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 *
RATTIE KEITH O
   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
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
180 EAST 100 SOUTH, P.O. BOX 45433		 3. Date of Earliest Transaction (Month/Day/Year)
12/27/2011
(Street)

SALT LAKE CITY, UT 84145-0433		 4. If Amendment, Date Original Filed(Month/Day/Year)
12/27/2011		 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 12/27/2011   M   50,000 A $ 3.695 378,281 D  
Common Stock 12/27/2011   F   26,147 D $ 19.95 352,134 D  
Common Stock               2,646 I IRA
Common Stock               10,000 I The Rattie Family Foundation

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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
Stock Option $ 3.695 12/27/2011   M     50,000 08/11/2002 02/11/2012 Common Stock 50,000 $ 3.695 0 D  
Restricted Stock Unit $ 0               (1)   (1) Common Stock 69,106.9247   69,106.9247 D  
Stock Option $ 11.4             06/30/2010 03/05/2016 Common Stock 147,174   147,174 D  
Stock Option $ 13.235             06/30/2010 02/13/2015 Common Stock 80,000   80,000 D  
Stock Option $ 17.35             06/30/2010 02/12/2016 Common Stock 30,000   30,000 D  
Stock Option $ 12.43             06/30/2010 10/24/2012 Common Stock 200,000   200,000 D  
Stock Option $ 13.1             06/30/2010 03/05/2017 Common Stock 125,000   125,000 D  
Stock Option $ 4.365             08/11/2003 02/11/2013 Common Stock 300,000   300,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RATTIE KEITH O
180 EAST 100 SOUTH, P.O. BOX 45433
SALT LAKE CITY, UT 84145-0433		   X      

Signatures

 Julie A. Wray, Attorney in Fact   01/04/2012
**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) The restricted stock units vest in three equal annual installments beginning on July 1, 2011, subject to accelerated vesting upon the occurrence of certain events a set forth in the award agreement.

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