SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                          ----------------------------

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


  Date of Report (Date of earliest event reported): April 22, 2004
                                                       (April 21, 2004)

                                 Arch Coal, Inc.
             (Exact name of registrant as specified in its charter)

   Delaware                           1-13105               43-0921172
---------------------        -----------------------        ----------
(State or other jurisdiction (Commission File Number)      (I.R.S. Employer
    of incorporation)                                      Identification No.)


            One CityPlace Drive, Suite 300, St. Louis, Missouri 63141
               (Address of principal executive offices) (Zip code)


       Registrant's telephone number, including area code: (314) 994-2700











                               Page 1 of 5 pages.
                         Exhibit Index begins on page 5.





Item 7 Financial Statements, ProForma Financial Information and Exhibits.

         See the Exhibit Index at page 5 of this Report.

Item 9.  Regulation FD Disclosure.

Item 12.  Disclosure of Results of Operations and Financial Condition.

The information in this Report is being  furnished under Item 9,  "Regulation FD
Disclosure"  and Item 12,  "Disclosure  of Results of  Operations  and Financial
Condition."

     On April 21, 2004,  Arch Coal,  Inc. (the  "Company"),  announced via press
release its earnings and operating results for the first quarter of 2004. A copy
of the Company's  press release is attached  hereto and  incorporated  herein by
reference in its entirety.

     The Company is also  providing  the  following  reconciliation  of Adjusted
EBITDA for its Arch Western Resources, LLC subsidiary:





      Arch Western Resources, LLC
                                                                       Three Months Ended
      Reconciliation of net income to adjusted EBITDA                        March 31
                                                                ------------------------------------
                                                                      2004            2003
                                                                ---------------- -------------------
                                                                        (Amounts in 000's)
                                                                           

           Net income (loss)                                     $      922      $ (10,167)
           Cumulative effect of accounting change                         -         18,278
           Interest expense, net                                      9,198          6,578
           Depreciation, depletion and amortization - Arch
             Western Resources                                       16,636         14,865
           DD&A - Equity interest in Canyon Fuel Company, LLC         4,390          5,493
           Other nonoperating expense                                 3,388              -
                                                                ---------------- -------------------

           Adjusted EBITDA                                       $   34,534      $  35,047
                                                                ================ ===================


      Reconciliation of net income to income before other
      nonoperating expense and cumulative effect of accounting
      change


           Net income                                            $     922       $ (10,167)
           Cumulative effect of accounting change                        -          18,278
           Other nonoperating expense                                3,388               -
                                                                ---------------- -------------------

           Income before other nonoperating expense and
            cumulative effect of accounting change               $   4,310       $   8,111
                                                                ================ ===================




                               Page 2 of 5 pages.
                         Exhibit Index begins on page 5



Note:    Adjusted EBITDA is defined as net income before the effect of net
         interest expense; income taxes; our depreciation, depletion and
         amortization; our equity interest in the depreciation, depletion and
         amortization of Canyon Fuel Company, LLC; cumulative effect of
         accounting changes; and expenses resulting from early extinguishment of
         debt; and mark-to market adjustments in the value of derivative
         instruments.


         Adjusted EBITDA is not a measure of financial performance in accordance
         with generally accepted accounting principles, and items excluded to
         calculate Adjusted EBITDA are significant in understanding and
         assessing our financial condition. Therefore, Adjusted EBITDA should
         not be considered in isolation nor as an alternative to net income,
         income from operations, cash flows from operations or as a measure of
         our profitability, liquidity or performance under generally accepted
         accounting principles. We believe that Adjusted EBITDA presents a
         useful measure of our ability to service and incur debt based on
         ongoing operations. Furthermore, analogous measures are used by
         industry analysts to evaluate operating performance. Investors should
         be aware that our presentation of Adjusted EBITDA may not be comparable
         to similarly titled measures used by other companies.


In accordance with General Instruction B.6 of Form 8-K, the information in this
Current Report on Form 8-K, including Exhibit 99, shall not be deemed "filed"
for the purposes of Section 18 of the Securities Exchange Act of 1934, as
amended, or otherwise subject to the liability of that section, nor shall it be
deemed incorporated by reference in any filing under the Securities Act of 1933,
as amended, except as shall be expressly set forth by specific reference in such
a filing.


















