X0201 5/A 2003-12-31 2003-01-05 0 0 0 0000716039 UNOCAL CORP UCL 0001183513 CECIL JOE D UNOCAL CORPORATION 2141 ROSECRANS AVENUE, SUITE 4000 EL SEGUNDO CA 90245 0 1 0 0 Comptroller & VP Common Stock $1.00 Par Value 2003-01-02 5 G 0 67 0 D 6269 D Common Stock $1.00 Par Value 2003-01-02 5 G 0 67 0 A 4481 I By Family Trust Common Stock has attached Preferred Stock Purchase Rights. If and when the Rights become exercisable, the holders would initially be entitled to purchase one one-hundredth of a share of series B Junior Participating Preferred stock. This amendment is filed because the Form 5 filed on January 5, 2004 failed to include this transfer of shares from direct ownership to a family trust. Paul R. Moore, Attorney-In-Fact 2004-01-07