X0202 4 2004-11-04 0 0000751652 QUESTAR CORP STR 0001177839 ADAMSON BRENT L 180 E 100 S SALT LAKE CITY UT 84111 0 1 0 0 Executive Officer Common Stock and attached Common Stock Purchase Rights 2004-11-04 4 M 0 4000 16.8125 A 16764 D Common Stock and attached Common Stock Purchase Rights 2004-11-04 4 F 0 1358 49.49 D 15406 D Common Stock and attached Common Stock Purchase Rights 2004-11-04 5 G 0 E 328 49.49 D 15078 D Common Stock and attached Common Stock Purchase Rights 416.7119 I Employee Investment Plan Common Stock and attached Common Stock Purchase Rights 16.8125 2004-11-04 4 M 0 4000 16.8125 D 1996-08-13 2006-02-13 Common Stock and attached Common Stock Purchase Rights 4000 45500 D I exercised an option to purchase 4,000 shares of stock using 1,358 shares as consideration. As of November 5, 2004, I have 416.7119 equivalent shares of stock in Questar's Employee Investment Plan. The number of equivalent shares will fluctuate as Questar's stock price changes; this fluctuation does not reflect any transactions that should be reported. As previously reported, the options granted in February of 2001, February of 2002 and February of 2003 vest in four equal annual installments beginning six months after grant. My total reported includes installments of my 2001, 2002, and 2003 options that vested since the date of the last report. Connie C. Holbrook Attorney in Fact for B.L. Adamson 2004-11-08