Exhibit 99.1

                         The Premcor Refining Group Inc.
           Unaudited Pro Forma Combined Condensed Financial Statements

     The following unaudited pro forma combined condensed financial statements
give effect to the restructuring described in Item 2 to this Current Report on
Form 8-K. Certain of these pro forma statements, as described below, also give
effect to a contribution to PRG from the proceeds of the Premcor Inc. initial
public offering and application of those proceeds to redeem PRG's 9 1/2% senior
notes due 2004, on June 3, 2002 (the "IPO related transactions"). The effects of
the IPO related transactions were not part of the restructuring. However, the
effects of the IPO related transactions have been included in certain of the
unaudited pro forma combined condensed financial statements because they are not
reflected in the historical financial statements and are considered material.

     The unaudited pro forma combined condensed balance sheet as of March 31,
2002 gives effect to the restructuring and IPO related transactions as if each
had occurred on March 31, 2002. The unaudited pro forma combined condensed
statements of operations for the quarter ended March 31, 2002 and the year ended
December 31, 2001 give effect to the restructuring and IPO related transactions
as if each had occurred on January 1, 2002 and January 1, 2001, respectively.
The unaudited pro forma combined condensed statements of operations for the
years ended December 31, 2000 and 1999 give effect to the combination of PRG and
Sabine as if the combination had occurred on January 1st of the applicable year,
but do not reflect transactions related to the restructuring or the IPO related
transactions. The unaudited pro forma combined condensed financial statements
are based on assumptions that PRG believes are reasonable under the
circumstances and are intended for informational purposes only. These statements
are not necessarily indicative of the financial position or future financial
results of the combined companies or of the financial position or the results of
operations that would have actually occurred had the restructuring and IPO
related transactions taken place as of the date or for the periods presented.

     These unaudited pro forma combined condensed statements should be read in
conjunction with Sabine's and PRG's Annual Reports on Form 10-K for the year
ended December 31, 2001 and Quarterly Reports on Form 10-Q for the quarter ended
March 31, 2002. The pro forma adjustments use estimates and assumptions based on
currently available information. Management believes that the estimates and
assumptions are reasonable, and that the significant effects of the transactions
are properly reflected. However, actual results may differ from this pro forma
information.

     The unaudited pro forma combined condensed statements of operations do not
include the effects of nonrecurring charges related to the restructuring and IPO
related transactions, which include the write-off of deferred charges and
payments of premiums related to the early redemption of debt at both PRG and
Sabine. These nonrecurring charges in the aggregate were $13.7 million ($8.8
million net of income taxes) as of March 31, 2002.



              UNAUDITED PRO FORMA COMBINED CONDENSED BALANCE SHEET
                              As of March 31, 2002



                                               Historical                                            Adjustments
                                          ------------------                               ----------------------------
                                                                                             Contribution
                                                                                                from
                                                              Intercompany                     Premcor                         Pro
                                             PRG     Sabine   Eliminations     Combined       Inc. IPO    Restructuring       Forma
                                          --------- --------  -------------    ----------  -------------  -------------     --------
             Assets                                                          (in millions)
                                                                                                     
Current Assets:
  Cash and cash equivalents ............  $  207.5  $  152.5                 $   360.0     $   (0.6)(d)    $   (97.3)(e)  $  200.2
                                                                                                               (61.9)(i)
  Cash restricted for debt
  service ..............................        --      53.4                      53.4                         (53.4)(e)      61.9
                                                                                                                61.9 (i)

  Short-term investments ...............       1.7        --                       1.7                                         1.7
  Accounts receivable ..................     214.6        --                     214.6                                       214.6
  Receivable from affiliates ...........      65.2      74.1     (96.1)(a)        43.2                                        43.2
  Inventories ..........................     316.3      15.8                     332.1                                       332.1
  Prepaid expenses and other ...........      37.9       8.8                      46.7                          (4.5)(f)      42.2
  Net assets held for sale .............      61.0        --                      61.0                                        61.0
                                          --------  --------   -------       ---------     --------         --------      --------
     Total current assets ..............     904.2     304.6     (96.1)        1,112.7         (0.6)(d)       (155.2)        956.9

Property, plant and equipment,
net ....................................     550.5     627.6                   1,178.1                                     1,178.1
Deferred income taxes ..................      50.3        --     (36.0)(j)        14.3          0.5 (c)          4.4 (g)      19.2
Other assets ...........................     133.3      16.6                     149.9         (1.2)(c)          9.4 (e)     151.0
                                                                                                                (7.1)(f)

