SECURITIES & EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------

                                 SCHEDULE 13G/A*
                                 (Rule 13d-102)

                                 Amendment No. 1

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED
                              PURSUANT TO 13d-2(b)

                          Petrohawk Energy Corporation
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    716495106
                                 (CUSIP Number)

                                December 31, 2005
             (Date of event which requires filing of this statement)



     Check the appropriate box to designate the rule pursuant to which this
Schedule 13G is filed:


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





                              (Page 1 of 10 Pages)
----------------
     *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 in the remainder of this cover page shall not be
deemed to be "filed" for purposes 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. 716495106                 13G                    Page 2 of 10 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION NO.
            OF ABOVE PERSONS (ENTITIES ONLY)
                                                   Ospraie Management, LLC
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [ ]
                                                                  (b)  [X]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                            Delaware
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                -0-
OWNED BY       ___________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                -0-
-----------------------------------------------------------------------------
     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
            BY EACH REPORTING PERSON
                                                -0-
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED
            BY AMOUNT IN ROW (9)
                                                0.0%
-----------------------------------------------------------------------------
     (12)   TYPE OF REPORTING PERSON **
                                                OO
-----------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 716495106                 13G                    Page 3 of 10 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION NO.
            OF ABOVE PERSONS (ENTITIES ONLY)
                                                   Ospraie Holding I, L.P.
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [X]
                                                                  (b)  [ ]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                            Delaware
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                -0-
OWNED BY       ___________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                 -0-
-----------------------------------------------------------------------------
     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
            BY EACH REPORTING PERSON
                                                -0-
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED
            BY AMOUNT IN ROW (9)
                                                0.0%
-----------------------------------------------------------------------------
     (12)   TYPE OF REPORTING PERSON **
                                                PN
-----------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 716495106                 13G                    Page 4 of 10 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION NO.
            OF ABOVE PERSONS (ENTITIES ONLY)
                                                     Ospraie Management, Inc.
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [X]
                                                                  (b)  [ ]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                            Delaware
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                -0-
OWNED BY       ___________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                -0-
-----------------------------------------------------------------------------

     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
            BY EACH REPORTING PERSON
                                                -0-
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED
            BY AMOUNT IN ROW (9)
                                                0.0%
-----------------------------------------------------------------------------
     (12)   TYPE OF REPORTING PERSON **
                                                CO
-----------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 716495106                 13G                    Page 5 of 10 Pages

----------------------------------------------------------------------------
     (1)    NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION NO.
            OF ABOVE PERSONS (ENTITIES ONLY)
                                                              Dwight Anderson
-----------------------------------------------------------------------------
     (2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                                  (a)  [X]
                                                                  (b)  [ ]
-----------------------------------------------------------------------------
     (3)    SEC USE ONLY
-----------------------------------------------------------------------------
     (4)    CITIZENSHIP OR PLACE OF ORGANIZATION
                            United States
-----------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                -0-
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                -0-
OWNED BY       ___________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                                                -0-
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                -0-
-----------------------------------------------------------------------------

     (9)    AGGREGATE AMOUNT BENEFICIALLY OWNED
            BY EACH REPORTING PERSON
                                                -0-
-----------------------------------------------------------------------------
     (10)   CHECK BOX IF THE AGGREGATE AMOUNT
            IN ROW (9) EXCLUDES CERTAIN SHARES **                       [ ]
-----------------------------------------------------------------------------
     (11)   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
                                                0.0%
-----------------------------------------------------------------------------
     (12)   TYPE OF REPORTING PERSON **
                                                IN
-----------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!





CUSIP No. 716495106                 13G                    Page 6 of 10 Pages

Item 1(a).     Name of Issuer:

     The name of the issuer is Petrohawk Energy Corporation (the "Company").

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

     The Company's principal executive offices are located at 1100 Louisiana
Street, Suite 4400, Houston, Texas 77002.

