SECURITIES & EXCHANGE COMMISSION
                             Washington, D.C. 20549

                             ----------------------

                                  SCHEDULE 13G*
                                 (Rule 13d-102)

             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)

                               (Amendment No. 1)*

                             Gastar Exploration Ltd.
                                (Name of Issuer)

                                  Common Shares
                         (Title of Class of Securities)

                                    367299104
                                 (CUSIP Number)

                                December 31, 2007
             (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 19 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. 367299104                   13G                     Page 2 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

      The Ospraie Portfolio Ltd.
--------------------------------------------------------------------------------
2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP**                 (a) |_|
                                                                         (b) |X|

--------------------------------------------------------------------------------
3.    SEC USE ONLY


--------------------------------------------------------------------------------
4.    CITIZENSHIP OR PLACE OF ORGANIZATION

      Cayman Islands
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        9,154,050 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|


--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      4.40%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      CO
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                     Page 3 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

      Ospraie Special Opportunities Master Holdings Ltd.
--------------------------------------------------------------------------------
2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP**                 (a) |_|
                                                                         (b) |X|

--------------------------------------------------------------------------------
3.    SEC USE ONLY


--------------------------------------------------------------------------------
4.    CITIZENSHIP OR PLACE OF ORGANIZATION

      Cayman Islands
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        9,154,050 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|

--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      4.40%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      CO
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                     Page 4 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME 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
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        18,308,100 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|

--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      8.79%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      OO
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                     Page 5 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME 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) |_|
                                                                         (b) |X|

--------------------------------------------------------------------------------
3.    SEC USE ONLY


--------------------------------------------------------------------------------
4.    CITIZENSHIP OR PLACE OF ORGANIZATION

      Delaware
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        18,308,100 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|


--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      8.79%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      PN
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                     Page 6 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME 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) |_|
                                                                         (b) |X|

--------------------------------------------------------------------------------
3.    SEC USE ONLY


--------------------------------------------------------------------------------
4.    CITIZENSHIP OR PLACE OF ORGANIZATION

      Delaware
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        18,308,100 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|


--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      8.79%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      CO
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                     Page 7 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

      Ospraie Advisors, L.P.
--------------------------------------------------------------------------------
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
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        9,154,050 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|


--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      4.40%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      PN
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                     Page 8 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

      Ospraie Advisors, 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
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        9,154,050 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|


--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      4.40%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      OO
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                     Page 9 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME 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) |_|
                                                                         (b) |X|

--------------------------------------------------------------------------------
3.    SEC USE ONLY


--------------------------------------------------------------------------------
4.    CITIZENSHIP OR PLACE OF ORGANIZATION

      United States
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        18,308,100 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      18,308,100 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|


--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      8.79%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      IN
--------------------------------------------------------------------------------



CUSIP No. 367299104                   13G                    Page 10 of 19 Pages
--------------------------------------------------------------------------------
1.    NAME OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

      John Duryea
--------------------------------------------------------------------------------
2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP**                 (a) |_|
                                                                         (b) |X|

--------------------------------------------------------------------------------
3.    SEC USE ONLY


--------------------------------------------------------------------------------
4.    CITIZENSHIP OR PLACE OF ORGANIZATION

      United States
--------------------------------------------------------------------------------
               5.    SOLE VOTING POWER

                     0
               -----------------------------------------------------------------
  NUMBER OF    6.    SHARED VOTING POWER
   SHARES
 BENEFICIALLY        9,154,050 shares of Common Stock
  OWNED BY     -----------------------------------------------------------------
    EACH       7.    SOLE DISPOSITIVE POWER
  REPORTING
   PERSON            0
    WITH       -----------------------------------------------------------------
               8.    SHARED DISPOSITIVE POWER

                     9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      9,154,050 shares of Common Stock
--------------------------------------------------------------------------------
10.   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES** |_|


--------------------------------------------------------------------------------
11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

      4.40%
--------------------------------------------------------------------------------
12.   TYPE OF REPORTING PERSON**

      IN
--------------------------------------------------------------------------------


                                                             Page 11 of 19 Pages


Item 1(a). Name of Issuer:

      The name of the issuer is Gastar Exploration Ltd. (the "Company")

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

      The Company's principal executive offices are located at 1331 Lanver
Street, Suite 1080, Houston, Texas 77010

Item 2(a). Name of Person Filing:

      This statement is filed by:

            (i)   The Ospraie Portfolio Ltd., a Cayman Islands exempted company
                  ("Portfolio"), with respect to the shares of Common Stock held
                  by it;

            (ii)  Ospraie Special Opportunities Master Holdings Ltd. a Cayman
                  Islands exempted company ("Master Holdings"), with respect to
                  the shares of Common Stock held by it;

