Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionCertified Advisory Corp
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Certified Advisory Corp closes position in OXY / Occidental Petroleum Corporation

On April 17, 2026 - Certified Advisory Corp filed a 13F-HR form disclosing ownership of 0 shares of Occidental Petroleum Corporation (US:OXY) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 15,605 shares of Occidental Petroleum Corporation. The current value of the position is $0 USD.

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)
2026-04-17 2026-03-31 13F OCCIDENTAL PETE COM 674599105 0 -100.00 0
2026-01-12 2025-12-31 13F OCCIDENTAL PETE COM 674599105 15,605 348 2.28 642 -10.97 0.0585
2025-11-13 2025-09-30 13F OCCIDENTAL PETE COM 674599105 15,257 -145 -0.94 721 11.28 0.0685
2025-08-14 2025-06-30 13F OCCIDENTAL PETE COM 674599105 15,402 968 6.71 647 -9.13 0.0673
2025-05-08 2025-03-31 13F OCCIDENTAL PETE COM 674599105 14,434 4,801 49.84 712 49.89 0.0807
2025-01-15 2024-12-31 13F OCCIDENTAL PETE COM 674599105 9,633 9,633 476 0.0517
2021-08-16 2021-06-30 13F OCCIDENTAL PETE CORP COM Stock 674599105 0 -1,723 -100.00 0 -100.00
2021-05-10 2021-03-31 13F OCCIDENTAL PETE CORP COM Stock 674599105 1,723 -6,254 -78.40 46 -68.49 0.0119
2020-07-27 2020-06-30 13F OCCIDENTAL PETE CORP COM Stock 674599105 7,977 -263 -3.19 146 53.68 0.0483
2020-04-27 2020-03-31 13F OCCIDENTAL PETE CORP COM Stock 674599105 8,240 -986 -10.69 95 -75.00 0.0375
2020-01-29 2019-12-31 13F OCCIDENTAL PETE CORP COM Stock 674599105 9,226 -7,942 -46.26 380 -50.20 0.1215
2019-11-12 2019-09-30 13F OCCIDENTAL PETE CORP COM Stock 674599105 17,168 3,215 23.04 763 8.69 0.2651
2019-08-07 2019-06-30 13F OCCIDENTAL PETE CORP COM Stock 674599105 13,953 8,380 150.37 702 90.24 0.2610
2019-05-07 2019-03-31 13F OCCIDENTAL PETE CORP COM Stock 674599105 5,573 3,046 120.54 369 138.06 0.1550
2019-02-04 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM Stock 674599105 2,527 2,350 1,327.68 155 933.33 0.0804
2018-11-13 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM Stock 674599105 177 5 2.91 15 7.14 0.0069
2018-08-13 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM COM 674599105 172 1 0.58 14 27.27 0.0078
2018-04-30 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM COM 674599105 171 0 0.00 11 -8.33 0.0065
2018-02-22 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM COM 674599105 171 171 12 0.0086
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.