EARNINGS RELEASES

Questar Net Income Up 54% in Second Quarter 2008
Company Raises 2008 Net Income Guidance
(July 28, 2008)

Questar Net Income Up 23% In First Quarter 2008
Company Raises 2008 Net Income and Production Guidance
(April 28, 2008)

Questar Net Income Grows 14% In 2007
Company Raises 2008 EPS Guidance and Production Estimate
(February 12, 2008)

DIVIDEND RELEASES

Questar Board Declares 255th Consecutive Dividend
(August 12, 2008)

Questar Board Declares 254th Consecutive Dividend
(May 20, 2008)

Questar Board Declares 253rd Consecutive Dividend
(February 12, 2008)