OXY Institutional Ownership & Shareholders
OCCIDENTAL PETROLEUM CORP (OXY) is currently held by 1,250 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $40.70B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Berkshire Hathaway is currently the largest disclosed institutional shareholder of OXY tracked by InsiderSet, reporting ownership valued at approximately $12.87B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $16.96B, representing an estimated gain of +31.77% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 70% of the total disclosed OXY value among the investors covered in this analysis. Major shareholders include Berkshire Hathaway, Dodge & Cox Stock Fund, Blackrock, Inc., and several other long-term asset managers with concentrated positions in OCCIDENTAL PETROLEUM CORP (OXY).
This page ranks the largest institutional OXY shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,250
Total Reported Value
$40.70B
Largest Holder
Berkshire Hathaway
Largest Position
$12.87B
Insider Transactions (90d)
2
Latest Filing Quarter
Q2 2026
New Institutional Positions
49
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Berkshire Hathaway | Warren Buffett | 4.30% | 264,941,431 | $12,868,205,304 | $16,956,251,584 | +$4,088,046,280 | +31.77% |
| Dodge & Cox Stock Fund | V. D. Dodge, E. M. Cox | 1.85% | 72,764,944 | $3,534,193,330 | $4,656,956,416 | +$1,122,763,086 | +31.77% |
| Blackrock, Inc. | 0.04% | 55,855,049 | $2,712,879,736 | $3,574,723,136 | +$861,843,400 | +31.77% | |
| Vanguard Capital Management Llc | 0.05% | 48,097,126 | $2,336,077,410 | $3,078,216,064 | +$742,138,654 | +31.77% | |
| State Street Corp | 0.07% | 46,141,269 | $2,252,270,695 | $2,953,041,216 | +$700,770,521 | +31.11% | |
| Vanguard Portfolio Management Llc | 0.09% | 39,510,431 | $1,919,021,634 | $2,528,667,584 | +$609,645,950 | +31.77% | |
| Geode Capital Management, Llc | 0.05% | 19,900,735 | $962,845,551 | $1,273,647,040 | +$310,801,489 | +32.28% | |
| Invesco Ltd. | 0.05% | 12,745,004 | $619,024,812 | $815,680,256 | +$196,655,444 | +31.77% | |
| Morgan Stanley | 0.03% | 12,240,048 | $594,499,243 | $783,363,072 | +$188,863,829 | +31.77% | |
| Aqr Capital Management Llc | 0.19% | 11,473,188 | $557,252,745 | $734,284,032 | +$177,031,287 | +31.77% | |
| Bank Of New York Mellon Corp | 0.08% | 10,643,916 | $516,975,024 | $681,210,624 | +$164,235,600 | +31.77% | |
| H&H International Investment | Duan Yongping | 2.61% | 10,261,500 | $498,401,055 | $656,736,000 | +$158,334,945 | +31.77% |
| Dimensional Fund Advisors Lp | 0.09% | 10,026,694 | $487,030,170 | $641,708,416 | +$154,678,246 | +31.76% | |
| Bank Of America Corp | 0.02% | 6,730,796 | $326,914,775 | $430,770,944 | +$103,856,169 | +31.77% | |
| Northern Trust Corp | 0.04% | 6,522,586 | $316,802,001 | $417,445,504 | +$100,643,503 | +31.77% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.07% | 4,872,439 | $316,708,535 | $311,836,096 | -$4,872,439 | -1.54% | |
| Charles Schwab Investment Management Inc | 0.04% | 5,760,317 | $279,778,596 | $368,660,288 | +$88,881,692 | +31.77% | |
| Goldman Sachs Group Inc | 0.03% | 5,622,427 | $273,081,293 | $359,835,328 | +$86,754,035 | +31.77% | |
| Qube Research & Technologies Ltd | 0.30% | 5,585,331 | $271,279,527 | $357,461,184 | +$86,181,657 | +31.77% | |
| Point72 Asset Management, L.P. | 0.39% | 5,193,668 | $252,256,455 | $332,394,752 | +$80,138,297 | +31.77% | |
| Peakshares Llc | 0.17% | 4,698 | $228,182,000 | $300,672 | -$227,881,328 | -99.87% | |
| Vanguard Fiduciary Trust Co | 0.04% | 4,093,322 | $198,812,650 | $261,972,608 | +$63,159,958 | +31.77% | |
| Bnp Paribas Financial Markets | 0.10% | 3,871,511 | $188,039,289 | $247,776,704 | +$59,737,415 | +31.77% | |
| Ubs Group Ag | 0.03% | 3,825,633 | $185,810,994 | $244,840,512 | +$59,029,518 | +31.77% | |
| Fmr Llc | 0.01% | 3,721,356 | $180,746,262 | $238,166,784 | +$57,420,522 | +31.77% | |
| Pacer Advisors, Inc. | 0.46% | 3,622,193 | $175,930,000 | $231,820,352 | +$55,890,352 | +31.77% | |
