UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C 20549


SCHEDULE 13G


Under the Securities Exchange Act of 1934


(Amendment No. 1)*

Arch Coal Inc
(Name of Issuer)

Common
(Title of Class of Securities)


039380100
(CUSIP Number)


Check the following box if a fee is being paid with this statement /X/.
(A fee is not required only if the filing person: (1) has a previous statement
on file reporting beneficial ownership of more than five percent of the class
ofsecurities described in Item l; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7).

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
andfor any subsequent amendment containing information which would alter the 
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to  be  "filed"  for the purpose of Section 18 of the Securities Exchange Act of
1934("Act")  or otherwise subject to the liabilities of that section  of the Act
but  shall  be  subject  to  all  other  provisions of the Act (however, see the
Notes).







CUSIP No. 039380100               13G                     Page 2 of 5 Pages

1)    NAME OF REPORTING PERSON
      S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
      Neuberger & Berman L.P.
      13-5521910


2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                        (a) /__/
                                                                        (b) /X/
 3)   SEC USE ONLY


 4)   CITIZENSHIP OR PLACE OF ORGANIZATION
      New York, New York

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

 5)   SOLE VOTING POWER
      5,177,436

 6)   SHARED VOTING POWER
      2,211,400

 7)   SOLE DISPOSITIVE POWER
      0

 8)   SHARED DISPOSITIVE POWER
      7,741,286


 9)   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      7,741,286


10)   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
      52,783


11)   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
      12.14


12)   TYPE OF REPORTING PERSON*

      BD/IA




CUSIP No. 039380100               13G                    Page 3 of 5 Pages
Item 1.   (a)    Name of Issuer:

                 Arch Coal Inc

Item 1    (b)    Address of Issuer's Principal Executive Offices:

                 CITY PLACE ONE STE 300, ARCH MINERAL CORP ST LOUIS, MO 63141

Item 2.   (a)    Name of Person Filing:

                 Neuberger & Berman L.P.

Item 2    (b)    Address of Principal Business Office:

                 605 Third Ave., New York, NY, 10158-3698

Item 2    (c)    Citizenship:

                 USA

Item 2    (d)    Title of Class of Securities:

                 Common

Item 2    (e)    CUSIP Number:

                 039380100

Item 3.   (a)    /X/  Broker or Dealer registered under Section 15 of the Act


Item 3    (b)    /X/  Investment Adviser registered under Section 203 of the 
                      Investment Advisers Act of 1940


Item 4.          Ownership:

          (a)    Amount Beneficially Owned:

                 7,741,286

          (b)    Percent of Class:

                 12.14



CUSIP No. 039380100               13G                    Page 4 of 5 Pages

(c)    Number of Shares as to which such person has:
            (I)    Sole Power to vote or to direct the
                   vote: 5,177,436

            (ii)   Shared Power to vote or to direct the
                   vote: 2,211,400

            (iii)  Sole Power to dispose or to direct the disposition
                   of: 0

            (iv)   Shared Power to dispose or to direct the disposition
                   of: 7,741,286


Item 5.          Ownership of Five Percent or Less of a Class:
                 N/A

Item 6.          Ownership of More than Five Percent on Behalf of Another:



Neuberger & Berman L.P. is deemed to be a beneficial owner for purpose of 
Rule 13(d) since it has shared power to make decisions whether to retain or
dispose of the securities of many unrelated clients.  Neuberger & Berman L.P.
does not, however have any economic interest in the securities of those
clients.  The clients are the actual owners of the securities and have the
sole right to receive and the power to direct the receipt of dividends from
or proceeds from the sale of such securities.


 
With regard to the shares set forth under Item 4.(c)(II), Neuberger & Berman 
L.P. and Neuberger & Berman Management Inc. are deemed to be beneficial 
owners for purposes of Rule 13(d) since they both have shared power to make 
decisions whether to retain or dispose of the securities.  Neuberger & Berman 
L.P. and Neuberger & Berman Management Inc. serve as sub-adviser and 
investment manager, respectively, of Neuberger & Berman?s various Funds which 
hold such shares in the ordinary course of their business and not with the 
purpose nor with the effect of changing or influencing the control of the 
issuer.

No other Neuberger & Berman L.P. advisory client has an interest of more 
than 5% of the issuer.

It should be further noted that the share calculation under item 4.(c)(IV) is 
derived from a total combination of the shares set forth under Item 4.(c)(I and 
II). The remaining balance of shares, if any, are for individual client 
accounts over which Neuberger & Berman L.P. has shared power to dispose.


CUSIP No. 039380100               13G                    Page 5 of 5 Pages

Item 7.          Identification and Classification of the Subsidiary Which 
                 Acquired the Security Being Reported on by the Parent Holding
                 Company:

                 N/A

Item 8.          Identification and Classification of Members of the Group:

                 N/A

Item 9.          Notice of Dissolution of Group:

                 N/A

Item 10.         Certification:

By signing below I certify that, to the best of my knowledge and belief, the 
securities referred to above were acquired in the ordinary course of business
and were not acquired for the purpose of and do not have the effect of changing
or influencing the control of the issuer of such securities and were not 
acquired in connection with or as a participant in any transaction having such
purposes or effect.

Signature:

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.


Date: September 30, 2005


By:_____________________________ 
	 C. Carl Randolph
   _____General Partner_________ 
          Name/Title