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NYSE · USD

OXY

OCCIDENTAL PETROLEUM CORP /DE/

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Tapewire entity
2999
SEC CIK
0000797468
Parsed reports
466

Last 12 months

Inside the activity.

2 purchase rows · 0 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202510
Jan 202600
Feb 202600
Mar 202600
Apr 202600
May 202600
Jun 202610
Jul 202600
Aug 202600
Sep 202600
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
February 05, 2024 Filed Feb 6, 2024 02:30 UTC PurchaseCommon Stock 1,240,989 $56.75 $70,431,834.30
Disclosure

SEC source: 0000950170-24-011524 · ownership.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 247,853,290

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.0750 to $57.0749. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 7 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
February 02, 2024 Filed Feb 6, 2024 02:30 UTC PurchaseCommon Stock 1,246,920 $57.14 $71,252,500.18
Disclosure

SEC source: 0000950170-24-011524 · ownership.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 246,612,301

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.7329 to $57.5450. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
February 01, 2024 Filed Feb 6, 2024 02:30 UTC PurchaseCommon Stock 164,232 $57.98 $9,522,696.90
Disclosure

SEC source: 0000950170-24-011524 · ownership.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 245,365,381

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.9200 to $58.1100. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
February 01, 2024 Filed Feb 6, 2024 02:30 UTC PurchaseCommon Stock 1,485,345 $57.39 $85,243,652.48
Disclosure

SEC source: 0000950170-24-011524 · ownership.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 245,201,149

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.9200 to $57.9199. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 21, 2023 Filed Dec 22, 2023 00:20 UTC PurchaseCommon Stock 1,743,124 $60.26 $105,046,055.92
Disclosure

SEC source: 0000950170-23-072358 · ownership.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 243,715,804

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $60.0000 to $60.5400. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 7 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 20, 2023 Filed Dec 22, 2023 00:20 UTC PurchaseCommon Stock 1,812,508 $60.50 $109,663,984.03
Disclosure

SEC source: 0000950170-23-072358 · ownership.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 241,972,680

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $60.0800 to $61.0550. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 19, 2023 Filed Dec 22, 2023 00:20 UTC PurchaseCommon Stock 879,122 $60.16 $52,891,320.18
Disclosure

SEC source: 0000950170-23-072358 · ownership.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 240,160,172

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $59.8950 to $60.3300. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 19, 2023 Filed Dec 22, 2023 00:20 UTC PurchaseCommon Stock 747,861 $59.49 $44,491,522.25
Disclosure

SEC source: 0000950170-23-072358 · ownership.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 239,281,050

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.8950 to $59.8925. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 13, 2023 Filed Dec 14, 2023 01:04 UTC PurchaseCommon Stock 1,524,893 $57.05 $86,987,978.65
Disclosure

SEC source: 0000950170-23-070147 · ownership.xml · nonDerivative · entry 5

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 238,533,189

F8 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.6150 to $57.2700. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 8 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 13, 2023 Filed Dec 14, 2023 01:04 UTC PurchaseCommon Stock 1,675,906 $56.10 $94,022,851.55
Disclosure

SEC source: 0000950170-23-070147 · ownership.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 237,008,296

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $55.6150 to $56.6100. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 7 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 12, 2023 Filed Dec 14, 2023 01:04 UTC PurchaseCommon Stock 105,557 $56.47 $5,960,349.89
Disclosure

SEC source: 0000950170-23-070147 · ownership.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 235,332,390

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.1250 to $56.6800. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 12, 2023 Filed Dec 14, 2023 01:04 UTC PurchaseCommon Stock 5,026,004 $55.58 $279,356,359.53
Disclosure

SEC source: 0000950170-23-070147 · ownership.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 235,226,833

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $55.1250 to $56.1200. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
December 11, 2023 Filed Dec 14, 2023 01:04 UTC PurchaseCommon Stock 2,149,802 $56.91 $122,346,736.68
Disclosure

SEC source: 0000950170-23-070147 · ownership.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 230,200,829

