# EDGAR Filing Document

**Accession Number:** 0001067983
**File Stem:** 0001193125-23-036976
**Filing Date:** 2023-2
**Character Count:** 35407
**Document Hash:** 0c5e0aac2bf8288cf2c938bc09c7ab94
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-036976.hdr.sgml**: 20230214

**ACCESSION NUMBER**: 0001193125-23-036976

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230214

**DATE AS OF CHANGE**: 20230214

**GROUP MEMBERS**: BERKSHIRE HATHAWAY LIFE INSURANCE CO OF NEBRASKA

**GROUP MEMBERS**: BERKSHIRE HATHAWAY SPECIALTY INSURANCE CO

**GROUP MEMBERS**: BHG LIFE INSURANCE CO

**GROUP MEMBERS**: COLUMBIA INSURANCE CO

**GROUP MEMBERS**: GEICO CASUALTY CO

**GROUP MEMBERS**: GEICO CORP

**GROUP MEMBERS**: GEICO INDEMNITY CO

**GROUP MEMBERS**: GOVERNMENT EMPLOYEES INSURANCE CO

**GROUP MEMBERS**: NATIONAL INDEMNITY CO

**GROUP MEMBERS**: WARREN E. BUFFETT

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OCCIDENTAL PETROLEUM CORP /DE/
- **CENTRAL INDEX KEY:** 0000797468
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **IRS NUMBER:** 954035997
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-37605
- **FILM NUMBER:** 23622005

**BUSINESS ADDRESS:**
- **STREET 1:** 5 GREENWAY PLAZA
- **STREET 2:** SUITE 110
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77046
- **BUSINESS PHONE:** 7132157000

**MAIL ADDRESS:**
- **STREET 1:** 5 GREENWAY PLAZA
- **STREET 2:** SUITE 110
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77046
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BERKSHIRE HATHAWAY INC
- **CENTRAL INDEX KEY:** 0001067983
- **STANDARD INDUSTRIAL CLASSIFICATION:** FIRE, MARINE & CASUALTY INSURANCE [6331]
- **IRS NUMBER:** 470813844
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 3555 FARNAM STREET
- **CITY:** OMAHA
- **STATE:** NE
- **ZIP:** 68131
- **BUSINESS PHONE:** 4023461400

**MAIL ADDRESS:**
- **STREET 1:** 3555 FARNAM STREET
- **CITY:** OMAHA
- **STATE:** NE
- **ZIP:** 68131

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NBH INC
- **DATE OF NAME CHANGE:** 19980810

------

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**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, DC 20549** 

------

**SCHEDULE 13G** 

**(Rule 13d-102)** 

**INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT** 

**TO § 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED** 

**PURSUANT TO § 240.13d-2** 

**(Amendment No. 3)\*** 

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## OCCIDENTAL PETROLEUM CORPORATION
**(Name of Issuer)** 

**COMMON STOCK** 

**(Title of Class of Securities)** 

**674599105** 

**(CUSIP Number)** 

**December 31, 2022** 

**(Date of Event Which Requires Filing of this Statement)** 

------

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☒ Rule 13d-1 (b)

☐ Rule 13d-1 (c)

☐ Rule 13d-1 (d)

\* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 (the "Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes.)

------

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 2 of 17 Pages** |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Warren E. Buffett |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;United States Citizen |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>278,210,498.81 shares of Common Stock (83,858,848.81 of which represent shares underlying the Berkshire Warrants (as hereinafter defined)) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>278,210,498.81 shares of Common Stock (83,858,848.81 of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>278,210,498.81 shares of Common Stock (83,858,848.81 of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;28.0% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IN |

---

------

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 3 of 17 Pages** |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Berkshire Hathaway Inc. |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Delaware |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>278,210,498.81 shares of Common Stock (83,858,848.81 of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>278,210,498.81 shares of Common Stock (83,858,848.81 of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>278,210,498.81 shares of Common Stock (83,858,848.81 of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;28.0% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;HC, CO |

---

------

---

| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 4 of 17 Pages** |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;National Indemnity Company |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>267,602,354.44 shares of Common Stock (73,250,704.44 of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>267,602,354.44 shares of Common Stock (73,250,704.44 of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>267,602,354.44 shares of Common Stock (73,250,704.44 of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;27.0% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

---

------

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 5 of 17 Pages** |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Columbia Insurance Company |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>10,608,144.37 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>10,608,144.37 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>10,608,144.37 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;1.1% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

---

------

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 6 of 17 Pages** |

---

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;GEICO Corporation |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Delaware |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>38,910,505.84 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>38,910,505.84 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>38,910,505.84 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;3.9% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;HC, CO |

