OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class: Equity / COMMON STOCK
Symbol: OXY on NYSE
Shares outstanding: 1,066,829,888
Price per share: $41.12
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares: 760,613,083
Total reported value: $35,934,029,649
% of total 13F portfolios: 0.02%
Share change: +10,110,757
Value change: +$491,034,040
Number of holders: 1,130
Price from insider filings: $41.12

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) based on Schedule 13D/G filings

Filer	Ownership	Holdings Value	Nb Shares	Reporting Name	Report Period
BERKSHIRE HATHAWAY INC	33%	$16,350,757,610	348,853,373	Warren E. Buffett	30 Jun 2025
DODGE & COX	8.8%	$3,173,897,980	84,255,322	Dodge & Cox	31 Dec 2024
VANGUARD GROUP INC	8.5%	$3,022,301,205	80,230,985	The Vanguard Group	31 Mar 2025

As of 30 Sep 2025, 1,130 institutional investors reported holding 760,613,083 shares of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY). This represents 71% of the company’s total 1,066,829,888 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) together control 61% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution	Ownership %	Shares Held	Share Change %	Portfolio %	Holdings Value
Berkshire Hathaway Inc	25%	264,941,431	0%	4.7%	$12,518,482,615
VANGUARD GROUP INC	8.4%	89,201,540	+0.79%	0.06%	$4,214,772,766
Dodge & Cox	7.5%	79,883,371	-0.46%	2%	$3,774,489,280
BlackRock, Inc.	4.6%	49,435,029	+3.4%	0.04%	$2,335,805,108
STATE STREET CORP	3.6%	38,710,895	-0.85%	0.06%	$1,838,304,916
GEODE CAPITAL MANAGEMENT, LLC	1.8%	18,678,713	+3.3%	0.06%	$878,947,153
H&H International Investment, LLC	1.3%	13,556,100	0%	4.4%	$640,525,725
MORGAN STANLEY	1.2%	13,251,710	+25%	0.04%	$626,143,330
DIMENSIONAL FUND ADVISORS LP	0.82%	8,718,939	+12%	0.09%	$412,044,724
Pacer Advisors, Inc.	0.66%	6,992,961	-6.6%	0.85%	$330,417,407
NORTHERN TRUST CORP	0.65%	6,963,328	-1.8%	0.04%	$329,017,249
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN	0.57%	6,050,418	0%	14%	$285,942,755
BANK OF AMERICA CORP /DE/	0.53%	5,685,339	-0.67%	0.02%	$268,632,289
Invesco Ltd.	0.53%	5,658,899	+0.44%	0.04%	$267,382,973
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.49%	5,205,640	+5.1%	0.04%	$245,966,490
UBS Group AG	0.43%	4,557,168	-41%	0.04%	$215,326,189
Bank of New York Mellon Corp	0.4%	4,241,267	+0.36%	0.04%	$200,399,842
AMERICAN CENTURY COMPANIES INC	0.37%	3,905,711	+9.9%	0.09%	$184,544,999
Legal & General Group Plc	0.36%	3,801,441	+5.9%	0.04%	$179,618,092
Smead Capital Management, Inc.	0.35%	3,787,043	-7%	3.5%	$178,937,791
Adams Asset Advisors, LLC	0.33%	3,532,753	0%	22%	$166,922,579
GOLDMAN SACHS GROUP INC	0.33%	3,513,057	-0.16%	0.02%	$165,991,943
SCHARF INVESTMENTS, LLC	0.32%	3,439,635	-1.2%	4.1%	$162,523,025
FMR LLC	0.31%	3,309,593	-9.1%	0.01%	$156,378,276
BARCLAYS PLC	0.28%	2,989,610	+41%	0.05%	$141,259,073

Institutional Holders of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) across Reporting Periods

