UNITED STATES
                    SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549


                                   FORM 10-Q
        


X       QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
        SECURITIES EXCHANGE ACT OF 1934 

              For the quarterly period ended March 31, 1999

                                       OR

        
        TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
        SECURITIES EXCHANGE ACT OF 1934

           For the transition period from  __________ to __________

                        Commission file number 1-13514

                                CLARK USA, INC.
        (Exact name of registrant as specified in its charter)


                  Delaware                               43-1495734
        (State or other jurisdiction                  (I.R.S. Employer
        of incorporation or organization)            Identification No.)

             8182 Maryland Avenue                         63105-3721
             St. Louis, Missouri                          (Zip Code)
    (Address of principal executive offices)

       Registrant's telephone number, including area code (314) 854-9696

	Indicate by check mark whether the registrant: (1) has filed all 
reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months (or for such shorter 
period that the registrant was required to file such reports), and (2) 
has been subject to such filing requirements for the past 90 days.
Yes (x) No (  )

	Number of shares of registrant's common stock, $.01 par value, 
outstanding as of May 14, 1999, 19,934,495, all of which were owned by 
Clark Refining Holdings, Inc.

 1


                        REPORT OF INDEPENDENT ACCOUNTANTS


To the Board of Directors of 
Clark USA, Inc:


We have reviewed the accompanying consolidated balance sheet of Clark 
USA, Inc. and Subsidiaries (the "Company") as of March 31, 1999, and the 
related consolidated statements of operations and cash flows for the 
three month periods ended March 31, 1998 and 1999.  These financial 
statements are the responsibility of the Company's management.

We conducted our review in accordance with standards established by the 
American Institute of Certified Public Accountants.  A review of interim 
financial information consists principally of applying analytical 
procedures to financial data and making inquiries of persons responsible 
for financial and accounting matters.  It is substantially less in scope 
than an audit conducted in accordance with generally accepted auditing 
standards, the objective of which is the expression of an opinion 
regarding the financial statements taken as a whole.  Accordingly, we do 
not express such an opinion. 

Based on our review, we are not aware of any material modifications that 
should be made to such consolidated financial statements for them to be 
in conformity with generally accepted accounting principles. 

We have previously audited, in accordance with generally accepted 
auditing standards, the consolidated balance sheet of the Company as of 
December 31, 1998, and the related consolidated statements of  
operations, stockholders' equity, and cash flows for the year then ended 
(not presented herein); and in our report dated February 6, 1999, we 
expressed an unqualified opinion on those consolidated financial 
statements.  In our opinion, the information set forth in the 
accompanying consolidated balance sheet as of December 31, 1998 is 
fairly stated, in all material respects, in relation to the consolidated 
balance sheet from which it has been derived.




Deloitte & Touche LLP




St. Louis, Missouri
May 14, 1999


 2

                        CLARK USA, INC. AND SUBSIDIARIES
                          CONSOLIDATED BALANCE SHEETS
                     (dollars in millions, except share data)



                                     Reference     December 31,   March 31,
                                        Note          1998          1999
                                     ----------   ------------   ----------
                                                           
      ASSETS                                                     (unaudited)

CURRENT ASSETS:                                                 
   Cash and cash equivalents                       $    148.2    $    104.3
   Short-term investments                                 4.5           4.8
   Accounts receivable                                  131.3         142.8
   Inventories                            3             267.7         277.3
   Prepaid expenses and other                            28.7          27.6
   Net assets held for sale               7             140.3         140.6
                                                  ------------   ----------
       Total current assets                             720.7         697.4

PROPERTY, PLANT AND EQUIPMENT, NET                      628.8         660.7
OTHER ASSETS                            4,5              97.6         116.8
                                                  ------------   ----------
                                                   $  1,447.1    $  1,474.9
                                                  ============   ==========

      LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES:                                             
   Accounts payable                                $    250.3    $    237.1
   Accrued expenses and other            5               66.8          75.7
   Accrued taxes other than income                       25.9          26.9
                                                  ------------   ----------
      Total current liabilities                         343.0         339.7

LONG-TERM DEBT                                          980.2         979.4
OTHER LONG-TERM LIABILITIES                              49.2          49.6
COMMITMENTS AND CONTINGENCIES            8                 --            --

EXCHANGEABLE PREFERRED STOCK
    ($.01 par value per share;
     5,000,000 shares authorized;
     74,504 shares issued)                               72.5          74.5

COMMON STOCKHOLDERS' EQUITY:
   Common stock
     Common, $.01 par value, 13,767,829 issued            0.1           0.1
     Class F Common, $.01 par value,
        6,101,010 issued                                  0.1           0.1
     Paid in capital                                    209.0         209.0
     Retained deficit                                  (207.0)       (177.5)
                                                   ------------  -----------
        Total common stockholders' equity                 2.2          31.7
                                                   ------------  -----------
                                                   $  1,447.1    $  1,474.9
                                                   ============  =========== 


        The accompanying notes are an integral part of these statements.
 
