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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 E2IkarYMGOQX1dBBP67akcT4kI7Fk9aph/sK+LpGyQ7b+Hg4/fn4ZcqBFrZ+XV5E
 k9L6RWTl+Olcyr3AXECc2Q==

<SEC-DOCUMENT>9999999995-08-000716.txt : 20080305
<SEC-HEADER>9999999995-08-000716.hdr.sgml : 20080305
<ACCEPTANCE-DATETIME>20080305001527
ACCESSION NUMBER:		9999999995-08-000716
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20080304
DATE AS OF CHANGE:		20080305
EFFECTIVENESS DATE:		20080304

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			QUESTAR GAS CO
		CENTRAL INDEX KEY:			0000068589
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS DISTRIBUTION [4924]
		IRS NUMBER:				870407509
		STATE OF INCORPORATION:			UT
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-147317
		FILM NUMBER:		08666026

	BUSINESS ADDRESS:	
		STREET 1:		180 E FIRST SOUTH ST
		STREET 2:		PO BOX 45433
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84145-0433
		BUSINESS PHONE:		8013245555

	MAIL ADDRESS:	
		STREET 1:		180 EAST FIRST SOUTH ST
		STREET 2:		P O BOX 11150
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84147

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MOUNTAIN FUEL SUPPLY CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2008-03-04</finalEffectivenessDispDate>
        <finalEffectivenessDispTime>10:00:00</finalEffectivenessDispTime>
        <form>S-3</form>
        <filer>
            <cik>0000068589</cik>
            <entityName>QUESTAR GAS CO</entityName>
            <fileNumber>333-147317</fileNumber>
        </filer>
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</edgarSubmission>
</XML>
</TEXT>
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</SEC-DOCUMENT>
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