                               Page 3 of 5 pages.
                         Exhibit Index begins on page 5





                                   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 hereunto duly authorized.

Dated:  April 22, 2004                   ARCH COAL, INC.



                                         By: /s/ Robert G. Jones
                                            Robert G. Jones
                                            Vice President - Law,
                                            General Counsel and Secretary



























                               Page 4 of 5 pages.
                         Exhibit Index begins on page 5.







                                  EXHIBIT INDEX


Exhibit No.                 Description
-----------                ------------
99                         Press Release dated as of April 22, 2004


































                               Page 5 of 5 pages.






                                                                      Exhibit 99
News from
Arch Coal, Inc.
--------------------------------------------------------------------------------
                                                        FOR FURTHER INFORMATION:

                                                                   Deck S. Slone
                                                                 Vice President,
                                                   Investor and Public Relations
                                                                  (314) 994-2717

                                                           FOR IMMEDIATE RELEASE
                                                                  April 21, 2004

                 Arch Coal, Inc. Reports First Quarter Results

    Earnings per fully diluted share increases to $1.14
    Coal sales revenues increase 23% vs. same period in 2003
    Adjusted EBITDA totals $147.4 million vs. $38.7 million in 1Q03
    Excluding special items, earnings per fully diluted share climbs to $0.14
    Debt to total capitalization ratio improves to 47%
    Cash balance grows to $323.0 million

     St. Louis - Arch Coal, Inc.  (NYSE:ACI)  today announced that it had income
available to common  shareholders  of $68.2 million,  or $1.14 per fully diluted
share,  for its first  quarter  ended March 31, 2004.  Included in the company's
first  quarter  results were certain  gains related to the sale of a significant
portion of the company's  remaining interest in Natural Resource Partners (NRP),
as well as charges  related to severance costs at the  soon-to-be-idled  Skyline
Mine and the termination of hedge accounting for interest rate swaps.

     Excluding these items, Arch had income available to common  shareholders of
$7.7 million,  or $0.14 per fully diluted share,  for the first quarter of 2004.
(See the attached  table for a more  complete  reconciliation.)  During the same
period of 2003,  Arch recorded a net loss  available to common  shareholders  of
$18.0 million,  or $0.34 per fully diluted share,  which included the cumulative
effect  of an  accounting  change  resulting  from  the  adoption  of  FAS  143,
"Accounting for Asset Retirement Obligations."

     "As expected,  higher average realizations in both the east and west led to
improved  margins and stronger  overall  results during the first quarter," said
Steven F. Leer,  Arch  Coal's  president  and chief  executive  officer.  "These
results were supported by a solid overall  performance by our mining  operations
despite challenges related to rail service."

     The March  disposition of most of the company's  remaining stake in Natural
Resource Partners was another highlight of the quarter, according to Leer. "In a
period of just 18  months,  Arch has been able to convert  non-strategic  assets
valued at $85  million  on its  balance  sheet  into  proceeds  of  nearly  $250
million," he said. Arch ended the quarter with a cash balance of $323.0 million.


     The results for the quarter include the effects of implementing  FASB Staff
Position  FAS 106-b  "Accounting  and  Disclosure  Requirements  related  to the
Medicare  Prescription  Drug,  Improvement and  Modernization  Act of 2003" (FAS
106-b) in anticipation of its ratification by the Financial Accounting Standards
Board (FASB) in April 2004.  Implementation of FAS 106-b resulted in a reduction
in Arch's  postretirement  benefit  obligation of $68 million and a reduction in
its anticipated 2004  postretirement  medical expenses of $18.1 million. Of this
amount,  $4.5  million is  reflected  in Arch's  results of  operations  for the
quarter  ended  March 31,  2004.  If the FASB does not ratify the  pronouncement
prior to the  company's  filing of its  quarterly  financial  statements on Form
10-Q, Arch will revise its quarterly  results to exclude its impact.  The impact
of this  implementation  offsets  the  effects  of  changes  to other  actuarial
assumptions incorporated at the beginning of the year.