 3

                        CLARK USA, INC. AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                             (dollars in millions)


                                                   For the three months
                                                      ended March 31,
                                                ----------------------------
                                    Reference                   
                                      Note           1998          1999
                                   -----------  -------------  -------------
                                                            
                                                 (unaudited)     (unaudited)

NET SALES AND OPERATING REVENUES                  $  590.1        $   803.2

EXPENSES:
   Cost of sales                                    (497.5)          (725.6)
   Operating expenses                                (77.6)           (97.1)
   General and administrative expenses               (12.0)           (13.2)
   Depreciation                                       (6.4)            (8.8)
   Amortization                         4             (5.9)            (5.1)
   Inventory recovery (write-down)
      to market                         3            (22.7)            96.2
                                                -------------  -------------
                                                    (622.1)          (753.6)
                                                -------------  -------------
OPERATING INCOME (LOSS)                              (32.0)            49.6

   Interest expense and finance
      costs, net                       4,5           (16.0)           (21.1)
                                                -------------  -------------
INCOME (LOSS) FROM CONTINUING 
   OPERATIONS BEFORE INCOME TAXES                    (48.0)            28.5

   Income tax (provision) benefit        6            (0.3)             1.1
                                                -------------  -------------
EARNINGS (LOSS) FROM CONTINUING OPERATIONS           (48.3)            29.6

   Discontinued operations, net of
     income taxes of $1.1 (1998 - $0.2
     benefit                             7            (0.4)             1.9
                                                -------------  -------------
NET EARNINGS (LOSS)                              $   (48.7)     $      31.5

   Preferred stock dividends                          (1.8)            (2.0)
                                                -------------  -------------
NET EARNINGS (LOSS) AVAILABLE TO
   COMMON STOCK                                  $   (50.5)     $      29.5
                                                =============  =============



        The accompanying notes are an integral part of these statements.

 4
                        CLARK USA, INC. AND SUBSIDIARIES
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                              (dollars in millions)


                                                   For the three months
                                                      ended March 31,
                                                ----------------------------
                                                    1998           1999
                                                -------------  -------------
                                                              
                                                 (unaudited)     (unaudited)

CASH FLOWS FROM OPERATING ACTIVITIES:
   Net earnings (loss)                             $  (48.7)       $   31.5
   Discontinued operations                              0.4            (1.9)

   Adjustments:
      Depreciation                                      6.4             8.8
      Amortization                                      6.6             6.6
      Inventory (recovery) write-down to market        22.7           (96.2)
      Other                                            (4.4)           (1.1)

   Cash provided by (reinvested in) working capital -
      Accounts receivable, prepaid expenses and other  13.6           (10.4)
      Inventories                                     (44.5)           86.6
      Accounts payable, accrued expenses, taxes
        other than income and other                   (47.7)           (3.3)
                                                -------------  -------------
           Net cash provided by (used in)
              operating activities                    (95.6)           20.6
                                                -------------  -------------
CASH FLOWS FROM INVESTING ACTIVITIES:
   Purchases of short-term investments                   --            (3.2)
   Sales and maturities of short-term investments        --             2.9
   Expenditures for property, plant and equipment      (5.9)          (40.7)
   Expenditures for turnaround                         (3.5)          (24.3)
   Discontinued operations                             10.1             1.6
                                                -------------  -------------
       Net cash provided by (used in)
          investing activities                          0.7           (63.7)
                                                -------------  -------------
CASH FLOWS FROM FINANCING ACTIVITIES:
   Long-term debt payments                             (7.7)           (0.8)
                                                -------------  -------------
      Net cash used in financing activities            (7.7)           (0.8)
                                                -------------  -------------
NET DECREASE IN CASH AND CASH EQUIVALENTS            (102.6)          (43.9)
CASH AND CASH EQUIVALENTS, beginning of period        234.3           148.2
                                                -------------  -------------
CASH AND CASH EQUIVALENTS, end of period          $   131.7      $    104.3
                                                =============  =============


        The accompanying notes are an integral part of these statements.

