Occidental Petroleum Corporation
BG ˙ BUL ˙ US6745991058
SecurityBG:OPC / Occidental Petroleum Corporation
InstitutionGrimes & Company, Inc.
Latest Disclosed Ownership3,735 shares
Latest Disclosed Value $ 242,780
Grimes & Company, Inc. ownership in OPC / Occidental Petroleum Corporation

On April 21, 2026 - Grimes & Company, Inc. filed a 13F-HR form disclosing ownership of 3,735 shares of Occidental Petroleum Corporation (BG:OPC) valued at $242,780 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2025 disclosing 0 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)
2026-04-21 2026-03-31 13F OCCIDENTAL PETE COM 674599105 3,735 3,735 243 0.0056
2025-01-21 2024-12-31 13F OCCIDENTAL PETE COM 674599105 0 -4,133 -100.00 0 -100.00
2024-10-22 2024-09-30 13F OCCIDENTAL PETE COM 674599105 4,133 296 7.71 213 -11.62 0.0058
2024-07-22 2024-06-30 13F OCCIDENTAL PETE COM 674599105 3,837 696 22.16 242 18.14 0.0072
2024-04-17 2024-03-31 13F OCCIDENTAL PETE COM 674599105 3,141 3,141 204 0.0063
2024-01-24 2023-12-31 13F OCCIDENTAL PETE COM 674599105 0 -3,601 -100.00 0 -100.00
2023-10-19 2023-09-30 13F OCCIDENTAL PETE COM 674599105 3,601 -1,512 -29.57 234 -22.33 0.0090
2023-07-19 2023-06-30 13F OCCIDENTAL PETE COM 674599105 5,113 1,466 40.20 301 32.16 0.0107
2023-04-20 2023-03-31 13F OCCIDENTAL PETE COM 674599105 3,647 9 0.25 228 -0.87 0.0093
2023-01-25 2022-12-31 13F OCCIDENTAL PETE COM 674599105 3,638 49 1.37 229 3.62 0.0097
2022-10-28 2022-09-30 13F OCCIDENTAL PETE COM 674599105 3,589 2 0.06 221 4.74 0.0115
2022-07-22 2022-06-30 13F OCCIDENTAL PETE COM 674599105 3,587 -3 -0.08 211 3.43 0.0106
2022-05-06 2022-03-31 13F OCCIDENTAL PETE COM 674599105 3,590 3,590 204 0.0095
2020-05-05 2020-03-31 13F Occidental Petroleum Corporati COM 674599105 0 -64,064 -100.00 0 -100.00
2020-02-05 2019-12-31 13F Occidental Petroleum Corporati COM 674599105 64,064 -7,068 -9.94 2,640 -16.53 0.1730
2019-11-05 2019-09-30 13F Occidental Petroleum Corporati COM 674599105 71,132 4,840 7.30 3,163 -5.10 0.2253
2019-07-30 2019-06-30 13F Occidental Petroleum Corporati COM 674599105 66,292 4,631 7.51 3,333 -18.35 0.2529
2019-05-02 2019-03-31 13F Occidental Petroleum Corporati COM 674599105 61,661 2,744 4.66 4,082 12.89 0.3200
2019-02-01 2018-12-31 13F Occidental Petroleum Corporati COM 674599105 58,917 -4,431 -6.99 3,616 -30.53 0.3529
2018-11-09 2018-09-30 13F Occidental Petroleum Corporati COM 674599105 63,348 4,161 7.03 5,205 5.09 0.4167
2018-08-10 2018-06-30 13F Occidental Petroleum Corporati COM 674599105 59,187 -1,596 -2.63 4,953 25.46 0.4378
2018-05-07 2018-03-31 13F Occidental Petroleum Corporati COM 674599105 60,783 988 1.65 3,948 -10.37 0.3825
2018-02-05 2017-12-31 13F Occidental Petroleum Corporati COM 674599105 59,795 3,568 6.35 4,405 22.02 0.4252
2017-11-03 2017-09-30 13F Occidental Petroleum Corporati COM 674599105 56,227 1,028 1.86 3,610 9.23 0.3838
2017-07-18 2017-06-30 13F Occidental Petroleum Corporati COM 674599105 55,199 1,211 2.24 3,305 -3.39 0.3687
2017-05-01 2017-03-31 13F Occidental Petroleum Corporati COM 674599105 53,988 791 1.49 3,421 -9.71 0.3747
2017-01-24 2016-12-31 13F Occidental Petroleum Corporati COM 674599105 53,197 -5,875 -9.95 3,789 -12.05 0.4395
2016-10-24 2016-09-30 13F Occidental Petroleum Corporati COM 674599105 59,072 38 0.06 4,308 -3.43 0.5766
2016-07-25 2016-06-30 13F Occidental Petroleum Corporati COM 674599105 59,034 5,779 10.85 4,461 22.39 0.5962
2016-04-25 2016-03-31 13F Occidental Petroleum Corporati COM 674599105 53,255 -736 -1.36 3,645 -0.14 0.4689
2016-02-03 2015-12-31 13F Occidental Petroleum Corporati COM 674599105 53,991 -634 -1.16 3,650 1.00 0.4929
2015-10-08 2015-09-30 13F Occidental Petroleum Corporati COM 674599105 54,625 852 1.58 3,614 -13.58 0.4650
2015-08-11 2015-06-30 13F Occidental Petroleum Corporati COM 674599105 53,773 1,297 2.47 4,182 9.19 0.5890
2015-04-24 2015-03-31 13F Occidental Petroleum Corporati COM 674599105 52,476 2,866 5.78 3,830 -4.23 0.9206
2015-02-12 2014-12-31 13F Occidental Petroleum Corporati COM 674599105 49,610 -24,803 -33.33 3,999 -44.11 1.0337
2014-11-06 2014-09-30 13F Occidental Petroleum Corporati COM 674599105 74,413 1,581 2.17 7,155 -4.28 1.8726
2014-07-28 2014-06-30 13F Occidental Petroleum Corporati COM 674599105 72,832 2,096 2.96 7,475 10.89 1.9585
2014-05-01 2014-03-31 13F Occidental Petroleum Corporati COM 674599105 70,736 3,161 4.68 6,741 4.89 1.8933
2014-02-03 2013-12-31 13F Occidental Petroleum Corporati COM 674599105 67,575 2,688 4.14 6,427 5.90 1.9207
2013-10-29 2013-09-30 13F Occidental Petroleum Corporati COM 674599105 64,887 2,537 4.07 6,069 9.10 2.0529
2013-07-30 2013-06-30 13F Occidental Petroleum Corporati COM 674599105 62,350 62,350 5,563 2.0288
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.