Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionWhittier Trust Co
Latest Disclosed Ownership6,831 shares
Latest Disclosed Value $ 430,080
Whittier Trust Co ownership in OXY / Occidental Petroleum Corporation

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 6,831 shares of Occidental Petroleum Corporation (US:OXY) valued at $444,015 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 6,831 shares of Occidental Petroleum Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $407,401 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)
2026-04-28 2026-03-31 13F OCCIDENTAL PETE common 674599105 6,831 0 0.00 430 50.88 0.0049
2026-01-26 2025-12-31 13F OCCIDENTAL PETE common 674599105 6,831 0 0.00 285 -6.86 0.0031
2025-10-31 2025-09-30 13F OCCIDENTAL PETE common 674599105 6,831 300 4.59 306 11.68 0.0035
2025-07-30 2025-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,531 280 4.48 274 -11.04 0.0033
2025-05-02 2025-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,251 -100 -1.57 309 -1.60 0.0043
2025-02-11 2024-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,351 33 0.52 314 -3.69 0.0041
2024-10-21 2024-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,318 -415 -6.16 326 -23.35 0.0044
2024-07-29 2024-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,733 110 1.66 424 -1.40 0.0060
2024-05-02 2024-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,623 -96 -1.43 430 7.23 0.0063
2024-01-11 2023-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,719 491 7.88 401 -0.74 0.0065
2023-10-27 2023-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,228 120 1.96 404 12.53 0.0072
2023-07-24 2023-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,108 -209 -3.31 359 -8.88 0.0062
2023-04-21 2023-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,317 -40 -0.63 394 -1.50 0.0072
2023-01-25 2022-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,357 0 0.00 400 2.30 0.0078
2022-10-21 2022-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,357 6,159 3,110.61 391 3,158.33 0.0082
2022-07-28 2022-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 198 55 38.46 12 50.00 0.0002
2022-04-29 2022-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 143 -157 -52.33 8 -11.11 0.0001
2022-01-19 2021-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 300 0 0.00 9 0.00 0.0001
2021-11-01 2021-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 300 250 500.00 9 350.00 0.0002
2021-07-29 2021-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 50 0 0.00 2 100.00 0.0000
2021-04-26 2021-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 50 -1,058 -95.49 1 -94.74 0.0000
2021-01-29 2020-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 1,108 -779 -41.28 19 0.00 0.0004
2020-10-30 2020-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 1,887 -2,940 -60.91 19 -78.41 0.0005
2020-07-10 2020-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 4,827 -1,308 -21.32 88 23.94 0.0024
2020-04-27 2020-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,135 -631 -9.33 71 -74.55 0.0023
2020-01-31 2019-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 6,766 -1,793 -20.95 279 -26.58 0.0073
2019-10-18 2019-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 8,559 1,512 21.46 380 7.34 0.0109
2019-07-23 2019-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 7,047 -88 -1.23 354 -25.00 0.0104
2019-04-29 2019-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 7,135 -821 -10.32 472 -3.28 0.0144
2019-02-07 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 7,956 290 3.78 488 -22.54 0.0168
2018-10-23 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 7,666 -532 -6.49 630 -8.16 0.0197
2018-07-27 2018-06-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 8,198 -1,026 -11.12 686 14.52 0.0227
2018-07-20 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 38,960 29,736 3,998
2018-05-01 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 9,224 -415 -4.31 599 -15.63 0.0201
2018-02-07 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 9,639 -3,328 -25.67 710 -14.77 0.0248
2017-10-23 2017-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 12,967 -53 -0.41 833 6.93 0.0304
2017-07-20 2017-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE-CAP EQUITIES 674599105 13,020 -2,464 -15.91 779 -20.67 0.0301
2017-04-26 2017-03-31 13F OCCIDENTAL PETE CORP DEL US LARGE CAP EQUITIES 674599105 15,484 1,582 11.38 982 -0.81 0.0396
2017-01-18 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 13,902 -316 -2.22 990 -4.53 0.0421
2016-11-10 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 14,218 -2,433 -14.61 1,037 -17.57 0.0452
2016-07-28 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 16,651 -29,391 -63.84 1,258 -60.06 0.0554
2016-04-28 2016-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 46,042 7,708 20.11 3,150 21.53 0.1393
2016-02-10 2015-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 38,334 -3,992 -9.43 2,592 -7.43 0.1176
2015-11-12 2015-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 42,326 -566 -1.32 2,800 -16.04 0.1362
2015-08-13 2015-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 42,892 2,354 5.81 3,335 12.71 0.1480
2015-05-05 2015-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 40,538 40,538 0.00 2,959 0.1356
2015-02-04 2014-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 0 -39,602 -100.00 0 -100.00
2014-11-07 2014-09-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 39,602 642 1.65 3,808 -4.75 0.1856
2014-08-04 2014-06-30 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 38,960 -831 -2.09 3,998 5.43 0.1971
2014-05-01 2014-03-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 39,791 270 0.68 3,792 0.90 0.1943
2014-02-05 2013-12-31 13F OCCIDENTAL PETE CORP DEL COM US LARGE CAP EQUITIES 674599105 39,521 -632 -1.57 3,758 0.08 0.1927
2013-11-18 2013-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 40,153 -153 -0.38 3,755 4.42 0.2032
2013-08-14 2013-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 40,306 40,306 3,596 0.2015
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.