FORM 10-Q
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


(Mark One)

   (X)   QUARTERLY  REPORT  PURSUANT  TO SECTION  13 OR 15(d) OF THE  SECURITIES
         EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 1998
                                                             --------------
                                       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 1-8864


                                 USG CORPORATION
- ------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

               Delaware                                    36-3329400
- ------------------------------------------------------------------------------
      (State or other jurisdiction of                   (I.R.S. Employer
       incorporation or organization)                  Identification No.)


 125 South Franklin Street, Chicago, Illinois              60606-4678
- ------------------------------------------------------------------------------
 (Address of principal executive offices)                  (Zip code)


Registrant's telephone number, including area code        (312) 606-4000
                                                    --------------------------

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
   -----   -----

Indicate  by check mark  whether  the  registrant  has filed all  documents  and
reports  required  to be filed by  Section  12,  13, or 15(d) of the  Securities
Exchange Act of 1934 subsequent to the  distribution of securities  under a plan
confirmed by a court. Yes   X    No
                          -----     -----

As of March 31, 1998, 47,395,284 shares of USG common stock were outstanding.


                                    Table of Contents

                                                                                                

                                                                                                     Page
                                                                                                   --------

PART I  FINANCIAL STATEMENTS

Item 1. Financial Statements:

         Consolidated Statement of Earnings:
                  Three Months Ended March 31, 1998 and 1997                                               3

         Consolidated Balance Sheet:
                  As of March 31, 1998 and December 31, 1997                                               4

         Consolidated Statement of Cash Flows:
                  Three Months Ended March 31, 1998 and 1997                                               5

         Notes to Consolidated Financial Statements                                                        6

Item 2. Management's Discussion and Analysis of Results
           of Operations and Financial Condition                                                          10

Report of Independent Public Accountants                                                                  18


PART II  OTHER INFORMATION

Item 1. Legal Proceedings                                                                                 19

Item 6. Exhibits and Reports on Form 8-K                                                                  22


SIGNATURES                                                                                                24


PART I            FINANCIAL INFORMATION
ITEM 1.           FINANCIAL STATEMENTS


                                                      USG CORPORATION
                                           CONSOLIDATED STATEMENT OF EARNINGS
                                      (dollars in millions except per share data)
                                                        (Unaudited)

                                                                                                   Three Months
                                                                                                  Ended March 31,
                                                                                               --------------------
                                                                                             1998             1997
                                                                                          ---------         ---------
                                                                                                  

Net sales                                                                             $        735      $        673

Cost of products sold                                                                          539               496
                                                                                          ---------         ---------
Gross profit                                                                                   196               177

Selling and administrative expenses                                                             72                66

Amortization of excess reorganization value                                                      -                42
                                                                                          ----------        ---------
Operating profit                                                                               124                69

Interest expense                                                                                13                17

Interest income                                                                                 (1)                -

Other expense, net                                                                               2                 -
                                                                                          ----------        ---------
Earnings before income taxes                                                                   110                52

Income taxes                                                                                    43                37
                                                                                          ----------        ---------
Net earnings                                                                                    67                15
                                                                                          ==========        =========

Basic earnings per common share                                                               1.42              0.33

Diluted earnings per common share                                                             1.35               0.32

Dividends paid per common share                                                                  -                 -

Average number of common shares                                                         47,125,604         45,946,213
Average diluted number of common shares                                                 49,717,163         48,216,915

See accompanying Notes to Consolidated Financial Statements.




                                                      USG CORPORATION
                                                CONSOLIDATED BALANCE SHEET
                                                   (dollars in millions)
                                                       (Unaudited)


                                                                                        As of                As of
                                                                                       March 31,          December 31,
                                                                                         1998                 1997
                                                                                    -------------         ------------
                                                                                           
Assets
Current Assets:
Cash and cash equivalents                                                  $              66     $              72
Receivables (net of reserves - $18 and $17)                                              339                   297
Inventories                                                                              217                   208
Current and deferred income taxes                                                         29                    63
                                                                                    -------------         ------------
Total current assets                                                                     651                   640

Property, plant and equipment (net of reserves
    for depreciation and depletion - $249 and $236)                                    1,021                   982
Other assets                                                                             301                   304
                                                                                    -------------         ------------
Total Assets                                                                           1,973                 1,926
                                                                                    =============         ============

Liabilities and Stockholders' Equity
Current Liabilities:
Accounts payable                                                                         163                   146
Accrued expenses                                                                         186                   220
Debt maturing within one year                                                             16                    10
                                                                                    -------------         -------------
Total current liabilities                                                                365                   376

Long-term debt                                                                           597                   610
Deferred income taxes                                                                    161                   163
Other liabilities                                                                        627                   630

Stockholders' Equity:
Preferred stock                                                                            -                     -
Common stock                                                                               5                     5
Capital received in excess of par value                                                  270                   258
Deferred currency translation                                                            (28)                  (25)
Reinvested earnings (deficit)                                                            (24)                  (91)
                                                                                    -------------         -------------
Total stockholders' equity                                                               223                   147
                                                                                    -------------         -------------
Total Liabilities and Stockholders' Equity                                             1,973                 1,926
                                                                                    =============         =============

See accompanying Notes to Consolidated Financial Statements.