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.3100 to $57.0800. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
October 25, 2023 Filed Oct 25, 2023 23:28 UTC PurchaseCommon Stock 1,040,067 $63.05 $65,574,456.24
Disclosure

SEC source: 0000950170-23-055334 · ownership.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 228,051,027

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $62.6200 to $63.3050. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
October 24, 2023 Filed Oct 25, 2023 23:28 UTC PurchaseCommon Stock 1,195,400 $62.69 $74,935,203.02
Disclosure

SEC source: 0000950170-23-055334 · ownership.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 227,010,960

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $62.3200 to $63.2900. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
October 23, 2023 Filed Oct 25, 2023 23:28 UTC PurchaseCommon Stock 1,686,368 $62.80 $105,898,682.66
Disclosure

SEC source: 0000950170-23-055334 · ownership.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 225,815,560

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $62.5500 to $63.0750. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
October 02, 2023 Filed Oct 4, 2023 22:00 UTC
Kerrigan Sylvia JSVP & Chief Legal Officer
Tax withholdingCommon Stock 3,595 $62.30 $223,968.50
Disclosure

SEC source: 0000797468-23-000084 · wk-form4_1696456834.xml · nonDerivative · entry 1

Kerrigan Sylvia J · CIK 0001474828 · SVP & Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,536

F1 · kind: Represents shares of common stock withheld to satisfy tax withholding obligations upon the vesting of previously reported restricted stock units.

Read SEC document
June 28, 2023 Filed Jun 29, 2023 00:46 UTC PurchaseCommon Stock 260,769 $57.02 $14,869,048.38
Disclosure

SEC source: 0000950170-23-030512 · ownership.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 224,129,192

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.7700 to $57.2000. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
June 27, 2023 Filed Jun 29, 2023 00:46 UTC PurchaseCommon Stock 1,239,180 $57.17 $70,843,177.09
Disclosure

SEC source: 0000950170-23-030512 · ownership.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 223,868,423

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.9000 to $57.2500. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
June 26, 2023 Filed Jun 29, 2023 00:46 UTC PurchaseCommon Stock 638,301 $57.01 $36,392,284.70
Disclosure

SEC source: 0000950170-23-030512 · ownership.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 222,629,243

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.4900 to $57.2500. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 30, 2023 Filed May 30, 2023 23:11 UTC PurchaseCommon Stock 2,203,753 $58.30 $128,484,529.66
Disclosure

SEC source: 0000899243-23-014128 · doc4.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 221,990,942

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.9000 to $58.7050. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 26, 2023 Filed May 30, 2023 23:11 UTC PurchaseCommon Stock 1,500,306 $58.85 $88,299,759.48
Disclosure

SEC source: 0000899243-23-014128 · doc4.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 219,787,189

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.5600 to $59.0000. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 25, 2023 Filed May 30, 2023 23:11 UTC PurchaseCommon Stock 956,750 $58.75 $56,211,932.75
Disclosure

SEC source: 0000899243-23-014128 · doc4.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 218,286,883

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.4900 to $59.0000. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 18, 2023 Filed May 18, 2023 22:27 UTC PurchaseCommon Stock 1,217,945 $58.11 $70,780,142.91
Disclosure

SEC source: 0000899243-23-013283 · doc4.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 217,330,133

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.7750 to $58.2500. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 17, 2023 Filed May 18, 2023 22:27 UTC PurchaseCommon Stock 614,020 $58.66 $36,018,228.99
Disclosure

SEC source: 0000899243-23-013283 · doc4.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 216,112,188

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.1750 to $58.9200. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 16, 2023 Filed May 18, 2023 22:27 UTC PurchaseCommon Stock 1,625,257 $58.22 $94,622,950.12
Disclosure

SEC source: 0000899243-23-013283 · doc4.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 215,498,168

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.0100 to $58.7500. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 15, 2023 Filed May 16, 2023 01:26 UTC PurchaseCommon Stock 993,494 $58.46 $58,080,752.08
Disclosure

SEC source: 0000899243-23-013028 · doc4.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 213,872,911

