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): June 22, 1999

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


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


               CityPlace One, 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 4 pages.
                         Exhibit Index begins on page 4.

Item 5. Other Events. On June 22, 1999, Ashland Inc. ("Ashland"), which owns approximately 58% of the shares outstanding of Arch Coal, Inc. (the "Company"), announced that it was exploring strategic alternatives for its investment in the Company. A copy of the Company's press release dated June 22, 1999, commenting on Ashland's announcement is attached hereto and incorporated herein by reference in its entirety. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits. (c) The following Exhibit is filed with this Current Report on Form 8-K: Exhibit No. Description ----------- ----------- 99 Press Release dated as of June 22, 1999 Page 2 of 4 pages. Exhibit Index begins on page 4.

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: June 25, 1999 ARCH COAL, INC. By: /s/ Jeffry N. Quinn ------------------------- Jeffry N. Quinn Senior Vice President - Law & Human Resources, Secretary and General Counsel Page 3 of 4 pages. Exhibit Index begins on page 4.

EXHIBIT INDEX ------------- Exhibit No. Description - ----------- ----------- 99 Press Release dated as of June 22, 1999 Page 4 of 4 pages.


                                                                      Exhibit 99


Arch Coal Comments on Ashland's Decision to Explore
Strategic Alternatives for Its Investment

ST.  LOUIS,  Missouri  -- Ashland  Inc.,  which owns 58% of Arch  Coal's  shares
outstanding,  announced today that it was exploring  strategic  alternatives for
its investment in Arch.  Ashland's decision has no immediate impact on Arch Coal
or its operations.

     "We fully support  Ashland's  decision to investigate  options for creating
additional  long-term value for the shareholders of both companies," said Steven
F. Leer, Arch Coal's president and chief executive officer. "Likewise, Arch Coal
remains focused on maximizing value for all its  shareholders.  Toward that end,
we will continue to concentrate on our principal  financial  objectives:  paying
down  debt,   boosting  earnings,   further  increasing  cash  flow,   improving
productivity and reviewing the sale of non-strategic assets."

     "In the past  two  years,  Arch  Coal has  dramatically  expanded  both its
low-sulfur  reserve position and its production of low-cost,  compliance coal, "
Leer said. "We believe these moves have placed Arch in an excellent  position to
capitalize on the changes that are occurring in the U.S. coal market,  including
the growing demand for electricity,  the  deregulation of the utility  industry,
and the shift to low-sulfur coal."

     This press release contains  forward-looking  statements within the meaning
of the Private Securities  Litigation Reform Act of 1995,  including Arch Coal's
expectations  with  respect  to  value  creation  and  the  company's   relative
competitive  position.  Although  Arch  Coal,  Inc.  believes  the  expectations
reflected  in  such   forward-looking   statements   are  based  on   reasonable
assumptions,  it can give no assurance that its  expectations  will be attained.
Factors that could cause actual results to differ  materially from  expectations
include  changes in local or  national  economic  conditions;  changes in mining
rates and costs for a variety of operational,  geologic,  permitting,  labor and
weather-related  reasons,  including  equipment  availability;  and other  risks
detailed  from time to time in the company's  reports filed with the  Securities
and Exchange  Commission,  including  quarterly reports on Form 10-Q, reports on
Form 8-K, and annual reports on Form 10-K.

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