<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   04/22/03  TZ    -->
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2003-07-15</periodOfReport>
    <issuer>
        <issuerCik>0000073020</issuerCik>
        <issuerName>NORTHWEST NATURAL GAS CO</issuerName>
        <issuerTradingSymbol>NWN</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
      <reportingOwnerId>
            <rptOwnerCik>0001192777</rptOwnerCik>
            <rptOwnerName>DOOLITTLE LEA ANNE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>0</isDirector>
         <isOfficer>1</isOfficer>
         <isTenPercentOwner>0</isTenPercentOwner>
         <isOther>0</isOther>
         <officerTitle>Vice President</officerTitle>
       </reportingOwnerRelationship>
   </reportingOwner>
   <nonDerivativeSecurity>
      <securityTitle>
         <value>Common Stock, $3-1/6 par value</value>
      </securityTitle>
      <transactionDate>
         <value>2003-07-15</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>A</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>3.443</value>
         </transactionShares>
         <transactionValue>
           <value>28.50</value>
         </transactionValue>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
     <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>282.454</value>
            <footnoteId id="F1"/>
            <footnoteId id="F2"/>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>I</value>
         </directOrIndirectOwnership>
         <natureOfOwnership>
            <value>See footnote (1)</value>
         </natureOfOwnership>
      </ownershipNature>
   </nonDerivativeSecurity>
   <footnotes>
<footnote id="F1"> Reporting person has indirect beneficial ownership of shares of Northwest Natural Gas Company Common Stock, $3-1/6 par value, in the following forms: (a) 282.454 shares have been credited to reporting person's account under the issuer's Executive Deferred Compensation Plan, of which 3.443 shares were credited to reporting person's account on 7-15-03; and (b) 225.403 shares are held in reporting person's account under issuer's Retirement K Savings Plan as of 6-30-03.</footnote>

<footnote id="F2"> Direct beneficial ownership of shares of Northwest Natural Gas Company Common Stock, $3-1/6 par value: 293.775 shares.</footnote>
   </footnotes>
   <ownerSignature>
      <signatureName>/s/ C.J. Rue, Attorney-in-Fact</signatureName>
      <signatureDate>2003-07-15</signatureDate>
   </ownerSignature>
</ownershipDocument>

