Second Quarter 2006 Earnings Results




 HIGHLIGHTS

 --   Net income for the second quarter of fiscal 2006 was $60.2
      million on Time Charter Equivalent (TCE(1)) revenues of $216.3
      million

 --   Diluted EPS of $1.52 per share reflects a loss on the sale of
      vessels of $3.5 million or $0.07 per diluted share

 --   Cash and tax-effected Capital Construction Fund totaled $347.5
      million

 --   Total debt declined 20% from December 31, 2005 to $770.2 million

 --   Liquidity adjusted debt to capital was 17.0% versus 24.5% at
      December 31, 2005

 --   $30 million of high yield debt repurchased

 --   Two Product Carrier and two Aframax tanker charter-in commitments
      were announced during the quarter

 --   Board of Directors authorized share repurchase program of $300
      million in June

NEW YORK, Aug. 8, 2006 (PRIMEZONE) -- Overseas Shipholding Group, Inc. (NYSE:OSG), a market leader in providing energy transportation services, today reported results for the second fiscal quarter of 2006.

For the quarter ended June 30, 2006, net income was $60.2 million, down 47% from $114.2 million in the same period a year earlier. Diluted earnings per share were $1.52, compared with $2.89 per share in the second quarter of 2005. The year ago quarter benefited from gains on vessel sales of $13.2 million, or $0.32 per share, compared with a loss of $3.5 million, or $0.07 per share, in the current quarter. EBITDA for the second quarter declined 38% to $109.1 million from $176.3 million in the second quarter of 2005. TCE revenues in the quarter decreased by 5% to $216.3 million from $228.6 million in the second quarter of 2005. See Appendix 1 for a reconciliation of TCE revenues to shipping revenues and Appendix 2 for a reconciliation of EBITDA to net income.

For the six months ended June 30, 2006, the Company reported net income of $188.6 million, or $4.76 per share, a 32% decline from net income of $279.1 million, or $7.06 per diluted share, recorded in the first half of 2005. Net income for the first half of 2005 benefited from gains on ship disposals of $26.1 million, or $0.65 per share, compared with a loss of $3.6 million, or $0.07 per share, for the same period in fiscal 2006. EBITDA for the first six months of 2006 was $289.2 million, a 28% decrease from $399.7 million in the first half of 2005. TCE revenues for the six months of 2006 increased less than 1% to $496.4 million from $495.8 million in the first half of 2005.

Morten Arntzen, President and Chief Executive Officer, stated, "It was another quarter of strong performance in each of our sectors. In what is generally a seasonally weak quarter, our crude oil tanker fleet, which is entirely double hull, continued to benefit from the tanker market's greater discrimination against single hull tankers and from the tight oil markets across the globe. During the same period, we continued to produce steady results from our Product and U.S. segments, while also building a bigger book of longer term time charters." Mr. Arntzen continued, "We continue to generate strong cash flow, have nearly $350 million in cash and tax-effected Capital Construction Fund and $1.8 billion of credit, all available for future growth initiatives and our stock buyback program."

(1) See Appendix 1 for reconciliation to shipping revenues.

TCE revenues in the second quarter of 2006 for the Crude oil tanker segment were $145.6 million, a decrease of 1% quarter-over-quarter, principally due to a decrease in TCE rates earned and revenue days for Aframaxes, partially offset by increases in daily TCE rates earned on Panamaxes and VLCCs and in revenue days for VLCCs. TCE revenues for the Product Carrier segment were $49.3 million, a decrease of 7% from the year earlier period, principally as a result of profit sharing recognized on two clean Panamaxes in the 2005 period, partially offset by an increase in the average daily TCE rates earned by the Handysize Product Carriers. U.S. segment revenues were down 29% quarter-over-quarter to $15.1 million, as a result of a decrease in revenue days due to the sale of three crude oil tankers in 2005.

For the quarter ended June 30, 2006, total ship operating expenses increased $46.3 million from the corresponding quarter in 2005 to $168.8 million. The increase in vessel expenses of $9.6 million was principally attributable to increases in crew and environmental costs, the timing of certain purchases, repair costs on certain Panamax crude tankers and Handysize Product Carriers as well as costs incurred on three reflagged vessels that participate in the U.S. Maritime Security Program. The increase in time and bareboat charter expenses of $12.0 million resulted principally from the sale and charter back of 13 vessels. General and administrative expenses increased $7.6 million to $23.1 million principally due to an increase in compensation, including the recognition of targeted cash incentive compensation on a quarterly basis, expenses incurred in connection with an investigation by the U.S. Department of Justice and increases in legal, accounting and consulting services. In addition, lower earnings from asset sales accounted for an increase in quarter-over-quarter ship operating expenses of $16.7 million.



 RECENT ACTIVITIES AND QUARTERLY HIGHLIGHTS

 --   On August 7, 2006 OSG announced a strategic partnership with
      TransCanada (NYSE, TSX: TRP) to commercialize a new technology
      for compressed natural gas marine transportation. Based on an
      entirely new design and using a patented technology, OSG will own
      and operate vessels that will transport CNG from stranded gas
      fields throughout the world.

