4 2003-06-16 0 0000751652 QUESTAR CORP STR 0001180568 RATTIE KEITH O 0 1 0 0 Pres & Chief Executive Officer Phantom Stock Units 34 2003-06-16 4 A 0 0.4577 34 A 1988-08-08 1988-08-08 Phantom Stock Units 0.4577 6048.7918 D Phantom Stock Units will be converted to cash beginning at retirement; retirement date is unknown. Phantom Stock Units will be converted to cash beginning at retirement; retirement date is unknown. I receive phantom stock units as a result of my participation in an excess benefit plan sponsored by Questar. This total does not include 31.9030 units held through my account in a deferred compensation plan. This also does not include 889.75 stock units held indirectly through Questar's Employee Investment Plan as of June 17, 2003, 67,373 Common Stock shares, or 135,000 shares covered by vested options. Detailed information concerning my options has been previously disclosed. Connie C. Holbrook as Attorney in Fact for Keith O. Rattie 2003-06-17