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.1600 to $58.5200. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 7 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 12, 2023 Filed May 16, 2023 01:26 UTC PurchaseCommon Stock 370,062 $57.94 $21,440,763.17
Disclosure

SEC source: 0000899243-23-013028 · doc4.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 212,879,417

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.7500 to $58.0000. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 11, 2023 Filed May 16, 2023 01:26 UTC PurchaseCommon Stock 645,247 $57.82 $37,308,762.26
Disclosure

SEC source: 0000899243-23-013028 · doc4.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 212,509,355

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.3350 to $57.9300. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 11, 2023 Filed May 16, 2023 01:26 UTC PurchaseCommon Stock 156,989 $56.80 $8,916,598.43
Disclosure

SEC source: 0000899243-23-013028 · doc4.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 211,864,108

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.3350 to $57.3300. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:47 UTC
MOORE JACK BDirector
Tax withholdingCommon Stock 1,251 $58.96 $73,758.96
Disclosure

SEC source: 0000797468-23-000050 · wf-form4_168375882892303.xml · nonDerivative · entry 2

MOORE JACK B · CIK 0001235129 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,362

F3 · kind: Represents shares of common stock withheld to satisfy tax withholding obligations.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:47 UTC
MOORE JACK BDirector
GrantCommon Stock 5,682 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000050 · wf-form4_168375882892303.xml · nonDerivative · entry 1

MOORE JACK B · CIK 0001235129 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,613

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

F2 · balance_after: Includes 168 shares acquired between January 2023 and April 2023 through dividend reinvestment.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:47 UTC GrantCommon Stock 3,817 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000049 · wf-form4_168375880991664.xml · nonDerivative · entry 1

POLADIAN AVEDICK BARUYR · CIK 0001305254 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,774

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:46 UTC Tax withholdingCommon Stock 1,018 $58.96 $60,021.28
Disclosure

SEC source: 0000797468-23-000048 · wf-form4_168375879199681.xml · nonDerivative · entry 2

ONeill Claire · CIK 0001962857 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,099

F2 · kind: Represents shares of common stock withheld to satisfy tax withholding obligations.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:46 UTC GrantCommon Stock 3,393 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000048 · wf-form4_168375879199681.xml · nonDerivative · entry 1

ONeill Claire · CIK 0001962857 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,117

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:46 UTC
GOULD ANDREWDirector
Tax withholdingCommon Stock 840 $58.96 $49,526.40
Disclosure

SEC source: 0000797468-23-000047 · wf-form4_168375876707405.xml · nonDerivative · entry 2

GOULD ANDREW · CIK 0001194100 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,272

F2 · kind: Represents shares of common stock withheld to satisfy tax withholding obligations.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:46 UTC
GOULD ANDREWDirector
GrantCommon Stock 3,817 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000047 · wf-form4_168375876707405.xml · nonDerivative · entry 1

GOULD ANDREW · CIK 0001194100 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,112

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:46 UTC GrantCommon Stock 3,393 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000046 · wf-form4_168375875289678.xml · nonDerivative · entry 1

GUTIERREZ CARLOS M · CIK 0001185943 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,390

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:45 UTC Tax withholdingCommon Stock 1,112 $58.96 $65,563.52
Disclosure

SEC source: 0000797468-23-000045 · wf-form4_168375873796136.xml · nonDerivative · entry 2

BAILEY VICKY A · CIK 0001295122 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,297

F2 · kind: Represents shares of common stock withheld to satisfy tax withholding obligations.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:45 UTC GrantCommon Stock 3,393 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000045 · wf-form4_168375873796136.xml · nonDerivative · entry 1

BAILEY VICKY A · CIK 0001295122 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,409

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:45 UTC GrantCommon Stock 3,393 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000044 · wf-form4_168375872241356.xml · nonDerivative · entry 1

Robinson Kenneth B. · CIK 0001845372 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,943

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

F2 · balance_after: Includes 1 share acquired in April 2023 through dividend reinvestment.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:45 UTC Tax withholdingCommon Stock 840 $58.96 $49,526.40
Disclosure

SEC source: 0000797468-23-000043 · wf-form4_168375870651670.xml · nonDerivative · entry 2

