-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 KIxipaA9BqNROT6AN2Z/cIWWLEpCyar0y0FI/gBzxyGDf4yOUm2TvAX37BdkJphs
 B8PuGPEh3lLd0DEgqd9J5g==

<SEC-DOCUMENT>0001181431-03-012677.txt : 20030702
<SEC-HEADER>0001181431-03-012677.hdr.sgml : 20030702
<ACCEPTANCE-DATETIME>20030702142003
ACCESSION NUMBER:		0001181431-03-012677
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030701
FILED AS OF DATE:		20030702

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SHERMAN R BROOKS
		CENTRAL INDEX KEY:			0001193472

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-32453
		FILM NUMBER:		03771200

	BUSINESS ADDRESS:	
		STREET 1:		TWO BRUSH CREEK BLVD.
		STREET 2:		SUITE 200
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64112

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INERGY L P
		CENTRAL INDEX KEY:			0001136352
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-NONSTORE RETAILERS [5960]
		IRS NUMBER:				431918951
		STATE OF INCORPORATION:			MO

	BUSINESS ADDRESS:	
		STREET 1:		TWO BRUSH CREEK
		STREET 2:		SUITE 200
		CITY:			KANSAS CITY
		STATE:			MS
		ZIP:			64112
		BUSINESS PHONE:		8168428181
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd12387.xml
<DESCRIPTION>FORM 4 - JULY 2003
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4</documentType>
<periodOfReport>2003-07-01</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0001136352</issuerCik>
        <issuerName>INERGY L P</issuerName>
        <issuerTradingSymbol>NRGY</issuerTradingSymbol></issuer>
<reportingOwner>
<reportingOwnerId>
            <rptOwnerCik>0001193472</rptOwnerCik>
            <rptOwnerName>SHERMAN R BROOKS</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>Sr. VP/CFO</officerTitle>
<otherText></otherText></reportingOwnerRelationship></reportingOwner>
<nonDerivativeSecurity>
<securityTitle>
<value>Common Units</value></securityTitle>
<transactionDate>
<value>2003-07-01</value></transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>I</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved></transactionCoding>
<transactionTimeliness>
<value></value></transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>60.363</value></transactionShares>
<transactionValue>
<value>38.7242</value></transactionValue>
<transactionAcquiredDisposedCode>
<value>A</value></transactionAcquiredDisposedCode></transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>219.9954</value></sharesOwnedFollowingTransaction></postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>I</value></directOrIndirectOwnership>
<natureOfOwnership>
<value>By Unit Purchase Plan</value></natureOfOwnership></ownershipNature></nonDerivativeSecurity>
<nonDerivativeSecurity>
<securityTitle>
<value>Common Units</value></securityTitle>
<transactionDate>
<value>2001-07-25</value></transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>I</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved></transactionCoding>
<transactionTimeliness>
<value></value></transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>1000</value></transactionShares>
<transactionValue>
<value>22.00</value></transactionValue>
<transactionAcquiredDisposedCode>
<value>A</value></transactionAcquiredDisposedCode></transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>1000</value></sharesOwnedFollowingTransaction></postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Long Term Incentive Plan</value></securityTitle>
<conversionOrExercisePrice>
<value>29.44</value></conversionOrExercisePrice>
<transactionDate>
<value>2002-08-30</value></transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>A</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved></transactionCoding>
<transactionAmounts>
<transactionShares>
<value>37750</value></transactionShares>
<transactionValue>
<value>29.44</value></transactionValue>
<transactionAcquiredDisposedCode>
<value>A</value></transactionAcquiredDisposedCode></transactionAmounts>
<exerciseDate>
<value>1988-08-08</value>
<footnoteId id="F1"/></exerciseDate>
<expirationDate>
<value>2012-08-30</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Units</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>37750</value></underlyingSecurityShares></underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>37750</value></sharesOwnedFollowingTransaction></postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<footnotes>
<footnote id="F1">The options under the Long Term Incentive Plan will not vest before the conversion of any Senior Subordinated Units of the issuer and will vest no sooner than, and in the same proportion as, the conversion of Senior Subordinated Units.</footnote></footnotes>
<ownerSignature>
<signatureName>R. Brooks Sherman</signatureName>
<signatureDate>2003-07-02</signatureDate></ownerSignature></ownershipDocument>


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