OXY

SEC source: 0001814606-26-000002 · wk-form4_1771628968.xml · nonDerivative · entry 1

Jackson Richard A. · CIK 0001814606 · Senior Vice President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 317,215

F1 · kind: Represents shares of common stock received upon the vesting of a performance stock unit award granted under the Issuer's Amended and Restated 2015 Long-Term Incentive Plan.

SEC source: 0000797468-26-000006 · wk-form4_1771628856.xml · nonDerivative · entry 2

Hollub Vicki A. · CIK 0001588752 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,047,744

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

SEC source: 0000797468-26-000006 · wk-form4_1771628856.xml · nonDerivative · entry 1

Hollub Vicki A. · CIK 0001588752 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,071,009

F1 · kind: Represents shares of common stock received upon the vesting of a performance stock unit award granted under the Issuer's Amended and Restated 2015 Long-Term Incentive Plan.

F2 · balance_after: Includes 76 shares acquired between April 2025 and January 2026 through dividend reinvestment.

SEC source: 0000797468-26-000002 · wk-form4_1771628544.xml · nonDerivative · entry 2

Champion Christopher O · CIK 0001643753 · VP, CAO and Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,409

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

SEC source: 0000797468-26-000002 · wk-form4_1771628544.xml · nonDerivative · entry 1

Champion Christopher O · CIK 0001643753 · VP, CAO and Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 139,121

F1 · kind: Represents shares of common stock received upon the vesting of a performance stock unit award granted under the Issuer's Amended and Restated 2015 Long-Term Incentive Plan.

SEC source: 0001628280-25-057697 · wk-form4_1766008806.xml · nonDerivative · entry 1

KLESSE WILLIAM R · CIK 0001019718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 218,913

SEC source: 0000797468-25-000118 · wk-form4_1759532370.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 148,837

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

SEC source: 0000797468-25-000115 · wk-form4_1759532097.xml · nonDerivative · entry 1

Jackson Richard A. · CIK 0001814606 · Senior Vice President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 298,822

F1 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on September 30, 2026.

SEC source: 0000797468-25-000096 · wk-form4_1746828025.xml · nonDerivative · entry 1

GUTIERREZ CARLOS M · CIK 0001185943 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,261

F1 · kind: As reported on that certain Form 4 filed on behalf of the reporting person on May 20, 2021, the reporting person gifted 30,625 shares of common stock of the Issuer to a grantor retained annuity trust (the "GRAT") with an independent trustee on May 19, 2021 for tax and estate planning purposes. On May 9, 2025, in satisfaction of the GRAT's annuity obligation, the reporting person received 3,723 shares of the Issuer's common stock.

SEC source: 0000797468-25-000094 · wk-form4_1746656020.xml · nonDerivative · entry 2

BAILEY VICKY A · CIK 0001295122 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,979

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

SEC source: 0000797468-25-000094 · wk-form4_1746656020.xml · nonDerivative · entry 1

BAILEY VICKY A · CIK 0001295122 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,089

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

SEC source: 0000797468-25-000092 · wk-form4_1746655950.xml · nonDerivative · entry 2

GOULD ANDREW · CIK 0001194100 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,850

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

SEC source: 0000797468-25-000092 · wk-form4_1746655950.xml · nonDerivative · entry 1

GOULD ANDREW · CIK 0001194100 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,783

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

SEC source: 0000797468-25-000090 · wk-form4_1746655875.xml · nonDerivative · entry 2

KLESSE WILLIAM R · CIK 0001019718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 213,913

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

SEC source: 0000797468-25-000090 · wk-form4_1746655875.xml · nonDerivative · entry 1

KLESSE WILLIAM R · CIK 0001019718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 215,331

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

SEC source: 0000797468-25-000088 · wk-form4_1746655799.xml · nonDerivative · entry 1

GUTIERREZ CARLOS M · CIK 0001185943 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,538

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

SEC source: 0000797468-25-000086 · wk-form4_1746655721.xml · nonDerivative · entry 1

POLADIAN AVEDICK BARUYR · CIK 0001305254 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,426

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

SEC source: 0000797468-25-000084 · wk-form4_1746655645.xml · nonDerivative · entry 2

Robinson Kenneth B. · CIK 0001845372 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,865

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

SEC source: 0000797468-25-000084 · wk-form4_1746655645.xml · nonDerivative · entry 1

Robinson Kenneth B. · CIK 0001845372 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,283

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

F2 · balance_after: Includes 124 shares acquired between July 2024 and April 2025 through dividend reinvestment.

SEC source: 0000797468-25-000080 · wk-form4_1746655484.xml · nonDerivative · entry 2

MOORE JACK B · CIK 0001235129 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,020

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

SEC source: 0000797468-25-000080 · wk-form4_1746655484.xml · nonDerivative · entry 1

MOORE JACK B · CIK 0001235129 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,316

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

F2 · balance_after: Includes 828 shares acquired between July 2024 and April 2025 through dividend reinvestment.

SEC source: 0000797468-25-000078 · wk-form4_1746655399.xml · nonDerivative · entry 1

ONeill Claire · CIK 0001962857 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,473

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

F2 · balance_after: Includes 49 shares acquired between July 2024 and April 2025 through dividend reinvestment.

