| $50M | ||
| $47M | ||
| $37M | ||
| $34M | ||
| $18M | ||
| $16M |
Buys | $444,753 | 2 | 100 |
Sells | $0 | 0 | 0 |
| Jackson Richard A. | President and CEO | 1 | $249,853 | 0 | $0 | $249,853 |
| KLESSE WILLIAM R | director | 1 | $194,900 | 0 | $0 | $194,900 |
Occidental Petroleum Corporation, together with its subsidiaries, engages in the acquisition, exploration, and development of oil and gas properties in the United States and internationally. It operates through Oil and Gas and Midstream and Marketing. The Oil and Gas segment explores for, develops, and produces oil and condensate, natural gas liquids (NGLs), and natural gas. This segment also optimizes its transportation and storage capacity and invests in entities. The Midstream and Marketing segment purchases, markets, gathers, processes, …
Over the last 12 months, insiders at Occidental Petroleum Corporation have bought $444,753 and sold $0 worth of Occidental Petroleum Corporation stock.
On average, over the past 5 years, insiders at Occidental Petroleum Corporation have bought $1.17B and sold $1.14M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Jackson Richard A. (President and CEO) — $249,853. KLESSE WILLIAM R (director) — $194,900.
The last purchase of 4,770 shares for transaction amount of $249,853 was made by Jackson Richard A. (President and CEO) on 2026‑06‑23.
| 2026-06-23 | Jackson Richard A. | President and CEO | 4,770 0.0005% | $52.38 | $249,853 | +12.10% | ||
| 2025-12-16 | KLESSE WILLIAM R | director | 5,000 0.0005% | $38.98 | $194,900 | +46.74% | ||
| 2025-02-07 | BERKSHIRE HATHAWAY INC | 10 percent owner | 763,017 0.081% | $46.82 | $35.72M | -5.80% | ||
| 2024-12-19 | BERKSHIRE HATHAWAY INC | 10 percent owner | 3.61M 0.3856% | $45.60 | $164.79M | -1.15% | ||
| 2024-12-18 | BERKSHIRE HATHAWAY INC | 10 percent owner | 2.81M 0.3005% | $46.26 | $129.78M | -2.42% | ||
| 2024-12-17 | BERKSHIRE HATHAWAY INC | 10 percent owner | 2.48M 0.2628% | $46.25 | $114.59M | -3.48% | ||
| 2024-06-17 | BERKSHIRE HATHAWAY INC | 10 percent owner | 334,461 0.0372% | $59.75 | $19.98M | -16.07% | ||
| 2024-06-14 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.06M 0.1176% | $59.59 | $63.2M | -15.43% | ||
| 2024-06-13 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.55M 0.1727% | $59.77 | $92.79M | -15.37% | ||
| 2024-06-12 | BERKSHIRE HATHAWAY INC | 10 percent owner | 765,899 0.0859% | $60.28 | $46.17M | -16.05% | ||
| 2024-06-11 | BERKSHIRE HATHAWAY INC | 10 percent owner | 399,859 0.045% | $60.43 | $24.16M | -16.45% | ||
| 2024-06-10 | BERKSHIRE HATHAWAY INC | 10 percent owner | 584,550 0.0657% | $60.26 | $35.22M | -16.26% | ||
| 2024-06-07 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.39M 0.1569% | $59.67 | $82.75M | -14.41% | ||
| 2024-06-06 | BERKSHIRE HATHAWAY INC | 10 percent owner | 654,293 0.0736% | $59.93 | $39.21M | -15.24% | ||
| 2024-06-05 | BERKSHIRE HATHAWAY INC | 10 percent owner | 524,340 0.059% | $59.75 | $31.33M | -14.85% | ||
| 2024-02-05 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.41M 0.1543% | $56.81 | $79.86M | +1.46% | ||
