Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionGabelli Funds Llc
Latest Disclosed Ownership151,107 shares
Latest Disclosed Value $ 9,821,955
Gabelli Funds Llc reports 61.25% increase in ownership of OXY / Occidental Petroleum Corporation

On May 14, 2026 - Gabelli Funds Llc filed a 13F-HR form disclosing ownership of 151,107 shares of Occidental Petroleum Corporation (CH:OXY) valued at $9,821,955 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 93,707 shares of Occidental Petroleum Corporation. This represents a change in shares of 61.25% 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)
2026-05-14 2026-03-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 151,107 57,400 61.25 9,822 154.89 0.0663
2026-02-05 2025-12-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 93,707 -15,919 -14.52 3,853 -25.60 0.0261
2025-11-12 2025-09-30 13F OCCIDENTAL PETROLEUM EQUITY 674599105 109,626 -10,000 -8.36 5,180 3.06 0.0351
2025-08-13 2025-06-30 13F OCCIDENTAL PETROLEUM EQUITY 674599105 119,626 -13,743 -10.30 5,025 -23.67 0.0357
2025-05-14 2025-03-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 133,369 -4,380 -3.18 6,583 -3.28 0.0502
2025-02-13 2024-12-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 137,749 -87,500 -38.85 6,806 -41.37 0.0511
2024-11-13 2024-09-30 13F OCCIDENTAL PETROLEUM EQUITY 674599105 225,249 -1,261 -0.56 11,609 -18.68 0.0837
2024-08-13 2024-06-30 13F OCCIDENTAL PETROLEUM EQUITY 674599105 226,510 -185 -0.08 14,277 -3.10 0.1084
2024-05-14 2024-03-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 226,695 3,000 1.34 14,733 10.30 0.1085
2024-02-13 2023-12-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 223,695 -13,084 -5.53 13,357 -13.06 0.1029
2023-11-08 2023-09-30 13F OCCIDENTAL PETROLEUM EQUITY 674599105 236,779 10,270 4.53 15,362 15.35 0.1246
2023-08-10 2023-06-30 13F OCCIDENTAL PETROLEUM EQUITY 674599105 226,509 20,030 9.70 13,319 3.32 0.1009
2023-05-12 2023-03-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 206,479 28,500 16.01 12,890 14.99 0.0977
2023-02-13 2022-12-31 13F OCCIDENTAL PETROLEUM EQUITY 674599105 177,979 12,900 7.81 11,211 10.51 0.0871
2022-11-14 2022-09-30 13F/A-1 OCCIDENTAL PETE COM 674599105 165,079 30,350 22.53 10,144 27.87 0.0836
2022-11-10 2022-09-30 13F OCCIDENTAL PETE COM 674599105 165,079 30,350 10,144 0.0836
2022-08-12 2022-06-30 13F OCCIDENTAL PETE COM 674599105 134,729 48,600 56.43 7,933 62.33 0.0609
2022-05-18 2022-03-31 13F/A-1 OCCIDENTAL PETE COM 674599105 86,129 8,900 11.52 4,887 118.27 0.0321
2022-05-13 2022-03-31 13F OCCIDENTAL PETE COM 674599105 86,129 8,900 4,887 0.0330
2022-02-11 2021-12-31 13F OCCIDENTAL PETE COM 674599105 77,229 -5,800 -6.99 2,239 -8.84 0.0141
2021-11-12 2021-09-30 13F OCCIDENTAL PETE COM 674599105 83,029 -99,730 -54.57 2,456 -57.03 0.0163
2021-08-13 2021-06-30 13F OCCIDENTAL PETE COM 674599105 182,759 59,666 48.47 5,715 74.40 0.0364
2021-05-14 2021-03-31 13F OCCIDENTAL PETE COM 674599105 123,093 8,500 7.42 3,277 65.17 0.0220
2021-02-05 2020-12-31 13F OCCIDENTAL PETE COM 674599105 114,593 -16,934 -12.87 1,984 50.65 0.0141
