UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                  SCHEDULE 13D
                    Under the Securities Exchange Act of 1934

                                 AMENDMENT NO. 1

                        Overseas Shipholding Group, Inc.
                                -----------------
                                (Name of Issuer)

                                  Common Stock
                          -----------------------------
                         (Title of Class of Securities)

                                    690368105
                                    ---------
                                 (CUSIP Number)

                                 Frontline Ltd.
                          Par-La-Ville Place, 4th Floor
                              14 Par-La-Ville Road
                                 Hamilton HM 08
                                     Bermuda
                                  (441)295-6935

                                 With a copy to:
                               Gary J. Wolfe, Esq.
                               Seward & Kissel LLP
                             One Battery Park Plaza
                            New York, New York 10004
                                 (212) 574-1200
                                 --------------

                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 March 30, 2008
                                 --------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), Rule 13d-1(f) or Rule 13d-1(g), check the
following box [ ].

*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
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).



CUSIP NO. 690368105            SCHEDULE 13D


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 1.  NAME OF REPORTING PERSON                        Frontline Ltd.

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
------------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                  (a) [x]
                                                                       (b) [ ]
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 3.  SEC USE ONLY

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 4.  SOURCE OF FUNDS*                                                       AF

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 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
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 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                             Bermuda

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                    7.  SOLE VOTING POWER                                  -0-

   NUMBER OF       -----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                          1,550,000
   BENEFICIALLY
   OWNED BY EACH   -----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                             -0-

                   -----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                     1,550,000

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11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON    1,550,000

------------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                        [ ]
------------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)                   5.0%

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14.  TYPE OF REPORTING PERSON                                               CO

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CUSIP NO. 690368105            SCHEDULE 13D


------------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                            Hemen Holding Limited

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
------------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                 (a) [x]
                                                                       (b) [ ]
------------------------------------------------------------------------------
 3.  SEC USE ONLY

------------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                                       AF

------------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
------------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                               Cyprus

------------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                  -0-

   NUMBER OF       -----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                          1,550,000
   BENEFICIALLY
   OWNED BY EACH   -----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                             -0-

                   -----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                     1,550,000

------------------------------------------------------------------------------
11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON    1,550,000

------------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                        [ ]
------------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)                   5.0%

------------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                               CO

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CUSIP NO. 690368105            SCHEDULE 13D


------------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                        Bandama Investment Ltd.

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
------------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                  (a) [x]
                                                                       (b) [ ]
------------------------------------------------------------------------------
 3.  SEC USE ONLY

------------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                                       WC

------------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
------------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                  Republic of Liberia

------------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                  -0-

   NUMBER OF       -----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                            183,400
   BENEFICIALLY
   OWNED BY EACH   -----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                             -0-

                   -----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                       183,400

------------------------------------------------------------------------------
11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON      183,400

------------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                        [ ]
------------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)                   0.6%

------------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                               CO

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CUSIP NO. 690368105            SCHEDULE 13D


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 1.  NAME OF REPORTING PERSON                         Geveran Holdings S.A.

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
------------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                 (a) [X]
                                                                       (b) [ ]
------------------------------------------------------------------------------
 3.  SEC USE ONLY

------------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                                       AF

------------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
------------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                  Republic of Liberia

------------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                  -0-

   NUMBER OF       -----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                          1,444,900
   BENEFICIALLY
   OWNED BY EACH   -----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                             -0-

                   -----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                     1,444,900

------------------------------------------------------------------------------
11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON    1,444,900

------------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                        [ ]
------------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)                   4.7%

------------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                               CO

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CUSIP NO. 690368105            SCHEDULE 13D


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 1.  NAME OF REPORTING PERSON                         Monteray Enterprises Ltd

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
------------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                 (a) [X]
                                                                       (b) [ ]
------------------------------------------------------------------------------
 3.  SEC USE ONLY

------------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                                       WC

------------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
------------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                               Cyprus

------------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                  -0-

   NUMBER OF       -----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                          1,444,900
   BENEFICIALLY
   OWNED BY EACH   -----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                             -0-

                   -----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                     1,444,900

------------------------------------------------------------------------------
11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON    1,444,900

------------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                        [ ]
------------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)                   4.7%

------------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                               CO

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


CUSIP NO. 690368105            SCHEDULE 13D


------------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                                  John Fredriksen

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
------------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                 (a) [x]
                                                                       (b) [ ]
------------------------------------------------------------------------------
 3.  SEC USE ONLY