 --   On June 9, 2006, the Board of Directors authorized the repurchase
      of up to $300 million worth of the Company's common stock. The
      specific timing and amount of share repurchases will vary based
      on market conditions, securities law limitations and other
      factors. There have been no purchases under the program through
      today's date.

 --   During the quarter, the Company repurchased principal amounts of
      $23.9 million of its 8.25% notes and $6.7 million of its 8.75%
      debentures that are due in 2013.

 --   In connection with the Company's capital-efficient fleet
      expansion program, on June 16, OSG agreed to charter-in two
      product carriers from subsidiaries of Cido Tanker Holding Co. The
      tankers will be built at the Hyundai Mipo Dockyard in
      South Korea and are scheduled to be delivered to OSG in April 
      and July 2009.

 --   Future revenues associated with time charters as of June 30,
      excluding the Gas segment, totaled $826.8 million. This amount
      represented 30,978 revenue days, up from $746.1 million as of
      December 31, 2005.

 --   On July 13, 2006, the Company sold the Pacific Sapphire, a
      1994-built Aframax tanker, and will recognize a gain of
      approximately $14.0 million in the third quarter of 2006.
      Proceeds from the sale were $40.4 million.

 --   In June, the Board declared a $0.25 per share dividend to
      shareholders of record on August 8, 2006.

  FLEET METRICS AND STATISTICS

 --   As of June 30, 2006, OSG had an operating fleet of 91
      International Flag and U.S. Flag vessels. Fifty-five percent, or
      50 vessels, were owned, compared with 66%, or 63 vessels, as of
      June 30, 2005.

 --   Revenue days in the quarter totaled 7,533, a decrease of 5% over
      the same period a year earlier, principally due to the sale of
      older tankers.


                             Three Months Ended     Six Months Ended
                                  June 30,               June 30,
                      ------------------------------------------------
 Revenue Days                  2006        2005       2006        2005
 ---------------------------------------------------------------------
 Crude Tankers                4,108       4,183      8,020       8,024
 Product Carriers             2,625       2,663      5,225       4,919
 U.S.                           618         907      1,134       1,763
 Other                          182         181        362         361
                      ------------------------------------------------
                              7,533       7,934     14,741      15,067


 --  OSG's newbuild program of chartered-in and owned vessels totals
     26 and spans all lines of business: four International Flag
     Aframax tankers, eight International Flag product carriers, 10
     Jones Act product carriers (collectively representing 1.3 million
     deadweight tons), and four LNG carriers, (representing 864,800
     cubic meters). Detailed updates on most vessels under
     construction can be found in the Newbuild Program in the Fleet
     section of www.osg.com.

     --   At the Aker Philadelphia Shipyard, the steel structure of
          U.S. Flag product carrier Hull 005 is nearing completion and
          the deckhouse and engine stack were recently lifted into
          position atop the deck. The tanker is expected to be
          completed during the fourth quarter of 2006. Construction is
          underway for Hull 006 and Hull 007, which are scheduled for
          delivery in the second and fourth quarters, respectively, of
          2007.

     --   At the Samsung Heavy Industries shipyard in South Korea, the
          steel structure of the engine room and two cargo holds of
          LNG carrier Hull 1605 are largely completed and in the
          drydock. The keel was laid for Hull 1606 on July 3, 2006.
          Deliveries are slated for the third and fourth quarters of
          2007.

     --   At the Hyundai Heavy Industries shipyard in South Korea,
          approximately 60% of steel cutting and 20% of block assembly
          is complete for LNG carrier Hull 1791. On Hull 1792, steel
          cutting commenced on June 9th and block assembly is
          progressing. Deliveries are slated for the fourth quarter of
          2007 and the first quarter of 2008, respectively.

FINANCIAL PROFILE

During 2006, shareholders' equity increased by $182.5 million to $2.1 billion and liquidity, including undrawn bank facilities, increased to more than $2.14 billion. Total long-term debt as of June 30, 2006 was $770.2 million compared with $965.7 million at December 31, 2005. Liquidity adjusted debt to capital was 17.0% as of June 30, 2006, an improvement from 24.5% as of December 31, 2005.

AVERAGE TCE RATES ACHIEVED

The following table shows time charter equivalent revenues per day and revenue days (defined as ship operating days less lay-up, repair and drydock days) for the Company's International Flag fleet for the three and six months ended June 30, 2006 compared with the same periods of 2005.