---

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 7 of 17 Pages** |

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Government Employees Insurance Company |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>27,254,125.86 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>27,254,125.86 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>27,254,125.86 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;2.7% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

---

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 8 of 17 Pages** |

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;GEICO Casualty Company |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>3,270,495.10 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>3,270,495.10 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>3,270,495.10 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;0.3% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

---

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 9 of 17 Pages** |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;GEICO Indemnity Company |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>8,385,884.88 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>8,385,884.88 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>8,385,884.88 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;0.8% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 10 of 17 Pages** |

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Berkshire Hathaway Specialty Insurance Company |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>1,677,176.98 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>1,677,176.98 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>1,677,176.98 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;0.2% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

---

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 11 of 17 Pages** |

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;Berkshire Hathaway Life Insurance Company of Nebraska |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>3,018,918.56 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>3,018,918.56 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>3,018,918.56 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;0.3% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

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| | | |
|:---|:---|:---|
| **CUSIP No. 674599105** | **13G** | **Page 12 of 17 Pages** |

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | &nbsp;&nbsp;&nbsp;&nbsp;NAME OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;BHG Life Insurance Company |
| &nbsp;&nbsp;&nbsp; 2 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> &nbsp;&nbsp;&nbsp;&nbsp;(a) ☒ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | &nbsp;&nbsp;&nbsp;&nbsp;SEC USE ONLY |
| &nbsp;&nbsp;&nbsp; 4 | &nbsp;&nbsp;&nbsp;&nbsp;CITIZENSHIP OR PLACE OF ORGANIZATION<br>&nbsp;&nbsp;&nbsp;&nbsp;State of Nebraska |

---

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED VOTING POWER<br>5,870,119.42 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | &nbsp;&nbsp;&nbsp;&nbsp;SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;NONE |
| &nbsp;&nbsp;&nbsp; NUMBER OF<br> SHARES<br> BENEFICIALLY <br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;SHARED DISPOSITIVE POWER<br>5,870,119.42 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; 9 | &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>5,870,119.42 shares of Common Stock (all of which represent shares underlying the Berkshire Warrants) |
| &nbsp;&nbsp;&nbsp;10 | &nbsp;&nbsp;&nbsp;&nbsp;CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ☐<br>&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. |
| &nbsp;&nbsp;&nbsp;11 | &nbsp;&nbsp;&nbsp;&nbsp;PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9<br>&nbsp;&nbsp;&nbsp;&nbsp;0.6% |
| &nbsp;&nbsp;&nbsp;12 | &nbsp;&nbsp;&nbsp;&nbsp;TYPE OF REPORTING PERSON<br>&nbsp;&nbsp;&nbsp;&nbsp;IC, CO |

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| | |
|:---|:---|
| **SCHEDULE 13G** | **Page 13 of 17 Pages** |

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The shares of Common Stock of Occidental Petroleum Corporation ("Occidental") reported in this Schedule 13G include warrants for an aggregate of 83,858,848.81 shares of Common Stock exercisable by certain of the Reporting Persons within 60 days (the "Berkshire Warrants"). All shares of Common Stock underlying the Berkshire Warrants are treated as outstanding for purposes of computing the percentage ownership of each of the Reporting Persons reported in this Schedule 13G. The Berkshire Warrants were issued on August 8, 2019 initially for 80,000,000 million shares of Common Stock at an exercise price of $62.50 per share, but on June 26, 2020, Occidental's Board of Directors declared a distribution to its common shareholders of warrants to purchase additional shares of Common Stock, which distribution resulted in an anti-dilution adjustment to the Berkshire Warrants that lowered the exercise price to $59.624 per share and increased the number of shares of Common Stock issuable on exercise of the Berkshire Warrants to 83,858,848.81. The Berkshire Warrants have not been exercised.

