X0201 4 2003-09-15 0 0000751652 QUESTAR CORP STR 0001178976 ROSE D N 180 EAST 100 SOUTH PO BOX 45360 SALT LAKE CITY UT 84145-0360 0 0 0 1 Retired Executive Officer Common Stock and attached Common Stock Purchase Rights 79666 D Phantom Stock Units 31.85 2003-09-15 4 A 0 0.4067 31.85 A 2004-05-01 2006-05-01 Phantom Stock Units 0.4067 11478.619 D Common Stock and attached Common Stock Purchase Rights 0 2003-05-01 2010-04-30 Common Stock and attached Common Stock Purchase Rights 0 287079 D I will receive three anual cash payments of the value of my phantom stock units beginning on or about May 1, 2004 and ending on or about May 1, 2006. This total includes 11,415.0323 units in an excess benefits plan. Connie C. Holbrook Atttorney in Fact for D.N. Rose 2003-09-17