Occidental Petroleum Corporation
BG ˙ BUL ˙ US6745991058
SecurityBG:OPC / Occidental Petroleum Corporation
InstitutionTcw Group Inc
Latest Disclosed Ownership10,827 shares
Latest Disclosed Value $ 703,755
Tcw Group Inc reports 5.08% increase in ownership of OPC / Occidental Petroleum Corporation

On May 14, 2026 - Tcw Group Inc filed a 13F-HR form disclosing ownership of 10,827 shares of Occidental Petroleum Corporation (BG:OPC) valued at $703,755 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 10,304 shares of Occidental Petroleum Corporation. This represents a change in shares of 5.08% 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 PETE COM 674599105 10,827 523 5.08 704 66.19 0.0028
2026-02-17 2025-12-31 13F OCCIDENTAL PETE COM 674599105 10,304 10,304 424 0.0030
2025-05-07 2025-03-31 13F OCCIDENTAL PETE COM 674599105 0 -77,717 -100.00 0 -100.00
2025-02-04 2024-12-31 13F OCCIDENTAL PETE COM 674599105 77,717 -23,648 -23.33 3,840 -26.51 0.0322
2024-11-19 2024-09-30 13F/A-1 OCCIDENTAL PETE COM 674599105 101,365 23,366 29.96 5,224 6.27 0.0457
2024-11-08 2024-09-30 13F OCCIDENTAL PETE COM 674599105 101,365 23,366 5,224 0.0235
2024-07-19 2024-06-30 13F OCCIDENTAL PETE COM 674599105 77,999 -8,988 -10.33 4,916 -13.04 0.0439
2024-05-10 2024-03-31 13F OCCIDENTAL PETE COM 674599105 86,987 -19,076 -17.99 5,653 -11.12 0.0572
2024-02-09 2023-12-31 13F OCCIDENTAL PETE COM 674599105 106,063 106,063 6,361 0.0709
2019-08-07 2019-06-30 13F OCCIDENTAL PETE COM 674599105 0 -14,400 -100.00 0 -100.00
2019-05-13 2019-03-31 13F OCCIDENTAL PETE COM 674599105 14,400 -2,360 -14.08 953 -7.39 0.0091
2019-02-11 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 16,760 -3,136 -15.76 1,029 -37.06 0.0106
2018-10-30 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 19,896 -1,801 -8.30 1,635 -9.92 0.0134
2018-08-01 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 21,697 705 3.36 1,815 33.16 0.0147
2018-05-10 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 20,992 4,227 25.21 1,363 10.36 0.0111
2018-02-09 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 16,765 16,765 1,235 0.0099
2017-05-11 2017-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 0 -70,004 -100.00 0 -100.00
2017-02-10 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 70,004 -71,779 -50.63 4,986 -51.77 0.0375
2016-11-14 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 141,783 -19,095 -11.87 10,339 -14.95 0.0785
2016-08-12 2016-06-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 160,878 45,971 40.01 12,156 54.60 0.0918
2016-08-11 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 160,878 12,156
2016-05-16 2016-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 114,907 -7,307 -5.98 7,863 -4.85 0.0577
2016-02-16 2015-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 122,214 306 0.25 8,264 2.47 0.0593
2015-11-13 2015-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 121,908 -60,092 -33.02 8,065 -43.02 0.0579
2015-08-12 2015-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 182,000 -83,029 -31.33 14,154 -26.84 0.0911
2015-05-13 2015-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 265,029 47,570 21.88 19,347 10.37 0.0929
2015-02-13 2014-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 217,459 -164,705 -43.10 17,530 -52.29 0.0733
2014-11-14 2014-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 382,164 -11,691 -2.97 36,745 -9.10 0.1478
2014-08-14 2014-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 393,855 -1,268 -0.32 40,422 7.36 0.1665
2014-05-13 2014-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 395,123 -9,200 -2.28 37,652 -2.08 0.1563
2014-02-18 2013-12-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 404,323 -3,172 -0.78 38,450 0.87 0.1621
2014-02-14 2013-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 38,450 404,323
2013-11-14 2013-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 407,495 2,261 0.56 38,117 5.41 0.1761
2013-08-14 2013-06-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 405,234 405,234 36,159 0.1783
2013-08-14 2013-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 405,234 36,159
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.