Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Livsey James R.
 2. Date of Event Requiring Statement (Month/Day/Year)
07/01/2010		 3. Issuer Name and Ticker or Trading Symbol
QUESTAR CORP [STR]
(Last)
(First)
(Middle)
180 E 100 S, P.O. BOX 45360		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SALT LAKE CITY, UT 84145-0433		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 40,921.141
D
 
Common Stock 4.6658 (1)
I
Employee Investment Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Phantom Stock Units   (2)   (2) Phantom Stock Units 1,688.6317 $ 0 D  
Stock Option 08/13/2001 02/13/2011 Common Stock 20,000 $ 4.515 D  
Stock Option 08/11/2002 02/11/2012 Common Stock 30,000 $ 3.695 D  
Stock Option 08/11/2003 02/11/2013 Common Stock 36,000 $ 4.37 D  
Stock Option   (3) 03/05/2016 Common Stock 30,000 $ 11.4 D  
Stock Option   (4) 03/05/2017 Common Stock 15,000 $ 13.1 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Livsey James R.
180 E 100 S, P.O. BOX 45360
SALT LAKE CITY, UT 84145-0433		       Executive Vice President  

Signatures

Thomas C. Jepperson, Attorney in Fact 07/12/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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 July 9, 2010, I have 4.6658 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) The option vests in three annual installments beginning on March 5, 2010.
(4) The option vests in three annual installments beginning on March 5, 2011.

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