FORM 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
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  OMB Number: 3235-0287
  Expires: January 31, 2005
[  ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility
Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
  Estimated average burden
  hours per response....   0.5
                 
(Print or Type Responses)
1. Name and Address of Reporting Person* 2. Issuer Name and Ticker or Trading Symbol 6. Relationship of Reporting Person(s) to Issuer
              (Check all applicable)
Olson, R. Casey Occidental Petroleum Corporation    
OXY            Director            10% Owner
(Last)                                (First)                          (Middle)
  X       Officer (give title            Other (specify
Occidental Oil and Gas Corporation 3. I.R.S. Identification Number 4. Statement for Month/Day/Year                  below)                below)
5 East Greenway Plaza of Reporting Person, if an
entity (voluntary) 02/05/2003
                                          (Street)
Vice President
5. If Amendment, Date of Original
Houston, Texas 77046-0504 (Month/Year)
7. Individual or Joint/Group Filing (Check Applicable Line)
       (City)                               (State)                           (Zip)   X       Form filed by One Reporting Person
           Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security 2. Transaction 2a. Deemed 3. Transaction Code 4. Securities Acquired (A) or 5. Amount of 6. Ownership 7. Nature of
(Instr. 3) Date Execution Disposed of (D) Securities Form: Indirect
Date, if any (Instr. 8) Beneficially Direct (D) or Beneficial
(Month/Day/ (Instr. 3, 4 and 5) Owned at End Indirect (I) Ownership
Year) (Month/Day/
of Month
Year) Code V Amount (A) or (D) Price (Instr. 3 and 4) (Instr. 4) (Instr. 4)
Common Stock     02/05/2003      M 4,875 A $20.5000 D
Common Stock     02/05/2003      S 4,875 D $29.3127 D
Common Stock     02/05/2003      M 40,000 A $23.8750 D
Common Stock     02/05/2003      S 40,000 D $29.3127 D
Common Stock     02/05/2003      M 33,345 A $20.0625 D
Common Stock     02/05/2003      S 33,345 D $29.3127 D
Common Stock     02/05/2003      M 1,661 A $20.0625 D
Common Stock     02/05/2003      S 1,661 D $29.3127 3,795 D
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
 

 

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FORM 4 (continued)                               Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned

(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative 2. Conver- 3. Trans- 3a. Deemed 4. Transac- 5. Number of Deriv- 6. Date Exer- 7. Title and Amount of 8. Price 9. Number 10. Owner- 11. Na-
Security sion or action Execu- tion Code ative Securities cisable and Ex- Underlying of of Der- ship ture
(Instr. 3) Exercise Date tion (Instr. 8) Acquired (A) or piration Date Securities Deriv- ivative Form of In-
Price of Date, Disposed of (D) (Month/Day/ (Instr. 3 and 4) ative Secur- of De- direct
Deriv- (Month/ if any (Instr. 3, 4 and 5) Year) Secur- ities rivative Bene-
ative Day/ ity Bene- Secur- ficial
Security Year) (Month/
ficially ity: Own-
Day/ (Instr. Owned Direct ership
Year)     Date     Expira- Amount or 5) at End (D) or (Instr. 4)
Code V (A) (D)     Exer-     tion Title Number of of Indi-
    cisable     Date Shares Month rect (I)
(Instr. 4) (Instr. 4)
Employee stock option (right to buy) $20.5000 02/05/03 M 4,875 (1) 07/14/09 Common Stock 4,875 0 D
Employee stock option (right to buy) $23.8750 02/05/03 M 40,000 (2) 11/10/09 Common Stock 40,000 0 D
Employee stock option (right to buy) $20.0625 02/05/03 M 33,345 (3) 07/19/10 Common Stock 33,345 D
Employee stock option (right to buy) $20.0625 02/05/03 M 1,661 (3) 07/19/10 Common Stock 1,661 19,994 D
                               
                               
                               
                               
Explanation of Responses:
 
(1)    One-third of the option vested on July 14, 2000. The remainder of the option vested on May 3, 2001.
(2)    The option vested in three equal annual installments beginning on November 10, 2000.
(3)    The option vests in three equal annual installments beginning on July 19, 2001.
    
    
    
    
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
 
Note: File three copies of this Form, one of which must be manually signed.
If space is insufficient, see Instruction 6 for procedure. 		/s/ CHRISTEL H. PAULI
**Signature of Reporting Person 		February 6, 2003
Date
Potential persons who are to respond to the collection of information contained in this form are not
required to respond unless the form displays a currently valid OMB control number. 		Christel H. Pauli, Attorney-in-Fact
for R. Casey Olson

 

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