Note receivable from affiliate .........       2.4        --      (2.4)(a)          --                                          --
                                          --------  --------  --------       ---------     --------        ---------      --------
                                          $1,640.7  $  948.8  $ (134.5)      $ 2,455.0     $   (1.3)       $  (148.5)     $2,305.2
                                          ========  ========  ========       =========     ========        =========      ========

  Liabilities And Stockholder's
              Equity
Current Liabilities:
  Accounts payable .....................  $  334.6  $  129.6                 $   464.2                                    $  464.2
  Payable to affiliates ................     114.4      54.1     (93.5)(a)        75.0                                        75.0
  Accrued expenses and other ...........      93.9      11.1                     105.0         (0.6)(d)         (3.2)(e)     101.2
  Accrued taxes other than
     income ............................      23.4       2.3                      25.7                                        25.7
  Current portion of long-term
     debt ..............................       1.4      26.9                      28.3                         (22.6)(e)       5.7
  Current portion of notes
     payable to affiliate ..............        --       2.6      (2.6)(a)          --                                          --
                                           -------  --------  --------       ---------     --------        --------       --------
     Total current liabilities .........     567.7     226.6     (96.1)          698.2         (0.6)           (25.8)        671.8

Long-term debt .........................     784.0     449.5                   1,233.5       (150.4)(b)       (198.8)(e)     884.3

Deferred income taxes ..................        --      36.0     (36.0)(j)          --                                          --
Other long-term liabilities ............     143.9       0.1                     144.0                                       144.0
Note payable to affiliate ..............        --       2.4      (2.4)(a)          --                                          --
Commitments and contingencies ..........        --        --                        --                                          --

Common Stockholder's Equity:
  Common stock .........................        --       0.1                       0.1                          (0.1)(h)        --
  Paid-in capital ......................     140.8     121.7                     262.5        150.4 (b)        225.6 (e)     601.5
                                                                                                               (37.1)(e)
                                                                                                                 0.1 (h)

  Retained earnings ....................       4.3     112.4                     116.7         (0.7)(c)       (104.3)(e)       3.6
                                                                                                               (11.6)(f)
                                                                                                                (0.9)(e)
                                                                                                                 4.4 (g)
                                          --------  --------  --------       ---------      -------        ---------      --------
  Total common stockholder's
  equity ...............................     145.1     234.2        --           379.3        149.7             76.1         605.1
                                          --------  --------  --------        ---------     --------       ---------      --------
                                          $1,640.7  $  948.8  $ (134.5)      $ 2,455.0     $   (1.3)       $  (148.5)     $2,305.2
                                          ========  ========  ========       =========     ========        =========      ========





          NOTES TO UNAUDITED PRO FORMA COMBINED CONDENSED BALANCE SHEET
                              As of March 31, 2002

(a)    Represents the elimination of intercompany receivable and payable
       balances.

(b)    Represents a contribution of $150.4 million in proceeds to PRG from the
       Premcor Inc. initial public offering, which PRG used to redeem its 9 1/2%
       senior notes due 2004 on June 3, 2002.

(c)    Represents the write-off of unamortized debt costs associated with the
       repayment of PRG's 9 1/2% senior notes due 2004 and the income tax effect
       of the write-off at PRG's effective income tax rate of 39%.

(d)    Represents the payment of accrued interest on PRG's 9 1/2% senior notes
       due 2004.

(e)    Represents adjustments to reflect the sources and uses of cash to effect
       the restructuring (in millions):

             Capital contribution from Premcor Inc. .........   $   225.6
             Cash restricted for debt service as
             of March 31, 2002 ..............................        53.4
             Repay senior secured bank loan:
                Current portion .............................       (22.6)
                Long-term portion ...........................      (198.8)
                Interest ....................................        (3.2)
                Premium for early payment ...................        (0.9)
             Dividend paid to Premcor Inc. ..................      (141.4)
             Transaction fees and expenses ..................        (9.4)
                                                                ---------
                      Net use of cash .......................   $   (97.3)
                                                                =========

(f)    Represents adjustments to write-off $7.1 million in debt issuance costs
       associated with Sabine's senior secured bank loan and $4.5 million
       related to terminated insurance policies.