| Danske Bank A/S | 0.35% | 3,587,419 | $174,240,940 | $229,594,816 | +$55,353,876 | +31.77% | |
| Two Sigma Investments, Lp | 0.13% | 3,576,936 | $173,731,782 | $228,923,904 | +$55,192,122 | +31.77% | |
| Legal & General Group Plc | 0.04% | 3,476,632 | $168,860,016 | $222,504,448 | +$53,644,432 | +31.77% | |
| Smead Capital Management, Inc. | 3.46% | 2,939,694 | $162,623,851 | $188,140,416 | +$25,516,565 | +15.69% | |
| Assenagon Asset Management S.A. | 0.16% | 2,849,248 | $157,620,399 | $182,351,872 | +$24,731,473 | +15.69% | |
| Scharf Investments, Llc | 5.11% | 3,187,747 | $154,829,078 | $204,015,808 | +$49,186,730 | +31.77% | |
| D. E. Shaw & Co., Inc. | 0.09% | 3,076,764 | $149,438,427 | $196,912,896 | +$47,474,469 | +31.77% | |
| American Century Companies Inc | 0.06% | 2,934,962 | $142,551,127 | $187,837,568 | +$45,286,441 | +31.77% | |
| Susquehanna International Group, Llp | 0.12% | 2,724,339 | $132,321,145 | $174,357,696 | +$42,036,551 | +31.77% | |
| Jpmorgan Chase & Co | 0.01% | 2,596,088 | $127,442,029 | $166,149,632 | +$38,707,603 | +30.37% | |
| Nuveen, Llc | 0.03% | 2,429,524 | $118,001,960 | $155,489,536 | +$37,487,576 | +31.77% | |
| Barclays Plc | 0.04% | 2,420,563 | $117,566,746 | $154,916,032 | +$37,349,286 | +31.77% | |
| Citadel Advisors Llc | 0.06% | 2,291,616 | $111,303,789 | $146,663,424 | +$35,359,635 | +31.77% | |
| Millennium Management Llc | 0.07% | 2,277,245 | $110,605,790 | $145,743,680 | +$35,137,890 | +31.77% | |
| Worldquant Millennium Advisors Llc | 0.36% | 2,183,837 | $106,068,963 | $139,765,568 | +$33,696,605 | +31.77% | |
| Swiss National Bank | 0.05% | 2,086,214 | $101,327,414 | $133,517,696 | +$32,190,282 | +31.77% | |
| Tidal Investments Llc | 0.24% | 2,065,731 | $100,332,555 | $132,206,784 | +$31,874,229 | +31.77% | |
| Cooke & Bieler Lp | 1.54% | 1,764,179 | $97,594,382 | $112,907,456 | +$15,313,074 | +15.69% | |
| Deutsche Bank Ag\ | 0.03% | 1,984,408 | $96,382,698 | $127,002,112 | +$30,619,414 | +31.77% | |
| Alyeska Investment Group, L.P. | 0.24% | 1,892,318 | $91,909,885 | $121,108,352 | +$29,198,467 | +31.77% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.05% | 1,659,317 | $91,793,416 | $106,196,288 | +$14,402,872 | +15.69% | |
| Sourcerock Group Llc | 4.64% | 1,835,700 | $89,159,949 | $117,484,800 | +$28,324,851 | +31.77% | |
| Ameriprise Financial Inc | 0.02% | 1,791,143 | $87,017,743 | $114,633,152 | +$27,615,409 | +31.74% | |
| Mitsubishi Ufj Asset Management Co., Ltd. | 0.05% | 1,790,655 | $86,971,751 | $114,601,920 | +$27,630,169 | +31.77% |
Frequently asked questions about OXY
Who are the largest institutional holders of OXY?
The largest institutional holders of OXY reported in the latest SEC Form 13F filings include Berkshire Hathaway, Dodge & Cox Stock Fund, Blackrock, Inc., Vanguard Capital Management Llc, and State Street Corp. InsiderSet ranks institutional holders by their latest reported OXY position.
What is OXY institutional ownership?
This page tracks OXY positions reported by institutional investment managers through SEC Form 13F. OCCIDENTAL PETROLEUM CORP (OXY) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own OXY?
InsiderSet currently tracks 1,250 institutional managers reporting OXY holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of OXY shareholders.
How much OXY stock do institutions own?
Institutional investment managers disclosed approximately $40.70B in OXY holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was OXY institutional ownership last updated?
The latest OXY institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional OXY holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its OXY position after the reporting date.
Are institutions buying or selling OXY?
Institutional buying and selling can be analyzed by comparing OXY positions across consecutive 13F reporting periods. InsiderSet's OXY Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View OXY ownership changes.
How has OXY institutional ownership changed over time?
InsiderSet tracks OXY institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.