Exhibit 10.1
 
 Amendment Originator Originators Company
  Agreement
   Certain Defined Terms
 Amendments to the Agreement
  Section 5.10
  Section 5.22 Section 5.21
 SECTION 5.22 Location of Mining Operations Schedule V
 Section 6.1(i)
 Data Records




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Section 6.1(j) Section 6.1(i)
 Mining Operations and Mineheads Schedule V Schedule V Schedule V clause (j) Schedule V
 Section 6.1(k) Section 6.1(j)
 Additional Mortgages Under Credit Agreement
 - 2 -




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Schedule I Schedule I
 Schedule V Schedule V Schedule IV
 Released Originators
 Representations and Warranties
 Representations and Warranties
 Enforceability
 No Default
 Effect of Amendment
 - 3 -




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Effectiveness
 Counterparts
 Governing Law
 Section Headings
 [Signatures begin on next page]
 - 4 -




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ARCH COAL, INC.By:
    /s/ James E. FlorczakName:
    James E. FlorczakTitle:
    Treasurer First
Amendment to PSA (Arch Coal)
 S-1




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ORIGINATORS:
ARCH COAL SALES COMPANY, INC.,
as an OriginatorBy:

/s/ James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and TreasurerARCH COAL TERMINAL, INC.,
as an OriginatorBy:

/s/ James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and TreasurerARCH ENERGY RESOURCES, LLC,
as an OriginatorBy:

/s/ James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and Treasurer First
Amendment to PSA (Arch Coal)
 S-2




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ARCH WESTERN RESOURCES, LLC,
as an OriginatorBy:

/s/ James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and TreasurerCANYON FUEL COMPANY, LLC,
as an OriginatorBy:

/s/ James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and TreasurerCOAL-MAC, INC.,
as an OriginatorBy:

/s/
James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and Treasurer First
Amendment to PSA (Arch Coal)
 S-3




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CUMBERLAND RIVER COAL COMPANY,
as an OriginatorBy:

/s/
James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and TreasurerLONE MOUNTAIN PROCESSING, INC.,
as an OriginatorBy:

/s/
James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and TreasurerMINGO LOGAN COAL COMPANY,
as an OriginatorBy:

/s/ James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and Treasurer First
Amendment to PSA (Arch Coal)
 S-4




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MOUNTAIN COAL COMPANY, L.L.C.,
as an OriginatorBy:

/s/
James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and TreasurerTHUNDER BASIN COAL COMPANY, L.L.C.,
as an OriginatorBy:

/s/
James E. FlorczakName:
    James E. FlorczakTitle:
    Vice President and Treasurer First
Amendment to PSA (Arch Coal)
 S-5




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CONSENT TO
  By:

/s/
William P. FalconName:
    William P. FalconTitle:
    Vice President First
Amendment to PSA (Arch Coal)
 S-6




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Schedule I
 LIST OF ORIGINATORS
 
 Schedule 1-1
    
    Purchase and Sale Agreement(Arch Coal)




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Schedule V
  ORIGINATOR
    
    MINEHEAD
    
    STATE
    
    COUNTYArch Coal Sales Company, Inc.
    
    -N/A
    
    West Virginia
    
    MingoArch Coal Terminal, Inc.
    
    -N/A
    
    Kentucky
    
    BoydArch Western Resources, LLC
    
    -N/A
    
    Wyoming
    
    CampbellCanyon Fuel Company, LLC
    
    - Dugout
- Skyline
    
    Utah
    
    CarbonCanyon Fuel Company, LLC
    
    -Sufco
    
    Utah
    
    SevierCoal-Mac, Inc.
    
    -Holden
-Ragland / Phoenix
    
    West Virginia
    
    LoganCoal-Mac, Inc.
    
    -Ragland / Phoenix
    
    West Virginia
    
    MingoCumberland River Coal Company
    
    -Cumberland River (aka Pardee)
    
    Kentucky
    
    LetcherCumberland River Coal Company
    
    -Cumberland River (aka Pardee)
    
    Virginia
    
    WiseLone Mountain Processing, Inc.
    
    -Lone Mountain
    
    Kentucky
    
    HarlanLone Mountain Processing, Inc.
    
    -N/A
    
    Virginia
    
    LeeMingo Logan Coal Company
    
    -Mountain Laurel
    
    West Virginia
    
    LoganMountain Coal Company, L.L.C.
    
    - West Elk
    
    Colorado
    
    GunnisonThunder Basin Coal Company,
L.L.C.
    
    - Black Thunder
- Coal Creek
    
    Wyoming
    
    Campbell
 Schedule V-1
    
    Purchase and Sale Agreement(Arch Coal)