OMB APPROVAL

OMB Number:  3235-0101
Expires:    August 31, 2003
Estimated average burden
hours per response      2.0

         SEC USE ONLY

DOCUMENT SEQUENCE NO.


CUSIP NUMBER


WORK LOCATION

1(a) NAME OF ISSUER (Please type or print)

    Questar Corporation

(b) IRS IDENT. NO.

  87-0407509

(c) S.E.C. FILE NO.

    1-8796

1(d) ADDRESS OF ISSUER

    180 East 100 South
    Salt Lake City, Utah 84111

(e)TELEPHONE

AREA CODE

801

NUMBERS

324-5202

2 (a)
NAME OF PERSON FOR WHOSE ACCOUNT THE SECURITIES ARE TO BE SOLD

     Glenn H. Robinson

(b)
IRS IDENT. NO.
 
###-##-####

(c)  RELATIONSHIP TO ISSUER


Executive Officer

(d) ADDRESS

    180 East 100 South
    Salt Lake City, Utah 84111

INSTRUCTION: The person filing this notice should contact the issuer to obtain the I.R.S. identification Number and the S.E.C. File Number.

3(a)
Title of the Class of Securities To Be Sold

(b)
Name and Address of Each Broker Through Whom the Securities are to be Offered or Each Market Maker who is Acquiring the Securities

SEC USE ONLY

(c)
Number of Shares or Other Units To Be Sold
(See instr. 3(c))

(d)
Aggregate Market Value
(See instr. 3(d))

(e)
Number of Shares or Other Units Outstanding
(See instr. 3(e))

(f)
Approximate Date of Sale
(See instr. 3(f))

(MO.   DAY   YR.)

(g)
Name of Each Securities Exchange
(See instr. 3(g))

Broker-Dealer File Number

Common Stock (and attached Common Stock Purchase Rights)

9,006

$366,922.45

83,984,420

08-13-2004

NYSE

INSTRUCTIONS:

1.

(a)

Name of issuer

(b)

Issuer's I.R.S. Identification Number

(c)

Issuer's S.E.C. file number, if any

(d)

Issuer's address, including zip code

(e)

Issuer's telephone number, including area code

2.

(a)

Name of person for whose account the securities are to be sold

(b)

Such person's I.R.S. identification number, if such person is an entity

(c)

Such person's relationship to the issuer (e.g., officer, director, 10% stockholder, or member of immediate family of any of the foregoing)

(d)

Such person's address, including zip code

3.

(a)

Title of the class of securities to be sold

(b)

Name and address of each broker through whom the securities are intended to be sold

(c)

Number of shares or other units to be sold (if debt securities, give the aggregate face amount)

(d)

Aggregate market value of the securities to be sold as of a specified date within 10 days prior to the filing of this notice

(e)

Number of shares or other units of the class outstanding, or if debt securities the face amount thereof outstanding, as shown by the most recent report or statement published by the issuer

(f)

Approximate date on which the securities are to be sold

(g)

Name of each securities exchange, if any, on which the securities are intended to be sold

TABLE I -- SECURITIES TO BE SOLD
Furnish the following information with respect to the acquisition of the securities to be sold
and with respect to the payment of all or any part of the purchase price or other consideration therefor:

Title of the Class

Date you acquired

Nature of Acquisition Transaction

Name of Person from Whom Acquired
(If gift, also give date donor acquired)

Amount of Securities Acquired

Date of Payment

Nature of Payment

Common Stock (and attached Common Stock Purchase Rights)

8/12/2004

Direct from Questar (stock option exercise)

Questar Corporation

11,148

8/12/2004

Cash

TABLE 2 -- SECURITIES SOLD DURING THE PAST 3 MONTHS
Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold:

Name and
Address of Seller

Title of Securities Sold

Date of Sale

Amount of Securities Sold

Gross Proceeds

August 13, 2004

/s/ Connie C. Holbrook

Date of Notice

Connie C. Holbrook as Attorney in Fact
for G. H. Robinson

The notice shall be signed by the person for whose account the securities are to be sold. At least one copy of the notice shall be manually signed.
Any copies not manually signed shall bear typed or printed signatures.