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

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 2)*

                                     AMERCO
                                (Name of Issuer)

                     Common Stock, par value $0.25 per share
                         (Title of Class of Securities)

                                    023586100
                                 (CUSIP Number)

                                December 31, 2006
                      (Date of Event which Requires Filing
                               of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

                               [ ]     Rule 13d-1(b)
                               [X]     Rule 13d-1(c)
                               [ ]     Rule 13d-1(d)

*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, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required on 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).

                          Continued on following pages
                               Page 1 of 11 Pages
                              Exhibit Index: Page 9





                                 SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 2 of 11 Pages


1        Names of Reporting Persons
         I.R.S. Identification Nos. of above persons (entities only)

                  Atticus Capital LP

2        Check the Appropriate Box If a Member of a Group (See Instructions)
                                                     a.       [ ]
                                                     b.       [ ]

3        SEC Use Only

4        Citizenship or Place of Organization

                  Delaware


                            5             Sole Voting Power
       Number of                                   1,895,239
        Shares
      Beneficially          6             Shared Voting Power
        Owned By                                   0
          Each
       Reporting            7             Sole Dispositive Power
        Person                                     1,895,239
         With
                            8             Shared Dispositive Power
                                                   0

9        Aggregate Amount Beneficially Owned by Each Reporting Person

                                    1,895,239


10       Check Box If the Aggregate Amount in Row (9) Excludes Certain
         Shares (See Instructions)

                                    [   ]

11       Percent of Class Represented By Amount in Row (9)

                                    8.90%

12       Type of Reporting Person (See Instructions)

                                    PN




                                SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 3 of 11 Pages


1        Names of Reporting Persons
         I.R.S. Identification Nos. of above persons (entities only)

                  Atticus Management LLC

2        Check the Appropriate Box If a Member of a Group (See Instructions)
                                                     a.       [ ]
                                                     b.       [ ]

3        SEC Use Only

4        Citizenship or Place of Organization

                  Delaware

                            5             Sole Voting Power
       Number of                                   1,895,239
        Shares
      Beneficially          6             Shared Voting Power
        Owned By                                   0
          Each
       Reporting            7             Sole Dispositive Power
        Person                                     1,895,239
         With
                            8             Shared Dispositive Power
                                                   0

9        Aggregate Amount Beneficially Owned by Each Reporting Person

                                    1,895,239


10       Check Box If the Aggregate Amount in Row (9) Excludes Certain
         Shares (See Instructions)

                                    [   ]

11       Percent of Class Represented By Amount in Row (9)

                                    8.90%

12       Type of Reporting Person (See Instructions)

                                    OO




                                SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 4 of 11 Pages


1        Names of Reporting Persons
         I.R.S. Identification Nos. of above persons (entities only)

                  Timothy R. Barakett

2        Check the Appropriate Box If a Member of a Group (See Instructions)
                                                     a.       [ ]
                                                     b.       [ ]

3        SEC Use Only

4        Citizenship or Place of Organization

                  Canada

                            5             Sole Voting Power
       Number of                                   1,895,239
        Shares
      Beneficially          6             Shared Voting Power
        Owned By                                   0
          Each
       Reporting            7             Sole Dispositive Power
        Person                                     1,895,239
         With
                            8             Shared Dispositive Power
                                                   0

9        Aggregate Amount Beneficially Owned by Each Reporting Person

                                    1,895,239


10       Check Box If the Aggregate Amount in Row (9) Excludes Certain
         Shares (See Instructions)

                                    [   ]

11       Percent of Class Represented By Amount in Row (9)

                                    8.90%

12       Type of Reporting Person (See Instructions)

                                    HC







                                SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 5 of 11 Pages


Item 1(a)   Name of Issuer:

            Amerco (the "Issuer").

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

            1325 Airmotive Way, Suite 100
            Reno, Nevada 89502-3239

Item 2(a)   Name of Person Filing:

            This  statement is filed on behalf of each of the following  persons
(collectively, the "Reporting Persons"):

            i)   Atticus Capital LP ("Atticus Capital");

            ii)  Atticus Management LLC ("Atticus Management"); and

            iii) Timothy R. Barakett ("Mr. Barakett").