                                Three Months Ended   Six Months Ended
                                      June 30,           June 30,
                               ---------------------------------------
                                   2006      2005      2006      2005
 ---------------------------------------------------------------------
 Trade - Crude Oil
 ---------------------------------------------------------------------
 VLCC
  Average TCE Rate(a)(b)         $49,036   $48,881   $63,843   $65,466
  Number of Revenue Days           1,633     1,534     3,265     3,006
 Aframax
  Average TCE Rate(a)            $26,729   $29,891   $32,184   $33,605
  Number of Revenue Days           1,479     1,561     2,841     3,084
 Panamax
  Average TCE Rate(a)            $26,048   $23,819   $27,566   $25,364
  Number of Revenue Days             996       999     1,914     1,766
 ---------------------------------------------------------------------
 Trade - Refined Petroleum
   Products
 ---------------------------------------------------------------------
 Panamax
  Average TCE Rate(a)            $19,531   $57,863   $22,104   $34,340
  Number of Revenue Days             179       182       359       410
 Handysize
  Average TCE Rate(a)(b)         $18,742   $17,186   $19,578   $17,431
  Number of Revenue Days           2,446     2,481     4,866     4,509

 (a) Includes vessels operating on voyage charters and period
     charters.

 (b) Includes the effect of forward freight agreements, which are used
     to create synthetic time charters.

SPOT AND TIME CHARTER TCE RATES ACHIEVED

The following table provides a breakdown of TCE rates achieved for the second quarters of 2006 and 2005 between spot and time charter rates. The information for VLCCs, Aframaxes and Panamaxes is based, in part, on information provided by the pools or commercial joint ventures in which they participate.



                               Three Months Ended  Three Months Ended
                                   June 30, 2006       June 30, 2005
                              ----------------------------------------
                                  Spot     Time      Spot       Time
                                Charter   Charter   Charter    Charter

 ---------------------------------------------------------------------
 Trade - Crude Oil
 ---------------------------------------------------------------------
 VLCC

  Average TCE Rate               $49,036       --    $48,881       --
  Number of Revenue Days           1,633       --      1,534       --
 Aframax
  Average TCE Rate               $26,468   $27,590   $32,234   $24,800
  Number of Revenue Days           1,142       337     1,069       492
 Panamax
  Average TCE Rate               $26,224   $25,895   $28,938   $19,572
  Number of Revenue Days             450       546       453       546

 ---------------------------------------------------------------------
 Trade - Refined Petroleum
  Products
 ---------------------------------------------------------------------
 Panamax
  Average TCE Rate                   --    $19,531       --    $57,863
  Number of Revenue Days             --        179       --        182
 Handysize
  Average TCE Rate               $24,462   $17,871   $27,351   $16,235
  Number of Revenue Days             643     1,803       290     2,191
 ---------------------------------------------------------------------

2006 TCE RATES

The Company has achieved the following average estimated TCE rates for the percentage of days booked for vessels operating through July 28, 2006. The information for the VLCCs, Aframaxes and Panamaxes is based, in part, on information provided by the pools or commercial joint ventures in which they participate. All numbers provided are estimates and may be adjusted for a number of reasons, including the timing of any vessel acquisitions or disposals and the timing and length of drydocks and repairs.



                                           Third Quarter Revenue Days
                                       -------------------------------

  Vessel Class and          Average    Fixed    Open
   Charter Type               TCE      as of    as of           % Days
                             Rates    7/28/06  7/28/06  Total   Booked
 ---------------------------------------------------------------------
   Trade - Crude Oil
 ---------------------------------------------------------------------
 VLCC - Spot                 $64,500    946       604   1,550     61%
 Aframax - Spot              $36,000    466       568   1,034     45%
 Aframax - Time              $29,000    330        --     330    100%
 ---------------------------------------------------------------------
 Panamax - Spot              $28,500    180       280     460     39%
 Panamax - Time              $25,000    552        --     552    100%
 ---------------------------------------------------------------------
   Trade - Refined
    Petroleum Products
 ---------------------------------------------------------------------
 Panamax - Time              $19,000    184        --     184    100%
 Handysize - Spot            $25,000    223       242     465     48%
 Handysize - Time            $18,000  2,062        --   2,062    100%
 ---------------------------------------------------------------------
 VLCC and V-Plus tankers trade in the Tankers International pool; Aframaxes 
 trade in the Aframax International pool and Panamaxes trade in the Panamax 
 International Shipping Company joint venture.

The following table shows average estimated time charter TCE rates and associated days booked and days open as of July 28, 2006, by quarter, for the fourth quarter of 2006.



                                    Fixed Rates and
                                     Revenue Days as       Open Days
                                       of 7/28/06        as of 7/28/06
                                    ----------------------------------
                                          Q406                Q406
 ---------------------------------------------------------------------
  Trade - Crude Oil
 ---------------------------------------------------------------------
 VLCC
  Average TCE Rate                                  --
  Number of Revenue Days                            --          1,576
 Aframax
  Average TCE Rate                             $28,500
  Number of Revenue Days                           282          1,047
 Panamax
  Average TCE Rate                             $25,000
  Number of Revenue Days                           549            460
 ---------------------------------------------------------------------
  Trade - Refined Petroleum Products
 ---------------------------------------------------------------------
 Panamax
  Average TCE Rate                             $19,000
  Number of Revenue Days                           184             --
 Handysize
  Average TCE Rate                              $18,000
  Number of Revenue Days                          2,069           676


 SUMMARY CONSOLIDATED STATEMENTS OF OPERATIONS

                          
                         
