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Occidental Petroleum OXY

Occidental Petroleum is the 189th largest S&P 500 company by market cap, worth $64.1 billion. 11 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 6 other officers are on file. At 30 Jun 2026, Berkshire Hathaway was its largest institutional holder, with 26.6% of the company.

CEO
Richard A. Jackson
Sector
Energy
Sub-industry
Oil & Gas Exploration & Production
Headquarters
Houston, Texas
Founded
1920
More
Wikipedia
Market cap
$64.1B
189th largest, 23 Oct 2026 close
Revenue
$21.6B
Fiscal year 2025
Price to sales
3.0
Market cap over revenue
Employees
10,412
10-K, 31 Dec 2025
Market cap per employee
$6.2M
Market cap over employees
Connections
4
S&P 500 companies sharing a director or officer

Largest institutional holders

Each fund group's share of Occidental Petroleum. Where a company has several share classes, the share is of its total value.

13F filings for the quarter to 30 Jun 2026

These five hold 53.8% of Occidental Petroleum.

Source: SEC Form 13F data sets, SEC XBRL shares outstanding · All holders

Board and officers

4 people here also hold roles at other S&P 500 companies.

Roles filed up to 30 Sep 2026

NameTitle
Directors (11)
Richard A. JacksonPresident and CEOPresident and CEO
Vicky A. BaileyDirectorAlso at EQTDirector
Andrew GouldDirectorDirector
Carlos M. GutierrezDirectorAlso at MetLifeDirector
Vicki A. HollubDirectorAlso at Lockheed MartinDirector
William R. KlesseDirectorDirector
Jack B. MooreDirectorDirector
Claire O'NeillDirectorDirector
Avedick Baruyr PoladianDirectorAlso at Public StorageDirector
Kenneth B. RobinsonDirectorDirector
Bob ShearerDirectorDirector
Officers (6)
Sunil MathewSVP & CFOLast filed 3 Mar 2026SVP & CFO
Christopher O. ChampionVP, CAO and ControllerLast filed 3 Mar 2026VP, CAO and Controller
Kenneth DillonSenior Vice PresidentLast filed 3 Mar 2026Senior Vice President
Robert L. PetersonSenior Vice PresidentLast filed 3 Mar 2026Senior Vice President
Brad PollackSVP & General CounselLast filed 4 Aug 2026SVP & General Counsel
Jeff F. SimmonsSenior Vice PresidentLast filed 3 Mar 2026Senior Vice President

Source: SEC insider filings (Forms 3, 4 and 5), Occidental Petroleum's Form 4 filings · All directors and officers

Companies that share people with Occidental Petroleum

Each person's title here, then at the other company.

  • EQT EQT
    • Vicky A. Bailey: Director here, Director there
  • Lockheed Martin LMT
    • Vicki A. Hollub: Director here, Director there
  • MetLife MET
    • Carlos M. Gutierrez: Director here, Director there
  • Public Storage PSA
    • Avedick Baruyr Poladian: Director here, Director there

Source: SEC insider filings · See the whole network

Occidental Petroleum's market cap since December 2008

Marked weeks are changes in the share count, such as a merger, not market moves.

Weekly, up to 23 Oct 2026

Show equal percentage changes as equal steps.
201020122014201620182020202220242026$64.1B

Source: Yahoo Finance closing prices, SEC XBRL shares outstanding

Workforce

Headcount at 31 Dec 2025

Employees
10,412
The table below shows the regional distribution of the Company's employees working in continuing operations as of December 31, 2025: … Total 10,412
Occidental Petroleum Form 10-K

Source: Occidental Petroleum Form 10-K

Insider trades

Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.

Trades from 30 Sep 2025 to 30 Sep 2026

Directors and officers made no open-market sales and bought $444,753 in 2 purchases in the 12 months to 30 Sep 2026.

DatePersonTitleTypeSharesValue
23 Jun 2026BuyRichard A. JacksonPresident and CEOPresident and CEOBuy4,770$250K
16 Dec 2025BuyWilliam R. KlesseDirectorDirectorBuy5,000$195K

Source: SEC insider transactions data sets, Occidental Petroleum's Form 4 filings

Trades by members of Congress and officials

Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.

Trades from 20 Oct 2023 to 20 Oct 2026

7 people disclosed 11 purchases and 9 sales of Occidental Petroleum stock since October 2023.

DateMember or officialTypeAmount
10 Feb 2026Gilbert Cisneros (House, D-CA)House, D-CA · BoughtPurchase$1,001 to $15,000$1K to $15K
12 Nov 2025Gilbert Cisneros (House, D-CA)House, D-CA · SoldSale$1,001 to $15,000$1K to $15K
24 Oct 2025Marjorie Taylor Greene (House, R-GA)House, R-GA · BoughtPurchase$1,001 to $15,000$1K to $15K
5 Aug 2025Gilbert Cisneros (House, D-CA)House, D-CA · BoughtPurchase$1,001 to $15,000$1K to $15K
15 May 2025Rob Bresnahan (House, R-PA)House, R-PA · BoughtPurchase$1,001 to $15,000$1K to $15K
12 May 2025Jefferson Shreve (House, R-IN)House, R-IN · SoldSale$15,001 to $50,000$15K to $50K
8 May 2025Jefferson Shreve (House, R-IN)House, R-IN · BoughtPurchase$15,001 to $50,000$15K to $50K
5 May 2025Marjorie Taylor Greene (House, R-GA)House, R-GA · BoughtPurchase$1,001 to $15,000$1K to $15K
8 Apr 2025Rob Bresnahan (House, R-PA)House, R-PA · SoldSale$15,001 to $50,000$15K to $50K
7 Apr 2025Jefferson Shreve (House, R-IN)House, R-IN · SoldSale$15,001 to $50,000$15K to $50K

Showing 10 of 20 trades

Source: House, Senate and OGE disclosures via the Congress trading monitor

Not on file: no WARN layoff notices under its own name since October 2023.