Item 2(a).     Name of Person Filing:

     This statement is filed by:

          (i)  Ospraie Management, LLC, a Delaware limited liability
               company ("Investment Manager"), which serves as investment
               manager to The Ospraie Portfolio Ltd. ("Portfolio"), a
               Cayman Islands exempted company, with respect to the shares
               of Common Stock (as defined in Item 2(d) below) directly
               owned by Portfolio;
         (ii)  Ospraie Holding I, L.P. (formerly Ospraie Management, L.P.),
               a Delaware limited partnership ("Ospraie Holding"), which
               serves as the managing member of Investment Manager, with
               respect to the shares of Common Stock directly owned by
               Portfolio. Ospraie Holding had formerly served as the
               investment manager to Portfolio until the investment
               management responsibilities were assigned to Investment
               Manager on April 15, 2005;
        (iii)  Ospraie Management, Inc., a Delaware corporation ("Ospraie
               Management"), which serves as the general partner of Ospraie
               Holding, with respect to the shares of Common Stock directly
               owned by Portfolio;
         (iv)  Dwight Anderson ("Mr. Anderson"), the sole shareholder of
               Ospraie Management, with respect to the shares of Common
               Stock held by Portfolio.

               The foregoing persons are hereinafter sometimes collectively
referred to as the "Reporting Persons." Any disclosures herein with respect to
persons other than the Reporting Persons are made on information and belief
after making inquiry to the appropriate party.





CUSIP No. 716495106                 13G                    Page 7 of 10 Pages

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

     The address of the business office of each of the Reporting Persons is 320
Park Avenue, 27th Floor, New York, New York 10022, U.S.A.

Item 2(c).     Citizenship:

     Investment Manager is a limited liability company organized under the laws
of the State of Delaware. Ospraie Holding is a limited partnership organized
under the laws of the State of Delaware. Ospraie Management is a corporation
organized under the laws of the State of Delaware. Mr. Anderson is a United
States citizen.

Item 2(d).     Title of Class of Securities:

     Petrohawk Energy Corporation Common Stock, $0.001 par value (the "Common
Stock").

Item 2(e).  CUSIP Number:
     716495106

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

          (a)  [ ]  Broker or dealer registered under Section 15 of the Act,

          (b)  [ ]  Bank as defined in Section 3(a)(6) of the Act,

          (c)  [ ]  Insurance Company as defined in Section 3(a)(19) of the
                    Act,

          (d)  [ ]  Investment Company registered under Section 8 of the
                    Investment Company Act of 1940,

          (e)  [ ]  Investment Adviser in accordance with Rule 13d-1
                    (b)(1)(ii)(E),

          (f)  [ ]  Employee Benefit Plan or Endowment Fund in accordance
                    with 13d-1 (b)(1)(ii)(F),

          (g)  [ ]  Parent Holding Company or control person in accordance
                    with Rule 13d-1 (b)(1)(ii)(G),

          (h)  [ ]  Savings Association as defined in Section 3(b) of the
                    Federal Deposit Insurance Act,

          (i)  [ ]  Church Plan that is excluded from the definition of an
                    investment company under Section 3(c)(14) of the Investment
                    Company Act of 1940,

          (j)  [ ]  Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

     If this statement is filed pursuant to Rule 13d-1(c), check the box.[X]





CUSIP No. 716495106                 13G                    Page 8 of 10 Pages

Item 4.   Ownership.

