Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
STANLEY CHARLES B
   2. Issuer Name and Ticker or Trading Symbol
QUESTAR CORP [STR] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
(Last)
(First)
(Middle)
180 EAST 100 SOUTH, P.O. BOX 45433		 3. Date of Earliest Transaction (Month/Day/Year)
04/07/2009
(Street)

SALT LAKE CITY, UT 84145-0433		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock               94,810 D  
Common Stock               9,014.5876 (1) I Employee Investment Plan

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Phantom Stock Units $ 30.63 04/07/2009   A   226.1598     (2)   (2) Phantom Stock Units 226.1598 $ 30.63 24,469.8251 (3) D  
Stock Option $ 41.075               (4) 02/13/2015 Common Stock 60,000   60,000 D  
Stock Option $ 11.975             07/31/2002 01/31/2012 Common Stock 172,000   172,000 D  
Stock Option $ 11.475             08/11/2002 02/11/2012 Common Stock 112,000   112,000 D  
Stock Option $ 13.555             08/11/2003 02/11/2013 Common Stock 150,000   150,000 D  
Stock Option $ 38.57               (5) 10/24/2012 Common Stock 200,000   200,000 D  
Stock Option $ 35.38               (6) 03/05/2016 Common Stock 108,000   108,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
STANLEY CHARLES B
180 EAST 100 SOUTH, P.O. BOX 45433
SALT LAKE CITY, UT 84145-0433		   X     Executive Vice President  

Signatures

 Abigail L. Jones Attorney in Fact for C. B. Stanley   04/08/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) As of April 7, 2009, I have 9,014.5876 equivalent shares of stock in Questar's Employee Investment Plan. The number of equivalent shares will fluctuate as Questar's stock price changes; this fluctuation does not reflect any transactions that should be reported.
(2) Phantom stock units will be converted to cash per my elections on or within 5 years of my termination of employment (subject to 6-month delay if necessary to comply with IRC 409A), or upon my death or Disability.
(3) I also receive phantom stock units as a result of my participation in an excess benefit plan. I have 23,551.1128 shares in it in addition to my shares in a deferred compensation plan. I also receive dividends.
(4) The option vests in three annual installments which began on February 13, 2009.
(5) The option vests on February 1, 2010.
(6) The option vests in three annual installments beginning on March 5, 2010.

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