 ($ in thousands,          Three Months Ended       Six Months Ended
 except per share        ---------------------    --------------------
 amounts)                 June 30,     June 30,   June 30,    June 30,
                            2006        2005        2006        2005
                          --------    --------    --------    --------
 Shipping Revenues:

 Pool revenues            $133,002    $128,105    $326,107    $316,059
 Time and bareboat
  charter revenues          68,252      65,965     139,100     135,876
 Voyage charter
  revenues                  29,499      44,314      56,572      61,856
                          --------    --------    --------    --------
 Total Shipping
   Revenues                230,753     238,384     521,779     513,791
                          --------    --------    --------    --------
 Operating Expenses:
 Voyage expenses            14,449       9,786      25,366      18,006
 Vessel expenses            53,876      44,272     102,791      88,072
 Time and bareboat
  charter hire
  expenses                  38,056      26,022      81,227      51,823
 Depreciation and
  amortization              35,860      40,090      70,214      76,449
 General and
  administrative            23,070      15,516      47,081      31,537
 Loss/(gain) on
  disposal of vessels        3,498     (13,174)      3,619     (26,076)
                          --------    --------    --------    --------
   Total Operating
    Expenses               168,809     122,512     330,298     239,811
                          --------    --------    --------    --------
  Income from Vessel
  Operations                61,944     115,872     191,481     273,980
 Equity in Income of
  Affiliated
  Companies                  4,516      12,664      11,328      30,337
                          --------    --------    --------    --------
 Operating Income           66,460     128,536     202,809     304,317
 Other Income                6,794       7,671      16,186      18,894
                          --------    --------    --------    --------
                            73,254     136,207     218,995     323,211
 Interest Expense           15,134      25,569      37,741      48,400
                          --------    --------    --------    --------
 Income before
  Federal Income
  Taxes                     58,120     110,638     181,254     274,811
 Credit for Federal
  Income Taxes              (2,111)     (3,523)     (7,341)     (4,269)
                          --------    --------    --------    --------
 Net Income               $ 60,231    $114,161    $188,595    $279,080
                          ========    ========    ========    ========

 Weighted Average Number of Common Shares Outstanding:

  Basic                 39,536,097  39,447,473  39,526,087  39,441,276
  Diluted               39,590,687  39,512,839  39,580,119  39,505,969

 Per Share Amounts:
  Basic net income           $1.52       $2.89       $4.77       $7.08
  Diluted net income         $1.52       $2.89       $4.76       $7.06
  Cash dividends
   declared                  $0.50       $0.35      $0.675      $0.525


 2005 has been reclassified to conform with the 2006 presentation.

TCE REVENUE BY SEGMENT

The following table reflects TCE revenues generated by the Company's three reportable segments for the three and six months ended June 30, 2006 and 2005, respectively, and excludes the Company's proportionate share of TCE revenues of joint ventures. See Appendix 1 for reconciliations of Time Charter Equivalent revenues to Shipping Revenues.



                                    Three Months Ended June 30,
                            ------------------------------------------
 ($ in thousands)                        % of                    % of
                            2006         Total     2005          Total
 ---------------------------------------------------------------------
 International Flag

    Crude tankers         $145,552        67.3    $147,164        64.4
    Product carriers        49,340        22.8      53,169        23.3
    Other                    6,295         2.9       6,845         2.9
 U.S.                       15,117         7.0      21,420         9.4
                         ---------------------------------------------
 Total TCE  Revenues      $216,304       100.0    $228,598       100.0


                                     Six Months Ended June 30,
                         ---------------------------------------------
                                         % of                   % of
 ($ in thousands)          2006          Total      2005        Total
 ---------------------------------------------------------------------
 International Flag

    Crude tankers         $352,643        71.0    $348,811        70.4
    Product carriers       103,202        20.8      92,675        18.7
    Other                   12,496         2.5      13,129         2.6
 U.S.                       28,072         5.7      41,170         8.3
                         ---------------------------------------------
 Total TCE  Revenues      $496,413       100.0    $495,785       100.0

INCOME FROM VESSEL OPERATIONS BY SEGMENT

The following table reflects income from vessel operations accounted for by each reportable segment. Income from vessel operations is before general and administrative expenses, gain/(loss) on disposal of vessels and the Company's share of income from joint ventures.



                                    Three Months Ended June 30,
                         ---------------------------------------------
                                        % of                     % of
 ($ in thousands)          2006         Total      2005          Total
 ---------------------------------------------------------------------
 International Flag

   Crude tankers           $74,277       83.9      $82,950        70.2
   Product carriers         10,881       12.3       24,415        20.6
   Other(a)                  1,840        2.1        2,713         2.3
 U.S.                        1,514        1.7        8,136         6.9
                         ---------------------------------------------
 Total Income from
  Vessel Operations        $88,512       100.0    $118,214       100.0
                         =============================================



 (a) Reflects reserves related to a Department of Justice
     investigation and the settlement of certain crew benefits for the
     six months ended June 30, 2005.