                                                      USG CORPORATION
                                          CONSOLIDATED STATEMENT OF CASH FLOWS
                                                  (dollars in millions)
                                                       (Unaudited)



                                                                                                   Three Months
                                                                                                  Ended March 31,
                                                                                               ---------------------
                                                                                             1998              1997
                                                                                           ---------        ---------
                                                                                               

Operating Activities:
Net earnings                                                                        $         67     $          15
Adjustments to reconcile net earnings to net cash:
    Amortization of excess reorganization value                                                -                42
    Depreciation, depletion and other amortization                                            20                17
    Current and deferred income taxes                                                         32                23
(Increase) decrease in working capital:
    Receivables                                                                              (42)              (27)
    Inventories                                                                               (9)               (9)
    Payables                                                                                  17                 7
    Accrued expenses                                                                         (34)              (35)
(Increase) decrease in other assets                                                            3                (7)
Increase (decrease) in other liabilities                                                      (3)               20
Other, net                                                                                    (3)               (4)
                                                                                         ---------         ---------
Net cash from operating activities                                                            48                42
                                                                                         ---------         ---------
Investing Activities:
Capital expenditures                                                                         (58)              (24)
Net proceeds from asset dispositions                                                           1                 -
                                                                                         ---------         ---------
Net cash to investing activities                                                             (57)              (24)
                                                                                         ---------         ---------
Financing Activities:
Issuance of debt                                                                              48                41
Repayment of debt                                                                            (67)              (61)
Short-term borrowings, net                                                                    12                 -
Issuances of common stock                                                                     10                 3
                                                                                         ---------         ---------
Net cash from (to) financing activities                                                        3               (17)
                                                                                         ---------         ---------

Net increase (decrease) in cash & cash equivalents                                            (6)                1

Cash & cash equivalents at beginning of period                                                72                44
                                                                                         ---------         ---------
Cash & cash equivalents at end of period                                                      66                45
                                                                                         =========         =========
Supplemental Cash Flow Disclosures:
Interest paid                                                                                 22                26
Income taxes paid                                                                             10                16

See accompanying Notes to Consolidated Financial Statements.


                                 USG CORPORATION
                   Notes to Consolidated Financial Statements
                                   (Unaudited)


(1)  The   consolidated   financial   statements  of  USG  Corporation  and  its
subsidiaries  ("USG" or the  "Corporation")  included  herein have been prepared
pursuant to the rules and regulations of the Securities and Exchange Commission.
The preparation of financial  statements in conformity  with generally  accepted
accounting principles requires management to make estimates and assumptions that
affect the  reported  amounts of assets,  liabilities,  revenues  and  expenses.
Actual results could differ from those estimates.  In the opinion of management,
the statements reflect all adjustments,  which are of a normal recurring nature,
necessary to present fairly the Corporation's financial position as of March 31,
1998,  and December 31, 1997,  and results of operations  and cash flows for the
three months ended March 31, 1998 and 1997.  Certain amounts in the prior years'
financial   statements   have  been   reclassified  to  conform  with  the  1998
presentation.  While these interim financial  statements and accompanying  notes
are unaudited, they have been reviewed by Arthur Andersen LLP, the Corporation's
independent public accountants.  These financial  statements and notes are to be
read in  conjunction  with the financial  statements  and notes  included in the
Corporation's 1997 Annual Report on Form 10-K dated February 20, 1998.


(2) Basic  earnings  per share were  computed  by dividing  net  earnings by the
weighted  average  number of  common  shares  outstanding  for the  period.  The
dilutive effect of the potential exercise of outstanding options and warrants to
purchase  shares of common stock is calculated  using the treasury stock method.
The  reconciliation of basic earnings per share to diluted earnings per share is
shown in the following table (dollars in millions except share data).



         Three Months Ended                                       Net               Shares              Per Share
         March 31,                                           Earnings                (000)                Amount
         ----------------------------------------------------------------------------------------------------------

                                                                                               
         1998
         Basic earnings                                     $      67               47,126              $   1.42
         Effect of Dilutive Securities:
         Options                                                                       949
         Warrants                                                                    1,642
         ----------------------------------------------------------------------------------------------------------
         Diluted Earnings                                          67               49,717                  1.35
         ==========================================================================================================

         1997
         Basic earnings                                            15               45,946                  0.33
         Effect of Dilutive Securities:
         Options                                                                       870
         Warrants                                                                    1,401
         ----------------------------------------------------------------------------------------------------------
         Diluted Earnings                                          15               48,217                  0.32
         ==========================================================================================================



(3) In the first quarter of 1998, the Corporation adopted Statement of Financial
Accounting   Standards  No.  130,   "Reporting   Comprehensive   Income."  Total
comprehensive   income,   consisting  of  net  earnings  and  foreign   currency
translation  adjustments,  amounted  to $64 million and $6 million for the three
months ended March 31, 1998 and 1997,  respectively.  There was no tax impact on
the foreign currency translation adjustments.


(4) The Corporation uses derivative  instruments to manage well-defined interest
rate, energy cost and foreign currency  exposures.  The Corporation does not use
derivative  instruments for trading purposes.  The criteria used to determine if
hedge accounting  treatment is appropriate are: (i) the designation of the hedge
to an  underlying  exposure  (ii)  whether or not overall  uncertainty  is being
reduced and (iii) if there is a correlation  between the value of the derivative
instrument and the underlying obligation.

Interest Rate Derivative Instruments:
- -------------------------------------
The Corporation  utilizes  interest rate swap agreements to manage the impact of
interest rate changes on its underlying floating-rate debt. These agreements are
designated  as hedges  and  qualify  for hedge  accounting.  Amounts  payable or
receivable under these swap agreements are accrued as an increase or decrease to
interest expense on a current basis. To the extent the underlying  floating-rate
debt is reduced,  the Corporation  terminates swap agreements  accordingly so as
not to be in an overhedged position.  In such cases, the Corporation  recognizes
gains and/or losses in the period the agreement is terminated.

Energy Cost Derivative Instruments:
- -----------------------------------
The Corporation uses swap agreements to hedge  anticipated  purchases of fuel to
be utilized in the  manufacturing  processes  for gypsum  wallboard  and ceiling
tile.  Under these swap agreements,  the Corporation  receives or makes payments
based on the differential between a specified price and the actual closing price
for the current month's energy price contract. These contracts are designated as
hedges and qualify for hedge  accounting.  Amounts  payable or receivable  under
these swap agreements are accrued as an increase or decrease to cost of products
sold,  along with the actual spot energy  cost of the  corresponding  underlying
hedge  transaction,  the  combination  of  which  amounts  to the  predetermined
specified contract price.