------------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                                       OO

------------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
------------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                               Cyprus

------------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                  -0-

   NUMBER OF       -----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                          2,994,900
   BENEFICIALLY
   OWNED BY EACH   -----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                             -0-

                   -----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                     2,994,900

------------------------------------------------------------------------------
11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON    2,994,900

------------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                        [ ]
------------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)                   9.7%

------------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                               IN

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CUSIP NO. 690368105            SCHEDULE 13D

The purpose of this  Amendment No. 1 to the Schedule 13D is to report the deemed
acquisition by certain of the filing  parties of the 1,366,600  common shares of
the Issuer covered by the agreement  referred to in Item 6 of this Amendment No.
1. Under that agreement, which was also described in the Schedule 13D, 1,366,600
common shares of the Issuer will be delivered to Frontline Ltd. on May 29, 2008.

Item 1.  Security and Issuer
----------------------------

     NO MATERIAL CHANGE FROM THE SCHEDULE 13D FILED ON MARCH 20, 2008.

Item 2.  Identity and Background
--------------------------------

     NO MATERIAL CHANGE FROM THE SCHEDULE 13D FILED ON MARCH 20, 2008.

Item 3.  Source and Amount of Funds or Other Consideration
----------------------------------------------------------

As  described  in  Item 6,  below,  Frontline  entered  in an  agreement  with a
financial institution whereby Frontline agreed to purchase 1,366,600 shares from
the Seller on May 29, 2008 for a purchase price of $92,177,170. This amount will
be paid on the settlement date.

The source of funds for the purchases of 183,400  shares of Common Stock held in
the  account of Bandama was  $14,637,154,  representing  the working  capital of
Bandama.

The source of funds for the  purchases of 1,444,900  shares of Common Stock held
in the account of Monteray was $93,147,150.76,  representing the working capital
of Monteray.

None of the other  persons named in response to Item 2 hold any shares of Common
Stock in their accounts.

Item 4.  Purpose of Transaction
-------------------------------

     NO MATERIAL CHANGE FROM THE SCHEDULE 13D FILED ON MARCH 20, 2008.



Item 5.  Interest in Securities of the Issuer
---------------------------------------------

(a), (b) According to information  provided by the Issuer, there were 30,789,694
shares of Common Stock  issued and  outstanding  as of March 17, 2008.  Based on
such  information,  the Reporting  Persons  report  beneficial  ownership of the
following shares of Common Stock:

Frontline may be deemed to  beneficially  own 1,550,000  shares of Common Stock,
representing approximately 5.0% of the outstanding shares of Common Stock of the
Issuer.  Frontline  has the sole power to vote 0 shares of Common  Stock and the
shared power to vote  1,550,000  shares of Common Stock.  Frontline has the sole
power to dispose of 0 shares of Common  Stock and the shared power to dispose of
1,550,000 shares of Common Stock.

Bandama  may be deemed  to  beneficially  own  183,400  shares of Common  Stock,
representing approximately 0.6% of the outstanding shares of Common Stock of the
Issuer.  Bandama  has the sole  power to vote 0 shares of  Common  Stock and the
shared power to vote 183,400 shares of Common Stock.  Bandama has the sole power
to  dispose  of 0 shares of Common  Stock and the  shared  power to  dispose  of
183,400 shares of Common Stock.

Hemen  may be deemed  to  beneficially  own  1,550,000  shares of Common  Stock,
representing approximately 5.0% of the outstanding shares of Common Stock of the
Issuer. Hemen has the sole power to vote 0 shares of Common Stock and the shared
power to vote  1,550,000  shares of Common  Stock.  Hemen has the sole  power to
dispose of 0 shares of Common Stock and the shared power to dispose of 1,550,000
shares of Common Stock.

Monteray may be deemed to  beneficially  own  1,444,900  shares of Common Stock,
representing approximately 4.7% of the outstanding shares of Common Stock of the
Issuer.  Monterey  has the sole  power to vote 0 shares of Common  Stock and the
shared power to vote  1,444,900  shares of Common  Stock.  Monteray has the sole
power to dispose of 0 shares of Common  Stock and the shared power to dispose of
1,444,900 shares of Common Stock.

Geveran may be deemed to  beneficially  own  1,444,900  shares of Common  Stock,
representing approximately 4.7% of the outstanding shares of Common Stock of the
Issuer.  Geveran  has the sole  power to vote 0 shares of  Common  Stock and the
shared  power to vote  1,444,900  shares of Common  Stock.  Geveran has the sole
power to dispose of 0 shares of Common  Stock and the shared power to dispose of
1,444,900 shares of Common Stock.