**Item 1.** 

**(a) Name of Issuer** 

Occidental Petroleum Corporation

**(b) Address of Issuer's Principal Executive Offices** 

5 Greenway Plaza, Houston, TX 77046

**Item 2(a). Name of Person Filing:** 

**Item 2(b). Address of Principal Business Office:** 

**Item 2(c). Citizenship:** 

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| | |
|:---|:---|
| Warren E. Buffett<br> 3555 Farnam Street<br> Omaha, Nebraska 68131<br> United States citizen | Berkshire Hathaway Inc.<br> 3555 Farnam Street<br> Omaha, Nebraska 68131<br> Delaware |
| National Indemnity Company<br> 1314 Douglas Street<br> Omaha, Nebraska 68102<br> Nebraska | GEICO Corporation<br> One GEICO Plaza<br> Washington, DC 20076<br> Delaware |
| BHG Life Insurance Company<br> 1314 Douglas Street<br> Omaha, Nebraska 68102<br> Nebraska | Government Employees Insurance Company<br> One GEICO Plaza<br> Washington, DC 20076<br> Nebraska |
| Columbia Insurance Company<br> 1314 Douglas Street<br> Omaha, Nebraska 68102<br> Nebraska | Berkshire Hathaway Life Insurance Company of Nebraska<br> 1314 Douglas Street<br> Omaha, NE 68102<br> Nebraska corporation |
| GEICO Casualty Company<br> One GEICO Plaza<br> Washington, DC 20076<br> Nebraska | Berkshire Hathaway Specialty Insurance Company<br> 1314 Douglas Street<br> Omaha, NE 68102<br> Nebraska |

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**Page 14 of 17 Pages** 

**(d) Title of Class of Securities** 

Common Stock

**(e) CUSIP Number** 

674599105

**Item 3. If this statement is filed pursuant to § 240.13d-1(b), or 240.13d-2(b) or (c), check whether the person filing is a:** 

Warren E. Buffett (an individual who may be deemed to control Berkshire Hathaway Inc.), Berkshire Hathaway Inc. and GEICO Corporation are each a Parent Holding Company or Control Person, in accordance with § 240**.**13d-1(b)(1)(ii)(G).

National Indemnity Company, Columbia Insurance Company, Government Employees Insurance Company, GEICO Indemnity Company, Berkshire Hathaway Specialty Insurance Company, Berkshire Hathaway Life Insurance Company of Nebraska, GEICO Casualty Company and BHG Life Insurance Company are each an Insurance Company as defined in section 3(a)(19) of the Act. The Reporting Persons together are a group in accordance with **§** 240.13d-1(b)(i)(ii)(K).

**Item 4. Ownership** 

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

**(a) Amount beneficially owned** 

See the Cover Pages for each of the Reporting Persons.

**(b) Percent of class** 

See the Cover Pages for each of the Reporting Persons.

**(c) Number of shares as to which such person has:** 

(i) sole power to vote or to direct the vote

(ii) shared power to vote or to direct the vote

(iii) sole power to dispose or to direct the disposition of

(iv) shared power to dispose or to direct the disposition of

See the Cover Pages for each of the Reporting Persons**.** 

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**Page 15 of 17 Pages** 

**Item 5. Ownership of Five Percent or Less of a Class.** 

Not Applicable.

**Item 6. Ownership of More than Five Percent on Behalf of Another Person.** 

Not Applicable.

**Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.** 

See Exhibit A.

**Item 8. Identification and Classification of Members of the Group.** 

Not Applicable.

**Item 9. Notice of Dissolution of Group.** 

Not Applicable.

**Item 10. Certification.** 

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under §240.14a-11.

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**Page 16 of 17 Pages** 

**SIGNATURES** 

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated this 14th day of February, 2023

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| |
|:---|
| /s/ Warren E. Buffett |
| Warren E. Buffett |

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| | |
|:---|:---|
|  BERKSHIRE HATHAWAY INC. | BERKSHIRE HATHAWAY INC. |
|  By: | /s/ Warren E. Buffett |
|  | Warren E. Buffett |
|  | Chairman of the Board |

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**Page 17 of 17 Pages** 

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| | |
|:---|:---|
|  NATIONAL INDEMNITY COMPANY,<br> COLUMBIA INSURANCE COMPANY,<br> GEICO CORPORATION, GOVERNMENT<br> EMPLOYEES INSURANCE<br> CORPORATION, GEICO INDEMNITY<br> COMPANY, BERKSHIRE SPECIALTY<br> INSURANCE COMPANY, BERKSHIRE<br> HATHAWAY LIFE INSURANCE<br> COMPANY OF NEBRASKA, GEICO<br> CASUALTY COMPANY AND BHG LIFE<br> INSURANCE COMPANY | NATIONAL INDEMNITY COMPANY,<br> COLUMBIA INSURANCE COMPANY,<br> GEICO CORPORATION, GOVERNMENT<br> EMPLOYEES INSURANCE<br> CORPORATION, GEICO INDEMNITY<br> COMPANY, BERKSHIRE SPECIALTY<br> INSURANCE COMPANY, BERKSHIRE<br> HATHAWAY LIFE INSURANCE<br> COMPANY OF NEBRASKA, GEICO<br> CASUALTY COMPANY AND BHG LIFE<br> INSURANCE COMPANY |
|  By: | <br> /s/ WARREN E. BUFFETT |
|  | Warren E. Buffett |
|  | Attorney-in-Fact |

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