Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionMraz, Amerine & Associates, Inc.
Latest Disclosed Ownership132,177 shares
Latest Disclosed Value $ 8,591,482
Mraz, Amerine & Associates, Inc. reports 0.16% increase in ownership of OXY / Occidental Petroleum Corporation

On May 5, 2026 - Mraz, Amerine & Associates, Inc. filed a 13F-HR form disclosing ownership of 132,177 shares of Occidental Petroleum Corporation (US:OXY) valued at $8,591,505 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 131,972 shares of Occidental Petroleum Corporation. This represents a change in shares of 0.16% during the quarter. The current value of the position is $7,524,837 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)
2026-05-05 2026-03-31 13F OCCIDENTAL PETE COM 674599105 132,177 205 0.16 8,591 58.33 1.2667
2026-02-06 2025-12-31 13F OCCIDENTAL PETE COM 674599105 131,972 -107 -0.08 5,427 -13.04 0.8063
2025-11-06 2025-09-30 13F OCCIDENTAL PETE COM 674599105 132,079 6,305 5.01 6,241 18.11 0.9721
2025-07-23 2025-06-30 13F OCCIDENTAL PETE COM 674599105 125,774 12,973 11.50 5,284 -4.08 0.8475
2025-07-24 2025-03-31 13F/A-1 OCCIDENTAL PETE COM 674599105 112,801 6,494 6.11 5,508 4.87 0.9465
2025-04-30 2025-03-31 13F OCCIDENTAL PETE COM 674599105 112,801 6,494 5,508 0.9465
2025-07-24 2024-12-31 13F/A-1 OCCIDENTAL PETE COM 674599105 106,307 7,784 7.90 5,253 3.45 0.9358
2025-01-31 2024-12-31 13F OCCIDENTAL PETE COM 674599105 106,307 7,784 5,253 0.9358
2025-07-24 2024-09-30 13F/A-1 OCCIDENTAL PETE COM 674599105 98,523 5,714 6.16 5,078 -13.20 0.9183
2024-10-23 2024-09-30 13F OCCIDENTAL PETE COM 674599105 98,523 5,714 5,078 0.9183
2025-07-24 2024-06-30 13F/A-1 OCCIDENTAL PETE COM 674599105 92,809 5,010 5.71 5,850 2.51 1.2019
2024-08-01 2024-06-30 13F OCCIDENTAL PETE COM 674599105 92,809 5,010 5,850 1.2019
2025-07-24 2024-03-31 13F/A-1 OCCIDENTAL PETE COM 674599105 87,799 2,645 3.11 5,706 12.23 1.0784
2024-05-15 2024-03-31 13F OCCIDENTAL PETE COM 674599105 87,799 2,645 5,706 1.0784
2025-07-24 2023-12-31 13F/A-1 OCCIDENTAL PETE COM 674599105 85,154 5,463 6.86 5,085 -1.66 1.0651
2024-01-31 2023-12-31 13F OCCIDENTAL PETE COM 674599105 85,154 5,463 5,085 1.0651
2025-07-24 2023-09-30 13F/A-1 OCCIDENTAL PETE COM 674599105 79,691 2,016 2.60 5,170 13.20 1.1651
2023-11-13 2023-09-30 13F OCCIDENTAL PETE COM 674599105 79,691 2,016 5,170 1.1651
2025-07-24 2023-06-30 13F/A-1 OCCIDENTAL PETE COM 674599105 77,675 1,368 1.79 4,567 -4.12 1.0731
2023-07-25 2023-06-30 13F OCCIDENTAL PETE COM 674599105 77,675 1,368 4,567 1.0731
2025-07-24 2023-03-31 13F/A-1 OCCIDENTAL PETE COM 674599105 76,307 -656 -0.85 4,764 -1.73 1.1722
2023-04-20 2023-03-31 13F OCCIDENTAL PETE COM 674599105 76,307 -656 4,764 1.1722
2023-01-12 2022-12-31 13F OCCIDENTAL PETE COM 674599105 76,963 -118 -0.15 4,848 2.32 1.1424
2022-10-25 2022-09-30 13F OCCIDENTAL PETE COM 674599105 77,081 132 0.17 4,737 4.55 1.2719
2022-07-27 2022-06-30 13F OCCIDENTAL PETE COM 674599105 76,949 1,745 2.32 4,531 6.19 1.1642
2022-04-22 2022-03-31 13F OCCIDENTAL PETE COM 674599105 75,204 767 1.03 4,267 97.73 1.0146
2022-01-14 2021-12-31 13F OCCIDENTAL PETE COM 674599105 74,437 6,800 10.05 2,158 7.85 0.5543
2021-11-08 2021-09-30 13F OCCIDENTAL PETE COM 674599105 67,637 15,280 29.18 2,001 22.24 0.5466
2021-08-03 2021-06-30 13F OCCIDENTAL PETE COM 674599105 52,357 2,041 4.06 1,637 22.26 0.4438