U.S. coal markets strengthened further during the quarter

     During the  quarter,  U.S.  coal  markets  benefited  from a  strengthening
economy,  declining  utility  stockpiles and continuing  pressure on natural gas
supplies.  Through the first three months of 2004,  U.S. power output  increased
approximately  2.8%  compared to the  comparable  period in 2003,  according  to
Edison Electric Institute,  due in part to increased industrial activity.  Based
on recent trends,  it appears  likely that coal  consumption is increasing at an
even faster pace than electric  generation.  As a result,  Arch  estimates  that
stockpiles  at U.S.  power plants  declined by more than 15% during the quarter,
despite entering January at relatively low levels.  In addition,  the rebound in
global steel demand has boosted requirements for metallurgical coal.

     "We believe the  drivers  are in place for a long and  sustained  period of
growth in U.S. coal demand," Leer said.

     Although Arch entered the year with the vast majority of its expected first
quarter output already  committed and priced,  the company benefited from strong
pricing  on the  small  volume of coal it had  available  for spot  sales.  Arch
directed  some of that  coal  into  metallurgical  markets,  with  metallurgical
shipments increasing by approximately 200,000 tons, or 50%, compared to the same
period of last year. At present,  Arch expects metallurgical sales to exceed 2.5
million tons for 2004, or roughly double the level of last year.

     Arch continues to have unpriced  tonnage for delivery in the second half of
2004,  due in part to  ongoing  efforts  to add  incremental  production  at the
company's eastern operations.  "With a relatively modest investment,  we believe
we can add approximately  500,000 tons of incremental  production at our eastern
mines this year," Leer said. As a result of these  efforts,  Arch has raised its
2004  forecast  for capital  spending  from $160 million to  approximately  $185
million.

     Arch continues to have significant volumes open to market-based  pricing in
2005 and 2006.  At present,  Arch has priced  approximately  65% of its expected
output for 2005, and approximately 50% of its expected output for 2006.






     As for the  remainder  of 2004,  Arch still has  nearly 5% of its  expected
production  yet to be priced  based on expected  levels of  production  and rail
availability.

NRP sale enhances financial condition

     In March,  Arch sold 2.6 million of its 2.9 million common units in Natural
Resource  Partners in a private  transaction for $100 million.  The transaction,
which  resulted in a gain of  approximately  $81.5 million,  nearly  completes a
multi-phased effort to unlock the value of certain non-strategic assets that had
been undervalued on the company's balance sheet.

     "Through  this effort which began with the  formation  of Natural  Resource
Partners in October  2002, we believe we have created  tremendous  value for our
shareholders, while greatly enhancing Arch's financial flexibility," Leer said.

     Arch still holds  approximately  279,000  shares of NRP, which had a market
value of approximately  $10.5 million based on the closing price of NRP on April
20.

     Arch is currently in its strongest  financial  condition  since it acquired
its  western  assets  in July  1998.  Arch's  debt to total  capitalization  has
declined  by 37 points in the past  three  years  and  currently  stands at 47%.
Arch's  net debt to total  capitalization  - which  reflects  the  corporation's
current cash balance of $323.0 million - now stands at just 33%.

     "We are in an excellent position to grow in a marketplace that is likely to
create many  exciting  opportunities  in the years  ahead,"  Leer said.  "We are
particularly  excited about the  potential for internal  growth on our large and
strategic reserve base."

Arch plans to defend Triton acquisition in court

     In early April,  the Federal  Trade  Commission  filed a lawsuit in federal
district court to block Arch's proposed acquisition of Triton Coal Company. Arch
continues  to view the  acquisition  of Triton as  pro-competitive  and plans to
defend the transaction in court.

     "We believe that the FTC  incorrectly  excluded  from its analysis the fact
that  competition in the coal business is intense," Leer said.  "Coal  companies
must work  tirelessly  to  reduce  costs and  improve  productivity  in order to
survive in this challenging marketplace,  which includes hundreds of competitors
in many different coal supply  regions.  Consumers of electricity  are the clear
beneficiaries of this effort to continuously improve."

     The hearing is scheduled to begin on June 21 in U.S.  District  Court.  "We
look forward to presenting the facts in court," Leer said.