Foreign Currency Derivative Instruments:
- ----------------------------------------
The  Corporation  has  operations in a number of countries and has  intercompany
transactions  among  them and,  as a result,  is  exposed  to changes in foreign
currency  exchange rates.  The Corporation  manages most of these exposures on a
consolidated  basis, which allows netting of certain exposures to take advantage
of any natural offsets.  To the extent the net exposures are hedged,  option and
forward  contracts  are used.  The foreign  currency  options  qualify for hedge
accounting,  under which the option  premium is  amortized  over the life of the
option. The forward contracts are marked to market on a current basis with gains
and/or losses included in net earnings in the period in which the exchange rates
change.

(5) Excess  reorganization value, an intangible asset totaling $851 million, was
recorded  in  1993  in  connection  with a  comprehensive  restructuring  of the
Corporation's  debt and the implementation of fresh start accounting as required
by AICPA  Statement  of  Position  90-7,  "Financial  Reporting  by  Entities in
Reorganization under the Bankruptcy Code" ("SOP 90-7").

As  of  September  30,  1997,  the  remaining  $83  million  balance  of  excess
reorganization  value  was  eliminated.  This  balance,  which  would  have been
amortized  through  April  1998,  was offset by the  elimination  of a valuation
allowance  in  accordance  with  SOP  90-7.  See  Note 6  below  for  additional
information.


(6) Income tax  expense  amounted  to $43  million  and $37 million in the three
months ended March 31, 1998 and 1997, respectively. The Corporation's income tax
expense for the first  quarter of 1997 was  computed  based on pre-tax  earnings
excluding the noncash amortization of excess reorganization value, which was not
deductible for income tax purposes.

In the third  quarter of 1997, a valuation  allowance of $90 million,  which had
been  provided for deferred tax assets  relating to pension and retiree  medical
benefits  prior  to the  Corporation's  financial  restructuring  in  1993,  was
eliminated. The elimination of this allowance reflected a change in management's
judgment regarding the realizability of these assets in future years as a result
of the Corporation's  pretax earnings levels and improved capital structure over
the past three years. In accordance with SOP 90-7, the benefit realized from the
elimination  of this  allowance  was  used  to  reduce  the  balance  of  excess
reorganization value to zero as of September 30, 1997.


(7) As of March 31, 1998,  common shares  totaling  2,212,900  were reserved for
future issuance in conjunction  with existing stock option grants.  In addition,
1,150,645 common shares were reserved for future grants.


(8) One of the Corporation's  subsidiaries,  United States Gypsum Company ("U.S.
Gypsum"),  is a defendant in asbestos lawsuits alleging both property damage and
personal  injury.  See Part II,  Item 1.  "Legal  Proceedings"  for  information
concerning the asbestos litigation.

The Corporation and certain of its subsidiaries  have been notified by state and
federal  environmental  protection  agencies of possible  involvement  as one of
numerous "potentially  responsible parties" in a number of so-called "Superfund"
sites in the United States. The Corporation  believes that neither these matters
nor any other known governmental proceeding regarding environmental matters will
have a material  adverse  effect  upon its  earnings or  consolidated  financial
position. See Part II, Item 1. "Legal Proceedings" for additional information on
environmental litigation.

(9) Under a revolving  accounts  receivable  facility,  the trade receivables of
U.S.  Gypsum  and  USG  Interiors,  Inc.  are  being  purchased  by USG  Funding
Corporation  ("USG  Funding") and  transferred to a trust  administered by Chase
Manhattan Bank as trustee. Certificates representing an ownership interest of up
to $130 million in the trust have been issued to an affiliate of Citicorp  North
America, Inc. USG Funding, a special-purpose subsidiary of USG Corporation, is a
separate  corporate entity with its own separate creditors that will be entitled
to be satisfied  out of USG  Funding's  assets prior to any value in USG Funding
becoming  available to its  shareholder.  Receivables  and debt  outstanding  in
connection  with the  receivables  facility  remain in receivables and long-term
debt, respectively, on the Corporation's consolidated balance sheet.



ITEM 2.       MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS AND
              FINANCIAL CONDITION


RESULTS OF OPERATIONS


USG Corporation Consolidated Results

Net Sales - First quarter 1998 net sales  totaled $735  million,  a record level
for any first quarter and a 9% increase  compared with net sales of $673 million
in the first  quarter of 1997.  This increase was  attributable  to record first
quarter  shipments  of all major  product  lines and higher  selling  prices for
SHEETROCK brand gypsum wallboard.


Gross Profit Margin - Gross profit as a percentage of net sales was 26.7% in the
first quarter of 1998, up slightly from 26.3% in the prior-year period.


Selling  and   Administrative   Expenses  -  First   quarter  1998  selling  and
administrative  expenses  of $72  million  increased  9% versus  expenses of $66
million in the first  quarter of 1997.  However,  as a percentage  of net sales,
these  expenses  were  unchanged  at 9.8%.  Expense  dollars were up in the 1998
period due  primarily  to  information  technology  initiatives,  USG's  product
branding  program and  accruals  for USG's  performance-based  restricted  stock
program.


Amortization of Excess Reorganization Value - The noncash amortization of excess
reorganization  value  reduced  operating  profit  by $42  million  in the first
quarter of 1997. As explained in Notes 5 and 6 of this report, the remaining $83
million balance of excess  reorganization value, which would have been amortized
through April 1998, was offset by the elimination of a valuation allowance as of
September 30, 1997.


Interest Expense - As a result of debt reduction during the past year,  interest
expense  in the first  quarter  of 1998 was $13  million,  down 24% from the $17
million incurred in the first quarter of 1997.