 
 5

FORM 10-Q - PART I
ITEM 1 Financial Statements (continued)

Clark USA, Inc. and Subsidiaries

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
March 31, 1999
(tabular dollar amounts in millions of US dollars)

1.	Basis of Preparation 

	The consolidated interim financial statements of Clark USA, Inc. and 
Subsidiaries (the "Company") have been reviewed by independent 
accountants.  In the opinion of the management of the Company, all 
adjustments (consisting only of normal recurring adjustments) necessary 
for a fair presentation of the financial statements have been included 
therein.  The financial statements are presented in accordance with the 
disclosure requirements for Form 10-Q.  These unaudited financial 
statements should be read in conjunction with the audited financial 
statements and notes thereto included in the Company's 1998 Annual 
Report on Form 10-K.

	In May 1999, all of the shares of Clark USA, Inc. were exchanged for 
equivalent shares of Clark Refining Holdings, Inc. which 
was newly formed to serve as a holding company.

	The Company has made certain reclassifications to the prior period to 
conform to current period presentation.

2.	Accounting Changes

	In June 1998, SFAS No. 133, "Accounting for Derivative Instruments 
and Hedging Activities" was issued. This statement establishes 
accounting and reporting standards for derivative instruments, including 
certain derivative instruments embedded in other contracts, and for 
hedging activities.  The Company is required to adopt this statement 
effective January 1, 2000.  SFAS No. 133 will require the Company to 
record all derivatives on the balance sheet at fair value.  Changes in 
derivative fair value will either be recognized in earnings as offsets 
to the changes in fair value of related hedged assets, liabilities, and 
firm commitments or, for forecasted transactions, deferred and recorded 
as a component of comprehensive income until the hedged transactions 
occur and are recognized in earnings.  The ineffective portion of a 
hedging derivative's change in fair value will be recognized in earnings 
immediately.  The Company is currently evaluating when it will adopt 
this standard and the impact of the standard on the Company.  The impact 
of SFAS No. 133 will depend on a variety of factors, including future 
interpretive guidance, the future level of hedging activity, the types 
of hedging instruments used, and the effectiveness of such instruments.

3.	Inventories

	The carrying value of inventories consisted of the following:
        

                                                December 31,      March 31,
                                                    1998             1999
                                                -------------   ------------
                                                               

        Crude oil                                 $  165.3       $   89.7
        Refined and blendstocks                      186.4          176.1
        LIFO inventory value excess over market     (105.8)          (9.6)
        Warehouse stock and other                     21.8           21.1
                                                -------------   ------------
                                                  $  267.7        $ 277.3
                                                =============   ============


 6


4.	Other Assets

	Amortization of deferred financing costs for the three-month period 
ended March 31, 1999 was $1.4 million (1998- $0.7 million) and was 
included in "Interest and finance costs, net."

	Amortization of refinery maintenance turnaround costs for the three-
month period ended March 31, 1999 was $5.1 million (1998- $5.9 million).


5.	Interest and Finance Costs, net

	Interest and finance costs, net, consisted of the following:
        
                
                                                    For the three months
                                                       ended March 31,
                                                  -----------------------
                                                    1998          1999
                                                  ---------   -----------
                                                             

        Interest expense                           $  18.4     $   23.3
        Financing costs                                0.6          1.5
        Interest and finance income                   (2.6)        (1.7)
                                                  ---------   -----------
                                                      16.4         23.1
        Capitalized interest                          (0.4)        (2.0)
                                                  ---------   -----------
          Interest and finance costs, net          $  16.0     $   21.1 
                                                  =========   ===========
        

	Cash paid for interest expense for the three-month period ended March
31, 1999 was $19.0 million (1998- $11.9 million).  Accrued interest 
payable as of March 31, 1999 of $19.2 million (December 31, 1998- $14.9 
million) was included in "Accrued expenses and other."

6.	Income Taxes 

        The Company made no net cash income tax payments during the first 
quarter of 1999 (1998 - net cash income tax refunds of $5.0 million).  
The income tax provision (benefit) related to Discontinued Operations 
for the three-month period ended March 31, 1999 was $1.1 million (1998 -
$(0.2) million).  The income tax provision (benefit) for Continuing 
Operations for the same periods was $(1.1) million and $0.3 million, 
respectively, which reflects the intraperiod utilization of net 
operating losses.

