Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionBartlett & Co. Wealth Management Llc
Latest Disclosed Ownership217 shares
Latest Disclosed Value $ 13,079
Bartlett & Co. Wealth Management Llc reports 15.43% increase in ownership of OXY / Occidental Petroleum Corporation

On May 6, 2026 - Bartlett & Co. Wealth Management Llc filed a 13F-HR form disclosing ownership of 217 shares of Occidental Petroleum Corporation (US:OXY) valued at $14,105 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 188 shares of Occidental Petroleum Corporation. This represents a change in shares of 15.43% during the quarter. The current value of the position is $12,354 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)
2026-05-06 2026-03-31 13F Occidental Petrol COM 674599105 217 29 15.43 13 62.50 0.0002
2026-01-22 2025-12-31 13F Occidental Petrol COM 674599105 188 -1,628 -89.65 8 -90.70 0.0001
2025-10-09 2025-09-30 13F Occidental Petrol COM 674599105 1,816 79 4.55 86 17.81 0.0011
2025-07-18 2025-06-30 13F Occidental Petrol COM 674599105 1,737 0 0.00 73 -15.12 0.0010
2025-04-24 2025-03-31 13F Occidental Petrol COM 674599105 1,737 1,635 1,602.94 86 1,620.00 0.0013
2025-01-17 2024-12-31 13F Occidental Petrol COM 674599105 102 0 0.00 5 0.00 0.0001
2024-10-17 2024-09-30 13F Occidental Petrol COM 674599105 102 0 0.00 5 -16.67 0.0001
2024-07-12 2024-06-30 13F Occidental Petrol COM 674599105 102 -28 -21.54 6 -25.00 0.0001
2024-05-09 2024-03-31 13F Occidental Petrol COM 674599105 130 0 0.00 8 14.29 0.0001
2024-02-14 2023-12-31 13F Occidental Petrol COM 674599105 130 -43 -24.86 8 -36.36 0.0001
2024-02-14 2023-09-30 13F Occidental Petrol COM 674599105 173 0 0.00 11 10.00 0.0002
2024-02-14 2023-06-30 13F Occidental Petrol COM 674599105 173 0 0.00 10 0.00 0.0002
2024-02-14 2023-03-31 13F Occidental Petrol COM 674599105 173 -72 -29.39 11 -33.33 0.0002
2024-02-14 2022-12-31 13F Occidental Petrol COM 674599105 245 100 68.97 15 87.50 0.0003
2024-02-14 2022-09-30 13F Occidental Petrol COM 674599105 145 0 0.00 9 0.00 0.0002
2024-02-14 2022-06-30 13F Occidental Petrol COM 674599105 145 43 42.16 9 60.00 0.0002
2024-02-14 2022-03-31 13F Occidental Petrol COM 674599105 102 102 6 0.0001
2024-02-14 2021-12-31 13F Occidental Petroleum COM 674599105 0 -202 -100.00 0 -100.00
2024-02-14 2021-09-30 13F Occidental Petroleum COM 674599105 202 -64 -24.06 6 -37.50 0.0001
2024-02-14 2021-06-30 13F Occidental Petroleum COM 674599105 266 0 0.00 8 14.29 0.0002
2024-02-14 2021-03-31 13F Occidental Petroleum COM 674599105 266 102 62.20 7 250.00 0.0001
2024-02-13 2020-12-31 13F Occidental Petroleum COM 674599105 164 32 24.24 3 100.00 0.0001
2024-02-13 2020-09-30 13F Occidental Petroleum COM 674599105 132 -498 -79.05 1 -90.91 0.0000
2024-02-13 2020-06-30 13F Occidental Petroleum COM 674599105 630 -79 -11.14 12 37.50 0.0003
2024-02-13 2020-03-31 13F Occidental Petroleum COM 674599105 709 -648 -47.75 9 -85.71 0.0003
2024-02-13 2019-12-31 13F Occidental Petroleum COM 674599105 1,357 -357 -20.83 57 -27.27 0.0014
2024-02-13 2019-09-30 13F Occidental Petroleum COM 674599105 1,714 1,652 2,664.52 78 2,466.67 0.0020
2024-02-13 2019-06-30 13F Occidental Petroleum COM 674599105 62 62 3 0.0001
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.