Ronald W. Jibson Appointed Chairman of the Board for Questar Corporation

The board of directors of Questar Corporation (NYSE: ?STR) today
announced that Ronald W. Jibson will succeed Keith O. Rattie as the
chairman of its board of directors effective July 1, 2012. Jibson will
continue to serve as president and chief executive officer of the Salt
Lake City-based integrated energy company.

Jibson will replace Rattie, who will retire as Questar′s chairman after
serving since May 2003, but will continue as a Questar director. Rattie
joined Questar in January 2001 as its president and chief operating
officer. He was named president and chief executive officer in May 2002.
Since July 2010, Rattie has served as chairman of both Questar
Corporation and Denver-based QEP Resources, which was spun off from
Questar.

'On behalf of Questar′s board, employees and shareholders, I′d like to
thank Keith for his years of service as Questar′s chairman,? Jibson
said. 'Keith′s leadership transformed us from a respected regional
energy company into two top-tier energy companies nationally recognized
for financial performance and operational excellence.?

Jibson has served as president and CEO of Questar Corporation since July
2010. Prior to that, he was an executive vice president of the
corporation and president of its utility subsidiary, Questar Gas
Company, which serves about 1 million customers in Utah, southern Idaho
and southwestern Wyoming. Jibson has held several Questar executive and
management positions since starting with the company 32 years ago as a
design engineer.

Questar Corporation is a Rockies-based integrated natural gas company
with an enterprise value of about $4.5 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 Corporation

Investors: Tony Ivins, 801-324-5218

Media:
Chad Jones, 801-324-5495