There is a long list of 1245 institutional holders of Occidental Petroleum within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of Occidental Petroleum by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-Occidental Petroleum table below, the initial column indicates the name of each top institutional holder of Occidental Petroleum, with a link to that fund's top holdings. The next columns indicate the amount of Occidental Petroleum stock held by each of the institutional holders of Occidental Petroleum, followed by the Occidental Petroleum position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Berkshire Hathaway Inc	243,715,804	$14,552,271	12/31/2023
OXY	243,715,804	$14,552,271	12/31/2023
Dodge & Cox		$5,391,791	12/31/2023
OXY	80,992,508	$4,836,063	12/31/2023
OXY.WT	14,275,070	$555,728	12/31/2023
Vanguard Group Inc.	56,822,431	$3,392,867	12/31/2023
OXY	56,822,431	$3,392,867	12/31/2023
State Street Corp	40,115,159	$2,402,711	12/31/2023
OXY	40,115,159	$2,402,711	12/31/2023
BlackRock Inc.		$2,395,625	12/31/2023
OXY	40,113,483	$2,395,176	12/31/2023
OXY.WT	11,537	$449	12/31/2023
FMR LLC		$1,304,087	12/31/2023
OXY	21,739,668	$1,298,076	12/31/2023
OXY.WT	154,393	$6,011	12/31/2023
Bank of New York Mellon Corp	12,660,967	$755,986	12/31/2023
OXY	12,660,967	$755,986	12/31/2023
Geode Capital Management LLC	12,571,844	$748,334	12/31/2023
OXY	12,571,844	$748,334	12/31/2023
Icahn Carl C		$641,778	12/31/2023
OXY.WT	16,485,432	$641,778	12/31/2023
Morgan Stanley		$565,363	12/31/2023
OXY	9,302,707	$555,465	12/31/2023
OXY.WT	254,246	$9,898	12/31/2023
Dimensional Fund Advisors LP	7,391,465	$441,367	12/31/2023
OXY	7,391,465	$441,367	12/31/2023
Northern Trust Corp		$435,438	12/31/2023
OXY	7,286,894	$435,100	12/31/2023
OXY.WT	8,673	$338	12/31/2023
Smead Capital Management Inc.		$371,091	12/31/2023
OXY	6,012,879	$359,029	12/31/2023
OXY.WT	309,850	$12,062	12/31/2023
Fairfax Financial Holdings Ltd Can	6,020,418	$359,419	12/31/2023
OXY	6,020,418	$359,419	12/31/2023
Bank of America Corp DE		$358,543	12/31/2023
OXY	6,400,171	$382,154	12/31/2023
Put	2,607,400	$155,688	12/31/2023
Call	2,037,800	$121,677	12/31/2023
OXY.WT	267,157	$10,400	12/31/2023
Pacer Advisors Inc.	5,995,258	$357,977	12/31/2023
OXY	5,995,258	$357,977	12/31/2023
Legal & General Group Plc		$311,429	12/31/2023
OXY	5,211,884	$311,201	12/31/2023
OXY.WT	6,014	$228	12/31/2023
Aequim Alternative Investments LP		$298,896	12/31/2023
OXY.WT	7,900,000	$298,896	12/31/2023
Invesco Ltd.	4,759,750	$284,205	12/31/2023
OXY	4,759,750	$284,205	12/31/2023
Eagle Capital Management LLC NY	4,704,646	$280,914	12/31/2023
OXY	4,704,646	$280,914	12/31/2023
Adams Asset Advisors LLC		$253,116	03/31/2024
OXY	3,583,935	$232,920	03/31/2024
OXY.WT	468,580	$20,196	03/31/2024
MFN Partners Management LP		$221,535	12/31/2023
OXY.WT	5,690,600	$221,535	12/31/2023
Charles Schwab Investment Management Inc.	3,699,722	$220,910	12/31/2023
OXY	3,699,722	$220,910	12/31/2023
Nomura Holdings Inc.		$198,121	12/31/2023
Call	2,454,100	$146,534	12/31/2023
OXY	1,230,893	$73,497	12/31/2023
