Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionPinnacle Bancorp, Inc.
Latest Disclosed Ownership504 shares
Latest Disclosed Value $ 32,760
Pinnacle Bancorp, Inc. reports 22.33% increase in ownership of OXY / Occidental Petroleum Corporation

On April 22, 2026 - Pinnacle Bancorp, Inc. filed a 13F-HR form disclosing ownership of 504 shares of Occidental Petroleum Corporation (CH:OXY) valued at $32,760 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 412 shares of Occidental Petroleum Corporation. This represents a change in shares of 22.33% 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)
2026-04-22 2026-03-31 13F Occidental Pete Corp Del Com COM 674599105 504 92 22.33 33 100.00 0.0097
2026-01-22 2025-12-31 13F Occidental Pete Corp Del Com COM 674599105 412 -18 -4.19 17 -20.00 0.0050
2025-10-24 2025-09-30 13F Occidental Pete Corp Del Com COM 674599105 430 0 0.00 20 11.11 0.0060
2025-07-11 2025-06-30 13F Occidental Pete Corp Del Com COM 674599105 430 189 78.42 18 63.64 0.0056
2025-04-23 2025-03-31 13F Occidental Pete Corp Del Com COM 674599105 241 0 0.00 12 0.00 0.0039
2025-01-14 2024-12-31 13F Occidental Pete Corp Del Com COM 674599105 241 -833 -77.56 12 -80.00 0.0039
2024-10-09 2024-09-30 13F Occidental Pete Corp Del Com COM 674599105 1,074 97 9.93 55 -9.84 0.0148
2024-07-15 2024-06-30 13F Occidental Pete Corp Del Com COM 674599105 977 52 5.62 62 1.67 0.0182
2024-04-16 2024-03-31 13F Occidental Pete Corp Del Com COM 674599105 925 0 0.00 60 9.09 0.0178
2024-01-25 2023-12-31 13F Occidental Pete Corp Del Com COM 674599105 925 0 0.00 55 -8.33 0.0181
2023-10-18 2023-09-30 13F Occidental Pete Corp Del Com COM 674599105 925 -1,075 -53.75 60 -48.72 0.0213
2023-07-14 2023-06-30 13F Occidental Pete Corp Del Com COM 674599105 2,000 0 0.00 118 -5.65 0.0402
2023-04-14 2023-03-31 13F Occidental Pete Corp Del Com COM 674599105 2,000 0 0.00 125 0.0458
2023-01-24 2022-12-31 13F Occidental Pete Corp Del Com COM 674599105 2,000 0 0.00 0 -100.00 0.0485
2022-10-25 2022-09-30 13F Occidental Pete Corp Del Com COM 674599105 2,000 0 0.00 123 4.24 0.0531
2022-07-12 2022-06-30 13F Occidental Pete Corp Del Com COM 674599105 2,000 2,000 118 0.0486
2021-07-15 2021-06-30 13F Occidental Pete Corp Del Com COM 674599105 0 -70 -100.00 0 -100.00
2021-04-26 2021-03-31 13F Occidental Pete Corp Del Com COM 674599105 70 -250 -78.12 2 -66.67 0.0010
2021-01-13 2020-12-31 13F Occidental Pete Corp Del Com COM 674599105 320 0 0.00 6 100.00 0.0037
2020-10-13 2020-09-30 13F Occidental Pete Corp Del Com COM 674599105 320 0 0.00 3 -50.00 0.0021
2020-07-07 2020-06-30 13F Occidental Pete Corp Del Com COM 674599105 320 0 0.00 6 50.00 0.0045
2020-04-09 2020-03-31 13F Occidental Pete Corp Del Com COM 674599105 320 70 28.00 4 -60.00 0.0034
2020-01-10 2019-12-31 13F Occidental Pete Corp Del Com COM 674599105 250 0 0.00 10 -9.09 0.0069
2019-10-08 2019-09-30 13F Occidental Pete Corp Del Com COM 674599105 250 0 0.00 11 -15.38 0.0063
2019-07-08 2019-06-30 13F Occidental Pete Corp Del Com COM 674599105 250 0 0.00 13 -23.53 0.0073
2019-04-05 2019-03-31 13F Occidental Pete Corp Del Com COM 674599105 250 -200 -44.44 17 -39.29 0.0099
2019-03-20 2018-12-31 13F Occidental Pete Corp Del Com COM 674599105 450 36 8.70 28 7.69 0.0172
2017-04-17 2017-03-31 13F Occidental Pete Corp Del Com COM 674599105 414 414 26 0.0184
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.