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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934

Filed by the registrant   x

Filed by a party other than the registrant   ¨

Check the appropriate box:

 

 

 

 

 

 

 

 

¨

  

Preliminary proxy statement

 

¨

  

Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨

  

Definitive proxy statement

 

 

  

 

x

  

Definitive additional materials

 

 

  

 

¨

  

Soliciting material under Rule 14a-12

 

 

  

 

QUESTAR CORPORATION

 

(Name of Registrant as Specified In Charter)

 

 

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check the appropriate box):

 

x

No fee required.

 

¨

Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

 

 

(1)

Title of each class of securities to which transaction applies:

   

 

 

 

(2)

Aggregate number of securities to which transaction applies:

 

 

 

 

(3)

Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

 

 

 

 

(4)

Proposed maximum aggregate value of transaction:

 

 

 

 

(5)

Total fee paid:

 

 

 

¨

Fee paid previously with preliminary materials.

 

¨

Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.

 

 

(1)

Amount previously paid:

 

 

 

 

(2)

Form, Schedule or Registration Statement No.:

 

 

 

 

(3)

Filing party:

 

 

 

 

(4)

Date filed:

 

 





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ADDITIONAL INFORMATION


Subsequent to filing and mailing 2009 Proxy Statement of Questar Corporation (the "Company"), the Company discovered an error in a table titled "Grants of Plan-Based Awards" that resulted in a significant overstatement of Mr. Rattie's compensation. The grant date fair value of the stock options granted to Mr. Rattie on February 12, 2008, and shown in column (l) should be $335,400 instead of $1,614,900. The number that appears in the table was incorrectly calculated by multiplying the number of option shares by the closing price of the Company's common stock on the date of grant. The new value reflects the grant date value, as of February 12, 2008, of the stock options granted to Mr. Rattie, calculated in accordance with Statement of Financial Accounting Standards 123R.