STATE OF UTAH
(State of other jurisdiction of
incorporation or organization)

           1-8796
(Commission File No.)

                   87-0407509
                (I.R.S. Employer
               Identification No.)

          Item 5. Other Events and Regulation FD Disclosure.

          On August 14, 2002, Keith O. Rattie, the President and Chief Executive Officer of Questar Corporation (the "Company") and S. E. Parks, the Company's Senior Vice President, Treasurer, and Chief Financial Officer, each submitted sworn statements to the Securities and Exchange Commission (the "Commission") pursuant to the Commission's Order No. 4-460 dated June 27, 2002.

          Item 7.  Financial Statements and Exhibits.

                    (c)   Exhibits.

          Exhibit No.

         Exhibit

              99.1

Statement Under Oath of Keith O. Rattie, President and Chief Executive Officer, Regarding Facts and Circumstances Relating to Exchange Act Filings.

              99.2

Statement Under Oath of S. E. Parks, Senior Vice President, Treasurer, and Chief Financial Officer, Regarding Facts and Circumstances Relating to Exchange Act Filings.

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 CORPORATION
  (Registrant)

August 14, 2002

/s/ S. E. Parks

S. E. Parks
Senior Vice President, Treasurer, and
Chief Financial Officer

List of Exhibits:

Exhibit No.

                  Exhibit

              99.1

Statement Under Oath of Keith O. Rattie, President and Chief Executive Officer, Regarding Facts and Circumstances Relating to Exchange Act Filings.

              99.2

Statement Under Oath of S. E. Parks, Senior Vice President, Treasurer, and Chief Financial Officer, Regarding Facts and Circumstances Relating to Exchange Act Filings.

Exhibit 99.1

          I, Keith O. Rattie, state and attest that:

                   (1)  To the best of my knowledge, based upon a review of the covered reports of Questar Corporation (the "Company"), and, except as corrected or supplemented in a subsequent covered report:

no covered report contained an untrue statement of a material fact as of the end of the period covered by such report (or in the case of a report on Form 8-K or definitive proxy materials, as of the date on which it was filed); and

No covered report omitted to state a material fact necessary to make the statements in the covered report, in light of the circumstances under which they were made, not misleading as of the end of the period covered by such report (or in the case of a report on Form 8-K or definitive proxy materials, as of the date on which it was filed).

                 (2)  I have reviewed the contents of this statement with the Company's audit committee.

                 (3)  In this statement under oath, each of the following, if filed on or before the date of this statement, is a "covered report":

Company's Annual Report on Form 10-K for the year ended December 31, 2001;

Company's Reports on Form 10-Q, all reports on Form 8-K and all definitive proxy materials filed with the Commission subsequent to the filing of the Form 10-K identified above; and

any amendments to any of the foregoing.

QUESTAR CORPORATION 

August 14, 2002

/s/ Keith O. Rattie

Keith O. Rattie
President and Chief Executive Officer

          Subscribed and sworn to before me this 14th day of August, 2002.

/s/ Monica P. Emerzian

Notary Public

Salt Lake County, Utah

My Commission Expires: 2-26-2006

Exhibit 99.2

          I, S. E. Parks, state and attest that:

                   (1)  To the best of my knowledge, based upon a review of the covered reports of Questar Corporation (the "Company"), and, except as corrected or supplemented in a subsequent covered report:

no covered report contained an untrue statement of a material fact as of the end of the period covered by such report (or in the case of a report on Form 8-K or definitive proxy materials, as of the date on which it was filed); and

No covered report omitted to state a material fact necessary to make the statements in the covered report, in light of the circumstances under which they were made, not misleading as of the end of the period covered by such report (or in the case of a report on Form 8-K or definitive proxy materials, as of the date on which it was filed).

                 (2)  I have reviewed the contents of this statement with the Company's audit committee.

                 (3)  In this statement under oath, each of the following, if filed on or before the date of this statement, is a "covered report":

Company's Annual Report on Form 10-K for the year ended December 31, 2001;

Company's Reports on Form 10-Q, all reports on Form 8-K and all definitive proxy materials filed with the Commission subsequent to the filing of the Form 10-K identified above; and

any amendments to any of the foregoing.

QUESTAR CORPORATION 

August 14, 2002

/s/ S. E. Parks

S. E. Parks
Senior Vice President, Treasurer, and
Chief Financial Officer

          Subscribed and sworn to before me this 14th day of August, 2002.

/s/ Monica P. Emerzian

Notary Public

Salt Lake County, Utah

My Commission Expires: 2-26-2006