Put	593,300	$35,426	12/31/2023
OXY.WT	354,291	$13,516	12/31/2023
Goldman Sachs Group Inc.		$186,032	12/31/2023
OXY	3,238,308	$193,359	12/31/2023
Put	628,000	$37,498	12/31/2023
Call	490,800	$29,306	12/31/2023
OXY.WT	22,223	$865	12/31/2023
Janus Henderson Group PLC	3,081,403	$183,990	12/31/2023
OXY	3,081,403	$183,990	12/31/2023
American Century Companies Inc.	2,905,387	$173,481	12/31/2023
OXY	2,905,387	$173,481	12/31/2023
Alliancebernstein L.P.	2,900,174	$173,169	12/31/2023
OXY	2,900,174	$173,169	12/31/2023
Hudson Bay Capital Management LP		$155,485	12/31/2023
OXY.WT	4,110,100	$155,485	12/31/2023
ANTIPODES PARTNERS Ltd	2,340,465	$139,749	12/31/2023
OXY	2,340,465	$139,749	12/31/2023
UBS Group AG		$128,699	12/31/2023
OXY	2,503,018	$149,455	12/31/2023
Put	1,095,900	$65,436	12/31/2023
Call	693,300	$41,397	12/31/2023
OXY.WT	84,322	$3,283	12/31/2023
Royal Bank of Canada		$125,525	12/31/2023
OXY	2,040,860	$121,862	12/31/2023
Call	38,700	$2,311	12/31/2023
OXY.WT	34,760	$1,352	12/31/2023
Bank of Montreal Can		$124,487	12/31/2023
OXY	2,051,366	$124,415	12/31/2023
OXY.WT	1,827	$72	12/31/2023
Swiss National Bank	2,074,814	$123,887	12/31/2023
OXY	2,074,814	$123,887	12/31/2023
Amundi	2,110,390	$121,263	12/31/2023
OXY	2,110,390	$121,263	12/31/2023
Barclays PLC		$101,098	12/31/2023
OXY	2,037,421	$121,653	12/31/2023
Put	460,300	$27,485	12/31/2023
Call	97,300	$5,810	12/31/2023
OXY.WT	28,751	$1,120	12/31/2023
UBS Asset Management Americas Inc.		$100,473	12/31/2023
OXY	1,675,552	$100,047	12/31/2023
OXY.WT	10,937	$426	12/31/2023
Nuveen Asset Management LLC	1,643,633	$98,149	12/31/2023
OXY	1,643,633	$98,149	12/31/2023
Sumitomo Mitsui Trust Holdings Inc.	1,597,784	$95,404	12/31/2023
OXY	1,597,784	$95,404	12/31/2023
HighTower Advisors LLC		$88,020	12/31/2023
OXY	1,478,554	$88,021	12/31/2023
Put	500	$1	12/31/2023
Epoch Investment Partners Inc.	1,399,569	$83,568	12/31/2023
OXY	1,399,569	$83,568	12/31/2023
Marshall Wace LLP	1,379,178	$82,351	12/31/2023
OXY	1,379,178	$82,351	12/31/2023
National Pension Service	1,342,292	$80,148	12/31/2023
OXY	1,342,292	$80,148	12/31/2023
Susquehanna International Group LLP		$79,735	12/31/2023
Call	7,457,500	$445,287	12/31/2023
Put	7,249,000	$432,838	12/31/2023
OXY	910,428	$54,362	12/31/2023
OXY.WT	331,981	$12,924	12/31/2023
Citigroup Inc.		$77,128	12/31/2023
Call	1,035,569	$61,647	12/31/2023
OXY	677,273	$40,440	12/31/2023
Put	418,000	$24,959	12/31/2023
D. E. Shaw & Co. Inc.		$75,934	12/31/2023
Call	2,341,700	$139,823	12/31/2023
Put	1,813,600	$108,290	12/31/2023
OXY	717,597	$42,848	12/31/2023
OXY.WT	39,904	$1,553	12/31/2023
Two Sigma Investments LP	1,245,672	$74,379	12/31/2023
OXY	1,245,672	$74,379	12/31/2023
California Public Employees Retirement System	1,241,834	$74,150	12/31/2023
OXY	1,241,834	$74,150	12/31/2023
JPMorgan Chase & Co.		$72,427	12/31/2023
OXY	1,079,881	$64,480	12/31/2023
Call	182,900	$10,921	12/31/2023
Put	70,800	$4,227	12/31/2023
OXY.WT	32,180	$1,253	12/31/2023
Rhumbline Advisers	1,191,735	$71,158	12/31/2023
OXY	1,191,735	$71,158	12/31/2023