EXHIBIT 99.1

                             [GRAPHIC OMITTED]

News Release



                                        FOR ADDITIONAL INFORMATION:
                                        Ken Gordon
                                        (859) 815-4195
                                        (614) 886-4424 (cell)
                                        kdgordon@ashland.com

                                         FOR IMMEDIATE RELEASE:
                                         June 30, 2005



ASHLAND INC. CLOSES MAP TRANSACTION
WITH MARATHON OIL CORPORATION

COVINGTON, Ky. - Ashland Inc. (NYSE: ASH) today announced the completion of
its previously  announced  agreement with Marathon Oil  Corporation  (NYSE:
MRO)  to  transfer  Ashland's   38-percent  interest  in  Marathon  Ashland
Petroleum LLC (MAP) and two other businesses to Marathon Oil Corporation in
a  transaction  valued  at  approximately  $3.7  billion.   The  two  other
businesses are Ashland's maleic anhydride business and 60 Valvoline Instant
Oil Change (VIOC) centers in Michigan and northwest Ohio.
         As a result of this transaction:
         -    Ashland shareholders of record as of the close of business on
              June 30, 2005, will receive .2364 Marathon shares per Ashland
              share.  In  total,   Ashland's   shareholders   will  receive
              17,538,815  shares of Marathon common stock with an aggregate
              value of $938 million based upon the June 29 closing price of
              Marathon stock.
         -    Ashland  received  cash of $2,406  million  and MAP  accounts
              receivable  valued at $911  million.  These  amounts  include
              approximately  $2.8 billion of cash and  accounts  receivable
              included  in the $3.7  billion  transaction  value,  and




              $518 million of cash and accounts receivable representing 38
              percent of MAP's distributable cash as of June 30, 2005.
         From March 18,  2004,  through  May 31,  2005,  MAP had  suspended
quarterly  cash  distributions  to  Ashland  and  Marathon.  As  previously
announced,  on May 31 Ashland received a cash distribution from MAP of $268
million.
          "Today,  we have completed one of our key strategic  objectives,"
said James J.  O'Brien,  Ashland's  chairman and chief  executive  officer.
"This transaction  demonstrates  Ashland's  commitment to deliver long-term
value to our  shareholders and brings to a close a long and notable chapter
of our history in petroleum refining and marketing."
         As  previously  announced,  Ashland  intends to use a  substantial
portion of the transaction  proceeds to retire all or most of the company's
outstanding  debt and  certain  other  financial  obligations.  Today,  the
company  has  repaid  $2.1  billion  of  debt  or  debt-like   obligations;
approximately  $400 million of obligations are expected to be repaid in the
September quarter or early in the December quarter.
         The above transactions are expected to result in a net increase in
Ashland's cash and  investment  securities of  approximately  $1.1 billion.
This  reflects  the  $2,406  million in cash and $911  million of  accounts
receivable received in the transaction,  the $268 million cash distribution
received on May 31 and the repayment of approximately  $2.5 billion of debt
and other financial obligations.
         Ashland currently does not anticipate that it will be obligated to
pay any tax under Internal  Revenue Code Section 355(e) in connection  with
this  transaction.  Whether  Ashland is required to pay any such taxes will
depend upon, among other things,  the trading price of new Ashland stock on
July 1, and the final adjusted tax basis of new Ashland  stock,  which will
be determined after July 1.
         Ashland   shareholders   of   record  on  June  30,   2005,   will
automatically  receive new  Ashland  shares  within the next few weeks.  In
addition,  a letter of  transmittal  and  instructions  for  exchanging old
Ashland  shares for shares of Marathon  stock will be mailed in July to the
Ashland  shareholders of record on June 30, 2005. Ashland  shareholders who
have shares deposited into a brokerage account will not need to do anything
to receive  their new  Ashland or  Marathon  stock.  The  Depository  Trust



