Attached files

file filename
EX-12 - EXHIBIT 12. - QUESTAR CORPstr10k4q2009ex12.htm
EX-21 - EXHIBIT 21. - QUESTAR CORPstr10k4q2009ex21.htm
EX-23 - EXHIBIT 23.2. - QUESTAR CORPstr10k4q2009ex232.htm
EX-31 - EXHIBIT 31.1. - QUESTAR CORPstr10k4q2009ex311.htm
EX-23 - EXHIBIT 23.3. - QUESTAR CORPstr10k4q2009ex233.htm
EX-31 - EXHIBIT 31.2. - QUESTAR CORPstr10k4q2009ex312.htm
EX-23 - EXHIBIT 23.1. - QUESTAR CORPstr10k4q2009ex231.htm
EX-24 - EXHIBIT 24. - QUESTAR CORPstr10k4q2009ex24poa.htm
EXCEL - IDEA: XBRL DOCUMENT - QUESTAR CORPFinancial_Report.xls
10-K - 10-K - QUESTAR CORPstr10k4q2009.htm



Exhibit No. 32.



CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002



In connection with this report of Questar Corporation (the Company) on Form 10-K for the period ended December 31, 2009, as filed with the Securities and Exchange Commission on the date hereof (the Report), Keith O. Rattie, Chairman, President and Chief Executive Officer of the Company, and Richard J. Doleshek, Executive Vice President and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:


(1)

The Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and


(2)

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.


QUESTAR CORPORATION



February 26, 2010

/s/Keith O. Rattie

Keith O. Rattie

Chairman, President and Chief Executive Officer




February 26, 2010

/s/Richard J. Doleshek

Richard J. Doleshek

Executive Vice President and Chief Financial Officer