7.	Disposition of Retail Division

	In May, 1999, the Company signed a definitive agreement to sell its 
retail marketing operation in a recapitalization transaction to a 
company controlled by Apollo Management L.P. for cash proceeds of  
approximately $230 million.  An affiliate of the Company's principal 
shareholder will hold a six percent equity interest in the retail 
marketing operation.  As part of the sale agreement, the Company also 
entered into a two-year, market-based supply agreement for refined 
products that will be provided to the retail business through the 
Company's Midwest refining and distribution network.  This network was not 
included in the sale.  The supply agreement may be cancelled with 90 
days notice by the buyer

	The sale of the business is expected to close in the third quarter of 
1999.  The retail marketing operation sold includes all Company-operated retail 
stores, approximately 200 independently-operated, Clark-branded stores 
and the Clark trade name.  Accordingly, the operating results of the 
retail marketing operations, including the provision for income taxes, 
have been segregated from the Company's continuing operations and 
reported as a separate line item as Discontinued Operations in the 
Consolidated Statements of Operations for all periods presented.

 7

	The retail operations' net sales revenue for the three-month period 
ended March 31, 1999 was $202.8 million (1998 - $234.0 million).  The 
components of "Net assets held for sale" included in the Company's 
Consolidated Balance Sheets for March 31, 1999 and December 31, 1998 are 
as follows:


                                                 December 31,    March 31,
                                                    1998           1999 
                                                 ------------   -----------
                                                              
        Current Assets                            $   43.0       $   48.2
        Noncurrent Assets                            187.5          182.2
                                                 ------------   -----------
        Total Assets                                 230.5          230.4
                                                 ------------   -----------
        Current Liabilities                           63.4           62.3
        Noncurrent Liabilities                        26.8           27.5
                                                 ------------   -----------
        Total Liabilities                             90.2           89.8
                                                 ------------   -----------
        Net Assets Held For Sale                  $  140.3       $  140.6
                                                 ============   ===========


8.	Commitments and Contingencies 

        Clark Refining & Marketing, Inc. ("Clark R&M") and the Company are
subject to various legal proceedings related to governmental regulations and
other actions arising out of the normal course of business, including legal
proceedings related to environmental matters.  While it is not possible at
this time to establish the ultimate amount of liability with respect to such 
contingent liabilities, Clark R&M and the Company are of the opinion 
that the aggregate amount of any such liabilities, for which provision 
has not been made, will not have a material adverse effect on their 
financial position, however, an adverse outcome of any one or more of 
these matters could have a material effect on quarterly or annual 
operating results or cash flows when resolved in a future period.

	In March 1998, the Company announced that it had entered into a 
long-term crude oil supply agreement with P.M.I. Comercio 
Internacional, S.A. de C.V. ("PMI"), an affiliate of Petroleos 
Mexicanos, the Mexican state oil company.  The contract provided the 
Company with the foundation necessary to continue developing a project 
to upgrade its Port Arthur, Texas refinery to process primarily lower-
cost, heavy sour crude oil.  The project is expected to cost $600-$700 
million and includes the construction of additional coking and 
hydrocracking capability, and the expansion of crude unit capacity to 
approximately 250,000 barrels per day.  Although the Company and its 
shareholders are currently evaluating alternatives for financing the 
project, it is expected that the financing will be on a non-recourse 
basis to the Company.  The oil supply agreement with PMI and the 
construction work-in-progress are expected to be transferred for value 
to a non-recourse entity that will likely be an affiliate of, but not 
be controlled by, the Company and its subsidiaries.  The Company 
expects to enter into agreements with this affiliate pursuant to which 
the Company would provide certain operating, maintenance and other 
services and would purchase the output from the new coking and 
hydrocracking equipment for further processing into finished products.  
The Company expects to receive compensation under these agreements at 
fair market value that is expected to be favorable to the Company.