         A. Ospraie Management, LLC
              (a) Amount beneficially owned: 0 shares of Common Stock.
              (b) Percent of class: 0.0%. The percentages used herein and in the
rest of Item 4 are calculated based upon the 75,536,379 shares of Common Stock
issued and outstanding as of November 9, 2005 as disclosed by the Company's
Form 10-Q, dated November 11, 2005.
              (c) Number of shares as to which such person has:
                (i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: -0-
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition: -0-

         B.   Ospraie Holding I, L.P.
              (a) Amount beneficially owned: 0
              (b) Percent of class: 0.0%
              (c) Number of shares as to which such person has:
                 (i) Sole power to vote or direct the vote: -0-
                (ii) Shared power to vote or direct the vote: -0-
               (iii) Sole power to dispose or direct the disposition: -0-
                (iv) Shared power to dispose or direct the disposition: -0-

         C.   Ospraie Management, Inc.
              (a) Amount beneficially owned: 0
              (b) Percent of class: 0.0%
              (c) Number of shares as to which such person has:
                (i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: -0-
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition: -0-

         D.   Dwight Anderson
              (a) Amount beneficially owned: 0
              (b) Percent of class: 0.0%
              (c) Number of shares as to which such person has:
                 (i) Sole power to vote or direct the vote: -0-
                (ii) Shared power to vote or direct the vote: -0-
               (iii) Sole power to dispose or direct the disposition: -0-
                (iv) Shared power to dispose or direct the disposition: -0-





CUSIP No. 716495106                 13G                    Page 9 of 10 Pages

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

If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following [X].

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

Investment Manager, in its capacity as the investment manager to Portfolio, has
the power to direct the investment activities of Portfolio, including decisions
with respect to the disposition of the proceeds from the sale of Common Stock.
Ospraie Holding is the managing member of the Investment Manager and in that
capacity directs its operations. Ospraie Management is the general partner of
Ospraie Holding and in that capacity directs its operations. Mr. Anderson is the
president and sole shareholder of Ospraie Management and in that capacity,
directs its operations. The shareholders of Portfolio have the right to
participate in the dividends from, or proceeds from the sale of, the shares of
Common Stock held by Portfolio in accordance with their ownership interests in
Portfolio.

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

     Not applicable.

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

     See Item 2.

Item 9.  Notice of Dissolution of Group.

     Not applicable.

Item 10.  Certification.

     Each of the Reporting Persons hereby makes the following certification:

          By signing below I certify that, to the best of my 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 that purpose or effect.





CUSIP No. 716495106                13G                    Page 10 of 10 Pages

SIGNATURES

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


DATED:  February 14, 2006

                                         OSPRAIE MANAGEMENT, LLC
                                         By:     Ospraie Holding I, L.P.,
                                                 its Managing Member

                                         By:     Ospraie Management, Inc.,
                                                 its General Partner

                                         By:     /s/ Eric Vincent
                                                 --------------------------
                                                 Eric Vincent
                                                 Authorized Signatory

                                         OSPRAIE HOLDING I, L.P.
                                         By:     Ospraie Management, Inc.,
                                                 its General Partner

                                         By:     /s/ Eric Vincent
                                                 --------------------------
                                                 Eric Vincent
                                                 Authorized Signatory

                                         OSPRAIE MANAGEMENT, INC.

                                         By:     /s/ Eric Vincent
                                                 --------------------------
                                                 Eric Vincent
                                                 Authorized Signatory

                                         DWIGHT ANDERSON

                                         By:     /s/ Eric Vincent
                                                 --------------------------
                                                 Eric Vincent, Attorney-in-fact





                                  EXHIBIT INDEX

Exhibit 99.1 - Power of Attorney, dated October 19, 2005, granted by Dwight
Anderson in favor of Kirk Rule and Eric Vincent.





                                                                    EXHIBIT 99.1


                                POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS, that I, DWIGHT ANDERSON, hereby make, constitute
and appoint each of KIRK RULE and ERIC VINCENT, 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 President, member of or in other capacities
with Ospraie Management, LLC ("Ospraie LLC") and each of its affiliates or
entities advised by me or Ospraie LLC, 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 be valid from the date hereof until revoked by me.

IN WITNESS WHEREOF, I have executed this instrument as of the 19th day of
October, 2005.

/s/ Dwight Anderson
----------------------------
Dwight Anderson