaware Paint Creek Terminals, Inc. Delaware (1) State Leases LLC Delaware (1) Thunder Basin Coal Company, L.L.C. Delaware (6) Western Energy Resources, Inc. Delaware
(1) Owned by Arch Western Resources, LLC. (2) Arch Western Acquisition Corporation owns a 99% membership interest in Arch Western Resources, LLC. (3) Arch Western Resources, LLC owns a 65% membership interest in Canyon Fuel Company, LLC. (4) Owned by Catenary Coal Holdings, Inc. (5) Owned by Mountain Mining, Inc. (6) Owned by Ark Land Company.