	In the event the project financing cannot be completed on a non-
recourse basis to the Company as contemplated, the restrictions in the 
Company's existing debt instruments would likely prohibit the Company 
and its subsidiaries from raising the financing themselves and thus 
completing the project.  Notwithstanding the foregoing, however, the 
Company has begun entering into purchase orders, some of which contain 
cancellation penalties and provisions, for material, equipment and 
services related to this project.  As of March 31, 1999, non-cancelable 
amounts of approximately $65 million had accumulated under these 
purchase orders.  Additional purchase orders and commitments have been 
made and are expected to continue to be made during 1999.  If the 
project were cancelled, the Company would be required to pay a 
termination fee of $200,000 per month to PMI from September 1, 1998 to 
the cancellation date.  In addition, the Company would be subject to 
payment of the non-cancelable commitments and required to record a 
charge to earnings for all expenditures to date.  Although the financing 
is expected to be completed by mid-1999, there can be no assurance that 
the financing for the project will be successful or that the project can 
be completed as contemplated.

 8

ITEM 2 - Management's Discussion and Analysis of Financial Condition and 
Results of Operations

General

	Clark USA, Inc. (the "Company") owns all of the outstanding capital 
stock of Clark Refining & Marketing, Inc. ("Clark R&M").  The Company 
also owns all of the outstanding capital stock of Clark Pipe Line 
Company.  Because Clark R&M is the principal subsidiary of the Company, 
a discussion of the Company's results of operations consists principally 
of a discussion of Clark R&M's results of operations.


Results of Operations
Financial Highlights

        The following table reflects the Company's financial and operating 
highlights for the three month periods ended March 31, 1998 and 1999.  
All amounts listed are dollars in millions, except per barrel 
information.  The table provides supplementary data and is not intended 
to represent an income statement presented in accordance with generally 
accepted accounting principles.

Operating Income:

                                                     For the three months
                                                        ended March 31,
                                                   -----------------------
                                                     1998           1999
                                                   -----------   ----------
                                                               
Port Arthur Refinery
        Crude oil throughput (m bbls/day)             222.2         213.0
        Production (m bbls/day)                       218.9         214.0
        Gross margin ($/barrel of production)       $  3.89       $  2.10
        Gulf Coast 3/2/1 crack spread ($/barrel)       2.50          1.21
        Operating expenses                            (45.4)        (40.2)
        Net margin                                  $  31.3       $   0.2

Midwest Refineries and Other
        Crude oil throughput (m bbls/day)             109.5         242.4
        Production (m bbls/day)                       116.1         261.4
        Gross margin ($/barrel of production)       $  2.74       $  1.22
        Chicago 3/2/1 crack spread ($/barrel)          2.65          1.79
        Operating expenses                            (32.1)        (56.9)
        Clark Pipe Line net margin                      0.6           0.8
        Net margin                                  $  (2.9)      $ (27.4)

General and administrative expenses                   (12.0)        (13.2)
                                                   -----------   ----------
        Operating Contribution                         16.4         (40.4)
Inventory timing adjustment gain (loss) (a)           (13.4)          7.7
Inventory recovery (write-down) to market             (22.7)         96.2
Depreciation and amortization                         (12.3)        (13.9)
                                                   -----------   ----------
        Operating income (loss)                     $ (32.0)      $  49.6
                                                   ===========   ==========


(a)	Includes gains and losses caused by the timing differences between 
        when crude oil is actually purchased and refined products are 
        actually sold, and a daily "market in, market out" operations 
        measurement methodology.

	In the first quarter of 1999, the Company recorded net earnings from 
continuing operations of $29.6 million versus a loss of $48.3 million 
in the same period a year ago.  Net earnings in 1999 benefited from an 
increase in crude oil prices during the quarter as demonstrated by the 
over $4.60 per barrel in WTI crude oil prices along with a larger 
increase in refined product prices.  This increase resulted in 
inventory gains of $103.9 million as compared to inventory losses of 
$36.1 million in 1998.  In 1999, these inventory gains were made up of 
a recovery of previous non-cash inventory writedowns of $96.2 million

 9

(1998 - loss of $22.7 million) and the cash benefit of the price 
increases on the lag between crude oil purchases and product sales of 
$7.7 million (1998 - loss of $13.4 million).

	Net sales and operating revenues increased approximately 36% in the 
first three months of 1999 as compared to the same period of 1998.  This 
increase was due to additional sales volumes principally resulting from 
the acquisition of the Lima refinery in August 1998 that were only 
partially offset in the period by lower average petroleum prices.