SEC source: 0000797468-25-000082 · wk-form4_1746655562.xml · nonDerivative · entry 1

Shearer Bob · CIK 0001374803 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,729

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

SEC source: 0000797468-25-000064 · wk-form4_1743642903.xml · derivative · entry 2

POLADIAN AVEDICK BARUYR · CIK 0001305254 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,327 shares

Expires 2027-08-03

F1 · shares: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 9,327 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000064 · wk-form4_1743642903.xml · nonDerivative · entry 1

POLADIAN AVEDICK BARUYR · CIK 0001305254 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,984

F1 · acquired: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 9,327 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000058 · wk-form4_1743642619.xml · derivative · entry 3

Mathew Sunil · CIK 0001977262 · SVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,491 shares

Expires 2027-08-03

F1 · shares: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 4,491 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000058 · wk-form4_1743642619.xml · nonDerivative · entry 1

Mathew Sunil · CIK 0001977262 · SVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 212,095

F1 · acquired: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 4,491 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000062 · wk-form4_1743642723.xml · derivative · entry 2

GOULD ANDREW · CIK 0001194100 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,351 shares

Expires 2027-08-03

F1 · shares: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 2,351 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000062 · wk-form4_1743642723.xml · nonDerivative · entry 1

GOULD ANDREW · CIK 0001194100 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,341

F1 · acquired: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 2,351 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000060 · wk-form4_1743642673.xml · derivative · entry 2

KLESSE WILLIAM R · CIK 0001019718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,860

Underlying: Common Stock · 25,900 shares

Expires 2027-08-03

F1 · shares: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 25,900 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000060 · wk-form4_1743642673.xml · nonDerivative · entry 1

KLESSE WILLIAM R · CIK 0001019718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 208,889

F1 · acquired: The Issuer offered holders of the Issuer's outstanding publicly traded warrants, each representing the right to purchase one share of the Issuer's common stock, par value $0.20 per share, at an exercise price of $22.00 (the "Warrants"), the opportunity to exercise the Warrants at a temporarily reduced exercise price of $21.30 per Warrant (the "Offer"). The Offer expired on March 31, 2025, at which time the reporting person exercised 25,900 Warrants at the temporarily reduced price in connection with the Offer.

SEC source: 0000797468-25-000045 · wk-form4_1741133158.xml · nonDerivative · entry 2

Simmons Jeff F · CIK 0001977241 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 318,047

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000043 · wk-form4_1741133116.xml · nonDerivative · entry 2

Peterson Robert L · CIK 0001808899 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 287,910

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000039 · wk-form4_1741133023.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,161

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000041 · wk-form4_1741133067.xml · nonDerivative · entry 2

Mathew Sunil · CIK 0001977262 · SVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 207,604

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000037 · wk-form4_1741132974.xml · nonDerivative · entry 2

Jackson Richard A. · CIK 0001814606 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 267,388

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000035 · wk-form4_1741132926.xml · nonDerivative · entry 2

Hollub Vicki A. · CIK 0001588752 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,011,812

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000033 · wk-form4_1741132875.xml · nonDerivative · entry 2

Dillon Kenneth · CIK 0001777012 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 343,320

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000031 · wk-form4_1741132821.xml · nonDerivative · entry 2

Champion Christopher O · CIK 0001643753 · VP, CAO and Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,924

F2 · kind: Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2026.

SEC source: 0000797468-25-000045 · wk-form4_1741133158.xml · nonDerivative · entry 1

Simmons Jeff F · CIK 0001977241 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,838

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

SEC source: 0000797468-25-000043 · wk-form4_1741133116.xml · nonDerivative · entry 1

Peterson Robert L · CIK 0001808899 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 261,701

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

SEC source: 0000797468-25-000039 · wk-form4_1741133023.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,925

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

SEC source: 0000797468-25-000041 · wk-form4_1741133067.xml · nonDerivative · entry 1

Mathew Sunil · CIK 0001977262 · SVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,576

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

SEC source: 0000797468-25-000037 · wk-form4_1741132974.xml · nonDerivative · entry 1

Jackson Richard A. · CIK 0001814606 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 237,084

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

SEC source: 0000797468-25-000035 · wk-form4_1741132926.xml · nonDerivative · entry 1

Hollub Vicki A. · CIK 0001588752 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 911,484

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

SEC source: 0000797468-25-000033 · wk-form4_1741132875.xml · nonDerivative · entry 1

Dillon Kenneth · CIK 0001777012 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 313,016

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

SEC source: 0000797468-25-000031 · wk-form4_1741132821.xml · nonDerivative · entry 1

Champion Christopher O · CIK 0001643753 · VP, CAO and Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,181

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

SEC source: 0000797468-25-000022 · wk-form4_1739575118.xml · nonDerivative · entry 3

Hollub Vicki A. · CIK 0001588752 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 938,900

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

SEC source: 0000797468-25-000022 · wk-form4_1739575118.xml · nonDerivative · entry 2

Hollub Vicki A. · CIK 0001588752 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,007,546

F1 · kind: Represents shares of common stock received upon the vesting of a performance stock unit award granted under the Issuer's Amended and Restated 2015 Long-Term Incentive Plan.

SEC source: 0000797468-25-000022 · wk-form4_1739575118.xml · nonDerivative · entry 1

Hollub Vicki A. · CIK 0001588752 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 938,557

F1 · kind: Represents shares of common stock received upon the vesting of a performance stock unit award granted under the Issuer's Amended and Restated 2015 Long-Term Incentive Plan.

F2 · balance_after: Includes 49 shares acquired between April 2024 and January 2025 through dividend reinvestment.