-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 ncHZTU1D+Yzxc45r9VJdug==

<SEC-DOCUMENT>0001181431-08-022431.txt : 20080401
<SEC-HEADER>0001181431-08-022431.hdr.sgml : 20080401
<ACCEPTANCE-DATETIME>20080401164437
ACCESSION NUMBER:		0001181431-08-022431
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080331
FILED AS OF DATE:		20080401
DATE AS OF CHANGE:		20080401

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NICOR INC
		CENTRAL INDEX KEY:			0000072020
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS DISTRIBUTION [4924]
		IRS NUMBER:				362855175
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1844 FERRY RD
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
		BUSINESS PHONE:		6303059500

	MAIL ADDRESS:	
		STREET 1:		PO BOX 3014
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60566-7014

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JEAN RAYMOND A
		CENTRAL INDEX KEY:			0001028625

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07297
		FILM NUMBER:		08729943

	BUSINESS ADDRESS:	
		STREET 1:		1130 GREEN BAY ROAD
		CITY:			LAKE FOREST
		STATE:			IL
		ZIP:			60045
		BUSINESS PHONE:		8472958707

	MAIL ADDRESS:	
		STREET 1:		VARLEN CORP
		STREET 2:		55 SHUMAN BLVD PO BOX 3089
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60566
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd201422.xml
<DESCRIPTION>FORM 4 STOCK EQUIVALENT ACCOUNT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-03-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000072020</issuerCik>
        <issuerName>NICOR INC</issuerName>
        <issuerTradingSymbol>GAS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001028625</rptOwnerCik>
            <rptOwnerName>JEAN RAYMOND A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>NICOR INC.</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 3014</rptOwnerStreet2>
            <rptOwnerCity>NAPERVILLE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60566</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Share Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-03-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>606.980</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>32.95</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>606.980</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4125.787</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Awarded in lieu of retainers and fees under the Nicor Inc. Directors' Deferred Compensation Plan.  The director, upon retirement, is entitled to cash payment based on the share units then held and the current market price of Nicor Common Stock.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Antoinette M. Lambert - Attorney-in-Fact</signatureName>
        <signatureDate>2008-04-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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