Income Tax - Taxes on income  amounted  to $43  million  and $37  million in the
first quarters of 1998 and 1997, respectively. The Corporation's 1997 income tax
expense was computed based on pretax earnings excluding the noncash amortization
of  excess  reorganization  value,  which  was not  deductible  for  income  tax
purposes.


Net Earnings - First  quarter 1998 net earnings  were $67 million,  or $1.35 per
diluted share.  First quarter 1997 net earnings,  which amounted to $15 million,
or $0.32 per  diluted  share,  were net of the  noncash  amortization  of excess
reorganization value of $42 million, or $0.88 per diluted share.


EBITDA - Earnings before interest, taxes, depreciation,  depletion, amortization
and certain other income and expense items  ("EBITDA")  amounted to $142 million
in the first  quarter of 1998,  up 12% compared  with $127 million for the first
quarter of 1997.

As a result of the amortization of excess reorganization value through September
30, 1997,  USG continues to report EBITDA to facilitate  comparisons  of current
and  historical  results.  EBITDA is also  helpful  in  understanding  cash flow
generated from operations that is available for taxes,  debt service and capital
expenditures.  EBITDA should not be considered by investors as an alternative to
net earnings as an indicator of the  Corporation's  operating  performance or to
cash flows as a measure of its overall liquidity.


USG Corporation Core Business Results


(dollars in millions)                                          Net Sales                           EBITDA
- --------------------------------------------------------------------------------------------------------------------
Three Months Ended March 31,                            1998             1997              1998             1997
- --------------------------------------------------------------------------------------------------------------------
                                                                                              


North American Gypsum:
U.S. Gypsum Company                                  $    408          $    375         $    117          $    105
L&W Supply Corporation                                    244               221                6                 6
CGC Inc. (gypsum)                                          37                31                7                 5
Other subsidiaries                                         20                20                6                 5
Eliminations                                             (110)             (100)               -                 -
- --------------------------------------------------------------------------------------------------------------------
Total                                                     599               547              136               121
- --------------------------------------------------------------------------------------------------------------------

Worldwide Ceilings:
USG Interiors, Inc.                                       107                98               14                13
USG International                                          57                55                3                 3
CGC Inc. (ceilings)                                        10                 8                1                 1
Eliminations                                              (14)              (13)               -                 -
- --------------------------------------------------------------------------------------------------------------------
Total                                                     160               148               18                17
- --------------------------------------------------------------------------------------------------------------------

Corporate                                                   -                 -              (12)              (11)
Eliminations                                              (24)              (22)               -                 -
- --------------------------------------------------------------------------------------------------------------------
Total USG Corporation                                     735               673              142               127
====================================================================================================================


North American Gypsum

First  quarter  1998 net  sales  of $599  million  and  EBITDA  of $136  million
increased 10% and 12%, respectively, over first quarter 1997 levels.


United States Gypsum  Company - U.S.  Gypsum's net sales in the first quarter of
1998 were the highest ever for a first  quarter.  Shipments  of SHEETROCK  brand
gypsum  wallboard  totaled 2.137 billion  square feet, the highest level for any
first  quarter and a 4% increase  over first  quarter  1997  shipments  of 2.050
billion square feet. Selling prices on SHEETROCK  wallboard averaged $125.31 per
thousand  square feet,  up 4% from  $120.31 for the first  quarter of last year.
Manufacturing unit costs for SHEETROCK  wallboard were virtually  unchanged from
the prior-year period.  First quarter 1998 capacity utilization at U.S. Gypsum's
wallboard  plants  increased  to  approximately  99% from 97% a year ago.  First
quarter  shipments  of  SHEETROCK  brand joint  compound and DUROCK brand cement
board were the highest for any quarter in the company's history.


L&W Supply  Corporation  - Net sales for USG's  building  products  distribution
business  were a record  for any  first  quarter  and were up 10% over the first
quarter of 1997.  This  performance  reflects a new high for  quarterly  average
selling  prices on wallboard  and record first  quarter  sales of wallboard  and
complementary  building products.  As of March 31, 1998, L&W Supply operated 179
locations  in the United  States  after  adding four  greenfield  locations  and
consolidating two locations into one during the first quarter of 1998.


CGC Inc.  - The  gypsum  business  of CGC  Inc.,  USG's  wholly  owned  Canadian
subsidiary,  reported  increased  sales and EBITDA in the first quarter of 1998.
CGC's  performance   reflects  higher  SHEETROCK  wallboard  volume  and  prices
resulting  from the  improving  Canadian  economy and a continued  high level of
shipments to the eastern United States.



Worldwide Ceilings

First quarter 1998 net sales of $160 million increased 8% over the first quarter
of 1997.  EBITDA was $18 million in the first  quarter of 1998 compared with $17
million in the corresponding 1997 period.

Record first quarter  shipments  were realized for AURATONE  brand ceiling tile,
CONSTELLATION brand ceiling tile and DONN brand ceiling grid. These records were
attributable  to strong demand in the U.S.  nonresidential  construction  market
(both  new  construction  and  renovation)  and  growing  international  demand.
International  results  reflect  sales  records  in Europe  and  Latin  America,
partially offset by a modest decline in Asia.


Construction Market Outlook

Based on leading indicators, such as new housing starts, existing home sales and
nonresidential  construction  activity,  the  outlook for 1998  continues  to be
positive. Key drivers of demand for USG's products, such as consumer confidence,
employment rates and interest rates, all remain at favorable levels.

In the United  States,  we are  currently  forecasting  1998  housing  starts to
approximate  1.450  million  units,  down  slightly from the 1.474 million units
registered in 1997.  Record 1997 sales of existing  homes of more than 4 million
units will support  residential  repair and remodeling in 1998.  This,  combined
with  strong  nonresidential  repair and  remodeling,  will  continue to provide
growth in this market segment.  New  nonresidential  construction in 1997, which
increased by 10% as measured in floor space for which  contracts  were  awarded,
will support  increased  demand for this segment in 1998 as the  finishing of an
interior follows contract awards by about a year or more.