2020-11-06 2020-09-30 13F OCCIDENTAL PETE COM 674599105 131,527 -83,053 -38.70 1,317 -66.46 0.0103
2020-08-13 2020-06-30 13F OCCIDENTAL PETE COM 674599105 214,580 -1,434 -0.66 3,927 57.02 0.0320
2020-05-14 2020-03-31 13F OCCIDENTAL PETE COM 674599105 216,014 13,529 6.68 2,501 -70.03 0.0223
2020-02-14 2019-12-31 13F OCCIDENTAL PETE COM 674599105 202,485 -78,195 -27.86 8,344 -33.15 0.0540
2019-11-01 2019-09-30 13F OCCIDENTAL PETE COM 674599105 280,680 2,880 1.04 12,482 -10.64 0.0825
2019-08-02 2019-06-30 13F OCCIDENTAL PETE COM 674599105 277,800 -40,100 -12.61 13,968 -33.63 0.0897
2019-05-02 2019-03-31 13F OCCIDENTAL PETE COM 674599105 317,900 11,500 3.75 21,045 11.90 0.1323
2019-01-30 2018-12-31 13F OCCIDENTAL PETE COM 674599105 306,400 -8,000 -2.54 18,807 -27.20 0.1290
2018-11-02 2018-09-30 13F OCCIDENTAL PETE COM 674599105 314,400 -2,400 -0.76 25,834 -2.55 0.1482
2018-08-10 2018-06-30 13F OCCIDENTAL PETE COM 674599105 316,800 -29,100 -8.41 26,510 17.98 0.1570
2018-05-09 2018-03-31 13F OCCIDENTAL PETE COM 674599105 345,900 7,900 2.34 22,470 -9.75 0.1340
2018-02-02 2017-12-31 13F OCCIDENTAL PETE COM 674599105 338,000 2,800 0.84 24,897 15.68 0.1434
2017-11-01 2017-09-30 13F OCCIDENTAL PETE COM 674599105 335,200 3,500 1.06 21,523 8.38 0.1233
2017-08-03 2017-06-30 13F OCCIDENTAL PETE COM 674599105 331,700 0 0.00 19,859 -5.51 0.1180
2017-05-04 2017-03-31 13F OCCIDENTAL PETE COM 674599105 331,700 -400 -0.12 21,017 -11.15 0.1239
2017-02-10 2016-12-31 13F OCCIDENTAL PETE COM 674599105 332,100 -49,300 -12.93 23,655 -14.95 0.1400
2016-11-10 2016-09-30 13F OCCIDENTAL PETE COM 674599105 381,400 -1,700 -0.44 27,812 -3.92 0.1650
2016-08-04 2016-06-30 13F OCCIDENTAL PETE COM 674599105 383,100 21,100 5.83 28,947 16.85 0.1708
2016-05-05 2016-03-31 13F OCCIDENTAL PETE COM 674599105 362,000 15,000 4.32 24,772 5.59 0.1494
2016-02-05 2015-12-31 13F OCCIDENTAL PETE COM 674599105 347,000 -5,700 -1.62 23,461 0.56 0.1420
2015-10-23 2015-09-30 13F OCCIDENTAL PETE COM 674599105 352,700 -11,300 -3.10 23,331 -17.58 0.1387
2015-08-05 2015-06-30 13F OCCIDENTAL PETE COM 674599105 364,000 -12,800 -3.40 28,308 2.92 0.1482
2015-05-01 2015-03-31 13F OCCIDENTAL PETE COM 674599105 376,800 -3,500 -0.92 27,506 -10.28 0.1396
2015-02-05 2014-12-31 13F OCCIDENTAL PETE COM 674599105 380,300 -10,000 -2.56 30,656 -18.31 0.1491
2014-10-30 2014-09-30 13F OCCIDENTAL PETE COM 674599105 390,300 37,000 10.47 37,527 3.50 0.1905
2014-08-06 2014-06-30 13F OCCIDENTAL PETE COM 674599105 353,300 -7,900 -2.19 36,259 5.35 0.1792
2014-05-16 2014-03-31 13F/A-1 OCCIDENTAL PETE COM 674599105 361,200 -133,600 -27.00 34,419 -26.85 0.1787
2014-05-02 2014-03-31 13F OCCIDENTAL PETE COM 674599105 361,200 34,419
2014-02-07 2013-12-31 13F OCCIDENTAL PETE COM 674599105 494,800 -96,200 -16.28 47,055 -14.88 0.2505
2013-11-07 2013-09-30 13F OCCIDENTAL PETE COM 674599105 591,000 -5,000 -0.84 55,282 3.95 0.3147
2013-08-02 2013-06-30 13F/A-1 OCCIDENTAL PETE COM 674599105 596,000 596,000 53,181 0.3227
2013-08-01 2013-06-30 13F OCCIDENTAL PETE COM 674599105 596,000 53,181 0.3227
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.