Company:  QUESTAR CORP (STR)
Form Type:  10-K
Filing Date:  2/27/2009 
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-K
    PART II
      Item 8.
    PART I
      ITEM 1. BUSINESS
      ITEM 1A. RISK FACTORS.
      ITEM 1B. UNRESOLVED STAFF COMMENTS.
      ITEM 2. PROPERTIES.
      ITEM 3. LEGAL PROCEEDINGS.
      ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.
    PART II
      ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED ...
      ITEM 6. SELECTED FINANCIAL DATA.
        INCOME STATEMENT
      ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL ...
        LIQUIDITY AND CAPITAL RESOURCES
      ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT ...
        Report of Independent Registered Public Accounting Firm
        INCOME STATEMENT
        BALANCE SHEET
        BALANCE SHEET
        STOCKHOLDERS EQUITY
        CASH FLOW
        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
    VALUATION AND QUALIFYING ACCOUNTS
    PART II
      ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ...
      ITEM 9A. CONTROLS AND PROCEDURES.
      Report of Independent Registered Public Accounting Firm
      ITEM 9B. OTHER INFORMATION.
    PART III
      ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERANCE.
      ITEM 11. EXECUTIVE COMPENSATION.
      ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS ...
      ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, ...
      ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES.
    PART IV
      ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
    SIGNATURES
    EXHIBIT INDEX
  EXHIBIT 10
  EXHIBIT 10
  EXHIBIT 10
  EXHIBIT 10
  EXHIBIT 12
  EXHIBIT 14
  EXHIBIT 21
  EXHIBIT 23
    Consent of Independent Registered Public Accounting Firm
  EXHIBIT 23
    CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS
  EXHIBIT 23
    Consent of Independent Petroleum Engineers and Geologists
  EXHIBIT 24
    POWER OF ATTORNEY
  EXHIBIT 31
    CERTIFICATION
  EXHIBIT 31
    CERTIFICATION
  EXHIBIT 32
    CERTIFICATION PURSUANT TO