X0202 4 2007-09-24 0 0000110430 FRONTIER OIL CORP /NEW/ FTO 0001351969 Aron Doug S 10000 MEMORIAL DRIVE, SUITE 600 HOUSTON TX 77024-3411 0 1 0 0 VP - Corporate Finance Common Stock 2007-09-24 4 J 0 9 34.87 A 23589 D Common Stock 2007-09-24 4 M 0 2500 4.1625 A 26089 D Common Stock 2007-09-24 4 S 0 2500 45.79 D 23589 D Common Stock 2007-09-24 4 S 0 3914 45.72 D 19675 D Employee Stock Option Plan 4.1625 2007-09-24 4 M 0 2500 4.1625 D 2003-02-20 2008-02-20 Common Stock 2500 0 D Shares issued to offset overwithholding of taxes. Doug S. Aron 2007-09-24