Occidental Petroleum Corporation
BG ˙ BUL ˙ US6745991058
SecurityBG:OPC / Occidental Petroleum Corporation
InstitutionCommerce Bank
Latest Disclosed Ownership18,773 shares
Latest Disclosed Value $ 1,220,245
Commerce Bank reports 0.54% increase in ownership of OPC / Occidental Petroleum Corporation

On May 11, 2026 - Commerce Bank filed a 13F-HR form disclosing ownership of 18,773 shares of Occidental Petroleum Corporation (BG:OPC) valued at $1,220,245 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 18,673 shares of Occidental Petroleum Corporation. This represents a change in shares of 0.54% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-11 2026-03-31 13F OCCIDENTAL PETE COM 674599105 18,773 100 0.54 1,220 59.06 0.0025
2026-02-13 2025-12-31 13F OCCIDENTAL PETE COM 674599105 18,673 -2,079 -10.02 768 -21.73 0.0042
2025-11-12 2025-09-30 13F OCCIDENTAL PETE COM 674599105 20,752 -946 -4.36 981 7.57 0.0055
2025-08-07 2025-06-30 13F OCCIDENTAL PETE COM 674599105 21,698 236 1.10 912 -13.98 0.0054
2025-05-08 2025-03-31 13F OCCIDENTAL PETE COM 674599105 21,462 -8,327 -27.95 1,059 -28.01 0.0068
2025-02-13 2024-12-31 13F OCCIDENTAL PETE COM 674599105 29,789 -457 -1.51 1,472 -5.58 0.0091
2024-11-08 2024-09-30 13F OCCIDENTAL PETE COM 674599105 30,246 1,181 4.06 1,559 -14.91 0.0096
2024-08-12 2024-06-30 13F OCCIDENTAL PETE COM 674599105 29,065 -110 -0.38 1,832 -3.43 0.0119
2024-05-03 2024-03-31 13F OCCIDENTAL PETE COM 674599105 29,175 -1,984 -6.37 1,896 1.94 0.0125
2024-02-09 2023-12-31 13F OCCIDENTAL PETE COM 674599105 31,159 271 0.88 1,861 -7.19 0.0132
2023-11-14 2023-09-30 13F OCCIDENTAL PETE COM 674599105 30,888 -895 -2.82 2,004 7.28 0.0158
2023-08-08 2023-06-30 13F OCCIDENTAL PETE COM 674599105 31,783 -7,932 -19.97 1,869 -24.65 0.0140
2023-05-04 2023-03-31 13F OCCIDENTAL PETE COM 674599105 39,715 1,314 3.42 2,479 2.52 0.0194
2023-02-10 2022-12-31 13F OCCIDENTAL PETE COM 674599105 38,401 5,241 15.81 2,419 18.65 0.0197
2022-11-04 2022-09-30 13F OCCIDENTAL PETE COM 674599105 33,160 5,020 17.84 2,038 22.99 0.0177
2022-08-12 2022-06-30 13F OCCIDENTAL PETE COM 674599105 28,140 -22,857 -44.82 1,657 -42.74 0.0135
2022-05-09 2022-03-31 13F OCCIDENTAL PETE COM 674599105 50,997 -3,959 -7.20 2,894 81.67 0.0198
2022-02-14 2021-12-31 13F OCCIDENTAL PETE COM 674599105 54,956 -3,259 -5.60 1,593 -7.49 0.0104
2021-11-09 2021-09-30 13F OCCIDENTAL PETE COM 674599105 58,215 12,216 26.56 1,722 19.75 0.0122
2021-08-09 2021-06-30 13F OCCIDENTAL PETE COM 674599105 45,999 482 1.06 1,438 18.65 0.0102
2021-05-05 2021-03-31 13F OCCIDENTAL PETE COM 674599105 45,517 16,260 55.58 1,212 139.05 0.0092
2021-02-09 2020-12-31 13F OCCIDENTAL PETE COM 674599105 29,257 -18 -0.06 507 73.04 0.0041
2020-11-06 2020-09-30 13F OCCIDENTAL PETE COM 674599105 29,275 3,486 13.52 293 -37.79 0.0026
2020-08-07 2020-06-30 13F OCCIDENTAL PETE COM 674599105 25,789 -14,280 -35.64 471 1.51 0.0046
2020-05-08 2020-03-31 13F OCCIDENTAL PETE COM 674599105 40,069 -12,842 -24.27 464 -78.73 0.0056
2020-02-14 2019-12-31 13F OCCIDENTAL PETE COM 674599105 52,911 -2,019 -3.68 2,181 -10.72 0.0208
2019-11-12 2019-09-30 13F OCCIDENTAL PETE COM 674599105 54,930 4,743 9.45 2,443 -3.21 0.0251
2019-08-07 2019-06-30 13F OCCIDENTAL PETE COM 674599105 50,187 -5,768 -10.31 2,524 -31.86 0.0283
2019-05-08 2019-03-31 13F OCCIDENTAL PETE COM 674599105 55,955 -7,781 -12.21 3,704 -5.32 0.0439
2019-02-11 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 63,736 -28,361 -30.79 3,912 -48.30 0.0498
2018-11-02 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 92,097 3,929 4.46 7,567 2.56 0.0901
2018-08-08 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 88,168 -8,719 -9.00 7,378 17.22 0.0938
2018-05-03 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 96,887 -1,991 -2.01 6,294 -13.58 0.0831
2018-02-12 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 98,878 -4,939 -4.76 7,283 9.24 0.0948
2017-11-07 2017-09-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 103,817 6,943 7.17 6,667 14.95 0.0906
2017-11-07 2017-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 96,874 5,800
2017-08-08 2017-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 96,874 -5,795 -5.64 5,800 -10.84 0.0813
2017-05-05 2017-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 102,669 5,452 5.61 6,505 -6.05 0.0927
2017-02-08 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 97,217 2,148 2.26 6,924 -0.12 0.1034
2016-11-03 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 95,069 -8,631 -8.32 6,932 -11.53 0.1079
2016-08-09 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 103,700 -2,342 -2.21 7,835 7.98 0.1239
2016-04-27 2016-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 106,042 -1,354 -1.26 7,256 -0.07 0.1205
2016-02-12 2015-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 107,396 -9,447 -8.09 7,261 -6.06 0.1215
2015-11-10 2015-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 116,843 -7,634 -6.13 7,729 -20.16 0.1329
2015-08-03 2015-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 124,477 -33,573 -21.24 9,681 -16.09 0.1516
2015-05-06 2015-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 158,050 -18,060 -10.25 11,538 -18.72 0.1793
2015-02-11 2014-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 176,110 -119,731 -40.47 14,196 -50.09 0.2244
2014-11-06 2014-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 295,841 41,103 16.14 28,445 8.80 0.4694
2014-08-05 2014-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 254,738 2,361 0.94 26,144 8.71 0.4272
2014-05-09 2014-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 252,377 20,135 8.67 24,049 8.89 0.4094
2014-02-14 2013-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 232,242 13,419 6.13 22,086 7.90 0.3825
2013-11-05 2013-09-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 179,257 -39,690 16,966 0.3060
2013-11-05 2013-09-30 13F/A-2 OCCIDENTAL PETE CORP DEL COM 674599105 218,823 -124 -0.06 20,469 4.77 0.3692
2013-11-04 2013-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 179,257 16,966
2013-08-07 2013-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 218,947 5,963 2.80 19,537 17.04 0.3633
2013-08-08 2013-03-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 212,984 212,984 16,692 0.3257
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.