	Operating Contribution (earnings before interest, depreciation, 
amortization, inventory-related items and taxes) was a loss of $40.4 
million in the first quarter of 1999, which was below the Operating 
Contribution of $16.4 million in the same period a year ago principally 
due to lower refining margins.  Gulf Coast refining margin indicators 
decreased $1.29 per barrel and Midwest indicators decreased $0.86 per 
barrel in the first quarter of 1999 as the third consecutive warmer-
than-normal winter heating season bloated industry inventories.  In 
addition, discounts for heavy and sour crude oil were compressed 
relative to year-ago levels.  This compression was due to the low 
absolute crude oil prices, reduced Canadian heavy sour crude oil 
production, and OPEC production cuts disproportionately affecting heavy 
crude oil barrels.

	Crude oil throughput and related production in the Company's Midwest 
refineries was higher in the first quarter of 1999 principally because 
of the addition of the Lima refinery in August 1998.  However, the 
increase in production resulting from the Lima refinery was partially 
offset by a reduction in throughput due to the poor refining margins, a 
leak in a major interstate crude oil pipeline supplying the Midwest 
refineries and lower throughput associated with a maintenance 
turnaround at the Lima refinery.  The lower production associated with 
the maintenance turnaround resulted in a lost margin opportunity of 
approximately $5 million for the quarter.  Crude oil throughput and 
production was also reduced at the Port Arthur refinery due to the poor 
first quarter 1999 refining margins.

	Midwest refining operating expenses increased because of the 
addition of the Lima refinery.  Port Arthur operating expenses were 
reduced in the first quarter of 1999 due to lower maintenance and gain 
sharing expenses and the positive impact of lower natural gas prices on 
fuel costs.


Other Financial Highlights

	General and administrative expenses increased in the first quarter of 
1999 over the comparable periods of 1998 principally because of costs 
related to the addition of the Lima refinery and costs associated with 
year 2000 remediation and upgrades.  The Company has expended $3.1 
million from inception of its year 2000 program through March 31, 1999.  
The Company is on target with its year 2000 program that is discussed 
in more detail in the Company's Annual Report on Form 10-K for the year 
ended December 31, 1998.

	Interest and finance costs, net for the three months ended March 31, 
1999 increased over the comparable period in 1998 principally because of 
increased debt associated with the acquisition of the Lima refinery.  
Depreciation and amortization expense also increased in the three months 
ended March 31, 1999 over the comparable period in 1998 principally 
because of the acquisition of the Lima refinery. 


Sale of Retail Division

	In May 1999, the Company signed a definitive agreement to sell its 
retail marketing operation in a recapitalization transaction to a 
company controlled by Apollo Management L.P. for cash proceeds of 
approximately $230 million.  See Exhibit 10.0 Asset Contribution and 
Recapitalization Agreement.  An affiliate of the Company's principal 
shareholder will hold a six percent equity interest in the retail 
marketing operation.  As part of the sale agreement, the Company also 
entered into a two-year market-based supply agreement for refined 
products that will be provided to the retail business through the

 10

Company's Midwest refining and distribution network.  This network was not 
included in the sale.  The supply agreement may be cancelled with 90 
days notice by the buyer.  The retail marketing operation is being sold 
in order to allow the Company to focus its human and financial resources 
on the continued improvement and expansion of its refining business, 
which it believes will generate higher future returns.  

	The retail marketing operations were classified as a discontinued 
operation and the results of operations were excluded from continuing 
operations in the consolidated statements of operations for the periods 
ending March 31, 1998 and 1999.  A gain on the sale is expected to be 
recognized and the transaction is expected to close in the third 
quarter of 1999.  The retail marketing operation sold includes all 
Company-operated retail stores, approximately 200 independently-
operated, Clark-branded stores and the Clark trade name.  


Liquidity and Capital Resources

	Net cash used in operating activities, excluding working capital 
changes, for the three months ended March 31, 1999 was $52.3 million 
compared to cash used of $17.0 million in the year-earlier period.  
Working capital as of March 31, 1999 was $357.7 million, a 2.05-to-1 
current ratio, versus $377.7 million as of December 31, 1998, a 2.10-to-
1 current ratio.  Working capital at December 31, 1998 and March 31, 
1999 included the retail division net assets held for sale.  Total 
working capital decreased in the first quarter of 1999 principally due 
to the cash used in operating activities and significant capital 
expenditures, which were only partially offset by the positive impact of 
increased petroleum prices on inventory.