                                      Six Months Ended June 30,
                          --------------------------------------------
                                       % of                      % of
 ($ in thousands)           2006       Total        2005         Total
 ---------------------------------------------------------------------
 International Flag
   Crude tankers          $204,052        84.3    $223,440        80.0
   Product carriers         31,415        13.0      40,883        14.7
   Other(a)                  3,651         1.5         297         0.0
 U.S.                        3,063         1.2      14,821         5.3
                         ---------------------------------------------
 Total Income from
  Vessel Operations       $242,181       100.0    $279,441       100.0
                         =============================================

 (a) Reflects reserves related to a Department of Justice
     investigation and the settlement of certain crew benefits for the
     six months ended June 30, 2005.

Reconciliations of income from vessel operations of the segments to income before federal income taxes as reported in the consolidated statements of operations follow:



                                Three Months Ended   Six Months Ended
                                     June 30,             June 30,
                                --------------------------------------
 ($ in thousands)                 2006      2005      2006      2005
 ---------------------------------------------------------------------
 Total income from vessel
  operations of all
  segments                      $ 88,512  $118,214  $242,181  $279,441
 General and administrative
  expenses                       (23,070)  (15,516)  (47,081)  (31,537)
 (Loss)/gain on disposal
   of vessels                     (3,498)   13,174    (3,619)   26,076
                                --------------------------------------
 Consolidated income from
  vessel operations               61,944   115,872   191,481   273,980
 Equity in income of
  affiliated companies             4,516    12,664    11,328    30,337
 Other income                      6,794     7,671    16,186    18,894
 Interest expense                (15,134)  (25,569)  (37,741)  (48,400)
                                --------------------------------------
 Income before
  federal income
  taxes                         $ 58,120  $110,638  $181,254  $274,811
                                ======================================


 CONSOLIDATED BALANCE SHEETS

                                              June 30,    December 31,
 ($ in thousands)                               2006          2005
                                             ----------    ----------
                                              (Unaudited)
 ASSETS
 Current Assets:
 Cash and cash equivalents                      $177,295      $188,588
 Voyage receivables                              124,527       157,334
 Other receivables                                55,665        22,202
 Inventories and prepaid expenses                 24,824        16,763
                                              ----------    ----------
    Total Current Assets                         382,311       384,887
 Capital Construction Fund                       300,282       296,126
 Vessels and other property                    2,108,682     2,288,481
 Vessels held for sale                           124,873            --
 Vessels under Capital Leases                     34,325        36,267
 Deferred drydock expenditures, net               35,540        19,805
                                              ----------    ----------
    Total Vessels, Deferred Drydock
     and Other Property                        2,303,420     2,344,553
                                              ----------    ----------

 Investments in Affiliated Companies             285,149       269,657
 Other Assets                                     56,558        53,457
                                              ----------    ----------
    Total Assets                              $3,327,720    $3,348,680
                                              ==========    ==========

 LIABILITIES AND SHAREHOLDERS' EQUITY

 Current Liabilities:

 Accounts payable, sundry
  liabilities and accrued expenses              $125,797      $105,173
 Short-term debt and current
  installments of long-term debt                  20,938        20,066
 Current obligations under capital
  leases                                           7,300         6,968
                                              ----------    ----------
    Total Current Liabilities                    154,035       132,207
 Long-term Debt                                  732,159       923,612
 Obligations under Capital Leases                 38,072        42,043
 Deferred Gain on Sale and Leaseback
  of Vessels                                     211,929       233,456
 Deferred Federal Income Taxes and
   Other Liabilities                             133,017       141,334
 Shareholders' Equity                          2,058,508     1,876,028
                                              ----------    ----------
    Total Liabilities and
     Shareholders' Equity                     $3,327,720    $3,348,680
                                              ==========    ==========

  CONSOLIDATED STATEMENTS OF CASH FLOWS

 ($ in thousands)                                  Six Months Ended
                                                        June 30,
                                                  --------------------
                                                    2006       2005
                                                  --------    --------
 Cash Flows from Operating Activities:

 Net income                                       $188,595    $279,080
 Items included in net income not
  affecting cash flows:

   Depreciation and amortization                    70,214      76,449
   Amortization of deferred gain on sale
    and leasebacks                                 (20,861)     (1,526)
   Deferred compensation relating to
    restricted stock and stock option
    grants                                           1,900         844
   Deferred federal income tax credit               (5,400)     (2,317)
   Undistributed earnings of affiliated
    companies                                        7,045      (8,629)
   Other - net                                       3,951      (3,784)

 Items included in net income related to
  investing and financing activities:

