Occidental Petroleum Corporation
CH ˙ SWX ˙ US6745991058
SecurityCH:OXY / Occidental Petroleum Corporation
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership89,164 shares
Latest Disclosed Value $ 5,795,660
Mackenzie Financial Corp ownership in OXY / Occidental Petroleum Corporation

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 89,164 shares of Occidental Petroleum Corporation (CH:OXY) valued at $5,795,660 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 105,052 shares of Occidental Petroleum Corporation. This represents a change in shares of -15.12% during the quarter.

Mackenzie Financial Corp has a history of taking positions in derivatives of the underlying security (OXY) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

CH:OXY / Occidental Petroleum Corporation Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F OCCIDENTAL PETE COM 674599105 89,164 -15,888 -15.12 5,796 33.34 0.0070
2026-02-18 2025-12-31 13F OCCIDENTAL PETE COM 674599105 105,052 42,727 68.56 4,347 47.62 0.0051
2025-11-13 2025-09-30 13F OCCIDENTAL PETE COM 674599105 62,325 -2,423 -3.74 2,945 8.24 0.0036
2025-08-13 2025-06-30 13F OCCIDENTAL PETE COM 674599105 64,748 3,372 5.49 2,720 -10.20 0.0035
2025-05-07 2025-03-31 13F OCCIDENTAL PETE COM 674599105 61,376 11,218 22.37 3,030 22.24 0.0043
2025-05-02 2024-12-31 13F/A-2 OCCIDENTAL PETE COM 674599105 50,158 16,188 47.65 2,478 41.60 0.0034
2025-02-20 2024-12-31 13F/A-1 OCCIDENTAL PETE COM 674599105 50,158 16,188 2,478 0.0032
2025-02-14 2024-12-31 13F Occidental Petroleum Common Stock 674599105 50,158 16,188 2,434 0.0035
2024-11-13 2024-09-30 13F OCCIDENTAL PETE COM 674599105 33,970 -2,070 -5.74 1,751 -22.94 0.0024
2024-08-14 2024-06-30 13F OCCIDENTAL PETE COM 674599105 36,040 31 0.09 2,272 -2.95 0.0034
2024-05-10 2024-03-31 13F OCCIDENTAL PETE COM 674599105 36,009 2,394 7.12 2,340 16.59 0.0034
2024-01-30 2023-12-31 13F OCCIDENTAL PETE COM 674599105 33,615 1,964 6.21 2,007 1.57 0.0030
2023-10-25 2023-09-30 13F OCCIDENTAL PETE COM 674599105 31,651 2,668 9.21 1,977 15.15 0.0033
2023-08-03 2023-06-30 13F OCCIDENTAL PETE COM 674599105 28,983 -9,394 -24.48 1,716 -28.35 0.0026
2023-04-24 2023-03-31 13F OCCIDENTAL PETE COM 674599105 38,377 738 1.96 2,396 1.05 0.0037
2023-02-14 2022-12-31 13F OCCIDENTAL PETE COM 674599105 37,639 -12,457 -24.87 2,371 -23.00 0.0040
2022-10-07 2022-09-30 13F Occidental Petroleum Common Stock 674599105 50,096 2,484 5.22 3,078 9.81 0.0053
2022-08-10 2022-06-30 13F OCCIDENTAL PETE COM 674599105 47,612 -24,762 -34.21 2,803 -31.75 0.0045
2022-05-13 2022-03-31 13F OCCIDENTAL PETE COM 674599105 72,374 35,205 94.72 4,107 280.98 0.0055
2022-02-14 2021-12-31 13F OCCIDENTAL PETE COM 674599105 37,169 37,169 1,078 0.0015
2020-08-13 2020-06-30 13F OCCIDENTAL PETE COM 674599105 0 -60,271 -100.00 0 -100.00
2020-05-14 2020-03-31 13F OCCIDENTAL PETE COM 674599105 60,271 -3,004,082 -98.03 698 -99.45 0.0022
2020-02-13 2019-12-31 13F OCCIDENTAL PETE COM 674599105 3,064,353 1,748,049 132.80 126,282 115.73 0.3106
2019-11-14 2019-09-30 13F OCCIDENTAL PETE COM 674599105 1,316,304 145,717 12.45 58,536 -0.55 0.1538
2019-08-23 2019-06-30 13F/A-1 OCCIDENTAL PETE COM 674599105 1,170,587 -249,558 -17.57 58,857 -37.40 0.1518
2019-08-14 2019-06-30 13F OCCIDENTAL PETE COM 674599105 1,170,587 -249,558 58,857
2019-05-15 2019-03-31 13F OCCIDENTAL PETE COM 674599105 1,420,145 -371,953 -20.76 94,014 -14.53 0.2268
2019-02-06 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,792,098 164,417 10.10 109,999 -17.76 0.2892
2018-11-15 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,627,681 8,838 0.55 133,747 -1.27 0.3254
2018-08-13 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,618,843 89,884 5.88 135,465 36.39 0.3456
2018-05-14 2018-03-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 1,528,959 -457,034 -23.01 99,321 -32.11 0.2532
2018-05-14 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,528,959 99,321
2018-02-13 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,985,993 1,456,337 274.96 146,288 330.14 0.3531
2017-11-13 2017-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 529,656 41,529 8.51 34,009 16.37 0.1834
2017-08-14 2017-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 488,127 58,491 13.61 29,224 7.35 0.1627
2017-05-25 2017-03-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 429,636 -179,624 -29.48 27,222 -37.27 0.1592
2017-05-12 2017-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 429,636 27,222
2017-02-14 2016-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 609,260 -87,926 -12.61 43,398 -14.64 0.2599
2016-11-15 2016-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 697,186 -143,921 -17.11 50,839 -20.01 0.3174
2016-08-12 2016-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 841,107 -13,127 -1.54 63,554 8.72 0.3590
2016-05-12 2016-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 854,234 -217,828 -20.32 58,455 -19.35 0.5303
2016-02-12 2015-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,072,062 74,102 7.43 72,482 9.80 0.4498
2015-11-13 2015-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 997,960 -297,412 -22.96 66,015 -34.47 0.4006
2015-08-13 2015-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,295,372 414,789 47.10 100,741 56.71 0.5462
2015-05-13 2015-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 880,583 -101,244 -10.31 64,283 -18.78 0.3389
2015-02-11 2014-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 981,827 390,531 66.05 79,145 39.21 0.4038
2014-11-12 2014-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 591,296 -52,112 -8.10 56,853 -13.90 0.2850
2014-08-11 2014-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 643,408 -320 -0.05 66,033 7.65 0.3072
2014-05-14 2014-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 643,728 134,520 26.42 61,341 26.67 0.3007
2014-02-11 2013-12-31 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 509,208 -481,740 -48.61 48,426 -47.76 0.2447
2014-02-03 2013-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 509,208 48,426
2013-11-12 2013-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 990,948 -502,541 -33.65 92,693 -30.44 0.4692
2013-08-20 2013-06-30 13F/A-1 OCCIDENTAL PETE CORP DEL COM 674599105 1,493,489 1,493,489 133,264 0.6355
2013-08-09 2013-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 1,493,489 133,264
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F OCCIDENTAL PETE PUT Put 17,800 7 n/a n/a n/a
2026-02-18 2025-12-31 13F OCCIDENTAL PETE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-13 2025-09-30 13F OCCIDENTAL PETE COM Put 21,800 5 n/a n/a n/a
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.