Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionField & Main Bank
Latest Disclosed Ownership100 shares
Latest Disclosed Value $ 6,500
Field & Main Bank ownership in OXY / Occidental Petroleum Corporation

On April 10, 2026 - Field & Main Bank filed a 13F-HR form disclosing ownership of 100 shares of Occidental Petroleum Corporation (US:OXY) valued at $6,500 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 100 shares of Occidental Petroleum Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $5,867 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)
2026-04-10 2026-03-31 13F Occidental Petroleum Com 674599105 100 0 0.00 6 50.00 0.0011
2026-01-28 2025-12-31 13F Occidental Petroleum Com 674599105 100 100 4 0.0012
2020-10-22 2020-09-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 0 -300 -100.00 0 -100.00
2020-08-12 2020-06-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 0 0.00 5 -58.33 0.0043
2020-02-05 2019-12-31 13F/A-1 OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 -578 -65.83 12 -69.23 0.0100
2020-02-03 2019-12-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 -578 12 7,309.4072
2019-11-07 2019-09-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 878 -322 -26.83 39 -35.00 0.0352
2019-07-22 2019-06-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 1,200 0 0.00 60 -24.05 0.0551
2019-04-24 2019-03-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 1,200 -500 -29.41 79 -43.57 0.0745
2018-10-23 2018-09-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 1,700 -150 -8.11 140 -9.68 0.1250
2018-08-13 2018-06-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 1,850 -350 -15.91 155 8.39 0.1412
2018-05-01 2018-03-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 2,200 -50 -2.22 143 -13.86 0.1395
2018-01-24 2017-12-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 2,250 1,950 650.00 166 621.74 0.1593
2015-07-22 2015-06-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 0 0.00 23 4.55 0.0218
2015-04-30 2015-03-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 300 0.00 22 0.0204
2015-02-03 2014-12-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 0 -300 -100.00 0 -100.00
2014-10-14 2014-09-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 0 0.00 29 -6.45 0.0273
2014-08-11 2014-06-30 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 0 0.00 31 6.90 0.0290
2014-04-17 2014-03-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 0 0.00 29 0.00 0.0280
2014-02-13 2013-12-31 13F OCCIDENTAL PETROLEUM COMMON STOCK - LARGE CAP 674599105 300 300 29 0.0282
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.