        In general, the Company's short-term working capital requirements 
fluctuate with the price and payment terms of crude oil and refined 
petroleum products.  Clark R&M has in place a credit agreement (the 
"Credit Agreement") which provides for borrowings and the issuance of 
letters of credit up to the lesser of $700 million, or the amount of a 
borrowing base calculated with respect to Clark R&M's cash, short-term 
investments, eligible receivables and hydrocarbon inventories.  Direct 
borrowings under the Credit Agreement are limited to the principal 
amount of $150 million.  Borrowings under the Credit Agreement are 
secured by a lien on substantially all of the Company's cash and cash 
equivalents, receivables, crude oil and refined product inventories and 
trademarks.  The amount available under the borrowing base associated 
with such facility at March 31, 1999 was $450 million and approximately 
$292 million of the facility was utilized for letters of credit.  As of 
March 31, 1999, there were no direct borrowings under the Credit 
Agreement.  The Credit Agreement expires on December 31, 1999 and the 
Company expects to amend or replace the agreement by the end of 1999.

	Cash flows used in investing activities in the first three months of 
1999 were $63.7 million as compared to $0.7 million in the year-earlier 
period.  Cash flow used in investing activities in 1999 was higher than 
the previous year's first quarter principally due to increased scheduled 
maintenance turnaround expenditures at the Lima and Port Arthur 
refineries ($24.3 million), and increased capital expenditures. 
Expenditures for property, plant and equipment totaled $40.7 million 
(1998 - $5.9 million) in the first three months of 1999 principally 
related to a project to upgrade the Port Arthur refinery to allow it to 
process up to 80% heavy sour crude oil ($33.3 million).

	In March 1998, the Company announced that it had entered into a 
long-term crude oil supply agreement with P.M.I. Comercio 
Internacional, S.A. de C.V. ("PMI"), an affiliate of Petroleos 
Mexicanos, the Mexican state oil company.  The contract provided the 
Company with the foundation necessary to continue developing a project 
to upgrade its Port Arthur, Texas refinery to process primarily lower-
cost, heavy sour crude oil.  The project is expected to cost $600-$700 
million and includes the construction of additional coking and 
hydrocracking capability, and the expansion of crude unit capacity to 
approximately 250,000 barrels per day.  Although the Company and its 
shareholders are currently evaluating alternatives for financing the 
project, it is expected that the financing will be on a non-recourse 
basis to the Company.  The oil supply agreement with PMI and the

 11

construction work-in-progress are expected to be transferred for value 
to a non-recourse entity that will likely be an affiliate of, but not 
be controlled by, the Company and its subsidiaries.  The Company 
expects to enter into agreements with this affiliate pursuant to which 
the Company would provide certain operating, maintenance and other 
services and would purchase the output from the new coking and 
hydrocracking equipment for further processing into finished products.  
The Company expects to receive compensation under these agreements at 
fair market value that is expected to be favorable to the Company.

	In the event the project financing cannot be completed on a non-
recourse basis to the Company as contemplated, the restrictions in the 
Company's existing debt instruments would likely prohibit the Company 
and its subsidiaries from raising the financing themselves and thus 
completing the project.  Notwithstanding the foregoing, however, the 
Company has begun entering into purchase orders, some of which contain 
cancellation penalties and similar provisions, for material, equipment 
and services related to this project.  As of March 31, 1999, non-
cancelable amounts of approximately $65 million had accumulated under 
these purchase orders.  Additional purchase orders and commitments have 
been made and are expected to continue to be made during 1999.  If the 
project were cancelled, the Company would be required to pay a 
termination fee of $200,000 per month to PMI from September 1, 1998 to 
the cancellation date.  In addition, the Company would be subject to 
payment of the non-cancelable commitments and required to record a 
charge to earnings for all expenditures to date.  Although the financing 
is expected to be completed by mid-1999, there can be no assurance that 
the financing for the project will be successful or that the project can 
be completed as contemplated.

	Cash flows used in financing activities for first quarter of 1999 
decreased as compared to the same period in 1998 principally because of 
the partial redemption in 1998 of the Company's Senior Secured Zero 
Coupon Notes, due 2000 ($3.6 million), and the repurchase in 1998 of 
Clark R&M's 9 1/2% Senior Unsecured Notes, due 2004 tendered under its 
required Change of Control offer ($3.3 million).

