X0202 4 2005-02-08 0 0000751652 QUESTAR CORP STR 0001179019 PARKS S E 180 EAST 100 SOUTH SALT LAKE CITY UT 84111 0 1 0 0 Sr. VP, and CFO Common Stock and attached Common Stock Purchase Rights 2005-02-08 4 A 0 3500 51 A 85439 D Common Stock and attached Common Stock Purchase Rights 22609.2188 I Employee Investment Plan Common Stock and attached Common Stock Purchase Rights 0 Common Stock and attached Common Stock Purchase Rights 0 229748 D Phantom Stock Units 0 Phantom Stock Units 0 4128.3099 D The shares vest in three annual installments, beginning two years from date of grant. The shares were awarded under the terms of Questar's Long-term Stock Incentive Plan; 1,167 vest on or about February 8, 2007; 1,167 on or about February 8, 2008; and 1,166 on or about February 8, 2009. As of February 7, 2005, I have 22,609.2188 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. The question about dates is irrelevant since I am not reporting any changes in my stock options. This date has not been filled in since I am not reporting any changes in my phantom stock units. I receive phantom stock units as a result of my participation in an excess benefit plan. This total includes 2,517.5823 units in such plan in addition to units held through my account balance in a deferred compensation plan. Connie C. Holbrook Attorney in Fact for S.E. Parks 2005-02-09