KLESSE WILLIAM R · CIK 0001019718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,961

F2 · kind: Represents shares of common stock withheld to satisfy tax withholding obligations.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:45 UTC GrantCommon Stock 3,817 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000043 · wf-form4_168375870651670.xml · nonDerivative · entry 1

KLESSE WILLIAM R · CIK 0001019718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,801

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

Read SEC document
May 08, 2023 Filed May 10, 2023 22:40 UTC
Shearer BobDirector
GrantCommon Stock 3,817 $0.00 $0.00
Disclosure

SEC source: 0000797468-23-000042 · wf-form4_168375842080183.xml · nonDerivative · entry 1

Shearer Bob · CIK 0001374803 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,048

F1 · kind: Award of common stock under Occidental Petroleum Corporation's Amended and Restated 2015 Long-Term Incentive Plan.

Read SEC document
March 27, 2023 Filed Mar 27, 2023 22:45 UTC PurchaseCommon Stock 1,242,725 $59.63 $74,098,969.40
Disclosure

SEC source: 0000899243-23-009754 · doc4.xml · nonDerivative · entry 4

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 211,707,119

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $59.2600 to $59.8600. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 7 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
March 27, 2023 Filed Mar 27, 2023 22:45 UTC PurchaseCommon Stock 546,804 $58.61 $32,050,314.98
Disclosure

SEC source: 0000899243-23-009754 · doc4.xml · nonDerivative · entry 3

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 210,464,394

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.2250 to $59.2200. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 6 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
March 23, 2023 Filed Mar 27, 2023 22:45 UTC PurchaseCommon Stock 778,066 $59.16 $46,031,940.69
Disclosure

SEC source: 0000899243-23-009754 · doc4.xml · nonDerivative · entry 2

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 209,917,590

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.7100 to $59.5400. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 5 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
March 23, 2023 Filed Mar 27, 2023 22:45 UTC PurchaseCommon Stock 1,099,119 $58.29 $64,063,469.86
Disclosure

SEC source: 0000899243-23-009754 · doc4.xml · nonDerivative · entry 1

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 209,139,524

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.7050 to $58.7050. The Reporting Persons undertake to provide Occidental Petroleum Corporation ("Occidental"), any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 1 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
March 15, 2023 Filed Mar 16, 2023 00:01 UTC PurchaseCommon Stock 110,216 $57.15 $6,299,241.18
Disclosure

SEC source: 0000899243-23-008649 · doc4.xml · nonDerivative · entry 8

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 208,040,405

F11 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.0600 to $57.2950. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 11 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document
March 15, 2023 Filed Mar 16, 2023 00:01 UTC PurchaseCommon Stock 1,407,785 $56.66 $79,770,870.02
Disclosure

SEC source: 0000899243-23-008649 · doc4.xml · nonDerivative · entry 7

BERKSHIRE HATHAWAY INC · CIK 0001067983 · 10% owner

BUFFETT WARREN E · CIK 0000315090 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 207,930,189

F10 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.0600 to $57.0550. The Reporting Persons undertake to provide Occidental, any security holder of Occidental, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote 10 to this Form 4.

F2 · ownership.nature: The shares of the issuer's common stock reported on this form are held by Berkshire Hathaway Inc. ("Berkshire") indirectly through its subsidiary, National Indemnity Company.

F3 · ownership.nature: As Berkshire is in the chain of ownership of each subsidiary listed, it may be deemed presently to both beneficially own and have a pecuniary interest in all shares and derivative securities, as applicable, presently directly owned by such subsidiaries. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares and derivative securities, as applicable, presently owned by each of these subsidiaries. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. In addition, in order to avoid double counting, all shares and derivative securities, as applicable, reported as being owned by each subsidiary listed only reflect shares or derivative securities, as applicable, that are owned directly by such subsidiary,

F4 · ownership.nature: (Continued from footnote 3) and do not reflect any shares that such subsidiary may be deemed to beneficially own by virtue of ownership or control of any other subsidiary otherwise reported on this form.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.