Period	Reported Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price (Median)	Investors
2025 Q4	11,969,059	$492,493,979	-$48,071,851			$41.12	186
2025 Q3	760,613,083	$35,934,029,649	+$491,034,040	$1,367,492,340	$1,357,494,371	$47.25	1,130
2025 Q2	750,189,545	$31,524,668,784	+$327,141,022	$1,414,069,240	$1,204,162,658	$42.01	1,117
2025 Q1	741,362,830	$36,578,778,842	+$1,143,056,133	$1,441,254,740	$1,275,779,341	$49.36	1,176
2024 Q4	717,790,106	$35,480,256,200	-$205,601,951	$1,657,919,612	$1,801,354,229	$49.41	1,179
2024 Q3	719,774,765	$37,115,260,501	+$122,319,357	$1,908,052,614	$1,183,022,698	$51.54	1,193
2024 Q2	714,193,249	$45,019,353,101	+$180,284,657	$1,890,704,604	$1,463,108,962	$63.03	1,201
2024 Q1	712,271,638	$46,292,645,219	+$933,233,002	$2,382,483,408	$1,920,726,392	$64.99	1,226
2023 Q4	1,316,681	$78,620,860	+$9,712,692			$59.71	16
2023 Q3	689,015,639	$44,708,172,726	+$321,818,507	$1,913,682,822	$1,775,459,362	$64.88	1,131
2023 Q2	685,714,605	$40,335,692,144	-$1,010,906,040	$1,710,491,639	$1,379,805,788	$58.80	1,120
2023 Q1	692,351,924	$43,237,577,178	-$691,264,087	$1,646,540,725	$1,585,220,142	$62.43	1,125
2022 Q4	713,168,038	$44,931,902,044	+$26,847,090	$2,201,560,526	$1,714,676,756	$62.99	1,122
2022 Q3	661,643,863	$40,704,280,286	-$928,098,770	$1,541,931,850	$1,864,264,941	$61.45	1,057
2022 Q2	677,977,451	$39,890,919,733	-$378,988,250	$1,246,079,704	$1,812,923,160	$58.88	1,012
2022 Q1	691,217,048	$39,228,229,439	+$4,948,862,752	$1,661,548,746	$2,652,764,670	$56.74	938
2021 Q4	617,394,520	$17,911,192,387	+$615,426,012	$593,262,866	$801,340,625	$28.99	758
2021 Q3	660,621,222	$19,540,566,292	+$270,198,263	$559,385,784	$948,828,006	$29.58	725
2021 Q2	655,629,253	$20,506,099,379	+$150,640,406	$572,222,272	$860,769,466	$31.27	721
2021 Q1	653,966,369	$17,395,339,835	+$488,326,293	$399,762,778	$619,734,122	$26.62	691
2020 Q4	638,027,657	$11,054,237,352	+$165,972,463	$381,355,009	$587,395,105	$17.31	643
2020 Q3	618,504,224	$6,191,291,629	-$306,939,385	$236,829,155	$177,804,717	$10.01	629
2020 Q2	638,123,479	$11,668,533,146	-$700,621,927	$484,822,156	$443,825,980	$18.30	684
2020 Q1	674,624,543	$7,851,965,959	-$920,348,449	$229,842,042	$243,551,000	$11.58	742
2019 Q4	701,366,314	$28,940,786,510	-$403,383,708	$895,497,000	$761,330,000	$41.21	1,017
2019 Q3	704,568,377	$31,358,740,914	+$2,873,577,473	$1,027,642,000	$714,238,000	$44.47	1,054
2019 Q2	645,134,743	$32,449,993,353	+$1,902,347,383	$689,463,000	$662,725,000	$50.28	1,033
2019 Q1	615,623,433	$40,768,869,994	-$854,708,310	$155,854,000	$249,983,000	$66.20	1,105
2018 Q4	629,704,964	$38,664,949,949	+$397,887,858	$188,155,000	$329,331,000	$61.38	1,084
2018 Q3	616,333,763	$50,622,705,723	+$207,549,022	$320,144,000	$744,385,000	$82.17	1,134
2018 Q2	620,999,466	$51,954,657,956	+$240,613,579	$318,373,001	$967,555,000	$83.68	1,162
2018 Q1	627,270,565	$40,758,702,120	-$426,769,024	$440,247,941	$329,884,801	$64.96	1,081
2017 Q4	622,800,216	$45,849,649,793	+$1,075,675,760	$583,095,536	$305,448,174	$73.66	1,061
2017 Q3	620,880,586	$39,888,915,440	-$30,112,528	$527,713,007	$303,899,030	$64.21	974
2017 Q2	564,538,696	$33,795,264,514	-$118,207,992	$424,083,060	$387,827,924	$59.87	957
2017 Q1	568,356,617	$36,020,066,704	-$55,293,061	$301,568,054	$291,588,028	$63.36	1,014
2016 Q4	626,625,877	$44,620,365,763	-$151,514,256	$397,176,019	$640,350,002	$71.23	1,064
2016 Q3	624,871,324	$45,543,389,285	+$270,062,458	$317,765,000	$804,377,000	$72.92	1,022
2016 Q2	617,635,284	$46,667,029,001	+$514,472,667	$285,858,000	$677,593,000	$75.56	1,033
2016 Q1	611,734,569	$41,856,967,954	-$144,180,934	$175,930,000	$362,422,000	$68.43	1,023
2015 Q4	613,149,698	$41,451,261,172	-$522,165,084	$352,598,000	$690,352,000	$67.61	1,023
2015 Q3	625,727,802	$41,392,704,525	+$888,506,337	$387,841,000	$559,479,000	$66.15	989
2015 Q2	607,819,229	$47,259,329,654	+$108,795,645	$454,342,000	$1,016,578,000	$77.77	1,024
2015 Q1	614,254,959	$44,868,696,021	-$410,879,640	$342,909,000	$786,310,000	$73.00	1,046
2014 Q4	621,315,152	$50,078,939,255	+$24,116,418	$662,302,000	$2,270,651,000	$80.61	1,068
2014 Q3	616,820,665	$59,303,701,579	-$467,810,930	$872,008,000	$3,312,538,000	$96.15	1,112
2014 Q2	621,334,308	$63,753,874,375	-$696,891,060	$793,051,000	$2,088,631,000	$102.63	1,145
2014 Q1	625,808,349	$59,632,347,184	-$321,246,238	$596,575,000	$958,892,000	$95.29	1,089