   Gain on sale of securities - net                 (8,889)    (12,203)
   Loss/(gain) on disposal of vessels                3,619     (26,076)
 Payments for drydocking                           (21,279)     (7,592)
 Changes in operating assets and
  liabilities                                           18     (28,324)
                                                  --------    --------
        Net cash provided by operating
         activities                                218,913     265,922
                                                  --------    --------
 Cash Flows from Investing Activities:
 Expenditures for vessels                           (5,394)     (1,215)
 Proceeds from disposal of vessels                     --      337,027
 Acquisition of interest in affiliated
  company that owned four V-Pluses                     --      (69,145)
 Acquisition of Stelmar Shipping Ltd                   --     (742,433)
 Expenditures for other property                    (3,293)     (6,368)
 Investments in and advances to affiliated
  companies                                            --       (7,486)
 Distributions from affiliated companies               --       20,660
 Other - net                                          (936)     15,562
                                                  --------    --------
        Net cash (used in) investing
         activities                                 (9,623)   (453,398)
                                                  --------    --------
 Cash Flows from Financing Activities:

 Issuance of debt, net of issuance costs            48,663     781,268
 Payments on debt and obligations under
  capital leases                                  (242,889)   (904,374)
 Cash dividends paid                               (16,807)    (13,805)
 Issuance of common stock upon exercise of
  stock options                                        215         156
 Other - net                                        (9,765)       (333)
                                                  --------    --------
        Net cash provided by/(used in)
         financing activities                     (220,583)   (137,088)
                                                  --------    --------
 Net decrease in cash and cash equivalents         (11,293)   (324,564)
 Cash and cash equivalents at beginning of
  year                                             188,588     479,181
                                                  --------    --------
 Cash and cash equivalents at end of period       $177,295    $154,617
                                                  ========    ========

 2005 has been reclassified to conform with the 2006 presentation.

FLEET

On June 30, 2006, OSG was the second largest publicly traded oil tanker company in the world as measured by number of vessels. OSG's fleet of 117 vessels, (prior to the June 28, 2006 announcement of the Company's intent to sell three vessels), including newbuilds, aggregates 13.0 million deadweight tons and 865,000 cbm. Adjusted for OSG's participation interest in joint ventures and chartered-in vessels, the fleet totaled 108.85 vessels. For current fleet information, which is updated on a quarterly basis, refer to the Company's website at www.osg.com.



                      Vessels     Vessels             Total at 
                       Owned    Chartered-in       June 30, 2006
                      ------------------------------------------------
                                                        
                                           Total  Vessels   Total
 Vessel Type            No. WBO  No.  WBO Vessels   WBO      Dwt
 ---------------------------------------------------------------------
 VLCC (including  
  V-Plus)                12  12  10   6.25   22   18.25   6,994,410
 Aframax                  9   9  10   7.60   19   16.60   1,968,408
 Panamax                  9   9   2   2.00   11   11.00     831,396
 Summary 
  International
  Flag  
  Crude 
  Tankers                30  30  22  15.85   52   45.85   9,794,214

 Panamax                  2  2    0      0    2    2.00      73,313

 Handysize               12  12  13  13.00   25   25.00   1,074,834
 Summary 
  International 
  Flag Product 
  Carriers               14  14  13  13.00   27   27.00   1,148,147

 International 
  Flag Dry
  Bulk Carriers           0   0   2   2.00    2    2.00     319,843
 Total 
  International 
  Flag
  Operating 
  Fleet                  44  44  37  30.85   81   74.85  11,262,204
 U.S. Flag 
  Operating 
  Fleet(a)                6   6   4   4.00   10   10.00     386,047
 Total Operating 
  Fleet                  50  50  41  34.85   91   84.85  11,648,251

 Newbuild Fleet
 International Flag
   Aframax Crude 
    Tankers               4   4   0      0    4    4.00     456,000
   Handysize Product
   Carriers               0   0   8   8.00    8    8.00     392,000
   U.S. Flag 
    Product 
    Carriers              0   0  10  10.00   10   10.00     460,000
 Subtotal of 
  Crude Tankers,
  Product 
  Carriers and
  Dry Bulk 
  Carriers               54  54  59  52.85  113  106.85  12,956,251
 Newbuild LNG 
  Carriers                4   2   0      0    4    2.00     864,800 cbm
 Total Operating 
  and Newbuild 
  Fleet                  58  56  59  52.85  117  108.85         --

 WBO = Weighted by Ownership

 (a) Includes three owned Product Carriers that trade internationally,
     thus the associated revenue is included in the Product Carrier
     segment.

Average Age of International Flag Operating Fleet

OSG has one of the youngest International Flag fleets in the industry. The Company believes its modern, well maintained fleet is a significant competitive advantage in the global market. The table below reflects the average age of the Company's owned International Flag fleet compared to the world fleet.



                                     Average Age of     Average Age of
                                      OSG's Owned         World Fleet
     Vessel Class                  Fleet at 6/30/06      at 7/1/06(a)
 ---------------------------------------------------------------------
   VLCC                                6.2 years          8.8 years
   Aframax                             8.6 years          9.2 years
   Panamax(b)                          3.3 years         10.5 years
   Handysize                           5.4 years         12.7 years

 (a) Source: Clarkson database as of July 1, 2006.

 (b) Includes Panamax tankers that trade crude oil and refined
     petroleum products.

