X0303 4 2009-02-10 0 0000751652 QUESTAR CORP STR 0001166074 BAKER PHILLIPS S JR 6500 N. MINERAL DRIVE, SUITE 200 COEUR D'ALENE ID 83815-9408 1 0 0 0 Common Stock 2009-02-10 4 A 0 2800 35.38 A 12397 D The shares vest in three annual installments, beginning on March 5, 2010. The 1,925 shares granted on February 12, 2008 vest in three annual installments, beginning two years from date of grant on February 12, 2010. The shares were awarded under the terms of Questar's Long-term Stock Incentive Plan. Abigail L. Jones Attorney in Fact for P. S. Baker 2009-02-11