2021-04-26 2021-03-31 13F OCCIDENTAL PETE COM 674599105 50,316 2,272 4.73 1,339 60.94 0.3893
2021-02-11 2020-12-31 13F OCCIDENTAL PETE COM 674599105 48,044 22,313 86.72 832 222.48 0.2765
2020-11-03 2020-09-30 13F OCCIDENTAL PETE COM 674599105 25,731 1,128 4.58 258 -42.67 0.0960
2020-07-29 2020-06-30 13F OCCIDENTAL PETE COM 674599105 24,603 11,646 89.88 450 200.00 0.1672
2020-05-06 2020-03-31 13F OCCIDENTAL PETE COM 674599105 12,957 2,702 26.35 150 -64.54 0.0590
2020-02-10 2019-12-31 13F OCCIDENTAL PETE COM 674599105 10,255 2 0.02 423 -7.24 0.1207
2019-11-09 2019-09-30 13F OCCIDENTAL PETE COM 674599105 10,253 -504 -4.69 456 -15.71 0.1356
2019-08-02 2019-06-30 13F OCCIDENTAL PETE COM 674599105 10,757 400 3.86 541 -21.14 0.1608
2019-05-08 2019-03-31 13F OCCIDENTAL PETE COM 674599105 10,357 1,950 23.19 686 32.95 0.2131
2019-02-11 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 8,407 1,500 21.72 516 -9.15 0.1709
2018-11-13 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 6,907 0 0.00 568 -1.73 0.1684
2018-08-14 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 6,907 0 0.00 578 28.73 0.1749
2018-05-14 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 6,907 -1,420 -17.05 449 -26.75 0.1421
2018-02-05 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 8,327 -187 -2.20 613 12.07 0.1879
2017-11-06 2017-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 8,514 -397 -4.46 547 2.63 0.1730
2017-07-27 2017-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 8,911 -517 -5.48 533 -8.10 0.1659
2017-05-05 2017-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,428 218 2.37 580 -11.59 0.1811
2017-01-31 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,210 7 0.08 656 -2.24 0.2057
2016-11-07 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,203 8 0.09 671 -3.45 0.2291
2016-07-26 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,195 7 0.08 695 10.49 0.2432
2016-07-26 2016-03-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 9,188 9 0.10 629 1.29 0.2314
2016-05-16 2016-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,188 629
2016-02-11 2015-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,179 7 0.08 621 2.31 0.2367
2015-11-16 2015-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,172 7 0.08 607 -14.87 0.2402
2015-08-10 2015-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,165 7 0.08 713 6.58 0.2676
2015-05-11 2015-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,158 6 0.07 669 -9.35 0.2505
2015-03-02 2014-12-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 9,152 -203 -2.17 738 -17.91 0.2788
2015-02-17 2014-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,152 738
2014-11-14 2014-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,355 -98 -1.04 899 -7.32 0.3462
2014-08-11 2014-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,453 5 0.05 970 7.78 0.3758
2014-05-09 2014-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,448 -136 -1.42 900 -1.21 0.3763
2014-02-13 2013-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,584 4 0.04 911 1.67 0.4064
2013-10-18 2013-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,580 5 0.05 896 4.92 0.4308
2013-09-19 2013-06-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 9,575 9,575 854 0.4342
2013-08-08 2013-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 9,575 854
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.