(g)    Represents the income tax effect of the write-offs of debt issuance costs
       and prepaid insurance premiums and the payment of the premium for the
       early repayment of the senior secured bank loan, all based on Sabine's
       effective income tax rate of 35%.

(h)    Represents adjustments necessary to reflect Sabine as a consolidated
       subsidiary.

(i)    Represents adjustments necessary to reflect cash restricted for debt
       service.

(j)    Represents adjustments to reclassify deferred income tax assets and
       liabilities.




         UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS
                     For the quarter ended March 31, 2002



                                        Historical                                                 Adjustments
                                  -----------------------                                  ---------------------------
                                                                                           Contribution
                                                                                               from
                                                             Intercompany                  Premcor Inc.                      Pro
                                     PRG         Sabine      Eliminations     Combined         IPO        Restructuring     Forma
                                  ----------    -------      ------------    ----------    -----------    -------------    -------
                                                                            (in millions)
                                                                                                     
Net sales and operating
  revenues .....................  $ 1,255.9     $  420.7     $  (27.6)(b)    $ 1,228.3                                    $1,228.3
                                                               (420.7)(c)
Expenses:
  Cost of sales ................    1,123.1        379.6       (418.6)(b)      1,062.0                    $   (0.5)(f)     1,061.5
                                                                (22.1)(c)
  Operating expenses ...........       88.3         33.7         (7.6)(c)        114.4                                       114.4

  General and administrative
     expenses ..................       14.9          1.1                          16.0                        (0.2)(g)        15.8
  Depreciation and
    amortization ...............       17.0          5.2                          22.2                                        22.2
  Refinery restructuring
     and other charges .........      142.0           --                         142.0                                       142.0
                                  ---------     --------     --------        ---------     --------       --------        --------
                                    1,385.3        419.6       (448.3)         1,356.6           --           (0.7)        1,355.9

Operating income (loss) ........     (129.4)         1.1           --           (128.3)          --            0.7          (127.6)

Interest expense and
  finance income, net ..........      (14.6)       (13.7)                        (28.3)         3.7(d)         4.0 (h)       (20.6)
                                  ---------     --------     --------        ---------     --------       --------        --------

Loss before income taxes .......     (144.0)       (12.6)          --           (156.6)         3.7            4.7          (148.2)

Income tax benefit .............       56.0          4.5                          60.5         (1.4)(e)       (1.6)(i)        57.5
                                  ---------     --------     --------        ---------     --------       --------        --------

Net loss .......................  $   (88.0)    $   (8.1)    $     --        $   (96.1)    $    2.3       $    3.1        $  (90.7)
                                  =========     ========     ========        =========     ========       ========        ========

EBITDA .........................  $  (112.4)    $    6.3     $     --        $  (106.1)    $     --       $    0.7        $ (105.4)
                                  =========     ========     ========        =========     ========       ========        ========

Adjusted EBITDA (a) ............  $    29.6     $    6.3     $     --        $    35.9     $     --       $    0.7        $   36.6
                                  =========     ========     ========        =========     ========       ========        ========




         UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS
                      For the year ended December 31, 2001



                                           Historical                                                Adjustments
                                      ----------------------                                ----------------------------
                                                                                            Contribution
                                                                                                from
                                                               Intercompany                  Premcor Inc.                    Pro
                                       PRG         Sabine      Eliminations     Combined        IPO        Restructuring    Forma
                                     ---------    ---------    ------------   ------------- ------------   -------------   --------
                                                                              (in millions)
                                                                                                      
Net sales and operating revenues ... $6,532.8     $1,882.4     $  (122.2)(b)   $ 6,417.4                                   $6,417.4
                                                                (1,877.2)(c)
                                                                     1.6 (j)

Expenses:
  Cost of sales ....................  5,759.9      1,460.2      (1,871.3)(b)     5,253.1                   $   (2.2)(f)     5,250.9
                                                                   (95.7)(c)
  Operating expenses ...............    358.9        140.4          20.0 (b)       466.9                                      466.9
                                                                   (52.4)(c)

  General and administrative
     expenses ......................     59.0          4.1                          63.1                       (0.6)(g)        62.5
  Depreciation and amortization ....     71.4         20.5                          91.9                                       91.9
  Refinery restructuring
     and other charges .............    176.2           --                         176.2                                      176.2
                                     --------     --------     ---------       ---------      --------     --------        --------
                                      6,425.4      1,625.2      (1,999.4)        6,051.2                       (2.8)        6,048.4