Operating statistics

First Quarter 2004 Regional Analysis:



                                             Eastern Operations       Western Operations               Total
                                                                                           

                                            1Q 04        1Q 03        1Q 04         1Q 03        1Q 04       1Q 03
Tons sold (in mm)                             7.5          6.8         18.3          15.9          25.8        22.7
Sales price per ton1                       $33.06       $29.89        $7.80         $7.09        $15.15      $13.94
Operating cost per ton1,2                  $30.25       $29.50        $7.07         $6.68        $13.84      $13.56
Operating margin per ton                   $ 2.81       $ 0.39        $0.73         $0.41        $ 1.31      $ 0.38


Note:  Western  operations  data do not include the results of 65%-owned  Canyon
Fuel Company, which is accounted for on the equity method.

(1) Per ton realizations and costs as detailed above exclude transportation
costs that are billed to customers. Eastern transportation costs totaled $10.4
million in the first quarter of 2004 and $9.0 million in the first quarter of
2003. Western transportation costs totaled $1.5 million in the first quarter of
2004 and $2.4 million in the first quarter of 2003.

(2) Per ton costs detailed above exclude postretirement medical costs totaling
$13.8 million in the first quarter of 2004 and $14.7 million in the first
quarter of 2003.


Capital Spending and DD&A (in millions):

                                          Q1 2004     Q1 2003    FY 2004 (proj.)
Capital spending                           $33.5       $50.8        $185
DD&A                                       $40.5       $45.0        $180

Note:  Data on capital  spending and  depreciation,  depletion and  amortization
include Arch's ownership  percentage in Canyon Fuel Company.  Projected  capital
spending  and  DD&A  do  not  include  Triton  Coal  Company,   other  potential
acquisitions or reserve additions.


Looking ahead

     During 2004,  Arch  expects to benefit  significantly  from higher  average
sales prices in both the east and west,  despite the fact that the vast majority
of  its  expected   output  was   committed  and  priced  prior  to  the  recent
strengthening  in coal markets.  "We believe Arch has great potential for higher
levels  of  profitability  over the  course  of the next  several  years,  as an
increasing  percentage of our contracts expire and is repriced in the prevailing
market environment," Leer said.

     For the second quarter of 2004,  Arch expects  profits of between $0.20 and
$0.30 per fully diluted share,  excluding  charges related to the termination of
hedge  accounting for interest rate swaps.  The company  expects each quarter of
2004 to be stronger  than the last,  due  principally  to the timing of when new
commitments were signed.






     A conference  call concerning  first quarter  earnings will be webcast live
today at 11 a.m. Eastern. The conference call can be accessed via the "investor"
section of the Arch Coal Web site (www.archcoal.com).

     Arch Coal is one of the nation's  largest coal  producers,  with subsidiary
operations in West Virginia,  Kentucky,  Virginia,  Wyoming,  Colorado and Utah.
Through these  operations,  Arch Coal provides the fuel for  approximately 6% of
the electricity generated in the United States.


     Forward-Looking Statements:  Statements in this press release which are not
statements of historical fact are  forward-looking  statements  within the "safe
harbor" provision of the Private Securities Litigation Reform Act of 1995. These
forward-looking  statements are based on information currently available to, and
expectations and assumptions  deemed  reasonable by, the company.  Because these
forward-looking  statements  are  subject  to various  risks and  uncertainties,
actual results may differ  materially  from those  projected in the  statements.
These  expectations,   assumptions  and  uncertainties  include:  the  company's
expectation  of  continued  growth in the demand for  electricity;  belief  that
legislation  and  regulations  relating to the Clean Air Act and the  relatively
higher costs of competing  fuels will  increase  demand for its  compliance  and
low-sulfur  coal;  expectation of continued  improved market  conditions for the
price of coal;  expectation  that the company  will  continue  to have  adequate
liquidity from its cash flow from operations, together with available borrowings
under its credit  facilities,  to finance the company's working capital needs; a
variety of operational, geologic, permitting, labor and weather related factors;
and the other risks and  uncertainties  which are described from time to time in
the company's reports filed with the Securities and Exchange Commission.








