X0202 4 2005-09-09 0 0000110430 FRONTIER OIL CORP /NEW/ FTO 0001189708 BECHTOL J CURRIE 10000 MEMORIAL DRIVE SUITE 600 HOUSTON TX 77024 0 1 0 0 VP-General Counsel, Secretary Common Stock 2005-09-09 4 M 0 30000 8.325 A 74094 D Common Stock 2005-09-09 4 S 0 19900 41.40 D 54194 D Common Stock 2005-09-09 4 S 0 300 41.41 D 53894 D Common Stock 2005-09-09 4 S 0 800 41.42 D 53094 D Common Stock 2005-09-09 4 S 0 1900 41.43 D 51194 D Common Stock 2005-09-09 4 S 0 500 41.48 D 50694 D Common Stock 2005-09-09 4 S 0 700 41.49 D 49994 D Common Stock 2005-09-09 4 S 0 1100 41.50 D 48894 D Common Stock 2005-09-09 4 S 0 100 41.53 D 48794 D Common Stock 2005-09-09 4 S 0 1300 41.58 D 47494 D Common Stock 2005-09-09 4 S 0 300 41.59 D 47194 D Common Stock 2005-09-09 4 S 0 3100 41.60 D 44094 D Employee Stock Option Plan 8.325 2005-09-09 4 M 0 30000 8.325 D 2003-02-20 2008-02-19 Common Stock 30000 10000 D Ending balance of securities beneficially owned reflects two-for-one stock split on June 17, 2005. J. Currie Bechtol 2005-09-12