Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionBayesian Capital Management, LP
Latest Disclosed Ownership9,068 shares
Latest Disclosed Value $ 589,420
Bayesian Capital Management, LP reports 3.53% decrease in ownership of OXY / Occidental Petroleum Corporation

On May 15, 2026 - Bayesian Capital Management, LP filed a 13F-HR form disclosing ownership of 9,068 shares of Occidental Petroleum Corporation (CH:OXY) valued at $589,420 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,400 shares of Occidental Petroleum Corporation. This represents a change in shares of -3.53% 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)
2026-05-15 2026-03-31 13F OCCIDENTAL PETE COM 674599105 9,068 -332 -3.53 589 52.59 0.7192
2026-02-17 2025-12-31 13F OCCIDENTAL PETE COM 674599105 9,400 -14,500 -60.67 387 -65.81 0.8856
2025-11-14 2025-09-30 13F OCCIDENTAL PETE COM 674599105 23,900 14,000 141.41 1,129 172.05 0.2307
2025-08-14 2025-06-30 13F OCCIDENTAL PETE COM 674599105 9,900 -40,200 -80.24 416 -83.21 0.0657
2025-05-15 2025-03-31 13F OCCIDENTAL PETE COM 674599105 50,100 50,100 2,473 0.4092
2024-11-14 2024-09-30 13F OCCIDENTAL PETE COM 674599105 0 -26,575 -100.00 0 -100.00
2024-08-14 2024-06-30 13F OCCIDENTAL PETE COM 674599105 26,575 1,700 6.83 1,675 3.65 0.1920
2024-05-15 2024-03-31 13F OCCIDENTAL PETE COM 674599105 24,875 -46,500 -65.15 1,617 -62.07 0.1545
2024-02-14 2023-12-31 13F OCCIDENTAL PETE COM 674599105 71,375 71,375 4,262 0.4525
2022-08-15 2022-06-30 13F OCCIDENTAL PETE COM 674599105 0 -141,653 -100.00 0 -100.00
2022-05-16 2022-03-31 13F OCCIDENTAL PETE COM 674599105 141,653 141,653 8,037 1.1995
2021-05-14 2021-03-31 13F OCCIDENTAL PETE COM 674599105 0 -96,000 -100.00 0 -100.00
2021-02-12 2020-12-31 13F OCCIDENTAL PETE COM 674599105 96,000 54,400 130.77 1,662 299.52 0.4342
2020-11-12 2020-09-30 13F OCCIDENTAL PETE COM 674599105 41,600 41,600 416 0.1016
2020-08-14 2020-06-30 13F OCCIDENTAL PETE COM 674599105 0 -211,482 -100.00 0 -100.00
2020-05-15 2020-03-31 13F OCCIDENTAL PETE COM 674599105 211,482 211,482 2,449 0.5292
2019-08-13 2019-06-30 13F OCCIDENTAL PETE COM 674599105 0 -10,409 -100.00 0 -100.00
2019-05-14 2019-03-31 13F OCCIDENTAL PETE COM 674599105 10,409 6,209 147.83 689 167.05 0.1322
2019-02-13 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 4,200 4,200 258 0.0528
2017-02-13 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 0 -3,400 -100.00 0 -100.00
2016-11-14 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 3,400 -84 -2.41 248 -5.70 0.1628
2016-08-12 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 3,484 3,484 263 0.1573
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.