                        Arch Coal, Inc. and Subsidiaries
                 Condensed Consolidated Statements of Operations
                      (In thousands, except per share data)



                                                                                      Three Months Ended
                                                                                           March 31
                                                                              -----------------------------------
                                                                                    2004             2003
                                                                              ---------------- ------------------
                                                                                         (Unaudited)
                                                                                         
Revenues
  Coal sales                                                                   $    403,490     $   327,390

Costs and expenses
  Cost of coal sales                                                                383,191         333,639
  Selling, general and administrative expenses                                       15,626          11,873
  Amortization of coal supply agreements                                                610           5,793
  Other expenses                                                                      5,773           4,549
                                                                              ---------------- ------------------
                                                                                    405,200         355,854
                                                                              ---------------- ------------------

Other operating income
  Income from equity investments                                                      3,690          11,110
  Gain on sale of units of Natural Resource Partners, LP                             81,467               -
  Other operating income                                                             23,462          11,089
                                                                              ---------------- ------------------
                                                                                    108,619          22,199
                                                                              ---------------- ------------------


      Income (loss) from operations                                                  106,909         (6,265)

Interest expense, net:
  Interest expense                                                                   (14,741)       (11,552)
  Interest income                                                                        710            332
                                                                              ---------------- ------------------
                                                                                     (14,031)       (11,220)
                                                                              ---------------- ------------------

Other non-operating income (expense):
  Expenses resulting from early debt extinguishment and termination of hedge
     accounting for interest rate swaps                                               (2,066)             -
  Other non-operating income                                                             171              -
                                                                              ---------------- ------------------
                                                                                      (1,895)             -
                                                                              ---------------- ------------------

      Income (loss) before income taxes and cumulative effect of
          accounting change                                                           90,983        (17,485)
Provision (benefit) from income taxes                                                 21,000         (4,300)
                                                                              ---------------- -----------------
      Income (loss) before cumulative effect of accounting change                     69,983        (13,185)
Cumulative effect of accounting change, net of taxes                                       -         (3,654)
                                                                              ---------------- ------------------
      Net income (loss)                                                               69,983        (16,839)
Preferred stock dividends                                                             (1,797)        (1,198)
                                                                              ---------------- ------------------
      Net income (loss) available to common shareholders                       $      68,186   $    (18,037)
                                                                              ================ ==================

Earnings per common share


Basic earnings (loss) before cumulative effect of accounting change            $        1.27   $     (0.27)
Cumulative effect of accounting change                                                     -         (0.07)
                                                                              ---------------- ------------------
Basic earnings (loss) per common share                                         $        1.27   $     (0.34)
                                                                              ================ ==================

Diluted earnings (loss) before cumulative effect of accounting change          $        1.14   $     (0.27)
Cumulative effect of accounting change                                                     -         (0.07)
                                                                              ---------------- ------------------
Diluted earnings (loss) per common share                                       $        1.14   $     (0.34)
                                                                              ================ ==================

Weighted average shares outstanding
  Basic                                                                               53,825        52,384
  Diluted                                                                             61,592        52,384
                                                                              ================ ==================

Dividends declared per common share                                            $      0.0575   $    0.0575
                                                                              ================ ==================

Adjusted EBITDA (A)                                                            $     147,404   $    38,739
                                                                              ================ ==================



(A)  Adjusted  EBITDA is defined as net income before the effect of net interest
     expense;  income taxes; our depreciation,  depletion and amortization;  our
     equity interest in the  depreciation,  depletion and amortization of Canyon
     Fuel  Company,LLC;   cumulative  effect  of  accounting  changes;  expenses
     resulting from early extinguishment of debt; and mark-to-market adjustments
     in the value of derivative instruments.

     Adjusted  EBITDA is not a measure of financial  performance  in  accordance
     with  generally  accepted  accounting  principles,  and items  excluded  to
     calculate  Adjusted EBITDA are significant in  understanding  and assessing
     our  financial  condition.   Therefore,   Adjusted  EBITDA  should  not  be
     considered in isolation nor as an  alternative  to net income,  income from
     operations,   cash   flows  from   operations   or  as  a  measure  of  our
     profitability, liquidity or performance under generally accepted accounting
     principles.  We believe that Adjusted  EBITDA  presents a useful measure of
     our  ability  to  service  and  incur  debt  based on  ongoing  operations.
     Furthermore,  analogous  measures are used by industry analysts to evaluate
     operating  performance.  Investors should be aware that our presentation of
     Adjusted EBITDA may not be comparable to similarly  titled measures used by
     other companies. The table below shows how we calculate Adjusted EBITDA.





