Attached files

file filename
EX-3 - EXHIBIT 3.2 - QUESTAR GAS COstr10k4q2010ex32.htm
EX-12 - EXHIBIT 12.1 - QUESTAR GAS COstr10k4q2010ex121.htm
EX-23 - EXHIBIT 23.1 - QUESTAR GAS COstr10k4q2010ex231.htm
EX-21 - EXHIBIT 21.1 - QUESTAR GAS COstr10k4q2010ex211.htm
EX-12 - EXHIBIT 12.2 - QUESTAR GAS COstr10k4q2010ex122.htm
EX-12 - EXHIBIT 12.3 - QUESTAR GAS COstr10k4q2010ex123.htm
EX-21 - EXHIBIT 21.2 - QUESTAR GAS COstr10k4q2010ex212.htm
EX-10 - EXHIBIT 10.2 - QUESTAR GAS COstr10k4q2010ex102amip.htm
EX-32 - EXHIBIT 32.1 - QUESTAR GAS COstr10k4q2010ex321.htm
EX-31 - EXHIBIT 31.1 - QUESTAR GAS COstr10k4q2010ex311.htm
EX-32 - EXHIBIT 32.5 - QUESTAR GAS COstr10k4q2010ex325.htm
EX-32 - EXHIBIT 32.4 - QUESTAR GAS COstr10k4q2010ex324.htm
EX-32 - EXHIBIT 32.6 - QUESTAR GAS COstr10k4q2010ex326.htm
EX-31 - EXHIBIT 31.4 - QUESTAR GAS COstr10k4q2010ex314.htm
EX-32 - EXHIBIT 32.2 - QUESTAR GAS COstr10k4q2010ex322.htm
EX-31 - EXHIBIT 31.5 - QUESTAR GAS COstr10k4q2010ex315.htm
EX-31 - EXHIBIT 31.3 - QUESTAR GAS COstr10k4q2010ex313.htm
EX-32 - EXHIBIT 32.3 - QUESTAR GAS COstr10k4q2010ex323.htm
EX-23 - EXHIBIT 23.2 - QUESTAR GAS COstr10k4q2010ex232.htm
EX-24 - EXHIBIT 24.1 - QUESTAR GAS COstr10k4q2010ex241poa.htm
10-K - 10-K - QUESTAR GAS COstr10k4q2010.htm
EX-31 - EXHIBIT 31.6 - QUESTAR GAS COstr10k4q2010ex316.htm



Exhibit 31.2


CERTIFICATION


I, Kevin W. Hadlock, certify that:



1.

I have reviewed this Form 10-K of Questar Corporation;


2.

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


3.

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;


4.

The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:


(a)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;


(b)

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;


(c)

Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and


(d)

Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting: and


5.

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function): and


(a)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and


(b)

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.




February 28, 2011

/s/Kevin W. Hadlock

Kevin W. Hadlock

Executive Vice President and

 Chief Financial Officer