| 2024-02-02 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.25M 0.1377% | $57.14 | $71.25M | +1.50% | ||
| 2024-02-01 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.65M 0.1831% | $57.45 | $94.77M | +0.93% | ||
| 2023-12-21 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.74M 0.1983% | $60.26 | $105.05M | -2.44% | ||
| 2023-12-20 | BERKSHIRE HATHAWAY INC | 10 percent owner | 1.81M 0.2076% | $60.50 | $109.66M | -1.88% |
| Jackson Richard A. | President and CEO | 444098 0.0444% | $26.84M | 1 | 0 | |
| KLESSE WILLIAM R | director | 218913 0.0219% | $13.23M | 16 | 0 | <0.0001% |
| BERKSHIRE HATHAWAY INC | 10 percent owner | 264941431 26.5038% | $16.01B | 46 | 0 | <0.0001% |
| BUFFETT WARREN E | 188366460 18.8435% | $11.38B | 12 | 0 | +11.77% | |
| Hollub Vicki A. | President and CEO | 467282 0.0467% | $28.24M | 3 | 0 | +0.89% |
| CHAZEN STEPHEN I | director | 289597 0.029% | $17.5M | 1 | 161 | +53.65% |
| Dillon Kenneth | Senior Vice President | 129461 0.013% | $7.82M | 2 | 0 | +4.98% |
| Backus Marcia E. | SVP, GC & CCO | 101248 0.0101% | $6.12M | 1 | 0 | <0.0001% |
| Vangolen Glenn M. | SVP - Business Support | 93111 0.0093% | $5.63M | 1 | 0 | <0.0001% |
| BURGHER CEDRIC W. | SVP & CFO | 79342 0.0079% | $4.79M | 3 | 0 | <0.0001% |
| POLADIAN AVEDICK BARUYR | 63066 0.0063% | $3.81M | 2 | 1 | +4.36% | |
| FORAN MARGARET M | director | 50828 0.0051% | $3.07M | 2 | 0 | <0.0001% |
| Batchelder Eugene L. | director | 45148 0.0045% | $2.73M | 4 | 0 | +2.48% |
| Brown Oscar K | Former Senior Vice President | 35000 0.0035% | $2.12M | 5 | 3 | <0.0001% |
| GUTIERREZ CARLOS M | director | 28484 0.0028% | $1.72M | 1 | 0 | +6.14% |
| MOORE JACK B | director | 25847 0.0026% | $1.56M | 1 | 0 | <0.0001% |
| Walter Elisse B. | director | 24842 0.0025% | $1.5M | 2 | 0 | <0.0001% |
| Shearer Bob | director | 24218 0.0024% | $1.46M | 2 | 0 | <0.0001% |
| CHALSTY JOHN S | director | 19103 0.0019% | $1.15M | 1 | 0 | +5.77% |
| DREIER R CHAD | director | 8333 0.0008% | $503,563.19 | 1 | 0 | +14.53% |
| Increased Positions | 484 | +32.84% | 30M | +3.97% |
| Decreased Positions | 641 | -43.49% | 28M | -3.67% |
| New Positions | 152 | New | 4M | New |
| Sold Out Positions | 182 | Sold Out | 6M | Sold Out |
| Total Postitions | 1,317 | -10.65% | 764M | +0.3% |
| Berkshire Hathaway Inc | $11.23M | 26.9% | 264.94M | 0 | 0% | 2025-09-30 |
| Vanguard Group Inc | $3.78M | 9.06% | 89.2M | +697,521 | +0.79% | 2025-09-30 |
| Dodge & Cox | $3.39M | 8.11% | 79.88M | -371,001 | -0.46% | 2025-09-30 |
| Blackrock, Inc. | $2.1M | 5.02% | 49.44M | +2M | +3.42% | 2025-09-30 |
| State Street Corp | $1.64M | 3.93% | 38.71M | -333,583 | -0.85% | 2025-09-30 |
| Geode Capital Management, Llc | $791,604.00 | 1.9% | 18.68M | +588,835 | +3.25% | 2025-09-30 |
| H&H International Investment, Llc | $574,508.00 | 1.38% | 13.56M | 0 | 0% | 2025-09-30 |
| Morgan Stanley | $561,607.00 | 1.35% | 13.25M | +3M | +24.5% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $369,509.00 | 0.89% | 8.72M | +900,677 | +11.52% | 2025-09-30 |
| Pacer Advisors, Inc. | $296,362.00 | 0.71% | 6.99M | -490,288 | -6.55% | 2025-09-30 |