                                                                                      Three Months Ended
                                                                                           March 31
                                                                              -----------------------------------
                                                                                    2004             2003
                                                                              ---------------- ------------------
                                                                                         (Unaudited)
                                                                                         

     Net income (loss)                                                         $       69,983   $  (16,839)
     Cumulative effect of accounting change                                                 -        3,654
     Provision (benefit) from income taxes                                             21,000       (4,300)
     Interest expense, net                                                             14,031       11,220
     Depreciation, depletion and amortization - Arch Coal, Inc.                        36,105       39,511
     DD&A - Equity interest in Canyon Fuel Company, LLC                                 4,390        5,493
     Expenses from early debt extinguishment and other nonoperating                     1,895            -
                                                                              ---------------- ------------------

     Adjusted EBITDA                                                           $      147,404   $   38,739
                                                                              ================ ==================










                                    Arch Coal, Inc. and Subsidiaries
                                 Condensed Consolidated Balance Sheets
                                             (In thousands)

                                                                      March 31,         December 31,
                                                                        2004                2003
                                                                 ------------------- --------------------
                                                                     (Unaudited)
                                                                               

Assets
  Current assets
    Cash and cash equivalents                                     $     323,007       $    254,541
    Trade receivables                                                   146,720            118,376
    Other receivables                                                    27,529             29,897
    Inventories                                                          75,841             69,907
    Prepaid royalties                                                     6,027              4,586
    Deferred income taxes                                                 7,400             19,700
    Investment in Natural Resource Partners, LP, at market               10,738                  -
    Other                                                                14,437             16,638
                                                                 ------------------- -------------------
                              Total current assets                      611,699            513,645
                                                                 ------------------- --------------------

  Property, plant and equipment, net                                  1,310,737          1,315,135
                                                                 ------------------- --------------------

  Other assets
    Prepaid royalties                                                    86,897             70,880
    Coal supply agreements                                                5,788              6,397
    Deferred income taxes                                               242,651            246,024
    Equity investments                                                  146,846            172,045
    Other                                                                79,719             63,523
                                                                 ------------------- --------------------
                                                                        561,901            558,869
                                                                 ------------------- --------------------
                              Total assets                        $   2,484,337      $   2,387,649
                                                                 =================== ====================

Liabilities and stockholders' equity
  Current liabilities
    Accounts payable                                              $     113,675      $      89,975
    Accrued expenses                                                    152,674            180,314
    Current portion of debt                                               4,250              6,349
                                                                 ------------------- --------------------
                              Total current liabilities                 270,599            276,638
  Long-term debt                                                        700,022            700,022
  Accrued postretirement benefits other than pension                    360,618            352,097
  Asset retirement obligations                                          144,156            143,545
  Accrued workers' compensation                                          77,461             77,672
  Other noncurrent liabilities                                          142,304            149,640
                                                                 ------------------- --------------------
                              Total liabilities                       1,695,160          1,699,614
                                                                 ------------------- --------------------

  Stockholders' equity

    Preferred stock                                                          29                 29
    Common stock                                                            550                536
    Paid-in capital                                                   1,025,223            988,476
    Retained deficit                                                   (190,846)          (255,936)
    Unearned compensation                                                (3,783)                 -
    Treasury stock, at cost                                              (5,047)            (5,047)
    Accumulated other comprehensive loss                                (36,949)           (40,023)
                                                                 ------------------- --------------------
                              Total stockholders' equity                789,177            688,035
                                                                 ------------------- --------------------
                              Total liabilities and
                                 stockholders' equity            $    2,484,337      $   2,387,649
                                                                 =================== ====================











                                        Arch Coal, Inc. and Subsidiaries
                                Condensed Consolidated Statements of Cash Flows
                                                 (In Thousands)

                                                                                         Three Months Ended
                                                                                              March 31,
                                                                                     ----------------------------
                                                                                         2004          2003
                                                                                     ------------ ---------------
                                                                                      (Unaudited)
                                                                                              

