STOCK-BASED INCENTIVE PLANS (Tables)

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of changes in occidental's unvested cash- and tock- settled RSUs

A summary of changes in the Company’s unvested cash- and stock-settled RSUs for 2025 is presented below:

	Cash-Settled			Stock-Settled
thousands, except fair values	RSUs			RSUs
Unvested as of January 1	398	$	58.00	7,119	$	57.63
Granted	255	$	46.44	4,891	$	48.85
Vested	(170)	$	56.47	(3,551)	$	54.56
Forfeitures	(45)	$	55.30	(327)	$	53.44
Unvested as of December 31	438	$	52.15	8,132	$	53.86

Schedule of grant-date assumptions used in the monte carlo simulation models for the estimated payout level of TSRIs

The grant-date assumptions used in the Monte Carlo simulation models for the estimated payout level of TSRIs were as follows:

	TSRIs
	2025		2024		2023
Assumptions used:
Risk-free interest rate	4.0%		4.3%		4.6%
Volatility factor	32%		45%		64%
Expected life, years	2.83		2.83		2.84
Grant-date fair value of underlying Occidental common stock	$	48.84	$	61.36	$	59.71

Schedule of the changes of awards

A summary of changes in the Company’s unvested TSRIs in 2025 is presented below:

	TSRIs
thousands, except fair values	Awards	Weighted-Average Grant-Date Fair Value of Occidental Stock
Unvested as of January 1	1,251		$	55.08
Granted	391		$	48.84
Vested (a)	(388)		$	42.98
Forfeitures	(3)		$	48.84
Unvested as of December 31	1,251		$	56.90

(a)Presented at the target payouts. In 2025, the weighted-average payout at vesting was 176% of the target, resulting in the issuance of approximately 683,358 shares of Occidental common stock.

A summary of changes in the Company’s unvested CROCEI in 2025 is presented below:

	CROCEI
thousands, except fair values	Awards	Weighted-Average Grant-Date Fair Value of Occidental Stock
Unvested as of January 1	447		$	54.55
Granted	391		$	48.84
Vested (a)	(156)		$	42.98
Forfeited	(3)		48.84
Unvested as of December 31	679		$	53.94

(a)     Presented at the target payouts. In 2025, the weighted-average payout at vesting was 200% of the target, resulting in the issuance of approximately 312,000 shares of Occidental common stock.

Schedule of stock options

A summary of the Company’s outstanding stock options as of December 31, 2025 and changes during the year ended December 31, 2025 is presented below:

	Vested			Unvested
thousands, except fair values	Options	Weighted Average Strike Price		Options	Weighted Average Strike Price
January 1	2,305	$	37.89	83	$	42.98
Vested	83	$	42.98	(83)	$	42.98
December 31	2,388	$	38.07	—	$	—