QUESTAR CORPORATION NEWS

Questar Net Income Up 45% In Third Quarter 2006; Company Raises 2006 Earnings Guidance,
Provides Initial 2007 Outlook
(Oct. 26, 2006)

Questar Board Declares 248th Consecutive Dividend Without A Reduction
(Oct. 24, 2006)

Questar Announces Third-Quarter 2006 Earnings Teleconference and Webcast
(Oct. 9, 2006)

Questar Gas Asks PSC To Cut Rates By 10.5 Percent; Request Is Fourth Straight This Year
(Oct. 5, 2006)

Questar Shuts In Some Rockies Natural Gas Production, Raises Full-Year Production Guidance
(Oct. 3, 2006)

Questar Board Declares 247th Consecutive Dividend Without A Reduction
(Aug. 8, 2006)

Questar Net Income Up 49% In Second-Quarter 2006; Company Updates Estimates of Probable, Possible Reserves
(July 26, 2006)

Bruce Williamson Elected to Questar Board of Directors
(May 17, 2006)

Questar Board Declares Increased Quarterly Dividend
(May 16, 2006)

Questar Market Resources Prices Senior Notes Offering
(May 11, 2006)

Questar Net Income Grows 44% In First-Quarter 2006; Company Raises 2006 EPS and Production Guidance
(April 26, 2006)

Questar Overthrust Pipeline Completes Capacity Lease With Kinder Morgan; Sempra To Become Westernmost Segment Of Rockies Express
(Feb. 28, 2006)

Questar Net Income Grows 42% In 2005; Company Adjusts 2006 Earnings Guidance To Reflect Lower Price Expectations
(Feb. 14, 2006)

Questar Board Declares 245th Consecutive Dividend Without A Reduction
(Feb. 14, 2006)

Questar Announces Fourth-Quarter 2005 Teleconference and Webcast
(Jan. 23, 2006)