Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionAdvisors Asset Management, Inc.
Latest Disclosed Ownership57,343 shares
Latest Disclosed Value $ 3,727,295
Advisors Asset Management, Inc. reports 5.41% decrease in ownership of OXY / Occidental Petroleum Corporation

On May 15, 2026 - Advisors Asset Management, Inc. filed a 13F-HR form disclosing ownership of 57,343 shares of Occidental Petroleum Corporation (CH:OXY) valued at $3,727,295 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 60,622 shares of Occidental Petroleum Corporation. This represents a change in shares of -5.41% 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.

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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)
2026-05-15 2026-03-31 13F OCCIDENTAL PETE COM 674599105 57,343 -3,279 -5.41 3,727 49.56 0.0619
2026-02-12 2025-12-31 13F OCCIDENTAL PETE COM 674599105 60,622 -13,325 -18.02 2,493 -28.66 0.0418
2025-11-06 2025-09-30 13F OCCIDENTAL PETE COM 674599105 73,947 -1,568 -2.08 3,494 10.12 0.0593
2025-08-12 2025-06-30 13F OCCIDENTAL PETE COM 674599105 75,515 -2,188 -2.82 3,172 -17.29 0.0568
2025-05-15 2025-03-31 13F OCCIDENTAL PETE COM 674599105 77,703 25,576 49.06 3,835 48.93 0.0721
2025-02-10 2024-12-31 13F OCCIDENTAL PETE COM 674599105 52,127 9,619 22.63 2,576 17.58 0.0474
2024-11-08 2024-09-30 13F OCCIDENTAL PETE COM 674599105 42,508 4,174 10.89 2,191 -9.35 0.0402
2024-08-14 2024-06-30 13F OCCIDENTAL PETE COM 674599105 38,334 5,154 15.53 2,416 12.06 0.0471
2024-05-14 2024-03-31 13F OCCIDENTAL PETE COM 674599105 33,180 4,125 14.20 2,156 24.34 0.0414
2024-02-14 2023-12-31 13F OCCIDENTAL PETE COM 674599105 29,055 -1,385 -4.55 1,735 -12.16 0.0354
2023-11-14 2023-09-30 13F OCCIDENTAL PETE COM 674599105 30,440 534 1.79 1,975 12.29 0.0426
2023-08-14 2023-06-30 13F OCCIDENTAL PETE COM 674599105 29,906 2,860 10.57 1,758 4.15 0.0359
2023-05-12 2023-03-31 13F OCCIDENTAL PETE COM 674599105 27,046 1,110 4.28 1,688 3.37 0.0343
2023-02-13 2022-12-31 13F OCCIDENTAL PETE COM 674599105 25,936 1,219 4.93 1,634 7.50 0.0337
2022-11-08 2022-09-30 13F OCCIDENTAL PETROLEUM COM 674599105 24,717 -1,441 -5.51 1,519 -1.36 0.0319
2022-08-08 2022-06-30 13F OCCIDENTAL PETE COM 674599105 26,158 4,054 18.34 1,540 22.81 0.0292
2022-05-17 2022-03-31 13F OCCIDENTAL PETE COM 674599105 22,104 5,081 29.85 1,254 154.36 0.0193
2022-02-15 2021-12-31 13F OCCIDENTAL PETROLEUM COM 674599105 17,023 -11,235 -39.76 493 -41.03 0.0070
2021-11-12 2021-09-30 13F OCCIDENTAL PETE COM 674599105 28,258 -11,761 -29.39 836 -33.17 0.0127
2021-07-30 2021-06-30 13F OCCIDENTAL PETE COM 674599105 40,019 -20,190 -33.53 1,251 -21.96 0.0185
2021-05-07 2021-03-31 13F OCCIDENTAL PETE COM 674599105 60,209 -67,589 -52.89 1,603 -27.53 0.0249
2021-02-12 2020-12-31 13F OCCIDENTAL PETE COM 674599105 127,798 -65,232 -33.79 2,212 14.49 0.0366
2020-11-16 2020-09-30 13F OCCIDENTAL PETE COM 674599105 193,030 -59,314 -23.51 1,932 -58.16 0.0357
2020-08-12 2020-06-30 13F OCCIDENTAL PETE COM 674599105 252,344 -4,108 -1.60 4,618 55.49 0.0899
2020-05-15 2020-03-31 13F OCCIDENTAL PETE COM 674599105 256,452 49,490 23.91 2,970 -65.18 0.0707
2020-05-20 2019-12-31 13F/A-1 OCCIDENTAL PETE COM 674599105 206,962 54,005 35.31 8,529 25.39 0.1495
2020-02-14 2019-12-31 13F OCCIDENTAL PETE COM 674599105 206,962 54,005 8,524 75,445.4592
2019-11-14 2019-09-30 13F OCCIDENTAL PETE COM 674599105 152,957 49,687 48.11 6,802 31.01 0.1253
2019-11-14 2019-06-30 13F/A-1 OCCIDENTAL PETROLEUM COM 674599105 103,270 -38,755 -27.29 5,192 -44.78 0.0937
2019-08-14 2019-06-30 13F OCCIDENTAL PETE COM 674599105 103,270 -38,755 5,192
2019-05-15 2019-03-31 13F OCCIDENTAL PETROLEUM COM 674599105 142,025 -75,043 -34.57 9,402 -29.44 0.1673
2019-02-06 2018-12-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 217,068 -72,183 -24.96 13,324 -43.94 0.2683
2019-01-31 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 217,068 -72,183 13,324
2018-11-15 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 289,251 -12,396 -4.11 23,768 -5.84 0.3885
2018-08-22 2018-06-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 301,647 -90,053 -22.99 25,242 -1.74 0.4287
2018-08-15 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 301,647 -90,053 25,242
2018-05-15 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 391,700 -10,654 -2.65 25,690 -13.32 0.4304
2018-02-13 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 402,354 51,213 14.58 29,637 31.45 0.4872
2017-11-07 2017-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 351,141 -1,058 -0.30 22,547 6.93 0.3777
2017-08-02 2017-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 352,199 32,631 10.21 21,086 4.14 0.3524
2017-05-02 2017-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 319,568 117,796 58.38 20,248 37.62 0.3393
2016-10-31 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 201,772 -32,750 -13.96 14,713 -16.97 0.2413
2016-08-08 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 234,522 -14,817 -5.94 17,720 3.86 0.2873
2016-05-16 2016-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 249,339 -8,107 -3.15 17,062 -1.98 0.2839
2016-02-10 2015-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 257,446 25,557 11.02 17,406 13.48 0.2762
2015-11-16 2015-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 231,889 8,845 3.97 15,339 -11.57 0.2446
2015-08-11 2015-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 223,044 -2,843 -1.26 17,346 5.19 0.2381
2015-05-13 2015-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 225,887 39,016 20.88 16,490 9.47 0.2196
2015-02-05 2014-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 186,871 34,016 22.25 15,064 2.50 0.2020
2014-11-13 2014-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 152,855 17,652 13.06 14,697 5.92 0.2027
2014-08-14 2014-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 135,203 19,428 16.78 13,876 25.78 0.1924
2014-05-15 2014-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 115,775 16,973 17.18 11,032 17.41 0.1673
2014-02-03 2013-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 98,802 15,532 18.65 9,396 20.63 0.1514
2013-11-15 2013-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 83,270 291 0.35 7,789 5.20 0.1383
2013-08-14 2013-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 82,979 82,979 7,404 0.1399
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.