            Effective as of January 1, 2006,  Atticus  Management (f/k/a Atticus
Capital,  L.L.C.)  effected  a  restructuring  in which it  assigned  to Atticus
Capital its rights and obligations  under the investment  management  agreements
with its clients and following the restructuring it changed its name to "Atticus
Management  LLC." Mr.  Barakett is the  Chairman,  Chief  Executive  Officer and
Managing Member of Atticus  Management,  a Delaware limited  liability  company.
Atticus  Management is the sole general partner of Atticus  Capital,  a Delaware
limited  partnership.  Atticus Capital,  together with certain of its affiliated
entities  (collectively,  the "Atticus  Entities"),  acts as adviser for various
investment funds (the "Funds") and managed accounts (the  "Accounts").  Based on
his  relationship  with the Atticus  Entities,  the Funds and the Accounts,  Mr.
Barakett is deemed to be a beneficial owner of the Shares owned by the Funds and
Accounts for purposes of Section 13(d) of the Act.

Item 2(b)   Address of Principal Business Office or, if None, Residence:

            The  address  of the  principal  business  office  of the  Reporting
Persons is 152 West 57th Street, 45th Floor, New York, NY 10019.

Item 2(c)   Citizenship:

            1)   Atticus Capital is a Delaware limited partnership;

            2)   Atticus Management is a Delaware limited liability company; and

            3)   Mr. Barakett is a citizen of Canada.

Item 2(d)   Title of Class of Securities:

            Common Stock, par value $0.25 per share (the "Shares").

Item 2(e)   CUSIP Number:

            023586100



                               SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 6 of 11 Pages


Item 3.     If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or
            (c),  check  whether the person filing is a:

            This Item 3 is not applicable.

Item 4.     Ownership:

Item 4(a)   Amount Beneficially Owned:

            As of the Date of Event, each of the Reporting Persons may be deemed
to be the beneficial owner of 1,895,239 Shares.

Item 4(b)   Percent of Class:

            As of  February  6,  2007,  the  number  of Shares  outstanding  was
21,284,604  according to the Issuer's Form 10-Q filed on February 7, 2007.  Each
of  the  Reporting  Persons  may  be  deemed  to  be  the  beneficial  owner  of
approximately 8.90% of the total number of Shares outstanding.

Item 4(c)   Number of shares as to which such person has:




            Atticus Capital
            ---------------
                                                                           
            (i)      Sole power to vote or direct the vote                      1,895,239

            (ii)     Shared power to vote or to direct the vote                         0

            (iii)    Sole power to dispose or to direct the disposition of      1,895,239

            (iv)     Shared power to dispose or to direct the disposition of            0

            Atticus Management
            ------------------
            (i)      Sole power to vote or direct the vote                      1,895,239

            (ii)     Shared power to vote or to direct the vote                         0

            (iii)    Sole power to dispose or to direct the disposition of      1,895,239

            (iv)     Shared power to dispose or to direct the disposition of            0

            Mr. Barakett
            ------------
            (i)      Sole power to vote or direct the vote                      1,895,239

            (ii)     Shared power to vote or to direct the vote                         0

            (iii)    Sole power to dispose or to direct the disposition of      1,895,239

            (iv)     Shared power to dispose or to direct the disposition of            0


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

            This Item 5 is not applicable.

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

            This Item 6 is not applicable.


                               SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 7 of 11 Pages



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

            This Item 7 is not applicable.

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

            This Item 8 is not applicable.

Item 9.     Notice of Dissolution of Group:

            This Item 9 is not applicable.

Item 10.    Certification:

            By signing below each of the Reporting  Persons  certifies  that, to
the best of such person's knowledge and belief, the securities referred to above
were not  acquired  and are not held for the  purpose  of or with the  effect of
changing or influencing the control of the issuer of the securities and were not
acquired  and  are not  held  in  connection  with  or as a  participant  in any
transaction having such purpose or effect.




                                SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 8 of 11 Pages



                                   SIGNATURES


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


Date:   February  14, 2007                ATTICUS CAPITAL LP

                                          By:   Atticus Management LLC,
                                                its general partner


                                                By: /s/ John F. Brown*
                                                    ----------------------------
                                                    Name:   Timothy R. Barakett
                                                    Title:  Managing Member

Date:   February  14, 2007                ATTICUS MANAGEMENT LLC

                                          By:    /s/ John F. Brown*
                                                --------------------------------
                                                Name:   Timothy R. Barakett
                                                Title:  Managing Member

Date:   February  14, 2007                TIMOTHY R. BARAKETT

                                          /s/ John F. Brown*
                                          --------------------------------------



*By John F. Brown, attorney-in-fact



                                SCHEDULE 13G/A

CUSIP No. 023586100                                           Page 9 of 11 Pages


                                  EXHIBIT INDEX

                                                                        Page No.