Internationally,  construction  in  Canada  and  Mexico  should  maintain  their
recoveries.  Demand  continues to be strong in Eastern Europe and Latin America,
while  conditions in Western Europe are showing signs of improvement.  Prospects
for the Asian construction market are expected to weaken in 1998; however,  this
market represents a relatively minor share of USG's total sales and earnings.



LIQUIDITY AND CAPITAL RESOURCES

Financial and Growth Strategies

At the time of the 1993 debt restructuring, USG implemented a five-year strategy
designed to improve its financial  flexibility  by reducing debt to a manageable
level and attaining an  investment  grade rating on its capital  structure.  The
goals of this strategy were recently  achieved when the Corporation  reached its
target debt level in October 1997, followed by Standard & Poor's rating increase
to BBB in December 1997 and Moody's rating increase to Baa3 in March 1998.

USG's  current  strategy  focuses on  earnings  growth.  The key drivers of this
strategy are USG's investments in cost-reduction and growth  initiatives,  which
are  supported by the  financial  flexibility  of an  investment  grade  capital
structure.  These initiatives involve replacing high-cost manufacturing capacity
with low-cost  capacity;  adding  efficient new capacity to serve  customers and
thereby  increase  market share;  and expanding  sales  internationally  through
exports and manufacturing  overseas. USG anticipates that these initiatives also
will serve to reduce the impact of cyclicality on its earnings.


Capital Expenditures

Capital  spending  amounted to $58  million in the first  three  months of 1998,
compared  with $24 million in the  corresponding  1997  period.  As of March 31,
1998,  capital  expenditure  commitments for the replacement,  modernization and
expansion of operations  amounted to $468 million  compared with $363 million as
of December 31, 1997.

North American  Gypsum Projects - In April 1998, USG announced plans for a third
major wallboard capacity replacement project, a $112 million plant to be located
in  Aliquippa,  Pa. This new facility  will  provide 700 million  square feet of
SHEETROCK brand gypsum wallboard capacity to replace existing high-cost capacity
in the region, improve service and accommodate  anticipated strong growth in the
Northeast market. The Aliquippa plant will manufacture SHEETROCK wallboard using
100% synthetic  gypsum and is expected to begin operation in early 2000.  Ground
was broken in June 1997 for a new $110 million  plant in  Bridgeport,  Ala. This
facility will also  manufacture  SHEETROCK  brand wallboard using 100% synthetic
gypsum and is expected to begin operation in mid-1999. USG is also investing $90
million to rebuild and modernize its  wallboard  manufacturing  line at the East
Chicago,  Ind.,  plant. This new line is expected to begin production by the end
of 1999.

Construction is underway to build a $90 million  facility to manufacture  gypsum
wood fiber panels at the Gypsum,  Ohio, wallboard plant. The new production line
is expected to begin operating by the end of 1999 and will complement the fourth
quarter 1997  acquisition of a gypsum fiber panel plant in Port Hawksbury,  Nova
Scotia.  USG's gypsum wood fiber  products are marketed under the FIBEROCK brand
name.

Additional capital  investments  include  cost-reduction  projects,  such as the
installation  of stock  cleaning  equipment to utilize  lower grades of recycled
paper and the additional  installation  of processes to  accommodate  the use of
synthetic  gypsum at  manufacturing  facilities where it is more economical than
natural gypsum rock.


Worldwide   Ceilings  Projects  -  A  $35  million  project  that  included  the
replacement of two old production lines with one modern,  high-speed line at the
ceiling tile plant in Cloquet,  Minn.,  was completed  during the first quarter.
The start-up process of the new line is currently under way.


Working Capital

Working capital (current assets less current  liabilities) as of March 31, 1998,
amounted to $286 million, and the ratio of current assets to current liabilities
was 1.8 to 1. As of December 31, 1997, working capital was $264 million, and the
ratio of current assets to current liabilities was 1.7 to 1.

Receivables increased to $339 million as of March 31, 1998, from $297 million as
of December  31,  1997,  while  inventories  increased to $217 million from $208
million and  accounts  payable rose to $163  million  from $146  million.  These
variations reflect normal seasonal fluctuations.

Cash and cash  equivalents as of March 31, 1998,  amounted to $66 million,  down
from $72 million as of December 31, 1997.  This decrease  reflects first quarter
1998 net cash flows from  operating and financing  activities of $48 million and
$3 million,  respectively,  and net cash flows to  investing  activities  of $57
million.


Debt

As of March 31, 1998,  total debt  amounted to $613 million  compared  with $620
million as of  December  31,  1997.  During the first  quarter,  USG retired $67
million of 8.75% senior  debentures,  while increasing the borrowing on its U.S.
and  Canadian  revolving  credit  facilities  by $40  million  and  $8  million,
respectively. Industrial revenue bonds and seasonal foreign borrowings increased
by a total of $12 million.

During the first quarter, USG issued $44 million of 5.65% fixed-rate  industrial
revenue bonds due 2033 to investors, the proceeds of which were deposited into a
construction  escrow  account.   These  bonds,  together  with  $45  million  of
variable-rate  industrial  revenue bonds issued last year in a related offering,
will be used to finance the Gypsum,  Ohio, gypsum wood fiber project.  This debt
is being  recorded  incrementally  on USG's  books as funds are  drawn  from the
escrow accounts throughout the construction process.


