Stock Trading History of Stanley Charles B

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Stanley Charles B since year 2005. The trader's CIK number is 1178565. At the time of this reporting, Stanley Charles B is the Executive Vice President of Questar Corp (stock ticker symbol STR).

Stock purchases, sales, and option exercises reported by *Stanley Charles B* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-02-12	STR	Questar Corp	Sale	1,289	81.42	104,950
2007-02-08	STR	Questar Corp	Sale	1,309	82.39	107,848
2006-08-02	STR	Questar Corp	Sale	3,500	90.00	315,000
2006-08-01	STR	Questar Corp	Option Exercise	3,500	23.95	83,825
2006-07-27	STR	Questar Corp	Option Exercise	10,500	23.95	251,475
2006-07-27	STR	Questar Corp	Sale	10,500	86.42	907,375
2006-02-13	STR	Questar Corp	Sale	6,443	74.92	482,709
2006-02-10	STR	Questar Corp	Sale	1,289	75.32	97,087

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Stanley Charles B (Executive Vice President of Questar Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.