Drydock Schedule

In addition to regular inspections by OSG personnel, all vessels are subject to periodic drydock, special survey and other scheduled maintenance. The table below sets forth anticipated days off-hire for these events by class for the Company's owned and bareboat chartered-in vessels.



                           Q206        Q306              Q406
                        ----------------------------------------------
                                     Pro-             Pro-
                          Actual    jected           jected
                           Days      Days             Days
                           Off-      Off-   No. of    Off-    No. of
                           Hire      Hire   Vessels   Hire    Vessels
 ---------------------------------------------------------------------
   Trade - Crude Oil
 ---------------------------------------------------------------------
 VLCC                        21        73        4      11        1
 Aframax                      3        12        2      11        1
 Panamax                      5         0        0       3        1
 ---------------------------------------------------------------------
 Trade - Refined
  Petroleum Products
 ---------------------------------------------------------------------
 Panamax                      3         0        0       0        0
 Handysize                  142       157        8      77        2
 U.S.                         2         5        1       0        0
 ---------------------------------------------------------------------
   Total                    176       247       15     102        5

MARKET OVERVIEW

Worldwide oil demand during the second quarter of 2006 was approximately 83.3 million barrels per day ("b/d"), an increase of 800,000 b/d, or 1.0%, compared with the second quarter of 2005. The increase in second quarter demand was centered in China where demand increased by 570,000 b/d, or 8.8%, and in the Middle East where demand grew by 330,000 b/d, or 5.4%. Demand in North America, the largest consuming area in the world, increased by 0.2% while demand in both OECD Europe and OECD Asia were down by 2.4% and 2.3%, respectively.

Worldwide oil demand for the first half of 2006 increased by 0.8% compared with the first six months of 2005. Demand declined in OECD countries primarily due to the warmer-than-normal temperatures in the U.S. Northeast during the first quarter of 2006 that reduced demand for heating oil. Demand growth in non-OECD areas rose by 3.3% as the robust economy in China increased product demand by 6.5%. Strong demand growth in China should continue during the remainder of 2006 driven by an expected 10.2% increase in GDP. Moreover, the start-up of the Hainan refinery in Southern China in the second half of 2006 will result in additional tonne-mile demand for the Far East market.

Tanker supply increased by 2.8%, or 8.7 million dwt (4.1 million dwt during the first quarter and 4.6 million dwt in the second quarter) in the first half of 2006 from year-end 2005 levels. While there was growth in all vessel categories, the highest percentage increase occurred in the Panamax sector, where tonnage increased by 8.0% since the beginning of the year. VLCCs, on the other hand, experienced the lowest percentage growth at 1.8%. This additional tonnage exerted downward pressure on TCE rates and is a key factor as to why rates during the first half of 2006 were lower than 2005 in all vessel categories except VLCCs.

Newbuilding vessel prices strengthened during the first six months, increasing by approximately 5% for crude tankers and by approximately 7% for Product Carriers from year-end 2005 levels. Shipyards are operating near full capacity and therefore have no imminent reason to reduce newbuilding prices. Prices for modern second hand vessels remained strong, holding about even with newbuilding prices as buyers remained willing to pay a premium for immediate delivery.

More-extensive-than-usual refinery maintenance programs, as well as unanticipated refinery downtime in the U.S., Japan and Aruba in the first half of 2006, had a negative impact on freight rates. Crude tanker rates improved, however, during June as the peak refinery maintenance ended in the U.S. and Asia, and Iran began utilizing VLCC tankers as floating storage facilities, effectively increasing overall crude tanker utilization rates.

Lower refinery utilization rates in the U.S. combined with changes in gasoline and diesel specifications resulted in increased gasoline product imports. Product Carrier rates in the second quarter followed Crude oil tanker rates, which were lower at the beginning of the quarter but higher at the end.

Geopolitical events continued to influence rates during the second quarter of 2006. The shut-in of approximately 500,000 b/d of production in Nigeria, as a result of continued attacks on its oil infrastructure, increasing concern over Iran's nuclear capabilities and a forecast for another active hurricane season in the U.S., were supportive of tanker rates during the quarter.

The opening of the Baku-Tbilisi-Ceyhan ("B-T-C") pipeline early in the third quarter provides a new outlet on the Mediterranean for light sweet Azeri crude oil, the flow of which will increase significantly in the next few years. The first lifting of Azeri crude oil from Ceyhan was moved in an Aframax vessel to a Mediterranean refinery. Pipeline flow is currently estimated at about 200,000 b/d and is forecast to increase to 400,000 b/d by the end of 2006 and to 850,000 b/d by the end of 2007. This crude can be utilized in refineries in Europe (replacing declining North Sea production), on the U.S. East Coast (substituting for North Sea or Nigerian crudes) and in Asia where there is increased demand for light sweet crude oil to meet lower sulfur specifications.

EARNINGS CONFERENCE CALL INFORMATION

The Company plans to host a conference call at 11:00 a.m. ET on August 8, 2006 to discuss results for the second quarter. All shareholders and other interested parties are invited to call into the conference call, which may be accessed by calling +1 800-231-5571 within the United States, or +1 973-582-2952 for international participants. A live webcast of the conference call and accompanying slide presentation will be available on Overseas Shipholding Group's website at http://www.osg.com in the Investor Relations Webcasts and Presentations section or via http://www.viavid.net. The webcast will be available for 90 days and requires Windows Media Player.