Available Liquidity

The Corporation has additional  liquidity  available  through several  financing
arrangements.  Revolving  credit  facilities  in the United  States,  Canada and
Europe  allow  the  Corporation  to borrow up to an  aggregate  of $611  million
(including a $125 million letter of credit  subfacility  in the United  States),
under which,  as of March 31, 1998,  outstanding  revolving  loans  totaled $150
million and letters of credit  issued and  outstanding  amounted to $80 million,
leaving the Corporation  with $381 million of unused and available  credit.  The
Corporation  had  additional  borrowing  capacity of $50 million as of March 31,
1998,  under a revolving  accounts  receivable  facility.  (See Note 9.) A shelf
registration  statement filed with the Securities and Exchange Commission allows
the Corporation to offer from time to time debt securities,  shares of preferred
and common stock or warrants to purchase  shares of common stock,  all having an
aggregate  initial offering price not to exceed $300 million.  As of the date of
this report, no securities had been issued pursuant to this registration.

On May 6, 1993, in connection with its debt restructuring,  USG issued 2,602,566
warrants.  Each warrant  entitles the holder to purchase one share of USG common
stock at a price of $16.14  any time  prior to May 6,  1998.  Through  March 31,
1998,  348,191  warrants had been exercised,  generating cash proceeds to USG of
approximately  $6  million.  Assuming  exercise  of  all  remaining  outstanding
warrants by the termination date,  additional cash proceeds to USG in the second
quarter  of 1998 would be  approximately  $36  million.  The  proceeds  from the
exercises will be added to the cash resources of the  Corporation to be used for
general corporate purposes.


Stockholder Rights Plan

On March 27, 1998,  the  Corporation  approved the  redemption  of the preferred
share purchase rights declared under a 10-year rights  agreement  adopted in May
1993 and adopted a new share purchase rights plan that is designed to strengthen
the  previous   provisions  assuring  the  fair  and  equal  treatment  for  all
stockholders in the event of any unsolicited attempt to acquire the Corporation.
The new rights plan,  which became  effective on April 15, 1998, and will expire
on March 27, 2008, has four basic provisions.  First, if an acquiror buys 15% or
more of USG's  outstanding  common stock, the plan allows other  stockholders to
buy, with each right, additional USG shares at a 50% discount. Second, if USG is
acquired in a merger or other business combination  transaction,  rights holders
will be  entitled  to buy shares of the  acquiring  company  at a 50%  discount.
Third,  if an  acquiror  buys  between 15% and 50% of USG's  outstanding  common
stock,  the company can exchange  part or all of the rights of the other holders
for shares of the company's  stock on a one-for-one  basis, or shares of the new
junior  preferred  stock on a  one-for-one-hundredth  basis.  Fourth,  before an
acquiror  buys 15% or more of USG's  outstanding  common  stock,  the rights are
redeemable for one cent per right at the option of the board of directors.  This
provision  permits the board to enter into an  acquisition  transaction  that is
determined to be in the best interests of stockholders.  The board is authorized
to reduce the 15% threshold to not less than 10%.


Legal Contingencies

One of the Corporation's subsidiaries, U.S. Gypsum, is a defendant in asbestos
lawsuits alleging both property damage and personal injury.  See Part II, Item
1. "Legal Proceedings" for information concerning the asbestos litigation.

The Corporation and certain of its subsidiaries  have been notified by state and
federal  environmental  protection  agencies of possible  involvement  as one of
numerous "potentially  responsible parties" in a number of so-called "Superfund"
sites in the United States. The Corporation  believes that neither these matters
nor any other known governmental proceeding regarding environmental matters will
have a material  adverse  effect  upon its  earnings or  consolidated  financial
position. See Part II, Item 1. "Legal Proceedings" for additional information on
environmental litigation.


Year 2000

In 1997,  USG  developed a plan to modify its  computer-based  systems  that are
affected  by  the  year  2000  date  change.   Anticipated   spending  for  this
modification  is not  expected  to have a material  impact on the  Corporation's
ongoing  results of operations.  The  Corporation  intends to implement its year
2000 compliance plan within the next 12 months to allow  sufficient time to test
its systems thoroughly before January 1, 2000.


Forward-Looking Statements

This  report  contains   forward-looking   statements  related  to  management's
expectations  about future  conditions.  Actual business or other conditions may
differ  significantly from management's  expectations and accordingly affect the
Corporation's  sales and  profitability  or other  results.  Actual  results may
differ  due to factors  over which the  Corporation  has no  control,  including
economic  activity,  such  as new  housing  construction,  interest  rates,  and
consumer confidence; competitive activity such as price and product competition;
increases  in raw  material  and energy  costs;  and the  outcome  of  contested
litigation.  The Corporation assumes no obligation to update any forward-looking
information contained in this report.


                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Board of Directors of USG Corporation:

We have reviewed the accompanying  condensed  consolidated  balance sheet of USG
CORPORATION (a Delaware  corporation) AND SUBSIDIARIES as of March 31, 1998, and
the related  condensed  consolidated  statement of earnings for the  three-month
periods ended March 31, 1998 and 1997 and the condensed  consolidated  statement
of cash  flows for the  three  months  ended  March  31,  1998 and  1997.  These
financial statements are the responsibility of the Corporation'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 the  financial  statements  referred  to  above  for  them to be in
conformity with generally accepted accounting principles.



                                                  /s/ ARTHUR ANDERSEN LLP
                                                  -----------------------
                                                  ARTHUR ANDERSEN LLP

Chicago, Illinois
April 22, 1998


PART II.        OTHER INFORMATION
ITEM 1.         LEGAL PROCEEDINGS


Asbestos and Related Insurance Litigation

One of the Corporation's subsidiaries,  U.S. Gypsum, is among many defendants in
lawsuits  arising  out  of  the  manufacture  and  sale  of  asbestos-containing
materials.  U.S. Gypsum sold certain  asbestos-containing  products beginning in
the 1930s; in most cases, the products were discontinued or asbestos was removed
from the formula by 1972,  and no  asbestos-containing  products  were  produced
after 1977.  Some of these  lawsuits  seek to recover  compensatory  and in many
cases punitive  damages for costs associated with the maintenance or removal and
replacement of  asbestos-containing  products in buildings (the "Property Damage
Cases").  Others  seek  compensatory  and in many  cases  punitive  damages  for
personal  injury  allegedly  resulting  from  exposure  to   asbestos-containing
products (the  "Personal  Injury  Cases").  It is  anticipated  that  additional
asbestos-related suits will be filed.

