Questar Announces 2012 Second-Quarter Results Teleconference and Webcast

Questar Corp. (NYSE:STR) will host a teleconference and webcast to
discuss second-quarter 2012 results beginning at 9:30 a.m. ET (7:30 a.m.
MT) on Thursday, July 26, 2012. Ronald W. Jibson, Questar chairman,
president and CEO, and Kevin W. Hadlock, executive vice president and
CFO, will comment on Questar′s second-quarter performance. Questar plans
to issue its second-quarter 2012 earnings release Wednesday, July 25,
2012, after the market closes.

Interested persons may listen to the webcast online at the Questar
website, www.questar.com.
A podcast will also be available for download following the webcast at www.questar.com.
A replay of the teleconference will be available on the website,
accessed by clicking on Investors>News, Events & Presentations>Calendar.
A telephone audio replay will be available from July 26-29, 2012, by
calling (855) 859-2056 or (404) 537-3406 and then pressing 43180249.

Questar Corporation is a Rockies-based integrated natural gas company
with an enterprise value of about $4.9 billion. Its subsidiaries include:

• 
  Questar Gas Company?a regulated natural gas distribution utility
  serving more than 900,000 homes and businesses in Utah, Wyoming and
  Idaho;
  
• 
  Wexpro Company?which develops and produces natural gas on behalf of
  Questar Gas Company′s utility customers;
  
• 
  Questar Pipeline Company?which operates interstate natural gas
  pipelines and storage facilities in the western United States.
  

Questar Corp.

Investors: ?Tony Ivins, 801-324-5218

Media:
Chad Jones, 801-324-5495