Operating income ...................    107.4        257.2           1.6           366.2                        2.8           369.0

Interest expense and finance
  income, net ......................    (62.2)       (60.1)                       (122.3)         16.3(d)      29.2 (h)       (76.8)
                                     --------     --------     ---------       ---------      --------     --------        --------

Income from continuing operations
  before income taxes and
  extraordinary item ...............     45.2        197.1           1.6           243.9          16.3         32.0           292.2

Income tax provision ...............     (3.7)       (69.0)           --           (72.7)         (6.4)(e)    (11.2)(i)       (90.3)
                                     --------     --------     ---------       ---------      --------     --------        --------

Income from continuing operations
  before extraordinary item ........     41.5        128.1           1.6           171.2           9.9         20.8           201.9

Loss from discontinued operations,
  net of income tax benefit of
  $11.5 million ....................    (18.0)          --                         (18.0)           --                        (18.0)
                                     --------     --------     ---------       ---------      --------     --------        --------

Income before extraordinary item ...     23.5        128.1           1.6           153.2           9.9         20.8           183.9

Gain on repurchase of long-term
  debt, net of income taxes
  of $0.3 million ..................      0.5           --            --             0.5            --           --             0.5
                                     --------     --------     ---------       ---------      --------     --------        --------

Net income ......................... $   24.0     $  128.1     $     1.6       $   153.7      $    9.9     $   20.8        $  184.4
                                     ========     ========     =========       =========      ========     ========        ========

EBITDA ............................. $  178.8     $  277.7     $     1.6       $   458.1      $     --     $    2.8        $  460.9
                                     ========     ========     =========       =========      ========     ========        ========

Adjusted EBITDA (a) ................ $  355.0     $  277.7     $     1.6       $   634.3      $     --     $    2.8        $  637.1
                                     ========     ========     =========       =========      ========     ========        ========




         UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS
                      For the year ended December 31, 2000



                                                                         Historical
                                                             ---------------------------------
                                                                                                 Intercompany       Pro Forma
                                                                    PRG            Sabine        Eliminations       Combined
                                                             ----------------  ---------------  ---------------  --------------
                                                                                (in millions)
                                                                                                     
Net sales and operating revenues .......................         $  7,311.8       $   100.3      $    (8.5)(b)      $ 7,301.7
                                                                                                    (100.3)(c)
                                                                                                      (1.6)(j)

Expenses:
  Cost of sales ........................................            6,586.5            83.6          (99.8)(b)        6,564.1
                                                                                                      (6.2)(c)

  Operating expenses ...................................              459.3            10.2            5.2 (b)          466.7
                                                                                                      (8.0)(c)
  General and administrative expenses ..................               51.6             1.1             --               52.7
  Depreciation and amortization ........................               71.7              --             --               71.7
                                                                 ----------       ---------      ---------          ---------
                                                                    7,169.1            94.9         (108.8)           7,155.2

Operating income .......................................              142.7             5.4           (1.6)             146.5

Interest expense and finance income, net ...............              (61.1)           (3.2)            --              (64.3)
                                                                 ----------       ---------      ---------          ---------

Income before income taxes .............................               81.6             2.2           (1.6)              82.2

Income tax (provision) benefit .........................               (1.9)            4.1             --                2.2
                                                                 ----------       ---------      ---------          ---------


Net income .............................................         $     79.7       $     6.3      $    (1.6)         $    84.4
                                                                 ==========       =========      =========          =========


EBITDA .................................................         $    214.4       $     5.4      $    (1.6)         $   218.2
                                                                 ==========       =========      =========          =========




         UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS
                      For the year ended December 31, 1999



                                                                      Historical
                                                           ---------------------------------
                                                                                                  Intercompany         Pro Forma
                                                                PRG              Sabine           Eliminations         Combined
                                                           --------------    ---------------    -----------------    -------------
                                                                              (in millions)
                                                                                                         
Net sales and operating revenues .......................   $   4,520.3       $       --         $         --         $    4,520.3

Expenses:
  Cost of sales ........................................       4,102.0               --                   --              4,102.0
  Operating expenses ...................................         402.0               --                   --                402.0
  General and administrative expenses ..................          48.3              3.1                   --                 51.4
  Depreciation and amortization ........................          63.0               --                   --                 63.0
  Inventory recovery from market write-down ............        (105.8)              --                   --               (105.8)
                                                           -----------       ----------         ------------         ------------
                                                               4,509.5              3.1                   --              4,512.6