An audio replay of the conference call will be available from 2:00 p.m. ET on Tuesday, August 8, through midnight ET on Tuesday August 15, 2006 by calling +1 877-519-4471 within the United States or +1 973-341-3080 for international callers. The password for the replay is 7554304.

ABOUT OSG

Overseas Shipholding Group, Inc. (NYSE:OSG) is one of the largest publicly traded tanker companies in the world with an owned, operated and newbuild fleet of 117 vessels, aggregating 13.0 million dwt and 865,000 cbm, as of June 30, 2006. As a market leader in global energy transportation services for crude oil and petroleum products in the U.S. and International Flag markets, the Company is committed to setting high standards of excellence for its quality, safety and environmental programs. OSG is recognized as one of the world's most customer-focused marine transportation companies, with offices in New York, Athens, London, Newcastle and Singapore. More information is available at www.osg.com.

FORWARD-LOOKING STATEMENTS

This release contains forward-looking statements regarding the Company's prospects, including the outlook for tanker markets, changing oil trading patterns, prospects for certain strategic alliances and investments, estimated TCE rates achieved for the third and fourth quarters of 2006, anticipated levels of newbuilding and scrapping, projected drydock schedule, the projected growth of the world tanker fleet and the forecast of world economic activity and world oil demand. Factors, risks and uncertainties that could cause actual results to differ from expectations reflected in these forward-looking statements are described in the Company's Annual Report on Form 10-K.

APPENDIX 1 - TCE RECONCILIATION

Reconciliations of time charter equivalent revenues of the segments to shipping revenues as reported in the consolidated statements of operations follow:



                              Three Months Ended    Six Months Ended
                                   June 30,              June 30,
                             -----------------------------------------
 ($ in thousands)              2006        2005     2006        2005
 ---------------------------------------------------------------------
 Time charter equivalent
   revenues                  $216,304   $228,598   $496,413   $495,785
 Add:  Voyage expenses         14,449      9,786     25,366     18,006
                             -----------------------------------------
 Shipping revenues           $230,753   $238,384   $521,779   $513,791
                             =========================================

 Consistent with general practice in the shipping industry, the Company 
 uses time charter equivalent revenues, which represents shipping revenues 
 less voyage expenses, as a measure to compare revenue generated from a 
 voyage charter to revenue generated from a time charter. Time charter 
 equivalent revenues, a non-GAAP measure, provides additional meaningful 
 information in conjunction with shipping revenues, the most directly 
 comparable GAAP measure, because it assists Company management in making 
 decisions regarding the deployment and use of its vessels and in 
 evaluating their financial performance.

APPENDIX 2 - EBITDA RECONCILIATION

The following table shows reconciliations of net income, as reflected in the consolidated statements of operations, to EBITDA:



                              Three Months Ended     Six Months Ended
                                   June 30,             June 30,
                              ----------------------------------------
 ($ in thousands)               2006      2005       2006       2005
  --------------------------------------------------------------------
   Net income                 $60,231   $114,161   $188,595   $279,080
   Credit for federal
    income taxes               (2,111)    (3,523)    (7,341)    (4,269)
   Interest expense            15,134     25,569     37,741     48,400
   Depreciation and
    amortization               35,860     40,090     70,214     76,449
                             -----------------------------------------
   EBITDA                    $109,114   $176,297   $289,209   $399,660
                             =========================================

 EBITDA represents operating earnings, which is before interest expense and 
 income taxes, plus other income and depreciation and amortization expense. 
 EBITDA is presented to provide investors with meaningful additional 
 information that management uses to monitor ongoing operating results and 
 evaluate trends over comparative periods. EBITDA should not be considered 
 a substitute for net income or cash flow from operating activities 
 prepared in accordance with accounting principles generally accepted in 
 the United States or as a measure of profitability or liquidity. While 
 EBITDA is frequently used as a measure of operating results and  
 performance, it is not necessarily comparable to other similarly titled 
 captions of other companies due to differences in methods of calculation.

APPENDIX 3 - CAPITAL EXPENDITURES

The following table presents information with respect to OSG's capital expenditures for the three and six months ended June 30, 2006 and 2005.



                              Three Months Ended      Six Months Ended
                                   June 30,                June 30,
                              ------------------    ------------------
 ($ in thousands)               2006       2005       2006       2005
 ---------------------------------------------------------------------
 Expenditures for vessels       $437       $673     $5,394     $1,215

 Acquisition of interests
  in affiliated companies        --       69,145        --      69,145

 Investments in and
  advances to affiliated
  companies                      --        6,452        --       7,486
 Payments for drydockings      12,660      4,963     21,279      7,592
                              -------    -------    -------    -------
                              $13,097    $81,233    $26,673    $85,438
                              =======    =======    =======    =======


            

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