            (iii) Ospraie Management, LLC, a Delaware limited liability company
                  ("Investment Manager"), which serves (a) as investment manager
                  to Portfolio, and (b) as managing member of Advisors LLC (as
                  defined below) with respect to the Common Shares directly
                  owned by Portfolio and Master Holdings;

            (iv)  Ospraie Holding I, L.P., a Delaware limited partnership
                  ("Ospraie Holding"), which serves as the managing member of
                  Investment Manager, with respect to the Common Shares directly
                  owned by Portfolio and Master Holdings;

            (v)   Ospraie Management, Inc., a Delaware corporation ("Ospraie
                  Management"), which serves as the general partner of Ospraie
                  Holding, with respect to the Common Shares directly owned by
                  Portfolio and Master Holdings;

            (vi)  Ospraie Advisors, L.P., a Delaware limited partnership
                  ("Advisors LP"), which serves as the investment manager to
                  Master Holdings with respect to the Common Shares directly
                  owned by Master Holdings;

            (vii) Ospraie Advisors, LLC, a Delaware limited liability company
                  ("Advisors LLC"), which serves as the general partner of
                  Advisors LP, with respect to the Common Shares directly owned
                  by Master Holdings;

           (viii) Dwight Anderson ("Mr. Anderson"), the president and sole
                  shareholder of Ospraie Management; with respect to the shares
                  of Common Stock directly owned by Portfolio and Master
                  Holdings; and

            (ix)  John Duryea ("Mr. Duryea"), a portfolio manager of Advisors
                  LP, with respect to the Common Shares held by Master Holdings.


                                                             Page 12 of 19 Pages


            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.

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

      The address of the business office of each of the Reporting Persons other
than Portfolio and Master Holdings is 320 Park Avenue, 27th Floor, New York, New
York 10022, U.S.A. The address of the office of Portfolio and Master Holdings is
c/o M&C Corporate Services Limited, PO Box 309 GT, Ugland House, South Church
Street, George Town, Grand Cayman, Cayman Islands.

Item 2(c). Citizenship:

      Portfolio is a Cayman Islands exempted company. Master Holdings is a
Cayman Islands exempted company. 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.
Advisors LP is a limited partnership organized under the laws of the State of
Delaware. Advisors LLC is a limited liability company organized under the laws
of the State of Delaware. Mr. Anderson is a United States citizen. Mr. Duryea is
a United States citizen.

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

      Common Shares.

Item 2(e). CUSIP Number:

      367299104

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,


                                                             Page 13 of 19 Pages


          (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]

Item 4. Ownership.

      The percentages used herein are calculated based upon 208,203,570 shares
of Common Stock outstanding, as reported in the Company's Quarterly Report on
Form 10-Q for the period ended September 30, 2007.

A.       The Ospraie Portfolio Ltd.

         (a)      Amount beneficially owned:  9,154,050 shares of Common Stock

         (b)      Percent of Class:  4.40%.

         (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:  9,154,050
                           shares of Common Stock
                  (iii)    sole power to dispose or direct the disposition:  0
                  (iv)     shared power to dispose or direct the
                           disposition:  9,154,050 shares of Common Stock.

B.       Ospraie Special Opportunities Master Holdings, Ltd.

         (a)      Amount beneficially owned:  9,154,050 shares of Common Stock

         (b)      Percent of Class:  4.40%.

         (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:  9,154,050
                           shares of Common Stock
                  (iii)    sole power to dispose or direct the disposition:  0
                  (iv)     shared power to dispose or direct the disposition:
                           9,154,050 shares of Common Stock.


                                                             Page 14 of 19 Pages


C. Ospraie Management, LLC

         (a)      Amount beneficially owned:  18,308,100 shares of Common Stock
         (b)      Percent of class: 8.79%
         (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:  18,308,100
                           shares of Common Stock
                  (iii)    Sole power to dispose or direct the disposition:  0
                  (iv)     Shared power to dispose or direct the disposition:
                           18,308,100 shares of Common Stock.

D. Ospraie Holding I, L.P.

         (a)      Amount beneficially owned:  18,308,100 shares of Common Stock
         (b)      Percent of class: 8.79%
         (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:  18,308,100
                           shares of Common Stock
                  (iii)    Sole power to dispose or direct the disposition:  0
                  (iv)     Shared power to dispose or direct the disposition:
                           18,308,100 shares of Common Stock.

E. Ospraie Management, Inc.

         (a)      Amount beneficially owned:  18,308,100 shares of Common Stock
         (b)      Percent of class: 8.79%
         (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:  18,308,100
                           shares of Common Stock
                  (iii)    Sole power to dispose or direct the disposition:   0
                  (iv)     Shared power to dispose or direct the disposition: 0
                           18,308,100 shares of Common Stock.

