UNITED STATES SECURITIES AND EXCHANGE COMMISSION  Washington, D.C.  20549  FORM 10-Q/A Amendment No. 1  [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934  For the quarter ended March 31, 2008  [  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934  For the transition period from ___ to ___  QUESTAR GAS COMPANY (Exact name of registrant as specified in its charter)  STATE OF UTAH333-6921087-0155877(State or other jurisdiction of
incorporation or organization)(Commission File No.)(I.R.S. Employer
Identification No.)  180 East 100 South Street, P.O. Box 45360 Salt Lake City, Utah 84145-0360 (Address of principal executive offices) Registrants telephone number, including area code (801) 324-5555  Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes [X]     No [   ]  Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act.  (Check one):  Large accelerated filer   [   ]Accelerated filer
[   ]Non-accelerated filer     [X]   (Do not check if a smaller reporting company)Smaller reporting company   [   ]  Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes [   ]     No [X]  On April 30, 2008, 9,189,626 shares of the registrants common stock, $2.50 par value, were outstanding. All shares are owned by Questar Corporation.  Registrant meets the conditions set forth in General Instruction H (1) (a) and (b) of Form 10-Q and is filing this amended form with the reduced disclosure format.


EXPLANATORY NOTE  This Amendment No. 1 to the Quarterly Report on Form 10-Q of Questar Gas Company (the Company) amends the Companys Quarterly Report on Form 10-Q for the quarter ended March 31, 2008, (the Original Filing) which was filed with the Securities and Exchange Commission on May 7, 2008. The Company is filing this Amendment No. 1 for the purpose of providing revised Exhibits 31.1 and 31.2 which contain the Certification of the Chief Executive Officer and the Certification of the Chief Financial Officer, respectively. The certifications included in Exhibits 31.1 and 31.2 to the Original Filing inadvertently omitted the language required to be included in paragraph 4(b) of such certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Except as described above, this Amendment No. 1 does not amend any other information set forth in the Original Filing and the Company has not updated disclosures included therein to reflect any events that occurred subsequent to May 7, 2008.   Questar Gas 2008 Form 10-Q/A 2   Questar Gas Company Form 10-Q/A for the Quarter Ended March 31, 2008  TABLE OF CONTENTS  PART II. OTHER INFORMATION  ITEM 6. EXHIBITS 4  Signatures 4


Questar Gas 2008 Form 10-Q/A 3


PART II.  OTHER INFORMATION     ITEM 6.  EXHIBITS.  a. The following exhibits are filed as part of this report:  Exhibit No. Exhibits   31.1. Certification signed by Ronald W. Jibson, Questar Gas Companys President and Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.  31.2. Certification signed by S. E. Parks, Questar Gas Companys Vice President and Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.    SIGNATURES  Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.  QUESTAR GAS COMPANY (Registrant)    November 6, 2008 /s/Ronald W. Jibson Ronald W. Jibson President and Chief Executive Officer    November 6, 2008 /s/S/ E. Parks S. E. Parks Vice President and Chief Financial Officer    Exhibits List  Exhibit No. Exhibits  31.1. Certification signed by Ronald W. Jibson, Questar Gas Companys President and Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.  31.2. Certification signed by S. E. Parks, Questar Gas Companys Vice President and Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.


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