X0201 4 2004-02-10 0 0000716039 UNOCAL CORP UCL 0001017985 MCCORMICK RICHARD D 3200 CHERRY CREEK S. DRIVE STE 230 DENVER CO 80209-3245 1 0 0 0 Stock Option (Right to Buy) 36.869 2004-02-10 4 A 0 6748. 0.00 A 2005-02-10 2014-02-10 Common Stock $1.00 Par Value 6748. 6748. D Conditional stock option grant awarded under the 2001 Directors' Deferred Compensation and Stock Award Plan, which will be cancelled upon stockholder approval of the 2004 Directors' Deferred Compensation and Restricted Stock Unit Award Plan. The stock option becomes exercisable in three equal annual installments on 2-10-2005, 2-10-2006 and 2-10-2007. 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 at a purchase price determined pursuant to the Rights Agreement. Paul R. Moore, Asst Secretary, Attorney-In-Fact 2004-02-12