Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionNational Asset Management, Inc.
Latest Disclosed Ownership5,143 shares
Latest Disclosed Value $ 340,656
National Asset Management, Inc. reports 17.22% decrease in ownership of OXY / Occidental Petroleum Corporation

On April 24, 2026 - National Asset Management, Inc. filed a 13F-HR form disclosing ownership of 5,143 shares of Occidental Petroleum Corporation (US:OXY) valued at $334,295 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,213 shares of Occidental Petroleum Corporation. This represents a change in shares of -17.22% during the quarter. The current value of the position is $292,791 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)
2026-04-24 2026-03-31 13F OCCIDENTAL PETE COM 674599105 5,143 -1,070 -17.22 341 33.33 0.0216
2026-02-17 2025-12-31 13F OCCIDENTAL PETE COM 674599105 6,213 -412 -6.22 255 -18.53 0.0118
2025-10-31 2025-09-30 13F OCCIDENTAL PETE COM 674599105 6,625 -1,350 -16.93 313 -6.57 0.0145
2025-08-19 2025-06-30 13F OCCIDENTAL PETE COM 674599105 7,975 -155 -1.91 335 -16.87 0.0157
2025-02-25 2024-12-31 13F OCCIDENTAL PETE COM 674599105 8,130 -2,189 -21.21 403 -25.65 0.0132
2024-12-13 2024-09-30 13F OCCIDENTAL PETE COM 674599105 10,319 -6,566 -38.89 543 -49.20 0.0151
2024-12-13 2024-09-30 13F OCCIDENTAL PETE COM 674599105 10,319 -6,566 543 0.0151
2024-08-19 2024-06-30 13F OCCIDENTAL PETE COM 674599105 16,885 -3,199 -15.93 1,068 -18.30 0.0272
2024-05-16 2024-03-31 13F OCCIDENTAL PETE COM 674599105 20,084 2,780 16.07 1,306 26.06 0.0353
2024-03-15 2023-12-31 13F OCCIDENTAL PETE COM 674599105 17,304 -2,780 -13.84 1,036 -20.67 0.0279
2023-12-01 2023-09-30 13F OCCIDENTAL PETE COM 674599105 20,084 56 0.28 1,306 10.58 0.0353
2023-07-27 2023-06-30 13F OCCIDENTAL PETE COM 674599105 20,028 1,031 5.43 1,181 -0.59 0.0265
2023-05-17 2023-03-31 13F OCCIDENTAL PETE COM 674599105 18,997 4,484 30.90 1,189 29.84 0.0317
2023-03-15 2022-12-31 13F/A-1 OCCIDENTAL PETE COM 674599105 14,513 -705 -4.63 916 -2.24 0.0257
2023-02-21 2022-12-31 13F OCCIDENTAL PETE COM 674599105 15,514 296 979 0.0246
2022-11-22 2022-09-30 13F/A-1 OCCIDENTAL PETE COM 674599105 15,218 8,205 117.00 936 126.63 0.0283
2022-11-14 2022-09-30 13F OCCIDENTAL PETE COM 674599105 15,218 8,205 936 0.0136
2022-08-12 2022-06-30 13F OCCIDENTAL PETE COM 674599105 7,013 230 3.39 413 7.27 0.0174
2022-05-02 2022-03-31 13F OCCIDENTAL PETE COM 674599105 6,783 6,783 385 0.0126
2020-11-09 2020-09-30 13F OCCIDENTAL PETE COM 674599105 0 -10,795 -100.00 0 -100.00
2020-07-31 2020-06-30 13F OCCIDENTAL PETE COM 674599105 10,795 -3,398 -23.94 198 20.00 0.0132
2020-05-06 2020-03-31 13F OCCIDENTAL PETE COM 674599105 14,193 -3,706 -20.71 165 -77.67 0.0141
2020-02-10 2019-12-31 13F OCCIDENTAL PETE COM 674599105 17,899 63 0.35 739 -6.93 0.0629
2019-11-12 2019-09-30 13F OCCIDENTAL PETE COM 674599105 17,836 2,968 19.96 794 5.87 0.0782
2019-08-05 2019-06-30 13F OCCIDENTAL PETE COM 674599105 14,868 1,464 10.92 750 -15.64 0.0822
2019-05-08 2019-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 13,404 204 1.55 889 9.48 0.1110
2019-02-08 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 13,200 1,323 11.14 812 -16.89 0.1156
2018-11-08 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 11,877 -1,745 -12.81 977 -14.37 0.1163
2018-10-04 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 13,622 820 6.41 1,141 36.97 0.1508
2018-05-15 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 12,802 -156 -1.20 833 -12.87 0.1166
2018-02-15 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 12,958 596 4.82 956 20.25 0.1292
2017-11-13 2017-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 12,362 287 2.38 795 9.81 0.1321
2017-08-15 2017-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 12,075 -1,099 -8.34 724 -13.40 0.1313
2017-05-15 2017-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 13,174 -1,413 -9.69 836 -19.69 0.1667
2017-02-14 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 14,587 1,406 10.67 1,041 8.10 0.2116
2016-11-14 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 13,181 2,253 20.62 963 16.44 0.1889
2016-08-15 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 10,928 3,631 49.76 827 65.40 0.1656
2016-05-16 2016-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 7,297 1,326 22.21 500 23.46 0.1156
2016-02-16 2015-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 5,971 -2,086 -25.89 405 -24.30 0.0820
2015-11-16 2015-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 8,057 -1,909 -19.16 535 -31.23 0.1285
2015-08-17 2015-06-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 9,966 2,066 26.15 778 34.84 0.1933
2015-08-14 2015-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,966 778
2015-05-14 2015-03-31 13F Occidental Petroleum Lg Cap Val 674599105 7,900 -355 -4.30 577 -90.84 0.1406
2015-02-18 2014-12-31 13F Occidental Petroleum Lg Cap Core 674599105 8,255 8,255 0.00 6,296 0.1345
2014-11-14 2014-09-30 13F Occidental Petroleum Large Value 674599105 0 -8,561 -100.00 0 -100.00
2014-08-14 2014-06-30 13F Occidental Petroleum Large Value 674599105 8,561 8,561 879 0.2063
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.