Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionMontag A & Associates Inc
Latest Disclosed Ownership1,078 shares
Latest Disclosed Value $ 70,327
Montag A & Associates Inc reports 12.17% increase in ownership of OXY / Occidental Petroleum Corporation

On April 29, 2026 - Montag A & Associates Inc filed a 13F-HR form disclosing ownership of 1,078 shares of Occidental Petroleum Corporation (CH:OXY) valued at $70,327 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 961 shares of Occidental Petroleum Corporation. This represents a change in shares of 12.17% 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)
2026-04-29 2026-03-31 13F OCCIDENTAL PETE COM 674599105 1,078 117 12.17 70 79.49 0.0033
2026-02-02 2025-12-31 13F OCCIDENTAL PETE COM 674599105 961 0 0.00 40 -13.33 0.0018
2025-11-12 2025-09-30 13F OCCIDENTAL PETE COM 674599105 961 0 0.00 46 12.50 0.0021
2025-08-07 2025-06-30 13F OCCIDENTAL PETE COM 674599105 961 0 0.00 41 -14.89 0.0020
2025-05-05 2025-03-31 13F OCCIDENTAL PETE COM 674599105 961 0 0.00 48 0.00 0.0024
2025-01-30 2024-12-31 13F OCCIDENTAL PETE COM 674599105 961 0 0.00 48 -4.08 0.0023
2024-11-05 2024-09-30 13F OCCIDENTAL PETE COM 674599105 961 -10 -1.03 50 -19.67 0.0023
2024-07-31 2024-06-30 13F OCCIDENTAL PETE COM 674599105 971 0 0.00 61 -3.17 0.0031
2024-05-07 2024-03-31 13F OCCIDENTAL PETE COM 674599105 971 -1,450 -59.89 63 -56.25 0.0032
2024-02-07 2023-12-31 13F OCCIDENTAL PETE COM 674599105 2,421 0 0.00 145 -8.28 0.0081
2023-11-09 2023-09-30 13F OCCIDENTAL PETE COM 674599105 2,421 -280 -10.37 158 -1.26 0.0099
2023-08-09 2023-06-30 13F OCCIDENTAL PETE COM 674599105 2,701 -220 -7.53 159 -12.64 0.0098
2023-05-11 2023-03-31 13F OCCIDENTAL PETE COM 674599105 2,921 0 0.00 183 -1.09 0.0120
2023-02-02 2022-12-31 13F OCCIDENTAL PETE COM 674599105 2,921 0 0.00 184 2.22 0.0123
2022-11-09 2022-09-30 13F OCCIDENTAL PETE COM 674599105 2,921 1,400 92.04 180 100.00 0.0125
2022-08-10 2022-06-30 13F OCCIDENTAL PETE COM 674599105 1,521 0 0.00 90 4.65 0.0058
2022-05-02 2022-03-31 13F OCCIDENTAL PETE COM 674599105 1,521 -1,739 -53.34 86 -9.47 0.0046
2022-02-09 2021-12-31 13F OCCIDENTAL PETE COM 674599105 3,260 0 0.00 95 -1.04 0.0047
2021-11-08 2021-09-30 13F OCCIDENTAL PETE COM 674599105 3,260 0 0.00 96 -5.88 0.0052
2021-08-03 2021-06-30 13F OCCIDENTAL PETE COM 674599105 3,260 0 0.00 102 17.24 0.0054
2021-05-14 2021-03-31 13F OCCIDENTAL PETE COM 674599105 3,260 0 0.00 87 55.36 0.0049
2021-02-12 2020-12-31 13F OCCIDENTAL PETE COM 674599105 3,260 3,260 56 0.0034
2019-08-06 2019-06-30 13F OCCIDENTAL PETE CP DEL COM 674599105 0 -3,210 -100.00 0 -100.00
2019-05-01 2019-03-31 13F OCCIDENTAL PETE CP DEL COM 674599105 3,210 -670 -17.27 213 -10.50 0.0197
2019-02-06 2018-12-31 13F OCCIDENTAL PETE CP DEL COM 674599105 3,880 -7,961 -67.23 238 -75.54 0.0256
2018-11-07 2018-09-30 13F OCCIDENTAL PETE CP DEL COM 674599105 11,841 11,841 973 0.0852
2015-11-06 2015-09-30 13F OCCIDENTAL PETE CP DEL COM 674599105 0 -83,235 -100.00 0 -100.00
2015-08-17 2015-06-30 13F OCCIDENTAL PETE CP DEL COM 674599105 83,235 -2,767 -3.22 6,473 3.11 0.9425
2015-05-12 2015-03-31 13F OCCIDENTAL PETE CP DEL COM 674599105 86,002 86,002 6,278 0.9083
2015-02-04 2014-12-31 13F OCCIDENTAL PETE CP DEL COM 674599105 0 -29,060 -100.00 0 -100.00
2014-11-04 2014-09-30 13F OCCIDENTAL PETE CP DEL COM 674599105 29,060 8,550 41.69 2,794 32.73 0.4609
2014-08-06 2014-06-30 13F OCCIDENTAL PETE CP DEL COM 674599105 20,510 20,510 2,105 0.3432
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.