Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionDodge & Cox
Latest Disclosed Ownership74,085,572 shares
Ownership 7.50%
Dodge & Cox ownership in OXY / Occidental Petroleum Corporation

2026-05-14 - Dodge & Cox has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 74,085,572 shares of Occidental Petroleum Corporation (CH:OXY). This represents 7.5 percent ownership of the company. In their previous filing dated 2025-02-13 , Dodge & Cox had reported owning 84,255,322 shares, indicating a decrease of -12.07 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-05-14 2026-05-14 13G/A 84,255,322 74,085,572 -12.07 7.50 -14.77
2025-02-13 2025-02-13 13G/A 95,267,578 84,255,322 -11.56 8.80 -17.76
2024-02-13 2024-02-13 13G/A 107,355,862 95,267,578 -11.26 10.70 -7.76
2023-02-14 2023-02-14 13G/A 127,619,635 107,355,862 -15.88 11.60 -13.43
2022-02-14 2022-02-14 13G/A 135,508,313 127,619,635 -5.82 13.40 -6.29
2021-02-11 2021-02-11 13G/A 89,662,134 135,508,313 51.13 14.30 43.00
2020-02-10 2020-02-10 13G/A 88,236,727 89,662,134 1.62 10.00 1.01
2020-02-07 2020-02-07 13G 88,236,727 9.90

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F Occidental Petroleum COM 674599105 74,085,572 -5,387,499 -6.78 4,815,562 47.36 2.6463
2026-02-13 2025-12-31 13F Occidental Petroleum COM 674599105 79,473,071 -410,300 -0.51 3,267,933 -13.42 1.7640
2025-11-13 2025-09-30 13F Occidental Petroleum COM 674599105 79,883,371 -371,001 -0.46 3,774,489 11.95 2.0366
2025-08-13 2025-06-30 13F Occidental Petroleum COM 674599105 80,254,372 -584,698 -0.72 3,371,486 -15.51 1.8944
2025-05-14 2025-03-31 13F Occidental Petroleum COM 674599105 80,839,070 10,836,568 15.48 3,990,216 15.36 2.2743
2025-02-13 2024-12-31 13F Occidental Petroleum COM 674599105 70,002,502 -8,008,546 -10.27 3,458,824 -13.97 2.0128
2024-11-13 2024-09-30 13F Occidental Petroleum COM 674599105 78,011,048 -349,960 -0.45 4,020,689 -18.59 2.2737
2024-08-13 2024-06-30 13F Occidental Petroleum COM 674599105 78,361,008 -1,164,790 -1.46 4,939,094 -4.44 2.9643
2024-05-14 2024-03-31 13F Occidental Petroleum COM 674599105 79,525,798 -1,466,710 -1.81 5,168,382 6.87 2.9982
2024-02-22 2023-12-31 13F/A-1 Occidental Petroleum COM 674599105 80,992,508 -9,456,795 -10.46 4,836,063 -17.59 3.0695
2024-02-15 2023-12-31 13F Occidental Petroleum COM 674599105 80,992,508 -9,456,795 4,836,063 3.0743
2023-11-14 2023-09-30 13F Occidental Petroleum COM 674599105 90,449,303 -854,337 -0.94 5,868,351 9.31 3.9545
2023-08-14 2023-06-30 13F Occidental Petroleum COM 674599105 91,303,640 -852,429 -0.92 5,368,654 -6.69 3.5825
2023-05-12 2023-03-31 13F Occidental Petroleum COM 674599105 92,156,069 -801,155 -0.86 5,753,303 -1.74 3.9204
2023-02-14 2022-12-31 13F Occidental Petroleum COM 674599105 92,957,224 -2,021,164 -2.13 5,855,376 0.32 4.0154
2022-11-10 2022-09-30 13F Occidental Petroleum COM 674599105 94,978,388 -3,442,753 -3.50 5,836,422 0.71 4.4225
2022-08-12 2022-06-30 13F Occidental Petroleum COM 674599105 98,421,141 -2,287,925 -2.27 5,795,037 1.41 4.0115
2022-05-13 2022-03-31 13F OCCIDENTAL PETROLEUM COR COM 674599105 100,709,066 -11,822,694 -10.51 5,714,232 75.16 3.4722
2022-02-14 2021-12-31 13F OCCIDENTAL PETROLEUM COR COM 674599105 112,531,760 -2,769,327 -2.40 3,262,296 -4.35 2.0206
2021-11-15 2021-09-30 13F OCCIDENTAL PETROLEUM COR COM 674599105 115,301,087 -100,402 -0.09 3,410,606 -5.49 2.2216
2021-08-13 2021-06-30 13F Occidental Petroleum COM 674599105 115,401,489 -549,190 -0.47 3,608,605 16.91 2.3605
2021-05-14 2021-03-31 13F OCCIDENTAL PETROLEUM COR COM 674599105 115,950,679 -4,265,568 -3.55 3,086,607 48.33 2.2068
