OCCIDENTAL PETROLEUM CORP (OXY) Institutional Shareholders
OCCIDENTAL PETROLEUM CORP (OXY) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $40.53B in OXY holdings during the latest filing period.
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 $15.46B, representing an estimated gain of +20.16% 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
1,217
Total Reported Value
$40.53B
Largest Holder
Berkshire Hathaway
Largest Position
$12.87B
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
49
Funds Exiting Positions
0
| 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 | $15,461,981,913 | +$2,593,776,609 | +20.16% |
| Dodge & Cox Stock Fund | V. D. Dodge, E. M. Cox | 1.85% | 72,764,944 | $3,534,193,330 | $4,246,562,132 | +$712,368,802 | +20.16% |
| Blackrock, Inc. | 0.04% | 55,855,049 | $2,712,879,736 | $3,259,700,660 | +$546,820,924 | +20.16% | |
| Vanguard Capital Management Llc | 0.05% | 48,097,126 | $2,336,077,410 | $2,806,948,273 | +$470,870,863 | +20.16% | |
| State Street Corp | 0.07% | 46,141,269 | $2,252,270,695 | $2,692,804,459 | +$440,533,764 | +19.56% | |
| Vanguard Portfolio Management Llc | 0.09% | 39,510,431 | $1,919,021,634 | $2,305,828,753 | +$386,807,119 | +20.16% | |
| Geode Capital Management, Llc | 0.05% | 19,900,735 | $962,845,551 | $1,161,406,895 | +$198,561,344 | +20.62% | |
| Invesco Ltd. | 0.05% | 12,745,004 | $619,024,812 | $743,798,433 | +$124,773,621 | +20.16% | |
| Morgan Stanley | 0.03% | 12,240,048 | $594,499,243 | $714,329,201 | +$119,829,958 | +20.16% | |
| Aqr Capital Management Llc | 0.19% | 11,473,188 | $557,252,745 | $669,575,252 | +$112,322,507 | +20.16% | |
| Bank Of New York Mellon Corp | 0.08% | 10,643,916 | $516,975,024 | $621,178,938 | +$104,203,914 | +20.16% | |
| H&H International Investment | Duan Yongping | 2.61% | 10,261,500 | $498,401,055 | $598,861,140 | +$100,460,085 | +20.16% |
| Dimensional Fund Advisors Lp | 0.09% | 10,026,694 | $487,030,170 | $585,157,862 | +$98,127,692 | +20.15% | |
| Bank Of America Corp | 0.02% | 6,730,796 | $326,914,775 | $392,809,255 | +$65,894,480 | +20.16% | |
| Northern Trust Corp | 0.04% | 6,522,586 | $316,802,001 | $380,658,119 | +$63,856,118 | +20.16% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.07% | 4,872,439 | $316,708,535 | $284,355,540 | -$32,352,995 | -10.22% | |
| Charles Schwab Investment Management Inc | 0.04% | 5,760,317 | $279,778,596 | $336,172,100 | +$56,393,504 | +20.16% | |
| Sixth Street Partners Management Company, L.P. | 0.04% | 5,760,317 | $279,778,596 | $336,172,100 | +$56,393,504 | +20.16% | |
| Goldman Sachs Group Inc | 0.03% | 5,622,427 | $273,081,293 | $328,124,840 | +$55,043,547 | +20.16% | |
| Qube Research & Technologies Ltd | 0.30% | 5,585,331 | $271,279,527 | $325,959,917 | +$54,680,390 | +20.16% | |
| Point72 Asset Management, L.P. | 0.39% | 5,193,668 | $252,256,455 | $303,102,464 | +$50,846,009 | +20.16% | |
| Peakshares Llc | 0.17% | 4,698 | $228,182,000 | $274,175 | -$227,907,825 | -99.88% | |
| Vanguard Fiduciary Trust Co | 0.04% | 4,093,322 | $198,812,650 | $238,886,272 | +$40,073,622 | +20.16% | |