Operating activities
Net income (loss)                                                                    $    69,983   $  (16,839)
Adjustments to reconcile to cash
     provided by operating activities:
  Depreciation, depletion and amortization                                                36,105       39,511
  Prepaid royalties expensed                                                               3,730        3,105
  Accretion on asset retirement obligations                                                2,947        3,442
  Net gain on disposition of assets                                                         (318)        (148)
  Gain on sale of units of Natural Resource Partners, LP                                 (81,467)           -
  Mark to market adjustment for investment in Natural Resource Partners, LP               (8,171)           -
  Income from equity investments                                                          (3,690)     (11,110)
  Net distributions from equity investments                                                2,461        9,660
  Cumulative effect of accounting change                                                       -        3,654
  Other nonoperating expense                                                               1,895            -
  Changes in:
      Receivables                                                                        (25,977)      16,157
      Inventories                                                                         (5,934)      (8,942)
      Accounts payable and accrued expenses                                               (3,524)      (8,662)
      Income taxes                                                                         15,031      (4,438)
      Accrued postretirement benefits other than pension                                    8,521       6,630
      Asset retirement obligations                                                         (2,336)     (3,266)
      Accrued workers' compensation benefits                                                 (211)        786
      Other                                                                                 2,300       2,457
                                                                                     ------------- --------------

    Cash provided by operating activities                                                  11,345      31,997
                                                                                     ------------- --------------

Investing activities
Additions to property, plant and equipment                                                (31,654)    (48,085)
Proceeds from sale of units of Natural Resource Partners, LP                              100,121           -
Proceeds from dispositions of property, plant and equipment                                   717         168
Additions to prepaid royalties                                                            (21,188)    (20,384)
                                                                                     ------------- --------------

    Cash provided by (used in) investing activities                                        47,996     (68,301)
                                                                                     ------------- --------------

Financing activities
Net payments on revolver and lines of credit                                                    -     (42,497)
Payments on long-term debt                                                                 (2,099)          -
Debt financing costs                                                                         (957)     (1,101)
Dividends paid                                                                             (4,893)     (3,012)
Proceeds from issuance of preferred stock                                                       -     139,078
Proceeds from sale of common stock                                                         17,074          66
                                                                                     ------------- --------------

    Cash provided by financing activities                                                   9,125      92,534
                                                                                     ------------- --------------

Increase in cash and cash equivalents                                                      68,466      56,230
Cash and cash equivalents, beginning of period                                            254,541       9,557
                                                                                     ------------- --------------

Cash and cash equivalents, end of period                                              $   323,007   $  65,787
                                                                                     ============= ==============


Canyon Fuel Company cash flow information (Arch Coal ownership percentage)
  Depreciation, depletion and amortization                                                  4,390       5,493
  Additions to property, plant and equipment                                               (1,860)     (2,666)










                        Arch Coal, Inc. and Subsidiaries
                       Reconciliation of Non-GAAP Measures
                      (In thousands, except per share data)

Included in the  accompanying  release,  we have disclosed  income  available to
common  shareholders  for the  quarter  ending  March 31, 2004  excluding  gains
related to the sale of of a significant  portion of the company's  investment in
Natural Resource Partners,  as well as charges related to severance costs at the
soon-to-be-idled Skyline mine, certain charges related to incentive compensation
plans,  and the  termination of hedge  accounting for interest rate swaps.  This
measure is considered a non-GAAP  measure as defined by the SEC's  Regulation G.
The  following  reconciles  this  amount  to  net  income  available  to  common
shareholders reported under GAAP:




                                                                                                       Three Months Ended
                                                                                                            March 31
                                                                                                     -----------------------
                                                                                                              2004
                                                                                                     -----------------------
                                                                                                          (Unaudited)
                                                                                                   
     Net income available to common shareholders                                                      $         68,186
     Gain on sale of units of Natural Resource Partners, LP                                                    (81,467)
     Mark to market adjustment for investment in Natural Resource Partners, LP                                  (8,171)
     Severance costs related to Skyline idling                                                                   1,235
     Incentive compensation plan expense                                                                         5,003
     Other non-operating expense                                                                                 1,895
     Tax impact of the excluded items                                                                           20,990
                                                                                                     -----------------------

     Net income available to common shareholders excluding items                                      $          7,671
                                                                                                     =======================

     Fully diluted shares outstanding                                                                           61,592
     Adjustment to exclude impact of convertible preferred shares
          that would not be dilutive                                                                            (6,896)
                                                                                                     -----------------------
     Fully diluted shares outstanding                                                                           54,696
                                                                                                     -----------------------

     Earnings per common share excluding items                                                        $           0.14
                                                                                                     =======================