-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FzvXLqbz5mVYbIFI+YbgF/+vpq8iOP0v46jRa6wprVh176n2+vgUytkxpsJcEa5T
 rJGo3V9GuARLKxvSb8K4xA==

<SEC-DOCUMENT>0000092416-03-000063.txt : 20030716
<SEC-HEADER>0000092416-03-000063.hdr.sgml : 20030716
<ACCEPTANCE-DATETIME>20030715175837
ACCESSION NUMBER:		0000092416-03-000063
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030715
FILED AS OF DATE:		20030716

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOUTHWEST GAS CORP
		CENTRAL INDEX KEY:			0000092416
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION & DISTRIBUTION [4923]
		IRS NUMBER:				880085720
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5241 SPRING MOUNTAIN RD
		STREET 2:		PO BOX 98510
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89193-8510
		BUSINESS PHONE:		7028767237

	MAIL ADDRESS:	
		STREET 1:		5241 SPRING MOUNTAIN RD
		STREET 2:		PO BOX 98510
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89193

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LOWMAN JAMES F
		CENTRAL INDEX KEY:			0001030286

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07850
		FILM NUMBER:		03788079

	BUSINESS ADDRESS:	
		STREET 1:		5241 SPRING MOUNTAIN RD
		STREET 2:		PO BOX 98510
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89193-8510
		BUSINESS PHONE:		7028767358

	MAIL ADDRESS:	
		STREET 1:		PO BOX 98510
		STREET 2:		5241 SPRING MOUNTAIN DRIVE
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			78193-8510
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>low15.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>4/A</documentType>
	<periodOfReport>2003-07-15</periodOfReport>
	<dateOfOriginalSubmission>2003-07-15</dateOfOriginalSubmission>
	<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000092416</issuerCik>
        <issuerName>SOUTHWEST GAS CORP</issuerName>
        <issuerTradingSymbol>SWX</issuerTradingSymbol>
	</issuer>
	<reportingOwner>
		<reportingOwnerId>
            <rptOwnerCik>0001030286</rptOwnerCik>
            <rptOwnerName>LOWMAN JAMES F</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/Central AZ Division</officerTitle>
		</reportingOwnerRelationship>
	</reportingOwner>
	<derivativeSecurity>
		<securityTitle>
			<value>Stock Option (right to buy)7/15/03</value>
		</securityTitle>
		<conversionOrExercisePrice>
			<value>21.09</value>
		</conversionOrExercisePrice>
		<transactionDate>
			<value>2003-07-15</value>
		</transactionDate>
		<transactionCoding>
			<transactionFormType>4</transactionFormType>
			<transactionCode>A</transactionCode>
			<equitySwapInvolved>0</equitySwapInvolved>
		</transactionCoding>
		<transactionAmounts>
			<transactionShares>
				<value>10000</value>
			</transactionShares>
			<transactionValue>
				<value>0</value>
			</transactionValue>
			<transactionAcquiredDisposedCode>
				<value>A</value>
			</transactionAcquiredDisposedCode>
		</transactionAmounts>
		<exerciseDate>
			<value>2004-07-15</value>
			<footnoteId id="F1"/>
		</exerciseDate>
		<expirationDate>
			<value>2013-07-15</value>
		</expirationDate>
		<underlyingSecurity>
			<underlyingSecurityTitle>
				<value>Common stock</value>
			</underlyingSecurityTitle>
			<underlyingSecurityShares>
				<value>10000</value>
			</underlyingSecurityShares>
		</underlyingSecurity>
		<postTransactionAmounts>
			<sharesOwnedFollowingTransaction>
				<value>10000</value>
			</sharesOwnedFollowingTransaction>
		</postTransactionAmounts>
		<ownershipNature>
			<directOrIndirectOwnership>
				<value>D</value>
			</directOrIndirectOwnership>
			<natureOfOwnership>
				<value/>
			</natureOfOwnership>
		</ownershipNature>
	</derivativeSecurity>
	<footnotes>
		<footnote id="F1">Option vests in three annual installments; 4,000 shares in 2004; 3,000 shares in 2005 and 3,000 shares in 2006.</footnote>
	</footnotes>
	<ownerSignature>
		<signatureName>By: Kathy M. Bailey, Attorney in Fact</signatureName>
		<signatureDate>2003-07-15</signatureDate>
	</ownerSignature>
</ownershipDocument>

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