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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
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[  ] 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
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(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)
de Brier, Donald P.			Occidental Petroleum Corporation
			OXY				Director	10% Owner
(Last)                                (First)                          (Middle)							X       Officer (give title	Other (specify
		3.	I.R.S. Identification Number	4.	Statement for Month/Day/Year		below)	below)
10889 Wilshire Boulevard			of Reporting Person, if an
			entity (voluntary)		08/27/2002		Executive Vice President,
(Street)							General Counsel and Secretary
				5.	If Amendment, Date of Original
Los Angeles, California 90024					(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 Date

3.

Transaction Code

4.

Securities Acquired (A) or

5.

Amount of

6.

Ownership

7.

Nature of

(Instr. 3)

Disposed of (D)

Securities

Form:

Indirect

(Month/Day/Year)

(Instr. 8)

Beneficially

Direct (D) or

Beneficial

(Instr. 3, 4 and 5)

Owned at End

Indirect (I)

Ownership

of Month

Code

V

Amount

(A) or (D)

Price

(Instr. 3 and 4)

(Instr. 4)

(Instr. 4)

Common Stock

08/27/2002

M

15,455

A

$22.0000

D

Common Stock

08/27/2002

F

12,832

D

$29.6900

87,606

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-

4.

Transac-

5.

Number of Deriv-

6.

Date Exer-

7.

Title and Amount of Under-

8.

Price

9.

Number

10.

Owner-

11.

Na-

Security

sion or

action

tion Code

ative Securities Ac-

cisable and Ex-

lying Securities

of

of Der-

ship

ture

(Instr. 3)

Exercise

Date

(Instr. 8)

quired (A) or Dis-

piration Date

(Instr. 3 and 4)

Deriv-

ivative

Form

of In-

Price of

posed of (D)

(Month/Day/

ative

Secur-

of De-

direct

Deriv-

(Month/

(Instr. 3, 4 and 5)

Year)

Secur-

ities

rivative

Bene-

ative

Day/

ity

Bene-

Secur-

ficial

Security

Year)

ficially

ity:

Own-

(Instr.

Owned

Direct

ership

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)

Common Stock

$22.0000

08/27/02

M

15,455

*

05/28/03

Common Stock

15,455

0

D

Explanation of Responses:

*    The option vested in three equal annual installments beginning on April 28, 1994.

**	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	September 9, 2002 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 Donald P. de Brier

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