Operating income (loss) ................................          10.8             (3.1)                  --                  7.7

Interest expense and finance income, net ...............         (61.5)           (10.8)                  --                (72.3)
                                                           -----------       ----------         ------------         ------------

Loss from continuing operations before
  income taxes .........................................         (50.7)           (13.9)                  --                (64.6)

Income tax benefit .....................................          16.2               --                   --                 16.2
                                                           -----------       ----------         ------------         ------------

Loss from continuing operations ........................         (34.5)           (13.9)                  --                (48.4)

Discontinued operations:
  Loss from operations, net of tax benefit of
     $2.7 ..............................................          (4.3)              --                   --                 (4.3)
  Gain on disposal of discontinued operations,
     net of income tax provision of $23.3 ..............          36.6               --                   --                 36.6
                                                           -----------       ----------         ------------         ------------

Net loss ...............................................   $      (2.2)      $    (13.9)        $         --         $      (16.1)
                                                           ===========       ==========         ============         ============


EBITDA .................................................   $      73.8       $     (3.1)        $         --         $       70.7
                                                           ===========       ==========         ============         ============





    NOTES TO UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENTS OF OPERATIONS
              For the quarter ended March 31, 2002 and years ended
                       December 31, 2001, 2000, and 1999

(a)    Adjusted EBITDA represents EBITDA excluding refinery restructuring and
       other charges of $142.0 million in the quarter ended March 31, 2002 and
       $176.2 million in 2001. The $142.0 million in charges for the quarter
       ended March 31, 2002 included $131.2 million related to the announced
       discontinuation of refining operations at our Hartford refinery and $10.8
       million primarily due to severance and other charges related to corporate
       restructuring. The $176.2 million in charges in 2001 included $167.2
       million related to the closure of our Blue Island refinery and $9.0
       million related to a write-off of idled coker units at the Port Arthur
       refinery. Adjusted EBITDA is presented because PRG believes it is a
       useful indicator to its investors of its ability to incur and service
       debt based on its ongoing operations. Adjusted EBITDA should not be
       considered by investors as an alternative to operating income or net
       income as an indicator of performance, nor as an alternative to cash
       flows from operating activities, investing activities or financing
       activities as a measure of liquidity. Because all companies do not
       calculate EBITDA identically, this presentation of adjusted EBITDA may
       not be comparable to EBITDA, adjusted EBITDA or other similarly-titled
       measures of other companies.

(b)    Represents the elimination of PRG's revenue and expense from intercompany
       transactions with PACC.

(c)    Represents the elimination of PACC's revenue and expense from
       intercompany transactions with PRG.

(d)    Represents interest expense and debt amortization costs of the 9 1/2%
       senior notes for the year ended December 31, 2001 and for the quarter
       ended March 31, 2002.

(e)    Represents the income tax effect of the adjustments relating to the
       redemption of our 9 1/2% senior notes at PRG's effective income tax rate
       of 39%.

(f)    Represents annual cost savings from cancellation of insurance policies
       and Sabine's working capital facility based on 2001 actual cost, offset
       by an estimated annual increase in letter of credit usage under PRG's
       amended working capital facility at 2.9% per annum. Amounts have been
       pro-rated for the quarter ended March 31, 2002.

(g)    Represents cost savings related to the elimination of independent
       director fees, two full-time equivalent employees and redundant trustee
       and rating agency fees.

(h)    Represents $29.5 million in annual interest expense savings, a $1.5
       million reduction in annual debt amortization costs relating to the
       repayment of $287.6 million in senior secured bank loans based on the
       actual 2001 interest cost, and a net $0.4 million in annual cost savings
       representing the difference in the cost of Sabine's insurance policies
       and working capital facility versus an estimated increase in the amended
       working capital facility usage at 2.9% per annum. These savings are
       partially offset by a $2.2 million increase in amortization of the
       consent fees and other costs of the restructuring. Adjustments for the
       quarter ended March 31, 2002 are based on actual first quarter 2002
       amounts.

(i)    Represents the income tax effect of the adjustments relating to the
       restructuring at Sabine's effective income tax rate of 35%.

(j)    Represents the elimination of intercompany profit between PRG and Sabine
       as of the year ended December 31, 2000 and the reversal of this
       elimination in the year ended December 31, 2001.