X0201 4 2003-10-16 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 2003-10-16 4 M 0 174 21.375 A 79840 D Common Stock and attached Common Stock Purchase Rights 2003-10-16 4 M 0 12868 17 A 92708 D Common Stock and attached Common Stock Purchase Rights 2003-10-16 4 F 0 2070 32.91 D 90638 D Common Stock and attached Common Stock Purchase Rights 21.375 2003-10-16 4 M 0 174 21.375 D 1998-02-11 2008-02-11 Common Stock and attached Common Stock Purchase Rights 174 286905 D Common Stock and attached Common Stock Purchase Rights 17 2003-10-16 4 M 0 12868 17 D 1999-02-09 2009-02-09 Common Stock and attached Common Stock Purchase Rights 12868 274037 D Phantom Stock Units 0 2004-05-01 2006-05-01 Phantom Stock Units 0 11478.619 D I will receive three annual 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 Attorney in Fact for D.N. Rose 2003-10-17