-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WrE2Ykvpt8oAy6kaD2cYffxOZO3wbip+cgSpNNlkB3YuWfaWEoXJWAHVAoZt7unG
 QHF6mfaVVDibz63UOUAzmg==

<SEC-DOCUMENT>0001238842-08-000003.txt : 20080516
<SEC-HEADER>0001238842-08-000003.hdr.sgml : 20080516
<ACCEPTANCE-DATETIME>20080516140048
ACCESSION NUMBER:		0001238842-08-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080515
FILED AS OF DATE:		20080516
DATE AS OF CHANGE:		20080516

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RGC RESOURCES INC
		CENTRAL INDEX KEY:			0001069533
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION & DISTRIBUTION [4923]
		IRS NUMBER:				541909697
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		519 KIMBALLAVENUE N.E.
		CITY:			ROANOKE
		STATE:			VA
		ZIP:			24016
		BUSINESS PHONE:		5407774427

	MAIL ADDRESS:	
		STREET 1:		519 KIMBALL AVENUE N.E.
		CITY:			ROANOKE
		STATE:			VA
		ZIP:			24016

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lee Dale P
		CENTRAL INDEX KEY:			0001238842

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26591
		FILM NUMBER:		08841548

	BUSINESS ADDRESS:	
		STREET 1:		C/O RGC RESOURCES INC
		STREET 2:		P O BOX 13007
		CITY:			ROANOKE
		STATE:			VA
		ZIP:			24030
		BUSINESS PHONE:		5407773853

	MAIL ADDRESS:	
		STREET 1:		PO BOX 13007
		CITY:			ROANOKE
		STATE:			VA
		ZIP:			24030

	FORMER NAME:	
		FORMER CONFORMED NAME:	MOORE DALE P
		DATE OF NAME CHANGE:	20030604
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-05-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001069533</issuerCik>
        <issuerName>RGC RESOURCES INC</issuerName>
        <issuerTradingSymbol>RGCO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001238842</rptOwnerCik>
            <rptOwnerName>Lee Dale P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 13007</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROANOKE</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>24030</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President &amp; Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>75</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>27.25</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>542.337</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Includes 6.540 shares purchased through dividends reinvested in the Dividend Reinvestment Plan</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Dale P. Lee by Howard T. Lyon, POA dated 05/17/06</signatureName>
        <signatureDate>2008-05-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----