F. Ospraie Advisors, L.P.

         (a)      Amount beneficially owned:  9,154,050 shares of Common Stock
         (b)      Percent of class: 4.40%
         (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:  9,154,050
                           shares of Common Stock
                  (iii)    Sole power to dispose or direct the disposition:  0
                  (iv)     Shared power to dispose or direct the disposition:
                           9,154,050 shares of Common Stock.


                                                             Page 15 of 19 Pages


G. Ospraie Advisors, LLC

         (a)      Amount beneficially owned:  9,154,050 shares of Common Stock
         (b)      Percent of class: 4.40%
         (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:  9,154,050
                           shares of Common Stock
                  (iii)    Sole power to dispose or direct the disposition:  0
                  (iv)     Shared power to dispose or direct the disposition: 0
                           9,154,050 shares of Common Stock.

H. Dwight Anderson

         (a)      Amount beneficially owned:  18,308,100 shares of Common Stock
         (b)      Percent of class: 8.79%
         (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:  18,308,100
                           shares of Common Stock
                  (iii)    Sole power to dispose or direct the disposition:  0
                  (iv)     Shared power to dispose or direct the disposition:
                           18,308,100 shares of Common Stock.

I. John Duryea

         (a)      Amount beneficially owned:  9,154,050 shares of Common Stock
         (b)      Percent of class: 4.40%
         (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:  9,154,050
                           shares of Common Stock
                  (iii)    Sole power to dispose or direct the disposition: 0
                  (iv)     Shared power to dispose or direct the disposition:
                           9,154,050 shares of Common Stock.

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 5
percent of the class of securities, check the following [ ]


                                                             Page 16 of 19 Pages


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

      Not applicable

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

      Not applicable.

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

      Not applicable.

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.


                                                             Page 17 of 19 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, 2008

                                       OSPRAIE MANAGEMENT, LLC

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

                                       By:  Ospraie Management, Inc.,
                                            its General Partner

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule
                                            Authorized Signatory


                                       OSPRAIE HOLDING I, L.P.

                                       By:  Ospraie Management, Inc.,
                                            its General Partner

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule
                                            Authorized Signatory


                                       OSPRAIE MANAGEMENT, INC.,

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule
                                            Authorized Signatory


                                       OSPRAIE ADVISORS, L.P.

                                       By: Ospraie Advisors, LLC,
                                            its General Partner

                                       By:  Ospraie Management, LLC,
                                            its Managing Member

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

                                       By:  Ospraie Management, Inc.,
                                            its General Partner

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule
                                            Authorized Signatory


                                                             Page 18 of 19 Pages


                                       OSPRAIE ADVISORS, LLC

                                       By:  Ospraie Management, LLC,
                                            its Managing Member

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

                                       By:  Ospraie Management, Inc.,
                                            its General Partner

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule
                                            Authorized Signatory


                                       THE OSPRAIE PORTFOLIO LTD.

                                       By:  Ospraie Management, LLC,
                                            its Investment Manager

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

                                       By:  Ospraie Management, Inc.,
                                            its General Partner

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule
                                            Authorized Signatory


                                       OSPRAIE SPECIAL OPPORTUNITIES MASTER
                                       HOLDINGS LTD.

                                       By:  Ospraie Advisors L.P.,
                                            its Investment Manager

                                       By:  Ospraie Advisors, LLC,
                                            its General Partner

                                       By:  Ospraie Management, LLC,
                                            its Managing Member

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

                                       By:  Ospraie Management, Inc.,
                                            its General Partner

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule
                                            Authorized Signatory


                                                             Page 19 of 19 Pages


                                       DWIGHT ANDERSON

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule, Attorney-in-fact


                                       JOHN DURYEA

                                       By:  /s/ Kirk Rule
                                            --------------------------
                                            Kirk Rule, Attorney-in-fact



                                  EXHIBIT INDEX

Exhibit 99.1 -    Joint Filing Agreement

Exhibit 99.2 -    Power of Attorney, dated December 13, 2006, granted by Dwight
                  Anderson in favor of Kirk Rule, Eric Vincent and Michael
                  Fischer (incorporated by reference to Exhibit 99.1 of the
                  Schedule 13G filed by the reporting persons (other than
                  Portfolio and Master Holdings) on December 14, 2006 with
                  respect to Gastar Exploration Ltd.).

Exhibit 99.2 -    Power of Attorney, dated December 13, 2006, granted by John
                  Duryea in favor of Kirk Rule, Eric Vincent and Michael Fischer
                  (incorporated by reference to Exhibit 99.2 of the Schedule 13G
                  filed by the reporting persons (other than Portfolio and
                  Master Holdings) on December 14, 2006 with respect to Gastar
                  Exploration Ltd.).