Occidental Petroleum Ownership | Who Owns Occidental Petroleum?

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Occidental Petroleum Ownership Summary

Occidental Petroleum is owned by 44.08% institutional investors, 27.18% insiders, and 28.74% retail investors. Berkshire hathaway is the largest institutional shareholder, holding 26.89% of OXY shares. Dodge & Cox Stock I is the top mutual fund, with 5.55% of its assets in Occidental Petroleum shares.

OXY Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Occidental Petroleum	44.08%	27.18%	28.74%
Sector	Energy Stocks	147.62%	15.16%	-62.78%
Industry	Oil & Gas Exploration & Production Stocks	33.96%	15.19%	50.85%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Berkshire hathaway	264.94M	26.89%	$12.52B
Vanguard group	89.90M	9.11%	$3.70B
Dodge & cox	79.88M	8.11%	$3.77B
Blackrock funding, inc. /de	50.61M	5.13%	$2.08B
Blackrock	40.29M	4.56%	$2.54B
State street	38.71M	3.93%	$1.84B
Geode capital management	18.85M	1.91%	$771.95M
H&h investment	13.56M	1.38%	$640.53M
Morgan stanley	11.40M	1.16%	$468.71M
Dimensional fund advisors lp	10.60M	1.07%	$436.01M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Adams asset advisors	3.28M	17.76%	$134.99M
Fairfax financial ltd/ can	6.05M	13.85%	$285.94M
Chou associates management	313.00K	7.12%	$14.79M
Aldebaran capital	159.63K	5.89%	$6.56M
Qsm asset management	214.88K	5.06%	$8.84M
Swisspartners advisors	164.50K	4.90%	$6.76M
Berkshire hathaway	264.94M	4.68%	$12.52B
H&h investment	13.56M	4.36%	$640.53M
Hahn capital management	172.54K	3.91%	$8.15M
Scharf investments	2.94M	3.25%	$120.88M

Top Buyers

Holder	Shares	% Assets	Change
Millennium management	2.17M	0.05%	1.97M
Dimensional fund advisors lp	10.60M	0.09%	1.88M
Ubs asset management americas	3.96M	0.03%	1.39M
Wellington management group llp	1.49M	0.01%	1.36M
Blackrock funding, inc. /de	50.61M	0.04%	1.18M

Top Sellers

Holder	Shares	% Assets	Change
Pacer advisors	-	-	-6.99M
Hightower advisors	384.83K	0.02%	-2.19M
Susquehanna group, llp	663.99K	0.01%	-2.14M
Janus henderson group	129.32K	0.00%	-1.95M
Worldquant millennium advisors	-	-	-1.93M

New Positions

Holder	Shares	% Assets	Change	Value
Aventail capital group, lp	838.36K	1.84%	838.36K	$39.61M
Diameter capital partners lp	450.00K	1.31%	450.00K	$21.26M
Cooperman leon g	337.50K	0.50%	337.50K	$15.95M
Varma mutual pension insurance	284.80K	0.07%	284.80K	$11.71M
Axa investment managers	199.47K	0.03%	199.47K	$9.42M

Sold Out

Holder	Change
Conquis financial	-1.00
Mowery & schoenfeld wealth management	-1.00
Halbert hargrove global advisors	-1.00
Gordian capital singapore pte	-2.00
West branch capital	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	1,004	-18.44%	434,796,572	-42.85%	44	0.74%	379	-28.63%	407	-0.49%
Sep 30, 2025	1,191	-	759,813,873	3.56%	77	1.39%	514	-14.90%	397	14.08%
Jun 30, 2025	1,168	-6.93%	750,251,677	1.25%	76	1.23%	595	-4.65%	340	-2.30%
Mar 31, 2025	1,233	-2.76%	740,424,980	3.13%	78	1.31%	611	6.63%	345	-25.49%
Dec 31, 2024	678	-46.45%	174,461,548	-75.80%	18	0.31%	307	-48.49%	256	-37.10%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Dodge & Cox Stock I	54.70M	5.55%	-
Vanguard Total Stock Mkt Idx Inv	23.31M	2.36%	49.99K
Vanguard US Total Market Shares ETF	20.33M	2.17%	21.22K
Vanguard 500 Index Investor	18.32M	1.86%	114.26K
Vanguard Mid Cap Index Institutional	16.00M	1.62%	-84.09K
State Street®EngySelSectSPDR®ETF	15.63M	1.58%	25.41K
The Energy Select Sector SPDR® ETF	13.78M	1.40%	2.27K
iShares Core S&P 500 ETF	9.16M	0.93%	2.32M
Fidelity 500 Index	9.10M	0.92%	19.53K
SPDR® S&P 500 ETF	8.40M	0.90%	-123.07K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 16, 2025	KLESSE WILLIAM R	-	Buy	$194.90K
Feb 07, 2025	BERKSHIRE HATHAWAY INC	-	Buy	$35.72M
Dec 19, 2024	BERKSHIRE HATHAWAY INC	-	Buy	$11.19M
Dec 19, 2024	BERKSHIRE HATHAWAY INC	-	Buy	$153.59M
Dec 18, 2024	BERKSHIRE HATHAWAY INC	-	Buy	$17.57M

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	-
2025 Q4	1	-
2025 Q2	-	-
2025 Q1	1	-
2024 Q4	5	-

OXY Ownership FAQ

Who Owns Occidental Petroleum?

Occidental Petroleum shareholders are primarily institutional investors at 44.08%, followed by 27.18% insiders and 28.74% retail investors. The average institutional ownership in Occidental Petroleum's industry, Oil & Gas Exploration & Production Stocks, is 33.96%, which Occidental Petroleum exceeds.

Who owns the most shares of Occidental Petroleum?

Occidental Petroleum’s largest shareholders are Berkshire hathaway (264.94M shares, 26.89%), Vanguard group (89.9M shares, 9.11%), and Dodge & cox (79.88M shares, 8.11%). Together, they hold 44.12% of Occidental Petroleum’s total shares outstanding.

Does Blackrock own Occidental Petroleum?

Yes, BlackRock owns 4.56% of Occidental Petroleum, totaling 40.29M shares as of Jun 2024. This represents 0.06% of BlackRock's total assets, with a market value of 2.54B$. In the last quarter, BlackRock decreased its holdings by -101K shares, a -0.25% change.

Who is Occidental Petroleum’s biggest shareholder by percentage of total assets invested?

Adams asset advisors is Occidental Petroleum’s biggest shareholder by percentage of total assets invested, with 17.76% of its assets in 3.28M Occidental Petroleum shares, valued at 134.99M$.

Who is the top mutual fund holder of Occidental Petroleum shares?

Dodge & Cox Stock I is the top mutual fund holder of Occidental Petroleum shares, with 5.55% of its total shares outstanding invested in 54.7M Occidental Petroleum shares.

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