        Funds generated from operating activities together with the Company's 
existing cash, cash equivalents and short-term investments are expected 
to be adequate to fund requirements for working capital and capital 
expenditure programs for the next year, excluding the Port Arthur heavy 
sour crude oil upgrade project which the Company expects to finance by 
mid-1999.  Future working capital investments, discretionary or non-
discretionary capital expenditures, or acquisitions may require 
additional debt or equity financing.


Forward-Looking Statements

	Certain statements in this document are forward-looking statements 
within the meaning of Section 27A of the Securities Act of 1933 and 
Section 21E of the Securities Exchange Act of 1934.  These statements 
are subject to the safe harbor provisions of this legislation.  Words 
such as "expects," "intends," "plans," "projects," 
"believes," "estimates" and similar expressions typically identify 
such forward-looking statements.  

	Even though the Company believes its expectations regarding future 
events are based on reasonable assumptions, forward-looking statements 
are not guarantees of future performance.  There are many reasons why 
actual results could, and probably will, differ from those contemplated 
in the Company's forward-looking statements.  These include changes in:

*  Industry-wide refining margins
*  Crude oil and other raw material costs, embargoes, industry 
   expenditures for the discovery and production of crude oil, and 
   military conflicts between (or internal instability in) one or more 
   oil-producing countries
*  Market volatility due to world and regional events
*  Availability and cost of debt and equity financing
*  Labor relations

 12

*  U.S. and world economic conditions (including recessionary trends,
   inflation and interest rates) 
*  Supply and demand for refined petroleum products
*  Reliability and efficiency of the Company's operating facilities.  
   There are many hazards common to operating oil refining and 
   distribution facilities (including equipment malfunctions, plant 
   construction/repair delays, explosions, fires, oil spills and the 
   impact of severe weather)
*  Actions taken by competitors (including both pricing and expansion or 
   retirement of refinery capacity)
*  Civil, criminal, regulatory or administrative actions, claims or 
   proceedings (both domestic and international), and regulations 
   dealing with protection of the environment (including refined 
   petroleum product composition and characteristics)
*  Other unpredictable or unknown factors not discussed 

	Because of all of these uncertainties, and others, you should not 
place undue reliance on the Company's forward-looking statements.


PART II - OTHER INFORMATION

ITEM 5 - Other Information

Resignation of Director

	Effective May 4, 1998, Glenn H. Hutchins resigned as a director of 
the Company and Clark R&M.  No replacement was immediately named to 
replace Mr. Hutchins.

Sale of Retail Division

	In May 1999, the Company signed a definitive agreement to sell its 
retail marketing operation in a recapitalization transaction to a 
company controlled by Apollo Management L.P. for cash proceeds of 
approximately $230 million.  See Exhibit 10.0 Asset Contribution and 
Recapitalization Agreement.  An affiliate of the Company's principal 
shareholder will hold a six percent equity interest in the retail 
marketing operation.  As part of the sale agreement, the Company also 
entered into a two-year market-based supply agreement for refined 
products that will be provided to the retail business through the 
Company's Midwest refining and distribution network.  This network was not 
included in the sale.  The supply agreement may be cancelled with 90 
days notice by the buyer.  The retail marketing operation is being sold 
in order to allow the Company to focus its human and financial resources 
on the continued improvement and expansion of its refining business, 
which it believes will generate higher future returns.  

	The retail marketing operations were classified as a discontinued 
operation and the results of operations were excluded from continuing 
operations in the consolidated statements of operations for the periods 
ending March 31, 1998 and 1999.  A gain on the sale is expected to be 
recognized and the transaction is expected to close in the third 
quarter of 1999.  The retail marketing operation sold includes all 
Company-operated retail stores, approximately 200 independently-
operated, Clark-branded stores and the Clark trade name.  


ITEM 6 - Exhibits and Reports on Form 8-K

	(a)	Exhibits

                Exhibit 10.0 - Asset Contribution and Recapitalization 
                               Agreement
		Exhibit 27.0 - Financial Data Schedule

	(b)	Reports on Form 8-K

	None

 13

SIGNATURE

	Pursuant to the requirements of the Securities Exchange Act of 1934, 
the registrant has duly caused this report to be signed on its behalf by 
the undersigned thereunto duly authorized.


                                        CLARK USA, INC.
                                         (Registrant)




 
                                        /s/  Dennis R. Eichholz
                                        -------------------------------
                                        Dennis R. Eichholz
                                        Controller and Treasurer 
                                        (Authorized Officer
                                        and Chief Accounting Officer)



May 14, 1999