Occidental Petroleum Corporation
CH ˙ BRSE ˙ US6745991058
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityCH:OPC / Occidental Petroleum Corporation
InstitutionChelsea Counsel Co
Latest Disclosed Ownership12 shares
Latest Disclosed Value $ 784
Chelsea Counsel Co ownership in OPC / Occidental Petroleum Corporation

On June 4, 2026 - Chelsea Counsel Co filed a 13F-HR/A form disclosing ownership of 12 shares of Occidental Petroleum Corporation (CH:OPC) valued at $784 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 24, 2026 disclosing 12 shares of Occidental Petroleum Corporation.

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)
2026-06-04 2026-03-31 13F/A-1 OCCIDENTAL PETE COM 674599105 12 0 0.00 1 0.0003
2026-04-23 2026-03-31 13F OCCIDENTAL PETE COM 674599105 12 0 0 0.0002
2026-02-24 2025-12-31 13F OCCIDENTAL PETE COM 674599105 12 0 0.00 0 0.0002
2025-11-25 2025-09-30 13F OCCIDENTAL PETE COM 674599105 12 0 0.00 1 0.0003
2025-07-18 2025-06-30 13F OCCIDENTAL PETE COM 674599105 12 12 1 0.0003
2020-03-23 2019-12-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 0 -251 -100.00 0 0.0000
2020-03-23 2019-09-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 251 251 0
2017-04-20 2017-03-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 0 -3,200 -100.00 0 -100.00
2017-04-20 2016-12-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,200 0 0.00 228 -2.15 0.1198
2016-11-01 2016-09-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,200 -500 -13.51 233 -16.79 0.1192
2016-11-01 2016-06-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,700 -1,500 -28.85 280 -21.35 0.1265
2016-06-01 2016-03-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 5,200 0 0.00 356 1.14 0.1146
2016-04-07 2015-12-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 5,200 -1,118 -17.70 352 -15.79 0.1062
2015-12-22 2015-09-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 6,318 0 0.00 418 -14.87 0.0995
2015-08-31 2015-06-30 13F/A-1 OCCIDENTAL PETROLEUM COMMON 674599105 3,216 -3,102 330 63,206.2823
2015-09-10 2015-06-30 13F/A-2 OCCIDENTAL PETROLEUM COMMON 674599105 6,318 0 0.00 491 6.51 0.1099
2015-08-28 2015-06-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,216 330
2015-05-29 2015-03-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 6,318 -16 -0.25 461 -9.78 0.0992
2015-05-29 2014-12-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 6,334 0 0.00 511 -16.09 0.1052
2014-12-16 2014-09-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 6,334 3,118 96.95 609 84.55 0.1215
2014-09-04 2014-06-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,216 -300 -8.53 330 -1.49 0.0644
2014-07-08 2014-03-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,516 1,000 39.75 335 40.17 0.0680
2014-03-24 2013-12-31 13F OCCIDENTAL PETROLEUM COMMON 674599105 2,516 -1,429 -36.22 239 -35.23 0.0566
2013-11-14 2013-09-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,945 0 0.00 369 4.83 0.0765
2013-11-14 2013-06-30 13F OCCIDENTAL PETROLEUM COMMON 674599105 3,945 3,945 352 0.0924
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.