2021-02-11 2020-12-31 13F Occidental Petroleum COM 674599105 120,216,247 -1,092,769 -0.90 2,080,943 71.37 1.6451
2020-11-13 2020-09-30 13F OCCIDENTAL PETROLEUM COM 674599105 121,309,016 -2,368,158 -1.91 1,214,303 -46.35 1.1112
2020-08-13 2020-06-30 13F Occidental Petroleum COM 674599105 123,677,174 5,814,618 4.93 2,263,292 65.83 2.0815
2020-05-14 2020-03-31 13F Occidental Petroleum COM 674599105 117,862,556 29,625,829 33.58 1,364,848 -62.47 1.4764
2020-02-13 2019-12-31 13F Occidental Petroleum COM 674599105 88,236,727 -915,119 -1.03 3,636,236 -8.28 2.7832
2019-11-13 2019-09-30 13F Occidental Petroleum COM 674599105 89,151,846 34,741,956 63.85 3,964,583 44.92 3.2622
2019-08-13 2019-06-30 13F Occidental Petroleum COM 674599105 54,409,890 24,041,890 79.17 2,735,729 36.08 2.2125
2019-05-14 2019-03-31 13F Occidental Petroleum COM 674599105 30,368,000 2,385,585 8.53 2,010,362 17.05 1.6503
2019-02-14 2018-12-31 13F Occidental Petroleum COM 674599105 27,982,415 18,094,520 183.00 1,717,561 111.40 1.5736
2018-11-21 2018-09-30 13F/A-1 Occidental Petroleum COM 674599105 9,887,895 3,656,670 58.68 812,488 55.82 0.6215
2018-11-14 2018-09-30 13F Occidental Petroleum COM 674599105 9,887,895 3,656,670 812,488
2018-08-14 2018-06-30 13F Occidental Petroleum COM 674599105 6,231,225 -118,700 -1.87 521,429 26.41 0.4166
2018-05-14 2018-03-31 13F Occidental Petroleum COM 674599105 6,349,925 2,619,165 70.20 412,491 50.10 0.3330
2018-02-14 2017-12-31 13F Occidental Petroleum COM 674599105 3,730,760 499,356 15.45 274,808 32.45 0.2129
2017-11-13 2017-09-30 13F Occidental Petroleum COM 674599105 3,231,404 3,086,982 2,137.47 207,488 2,299.54 0.1669
2017-08-11 2017-06-30 13F Occidental Petroleum COM 674599105 144,422 -20,700 -12.54 8,647 -17.35 0.0073
2017-05-12 2017-03-31 13F Occidental Petroleum COM 674599105 165,122 -11,665 -6.60 10,462 -16.92 0.0089
2017-03-20 2016-12-31 13F/A-1 Occidental Petroleum COM 674599105 176,787 -12,497 -6.60 12,593 -8.77 0.0112
2017-02-14 2016-12-31 13F Occidental Petroleum COM 674599105 181,287 12,913
2016-11-14 2016-09-30 13F Occidental Petroleum COM 674599105 189,284 -900 -0.47 13,803 -3.95 0.0130
2016-08-12 2016-06-30 13F Occidental Petroleum COM 674599105 190,184 -5,800 -2.96 14,370 7.15 0.0142
2016-05-13 2016-03-31 13F Occidental Petroleum COM 674599105 195,984 -2,250 -1.14 13,411 0.06 0.0131
2016-02-12 2015-12-31 13F Occidental Petroleum COM 674599105 198,234 -1,647 -0.82 13,403 1.37 0.0132
2015-11-12 2015-09-30 13F Occidental Petroleum COM 674599105 199,881 -200 -0.10 13,222 -15.03 0.0133
2015-08-13 2015-06-30 13F Occidental Petroleum COM 674599105 200,081 -4,303 -2.11 15,560 4.29 0.0140
2015-05-14 2015-03-31 13F Occidental Petroleum COM 674599105 204,384 -8,450 -3.97 14,920 -13.04 0.0138
2015-02-13 2014-12-31 13F Occidental Petroleum COM 674599105 212,834 -15,302 -6.71 17,157 -21.78 0.0159
2014-11-13 2014-09-30 13F OCCIDENTAL PETROLEUM COM 674599105 228,136 -7,333 -3.11 21,935 -9.23 0.0210
2014-08-13 2014-06-30 13F OCCIDENTAL PETROLEUM COM 674599105 235,469 -19,284 -7.57 24,166 -0.45 0.0230
2014-05-14 2014-03-31 13F OCCIDENTAL PETROLEUM COM 674599105 254,753 -38,784 -13.21 24,275 -13.04 0.0248
2014-02-14 2013-12-31 13F OCCIDENTAL PETROLEUM COM 674599105 293,537 -18,804 -6.02 27,915 -4.45 0.0291
2013-11-13 2013-09-30 13F OCCIDENTAL PETROLEUM COM 674599105 312,341 -61,308 -16.41 29,216 -12.37 0.0332
2013-08-13 2013-06-30 13F OCCIDENTAL PETROLEUM COM 674599105 373,649 373,649 33,341 0.0396
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.