Mr.  Fredriksen  may be deemed to  beneficially  own 2,994,900  shares of Common
Stock, representing approximately 9.7% of the outstanding shares of Common Stock
of the  Issuer.  Mr.  Fredriksen  has the sole  power to vote 0 shares of Common
Stock  and the  shared  power to vote  2,994,900  shares of  Common  Stock.  Mr.
Fredriksen  has the sole power to  dispose  of 0 shares of Common  Stock and the
shared power to dispose of 2,994,900 shares of Common Stock.

None of the other  persons  named in  response  to Item 2 have the sole power to
vote or to direct  the vote,  the shared  power to vote or direct the vote,  the
sole power to dispose or to direct the disposition of the shares of Common Stock
that are the subject of this Statement.

(c) There  have not been any  transactions  in the shares of Common Stock by the
Reporting Persons since March 20, 2008, the date of the previously filed 13D. In
addition,  to the best of the Reporting  Persons'  knowledge,  none of the other
persons named in response to Item 2, were involved in any transactions in shares
of Common Stock since March 20, 2008, the date of the previously filed.

(d) No other person is known to have the right to receive or the power to direct
the receipt of  dividends  from,  or the  proceeds  from the sale of, any of the
Issuer's Common Stock beneficially owned by the Reporting Persons.

(e)  Not applicable.

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


Item 6.  Contracts, Arrangements, Understandings or Relationships with
Respect to Securities of the Issuer

On March 3, 2008,  Frontline  entered in an agreement  (the "Forward  Contract")
with DnB NOR Bank  ASA (the  "Seller")  whereby  Frontline  agreed  to  purchase
1,366,600  shares  from the  Seller on May 29,  2008,  for a  purchase  price of
$92,177,170.  In the event a  dividend  is paid by the  Issuer  prior to May 29,
2008, such dividend shall accrue to Frontline.

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


Item 7.  Material to be Filed as Exhibits
-----------------------------------------
Exhibit A -- Joint Filing Undertaking.




                                  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:  March 31, 2008

FRONTLINE LTD.

By: /s/ Bjorn Sjaastad
    ------------------------
Name:  Bjorn Sjastad
Title: Principal Executive Officer

BANDAMA INVESTMENT LTD.

By:  /s/ Inger M. Klemp
    ------------------------
Name: Inger M. Klemp
Title:President and Director

HEMEN HOLDING LIMITED

By: /s/ Eva Agathangelou
    ------------------------
Name: Eva Agathangelou
Title:Director

MONTEREY ENTERPRISES LTD.

By:  /s/ Marios Saveriades
    ------------------------
Name: Marios Saveriades
Title:Director

GEVERAN HOLDINGS S.A.

By:  /s/ Marios Saveriades
    ------------------------
Name: Marios Saveriades
Title:President and Director

JOHN FREDRIKSEN

/s/ John Fredriksen
-------------------
John Fredriksen




                                    Exhibit A
                            JOINT FILING UNDERTAKING

The undersigned, being duly authorized thereunto, hereby executes this agreement
as an exhibit to this Schedule 13D with respect to the shares of Common Stock of
Overseas  Shipholding  Group,  Inc. to evidence the agreement of the below-named
parties,  in accordance  with the rules  promulgated  pursuant to the Securities
Exchange Act of 1934, as amended, to file this Schedule 13D jointly on behalf of
each such party.

Dated:  March 31, 2008


FRONTLINE LTD.

By: /s/ Bjorn Sjaastad
    ------------------------
Name:  Bjorn Sjastad
Title: Principal Executive Officer

BANDAMA INVESTMENT LTD.

By:  /s/ Inger M. Klemp
    ------------------------
Name: Inger M. Klemp
Title:President and Director

HEMEN HOLDING LIMITED

By: /s/ Eva Agathangelou
    ------------------------
Name: Eva Agathangelou
Title:Director

MONTEREY ENTERPRISES LTD.

By:  /s/ Marios Saveriades
    ------------------------
Name: Marios Saveriades
Title:Director

GEVERAN HOLDINGS S.A.

By:  /s/ Marios Saveriades
    ------------------------
Name: Marios Saveriades
Title:President and Director

JOHN FREDRIKSEN

/s/ John Fredriksen
-------------------
John Fredriksen