Corporation (DTC) will exchange the shares they hold directly with National
City Bank,  the Exchange  Agent,  who in turn will send DTC the new Ashland
and Marathon shares.
         "We are entering an exciting new era for  Ashland,"  said O'Brien.
"Our  wholly-owned   businesses  are  well  positioned  in  markets  having
significant  opportunities  for  continued  growth.  As such, we will focus
first and  foremost  on  organic  growth.  When  acquisitions  provide  the
opportunity to strengthen our core businesses and to deliver economic value
to our  shareholders,  we will carefully  consider them. As always, we will
look to the  creativity  and  knowledge  of Ashland  people to realize  our
potential. I am privileged to lead this great team."
         With the completion of this  transaction,  Ashland will operate as
two Sectors - Chemical and Transportation Construction. The Chemical Sector
provides  innovative product and service solutions in adhesives;  composite
polymers;  metal casting solutions;  water treatment;  Valvoline(R) premium
motor oil and car care products;  and chemicals and plastics  distribution.
The  Transportation  Construction  Sector,  commercially  known as  Ashland
Paving And  Construction,  Inc. (APAC), is a major supplier of construction
materials including crushed aggregates and asphaltic  concrete;  and is one
of the nation's  largest  transportation  construction  contractors,  doing
business in 14 southern and mid-western states.
         Ashland   Inc.   (NYSE:   ASH)  is  a  Fortune  500  chemical  and
transportation   construction  company  providing  products,  services  and
customer solutions throughout the world. To learn more about Ashland, visit
www.ashland.com.
                                   - 0 -

FORWARD-LOOKING STATEMENTS
This news release contains forward-looking  statements,  within the meaning
of  Section  27A of the  Securities  Act of  1933  and  Section  21E of the
Securities  Exchange  Act of 1934,  with  respect  to  Ashland's  operating
performance.  These  estimates  are  based  upon a number  of  assumptions,
including those mentioned within this news release. Such estimates are also
based upon  internal  forecasts  and analyses of current and future  market
conditions and trends, management plans and strategies,  weather, operating
efficiencies and economic  conditions,  such as prices,  supply and demand,
cost  of  raw  materials,  and  legal  proceedings  and  claims  (including
environmental  and  asbestos   matters).   Although  Ashland  believes  its
expectations  are based on  reasonable  assumptions,  it cannot  assure the
expectations  reflected  herein  will  be  achieved.  This  forward-looking
information  may prove to be  inaccurate  and  actual  results  may  differ
significantly  from  those  anticipated  if one or more  of the  underlying
assumptions or expectations  proves to be inaccurate or is unrealized or if
other  unexpected  conditions  or events  occur.  Other  factors  and risks
affecting Ashland are contained in Ashland's Form 10-K, as amended, for the
fiscal year ended Sept.  30, 2004.  Ashland  undertakes  no  obligation  to
subsequently update or revise the  forward-looking  statements made in this
news  release to  reflect  events or  circumstances  after the date of this
release.

ADDITIONAL INFORMATION ABOUT THE MAP TRANSACTION
The  registration  statement  containing  the  proxy   statement/prospectus
relating to the  transaction  was declared  effective by the SEC on May 20,
2005. The definitive proxy statement/prospectus relating to the transaction
was filed with the SEC on May 25,  2005 and was  mailed on May 27,  2005 to
shareholders of record as of May 12, 2005.  Investors and security  holders
are urged to read those documents and any other relevant documents filed or
that will be filed  with the SEC as they  become  available,  because  they
contain,  or will  contain,  important  information.  Security  holders may
obtain a free copy of the definitive proxy  statement/prospectus  and other
documents  filed with the SEC by Ashland,  ATB  Holdings and New EXM at the
SEC's website at www.sec.gov. The definitive proxy statement/prospectus and
other documents filed with the SEC by Ashland, ATB Holdings and New EXM may
also be obtained for free in the SEC filings section on Ashland's  Investor
Relations website at  www.ashland.com/investors,  or by directing a request
to Ashland at 50 E. RiverCenter Blvd.,  Covington, KY 41012. The respective
directors and executive officers of Ashland and other persons may be deemed
to be  participants  in  solicitation of proxies in respect of the proposed
transaction.   Information  regarding  Ashland's  directors  and  executive
officers is available in its proxy  statement filed with the SEC by Ashland
on December  14,  2004.  Investors  may obtain  information  regarding  the
interests of participants in the solicitation of proxies in connection with
the  transaction  referenced  in the foregoing  information  by reading the
definitive proxy statement/prospectus.