Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionAldebaran Capital, Llc
Latest Disclosed Ownership154,152 shares
Latest Disclosed Value $ 10,019,880
Aldebaran Capital, Llc reports 3.43% decrease in ownership of OXY / Occidental Petroleum Corporation

On May 7, 2026 - Aldebaran Capital, Llc filed a 13F-HR form disclosing ownership of 154,152 shares of Occidental Petroleum Corporation (CH:OXY) valued at $10,019,880 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 159,634 shares of Occidental Petroleum Corporation. This represents a change in shares of -3.43% during the quarter.

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)
2026-05-07 2026-03-31 13F OCCIDENTAL PETE COM 674599105 154,152 -5,482 -3.43 10,020 52.64 7.6595
2026-02-12 2025-12-31 13F OCCIDENTAL PETE COM 674599105 159,634 -8,710 -5.17 6,564 -17.48 5.8860
2025-11-10 2025-09-30 13F OCCIDENTAL PETE COM 674599105 168,344 -2,694 -1.58 7,954 10.70 7.3065
2025-08-12 2025-06-30 13F OCCIDENTAL PETE COM 674599105 171,038 -1,815 -1.05 7,185 -15.79 7.0903
2025-05-13 2025-03-31 13F OCCIDENTAL PETE COM 674599105 172,853 3,480 2.05 8,532 1.96 8.0694
2025-02-12 2024-12-31 13F OCCIDENTAL PETE COM 674599105 169,373 -5,186 -2.97 8,369 -6.98 7.9537
2024-11-13 2024-09-30 13F OCCIDENTAL PETE COM 674599105 174,559 -55 -0.03 8,997 -18.26 8.2123
2024-08-13 2024-06-30 13F OCCIDENTAL PETE COM 674599105 174,614 -945 -0.54 11,006 -3.54 10.2476
2024-05-14 2024-03-31 13F OCCIDENTAL PETE COM 674599105 175,559 11,527 7.03 11,410 16.49 10.8636
2024-02-13 2023-12-31 13F OCCIDENTAL PETE COM 674599105 164,032 135 0.08 9,794 -7.89 10.0277
2023-11-13 2023-09-30 13F OCCIDENTAL PETE COM 674599105 163,897 70 0.04 10,634 10.38 10.8382
2023-08-09 2023-06-30 13F OCCIDENTAL PETE COM 674599105 163,827 -509 -0.31 9,633 -6.10 9.8925
2023-05-11 2023-03-31 13F OCCIDENTAL PETE COM 674599105 164,336 3,578 2.23 10,259 1.31 10.4756
2023-02-13 2022-12-31 13F OCCIDENTAL PETE COM 674599105 160,758 160,758 10,126 10.4690
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.