A.   Joint Filing Agreement, dated as of February 14, 2007, by
     and among Atticus Capital LP, Atticus Management LLC and
     Timothy R. Barakett.............................................      10

B.   Power of Attorney, dated January 18, 2007.......................      11





                                SCHEDULE 13G/A

CUSIP No. 023586100                                          Page 10 of 11 Pages


                                   EXHIBIT A

                             JOINT FILING AGREEMENT

            The  undersigned  hereby agree that  Amendment No. 2 to the Schedule
13G with  respect to the Common  Stock,  par value  $0.25 per share,  of Amerco,
dated as of  February  14,  2007,  is,  and any  amendments  thereto  (including
amendments on Schedule 13D) signed by each of the undersigned shall be, filed on
behalf of each of us pursuant to and in accordance  with the  provisions of Rule
13d-1(k) under the Securities Exchange Act of 1934.


Date:   February  14, 2007                ATTICUS CAPITAL LP

                                          By:   Atticus Management LLC,
                                                its general partner


                                                By: /s/ John F. Brown*
                                                    ----------------------------
                                                    Name:   Timothy R. Barakett
                                                    Title:  Managing Member

Date:   February  14, 2007                ATTICUS MANAGEMENT LLC

                                          By:    /s/ John F. Brown*
                                                --------------------------------
                                                Name:   Timothy R. Barakett
                                                Title:  Managing Member

Date:   February  14, 2007                TIMOTHY R. BARAKETT

                                          /s/ John F. Brown*
                                          --------------------------------------



*By John F. Brown, attorney-in-fact





                               SCHEDULE 13G/A

CUSIP No. 023586100                                          Page 11 of 11 Pages


                                    EXHIBIT B

                                POWER OF ATTORNEY

            KNOW ALL PERSONS BY THESE  PRESENTS,  that I,  TIMOTHY R.  BARAKETT,
hereby make,  constitute  and appoint each of JOHN F. BROWN,  DENNIS BERTRON and
CHARLES FORTIN,  acting  individually,  as my agent and attorney-in-fact for the
purpose  of  executing  in my name,  (a) in my  personal  capacity  or (b) in my
capacity  as  chief  executive  officer  of,  managing  member  of or  in  other
capacities with Atticus Capital LP or its general  partner,  Atticus  Management
LLC (f/k/a Atticus Capital, L.L.C.) (collectively, "Atticus"), and each of their
affiliates,  including Atticus UK LLP and Atticus UK Services Ltd., and entities
advised by me or Atticus, all documents, certificates,  instruments, statements,
filings  and  agreements  ("documents")  to be filed  with or  delivered  to any
foreign or domestic  governmental or regulatory body or required or requested by
any other  person  or entity  pursuant  to any legal or  regulatory  requirement
relating to the acquisition, ownership, management or disposition of securities,
futures  contracts or other  investments,  and any other  documents  relating or
ancillary  thereto,  including  without  limitation  all  documents  relating to
filings with the  Commodities  Futures Trading  Commission and National  Futures
Association,  the United States  Securities and Exchange  Commission (the "SEC")
pursuant to the Securities  Act of 1933 or the  Securities  Exchange Act of 1934
(the "Act") and the rules and regulations promulgated thereunder,  including all
documents  relating to the  beneficial  ownership of  securities  required to be
filed with the SEC pursuant to Section 13(d) or Section 16(a) of the Act and any
information statements on Form 13F required to be filed with the SEC pursuant to
Section 13(f) of the Act. All past acts of the  attorneys-in-fact in furtherance
of the foregoing are hereby ratified and confirmed.

            THIS POWER OF ATTORNEY  shall  remain in full force and effect until
either revoked in writing by the undersigned or until such time as the person or
persons to whom power of  attorney  has been  hereby  granted  cease(s) to be an
employee of, or otherwise  associated  with,  Atticus or one of its  affiliates.
Execution of this power of attorney revokes that certain Power of Attorney dated
as of March 21, 2006 with respect to  substantially  the same matters  addressed
above.

            IN  WITNESS  WHEREOF,  the  undersigned  has duly  subscribed  these
presents as of January 18, 2007.

                                                 /s/ Timothy R. Barakett
                                                 -------------------------------
                                                 Timothy R. Barakett