| Bnp Paribas Financial Markets | 0.10% | 3,871,511 | $188,039,289 | $225,941,382 | +$37,902,093 | +20.16% | |
| Ubs Group Ag | 0.03% | 3,825,633 | $185,810,994 | $223,263,942 | +$37,452,948 | +20.16% | |
| Fmr Llc | 0.01% | 3,721,356 | $180,746,262 | $217,178,336 | +$36,432,074 | +20.16% | |
| Danske Bank A/S | 0.35% | 3,587,419 | $174,240,940 | $209,361,773 | +$35,120,833 | +20.16% | |
| Two Sigma Investments, Lp | 0.13% | 3,576,936 | $173,731,782 | $208,749,985 | +$35,018,203 | +20.16% | |
| Legal & General Group Plc | 0.04% | 3,476,632 | $168,860,016 | $202,896,244 | +$34,036,228 | +20.16% | |
| Scharf Investments, Llc | 5.11% | 3,187,747 | $154,829,078 | $186,036,915 | +$31,207,837 | +20.16% | |
| Amundi | 0.04% | 3,098,454 | $150,491,911 | $180,825,775 | +$30,333,864 | +20.16% | |
| D. E. Shaw & Co., Inc. | 0.09% | 3,076,764 | $149,438,427 | $179,559,947 | +$30,121,520 | +20.16% | |
| American Century Companies Inc | 0.06% | 2,934,962 | $142,551,127 | $171,284,382 | +$28,733,255 | +20.16% | |
| Smead Capital Management, Inc. | 3.01% | 2,889,985 | $140,366,556 | $168,659,525 | +$28,292,969 | +20.16% | |
| Susquehanna International Group, Llp | 0.12% | 2,724,339 | $132,321,145 | $158,992,424 | +$26,671,279 | +20.16% | |
| Jpmorgan Chase & Co | 0.01% | 2,596,088 | $127,442,029 | $151,507,696 | +$24,065,667 | +18.88% | |
| Nuveen, Llc | 0.03% | 2,429,524 | $118,001,960 | $141,787,021 | +$23,785,061 | +20.16% | |
| Barclays Plc | 0.04% | 2,420,563 | $117,566,746 | $141,264,057 | +$23,697,311 | +20.16% | |
| Citadel Advisors Llc | 0.06% | 2,291,616 | $111,303,789 | $133,738,710 | +$22,434,921 | +20.16% | |
| Millennium Management Llc | 0.07% | 2,277,245 | $110,605,790 | $132,900,018 | +$22,294,228 | +20.16% | |
| Cooke & Bieler Lp | 1.25% | 2,219,769 | $107,814,180 | $129,545,719 | +$21,731,539 | +20.16% | |
| Worldquant Millennium Advisors Llc | 0.36% | 2,183,837 | $106,068,963 | $127,448,727 | +$21,379,764 | +20.16% | |
| Swiss National Bank | 0.05% | 2,086,214 | $101,327,414 | $121,751,449 | +$20,424,035 | +20.16% | |
| Tidal Investments Llc | 0.24% | 2,065,731 | $100,332,555 | $120,556,061 | +$20,223,506 | +20.16% | |
| Deutsche Bank Ag\ | 0.03% | 1,984,408 | $96,382,698 | $115,810,051 | +$19,427,353 | +20.16% | |
| Alyeska Investment Group, L.P. | 0.24% | 1,892,318 | $91,909,885 | $110,435,678 | +$18,525,793 | +20.16% | |
| Sourcerock Group Llc | 4.64% | 1,835,700 | $89,159,949 | $107,131,452 | +$17,971,503 | +20.16% | |
| Ameriprise Financial Inc | 0.02% | 1,791,143 | $87,017,743 | $104,531,105 | +$17,513,362 | +20.13% | |
| Mitsubishi Ufj Asset Management Co., Ltd. | 0.05% | 1,790,655 | $86,971,751 | $104,502,626 | +$17,530,875 | +20.16% | |
| Wells Fargo & Company/Mn | 0.01% | 1,747,316 | $84,867,133 | $101,973,362 | +$17,106,229 | +20.16% |
Frequently asked questions about OXY
Who owns the most OXY stock?
The largest holders of OXY are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for OCCIDENTAL PETROLEUM CORP (OXY).
Is OXY widely held by superinvestors?
Many widely followed stocks like OXY appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly OXY is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.