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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 WkEbv34iBWnTaJseY29B4ULTQDTRHFZcENyGopifX1IrOCeZeDBBcZhjneXuOVVD
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<SEC-DOCUMENT>0000007694-05-000007.txt : 20050103
<SEC-HEADER>0000007694-05-000007.hdr.sgml : 20041231
<ACCEPTANCE-DATETIME>20050103143938
ACCESSION NUMBER:		0000007694-05-000007
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041231
FILED AS OF DATE:		20050103
DATE AS OF CHANGE:		20050103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SOLSO THEODORE M
		CENTRAL INDEX KEY:			0001097587
		STATE OF INCORPORATION:			KY
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-02918
		FILM NUMBER:		05501972

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8123761909

	MAIL ADDRESS:	
		STREET 1:		C/O IRWIN FINANCIAL CORPORATION
		STREET 2:		500 WASHINGTON STREET
		CITY:			COLUMBUS
		STATE:			IN
		ZIP:			47201

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASHLAND INC
		CENTRAL INDEX KEY:			0000007694
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-CHEMICALS & ALLIED PRODUCTS [5160]
		IRS NUMBER:				610122250
		STATE OF INCORPORATION:			KY
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		50 E. RIVERCENTER BOULEVARD
		CITY:			COVINGTON
		STATE:			KY
		ZIP:			41012
		BUSINESS PHONE:		6068153333

	MAIL ADDRESS:	
		STREET 1:		50 E. RIVERCENTER BOULEVARD
		CITY:			COVINGTON
		STATE:			KY
		ZIP:			41012

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ASHLAND OIL INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ASHLAND OIL & REFINING CO
		DATE OF NAME CHANGE:	19700806
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001097587d20050103f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000007694</issuerCik>
        <issuerName>ASHLAND INC</issuerName>
        <issuerTradingSymbol>ASH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001097587</rptOwnerCik>
            <rptOwnerName>SOLSO THEODORE M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>CUMMINS ENGINE COMPANY, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>500 JACKSON STREET</rptOwnerStreet2>
            <rptOwnerCity>COLUMBUS</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>47202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Restricted Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-12-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F3"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>377</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>58.38</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>377</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11825</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of Restricted Common Stock acquired pursuant to Ashland's stock incentive plans as approved by the shareholders and exempt pursuant to Rule 16b-3.</footnote>
        <footnote id="F2">1-for-1</footnote>
        <footnote id="F3">Common Stock Units acquired pursuant to Ashland's Deferred Compensation Plan for Non-Employee Directors as of 12-31-04, payable in cash or stock upon termination of service and exempt under Rule 16b-3.  (One (1) Common Stock Unit in the Deferred Compensation Plan for Non-Employee Directors is the equivalent of one (1) share of Ashland Common Stock)</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>M. Craig Hall</signatureName>
        <signatureDate>2005-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>

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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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