Summary  - The  following  is a brief  summary;  see  Note  16 to the  financial
statements in the Corporation's 1997 Annual Report for additional information on
the asbestos litigation.

U.S.  Gypsum is a defendant in 16 Property  Damage Cases,  many of which involve
multiple buildings.  One of the cases is a conditionally  certified class action
comprised  of  all  colleges  and  universities  in  the  United  States,  which
certification  is  presently  limited to the  resolution  of  certain  allegedly
"common"  liability  issues.  (Central  Wesleyan College v. W.R. Grace & Co., et
al.,  U.S.D.C.S.C.).  Another class action,  brought on behalf of various public
entities  in the state of Texas,  was  settled in August  1997.  The  settlement
amount will be paid over 12 months and will be  partially  funded by  insurance.
Fifteen  additional  property  damage claims have been  threatened  against U.S.
Gypsum.  During the years  1995-1997,  6 new  Property  Damage  Cases were filed
against U.S.  Gypsum while 32 were closed;  the Company  spent an average of $25
million per year on the defense and  settlement of Property  Damage  Cases,  but
received a total of $148  million  over the  three-year  period  from  insurance
carriers, including reimbursement for expenditures in prior years.

U.S. Gypsum's estimated cost of resolving pending Property Damage Cases is
discussed below. (See "Estimated Cost.")

U.S.   Gypsum  is  also  a  defendant  in  Personal   Injury  Cases  brought  by
approximately 85,000 claimants, as well as an additional 13,000 claims that have
been settled but will be closed over time.  Filings of new Personal Injury Cases
totaled  23,500 claims in 1997,  compared to 28,000 claims in 1996 and 14,000 in
1995.  Filings of Personal Injury Cases have increased as a result of rulings by
a Federal  appellate court and the U.S.  Supreme Court rejecting the Georgine v.
Amchem class  action  settlement,  in which U.S.  Gypsum had  participated  as a
member of the Center for Claims  Resolution,  referred to below.  U.S.  Gypsum's
average  cost to resolve  Personal  Injury Cases during the past three years has
been approximately  $1,600 per claim. Over that period,  U.S. Gypsum expended an
average of $30 million per year on Personal Injury Cases, of which an average of
$26 million was paid by insurance.

U.S.  Gypsum is a member,  together with 19 other former  producers of asbestos-
containing products,  of the Center for Claims Resolution (the "Center"),  which
has assumed the  handling of all  Personal  Injury  Cases  pending  against U.S.
Gypsum and the other members of the Center.  Costs of defense and settlement are
shared  among the  members  of the  Center  pursuant  to  predetermined  sharing
formulae.  Virtually all of U.S.  Gypsum's personal injury liability and defense
costs  are  paid by those  of its  insurance  carriers  that in 1985  signed  an
Agreement  Concerning  Asbestos-Related  Claims  (the  "Wellington  Agreement"),
obligating them to provide coverage for the defense and indemnity costs incurred
by U.S.  Gypsum in  Personal  Injury  Cases.  Punitive  damages  have never been
awarded  against U.S.  Gypsum in a Personal  Injury Case;  whether such an award
would be covered by insurance  under the  Wellington  Agreement  would depend on
state law and the terms of the individual policies.

U.S. Gypsum's estimated cost of resolving pending Property Damage Cases is
discussed below. (See "Estimated Cost.")

U.S. Gypsum sued its insurance  carriers in 1983 to obtain coverage for asbestos
cases (the  "Coverage  Action") and has settled all  disputes  with 12 of its 17
solvent carriers.  As of December 31, 1997, after deducting  insolvent  coverage
and  insurance  paid  out to  date,  approximately  $325  million  of  potential
insurance remained,  including approximately $140 million of insurance from five
carriers that have agreed,  subject to certain  limitations and  conditions,  to
cover both  property  damage and personal  injury  costs;  $140 million from two
carriers that have agreed,  subject to certain  limitations and  conditions,  to
cover personal injury but not yet property damage; and approximately $45 million
from three  carriers  that have not yet agreed to cover either.  U.S.  Gypsum is
attempting  to  negotiate  a  resolution  of the  Coverage  Action with the five
remaining defendant carriers,  but may be required to litigate additional issues
in its effort to secure the contested coverage.

Aggregate  insurance  payments exceeded U.S. Gypsum's total expenditures for all
asbestos-related matters,  including property damage, personal injury, insurance
coverage litigation and related expenses,  by $2.3 million for 1997, $41 million
in 1996 and $10 million in 1995, due primarily to nonrecurring reimbursement for
amounts expended in prior years.

Estimated Cost - The asbestos  litigation  involves numerous  uncertainties that
affect U.S. Gypsum's ability to estimate reliably its probable  liability in the
Personal Injury and Property  Damage Cases.  In the Property Damage Cases,  such
uncertainties  include  the  identification  and  volume of  asbestos-containing
products in the buildings at issue in each case,  which is often  disputed;  the
claimed damages associated  therewith;  the viability of statute of limitations,
product identification and other defenses, which varies depending upon the facts
and  jurisdiction of each case; the amount for which such cases can be resolved,
which has normally (but not uniformly) been substantially lower than the claimed
damages;  and the  viability  of claims for punitive and other forms of multiple
damages.  Uncertainties  in  the  Personal  Injury  Cases  include  the  number,
characteristics  and venue of Personal  Injury Cases that are filed against U.S.
Gypsum; the Center's ability to continue to negotiate  pre-trial  settlements at
historical or acceptable levels; the level of physical  impairment of claimants;
the  viability  of claims for  punitive  damages;  and the  Center's  ability to
develop an  alternate  claims-handling  vehicle that retains the key benefits of
the Georgine  settlement.  As a result, any estimate of U.S. Gypsum's liability,
while  based  upon  the  best  information  currently  available,  may not be an
accurate  prediction  of actual  costs and is subject to revision as  additional
information becomes available and developments occur.

