Company:  QUESTAR CORP (STR)
Form Type:  10-Q
Filing Date:  11/5/2009 
CIK:  0000751652 
Address:  180 EAST 100 SOUTH ST
PO BOX 45433
 
City, State, Zip:  SALT LAKE CITY, Utah 84145 
Telephone:  (801) 534-5000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$39.59  
Change: 
-0.59 (-1.47%)  
Trade Time: 
Nov 20  
Market Cap: 
$6.90B
Description of Business
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  FORM 10-Q
    PART I. FINANCIAL INFORMATION
      ITEM 1. FINANCIAL STATEMENTS.
        INCOME STATEMENT
        BALANCE SHEET
        CASH FLOW
        NOTES ACCOMPANYING THE CONDENSED CONSOLIDATED FINANCIAL ...
      ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL ...
      ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT ...
      ITEM 4. CONTROLS AND PROCEDURES.
    PART II. OTHER INFORMATION
      ITEM 1. LEGAL PROCEEDINGS.
      ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF ...
      ITEM 6. EXHIBITS.
    SIGNATURES
  EXHIBIT 31
    CERTIFICATION
  EXHIBIT 31
    CERTIFICATION
  EXHIBIT 32
    CERTIFICATION PURSUANT TO