Occidental Petroleum Corporation
BG ˙ BUL ˙ US6745991058
SecurityBG:OPC / Occidental Petroleum Corporation
InstitutionOMERS ADMINISTRATION Corp
Latest Disclosed Ownership31,609 shares
Latest Disclosed Value $ 2,054,585
OMERS ADMINISTRATION Corp reports 33.92% increase in ownership of OPC / Occidental Petroleum Corporation

On May 15, 2026 - OMERS ADMINISTRATION Corp filed a 13F-HR form disclosing ownership of 31,609 shares of Occidental Petroleum Corporation (BG:OPC) valued at $2,054,585 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 23,603 shares of Occidental Petroleum Corporation. This represents a change in shares of 33.92% 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)
2026-05-15 2026-03-31 13F OCCIDENTAL PETE COM 674599105 31,609 8,006 33.92 2,055 111.75 0.0132
2026-02-13 2025-12-31 13F OCCIDENTAL PETE COM 674599105 23,603 0 0.00 971 -13.00 0.0069
2025-11-14 2025-09-30 13F OCCIDENTAL PETE COM 674599105 23,603 -3,099 -11.61 1,115 -0.54 0.0080
2025-08-13 2025-06-30 13F OCCIDENTAL PETE COM 674599105 26,702 0 0.00 1,122 -14.95 0.0088
2025-05-14 2025-03-31 13F OCCIDENTAL PETE COM 674599105 26,702 -928 -3.36 1,318 -3.44 0.0115
2025-02-14 2024-12-31 13F OCCIDENTAL PETE COM 674599105 27,630 4,808 21.07 1,365 16.07 0.0119
2024-11-13 2024-09-30 13F OCCIDENTAL PETE COM 674599105 22,822 0 0.00 1,176 -18.22 0.0108
2024-08-13 2024-06-30 13F OCCIDENTAL PETE COM 674599105 22,822 22,822 1,438 0.0139
2017-02-09 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 0 -20,500 -100.00 0 -100.00
2016-11-14 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 20,500 9,000 78.26 1,495 72.04 0.0266
2016-08-11 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 11,500 11,500 869 0.0179
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.