Pending  Cases:  Subject  to the  above  uncertainties,  and  based  in  part on
information  provided by the Center,  U.S. Gypsum  estimates that it is probable
that Property Damage and Personal Injury Cases pending on December 31, 1997, can
be resolved  for an amount  totaling  between  $200  million  and $265  million,
including defense costs. These amounts are expected to be expended over the next
three to five years. Significant insurance funding is available for these costs,
as detailed below.

Future Cases: U.S. Gypsum is unable to reasonably estimate the cost of resolving
Property  Damage  Cases  and  Personal  Injury  Cases  that will be filed in the
future. The Company  anticipates that few additional  Property Damage Cases will
be filed, as a result of the operation of statutes of limitations and the impact
of certain other factors,  although it is possible that any cases that are filed
may seek substantial  damages. It is anticipated that Personal Injury Cases will
continue to be filed in substantial numbers for the foreseeable future, although
the  percentage  of such cases  filed by  claimants  with  little or no physical
impairment  is expected to remain  high.  However,  the Company does not believe
that the number and severity of future cases can be  predicted  with  sufficient
accuracy to provide the basis for a reasonable  estimate of the  liability  that
will be associated with such cases.

Accounting  for Asbestos  Liability:  As of December 31, 1997,  U.S.  Gypsum had
reserved $200 million for liability  from pending  Property  Damage and Personal
Injury Cases  (equaling the lower end of the estimated  range of costs  provided
above).  U.S. Gypsum had a corresponding  receivable from insurance  carriers of
approximately $160 million, the estimated portion of the reserved amount that is
expected to be paid or reimbursed by committed insurance. Additional amounts may
be  reimbursed  by  insurance  depending  upon the  outcome  of  litigation  and
negotiations relating to insurance that is presently disputed.

U.S.  Gypsum had an additional  reserve of $110 million as of December 31, 1997,
that  was  available  for  future  asbestos   liabilities  and  asbestos-related
expenses.  The Company  continues  to accrue $18  million per year for  asbestos
costs and will periodically  compare its estimates of liability to then-existing
reserves and available  insurance assets and adjust its reserves as appropriate.
It is possible  that U.S.  Gypsum will  determine in the future that  additional
charges to results of operations  are  necessary,  although  whether  additional
charges  will be  required  and,  if so, the timing and amount of such  charges,
cannot presently be predicted.

Conclusion - The above  estimates and reserves will be reevaluated  periodically
as additional  information  becomes  available.  It is possible that  additional
charges to earnings  may be  necessary  in the future if the  amounts  reflected
above prove  insufficient  in light of future  events,  and that any such charge
could be material to results of  operations  in the period in which it is taken.
However,  it is  management's  opinion,  taking  into  account  all of the above
information  and  uncertainties,   including  currently  available   information
concerning U.S. Gypsum's liabilities, reserves, and probable insurance coverage,
that the  asbestos  litigation  will not have a material  adverse  effect on the
liquidity or consolidated financial position of the Corporation.


Environmental Litigation

The Corporation and certain of its subsidiaries  have been notified by state and
federal  environmental  protection  agencies of possible  involvement  as one of
numerous "potentially  responsible parties" in a number of so-called "Superfund"
sites in the United  States.  In most of these  sites,  the  involvement  of the
Corporation  or its  subsidiaries  is expected to be  minimal.  The  Corporation
believes  that  appropriate  reserves  have been  established  for its potential
liability in connection with all Superfund sites but is continuing to review its
accruals as additional  information  becomes available.  Such reserves take into
account all known or estimated costs associated with these sites, including site
investigations and feasibility costs, site cleanup and remediation, legal costs,
and fines and penalties, if any. In addition, environmental costs connected with
site cleanups on USG-owned property are also covered by reserves  established in
accordance  with the  foregoing.  The  Corporation  believes  that neither these
matters  nor any other known  governmental  proceeding  regarding  environmental
matters will have a material  adverse  effect upon its earnings or  consolidated
financial position.


Item 6.         Exhibits and Reports on Form 8-K

           
(a)     (3)      Articles of Incorporation and By-Laws:

                   (i)     Certificate of Designations  of Junior  Participating
                           Preferred   Stock,   Series  D,  of  USG  Corporation
                           (incorporated  by reference to Exhibit A of Exhibit 4
                           to USG Corporation's Form 8-K dated March 27, 1998).

                  (ii)     Amended  and  Restated  By-Laws  of USG  Corporation,
                           dated as of March 27, 1998.

         (4)      Rights   Agreement,   dated  March  27,   1998,   between  USG
                  Corporation and Harris Trust and Savings Bank, as Rights Agent
                  (incorporated  by reference to Exhibit 4 to USG  Corporation's
                  Form 8-K dated March 27, 1998).

         (15)     Letter of Arthur  Andersen LLP regarding  unaudited  financial
                  information.

         (27)     Financial Data Schedule.

(b)      A report  on Form 8-K was  filed on March  27,  1998,  relating  to the
         Rights  Agreement,  dated March 27,1998,  between USG  Corporation  and
         Harris Trust and Savings Bank, as Rights Agent.




                                   SIGNATURES



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.



                                 USG CORPORATION



                                 By  /s/ Dean H. Goossen
                                 -----------------------------------
                                 Dean H. Goossen, Corporate Secretary,
                                 USG Corporation


                                  By  /s/ Raymond T. Belz
May 1, 1998                       -----------------------------------
                                  Raymond T. Belz, Vice President and
                                  Controller, USG Corporation