List of Occidental Petroleum subsidiaries

Verified insights into Occidental Petroleum’s global corporate structure and subsidiaries.

Q: What is the price of this company data from Occidental Petroleum?

The price of our Occidental Petroleum company data varies based on your chosen details and delivery method. Whether you need a list of subsidiaries or a full dataset via API or bulk files, we offer flexible pricing to suit your needs. You can request a free quote and record count within 24 hours — our team will provide transparent pricing and a free sample of 10 company contacts. At CompanyData.com, you only pay for the verified global data you need.

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At CompanyData.com, we offer secure and flexible payment options for purchasing company data, including credit cards, bank transfer, and PayPal. All payments are processed safely, and invoices are provided. For larger or ongoing access, we also support subscription billing and custom invoicing. Need a special arrangement? Contact our sales team — we’re happy to help.

Q: What information is available about Occidental Petroleum?

At CompanyData.com, you can access detailed, verified data on Occidental Petroleum Corporation and all its subsidiaries, updated daily. This includes company names, registration details, locations, industry classifications, financial indicators—including revenue of $25.96 billion—and key contacts. You can download the data via the Bold Platform, API, or bulk file delivery. Our database offers 100% worldwide company coverage, ensuring complete and accurate insights.

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At CompanyData.com, our data comes from verified global business sources to ensure accuracy and full coverage. We combine official registers, financial filings, LEI records, trusted partners, and verified company websites. All data is cross-checked and validated by our experts, ensuring it’s accurate, up-to-date, and GDPR-compliant.

Occidental Petroleum Corporation, commonly known as Oxy, is a multinational energy company headquartered in The Woodlands, Texas, United States. Founded in 1920, it operates an extensive corporate structure with 621 subsidiaries worldwide. This ownership data is part of CompanyData.com’s verified corporate hierarchy database, covering over 380 million companies globally.

Geographic distribution of Occidental Petroleum’s subsidiaries

Occidental Petroleum has 621 subsidiaries distributed across 21 countries, with 552 in the United States (89%), 45 in Bermuda (7.2%), and 3 in United Arab Emirates (0.5%). These countries represent the core hubs of Occidental’s operations in oil and gas exploration, production, and energy services worldwide.

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Top Subsidiaries and Companies Owned by Occidental Petroleum

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	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Oxy Oil Partners, INC.	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	oxy.*****	N/A	$2,120,675	5	N/A	N/A	N/A
2	Sun Offshore Gathering Company	USA	Houston	16666 Northchase Dr	Harris	77060	N/A	2010	$2,409,178	5	N/A	N/A	N/A
3	Oxy Vinyls, LP	USA	Holden	29273 Richardson Dr	Livingston	70744	N/A	N/A	$0	2	N/A	N/A	N/A
4	Occidental Chemical CORPORATION	USA	Sauget	520 Falling Springs Rd	St. Clair	62206	oxy.*****	N/A	$0	1	N/A	N/A	N/A
5	Anadarko Royalty Holdings Company	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	N/A	N/A	$2,509,794	4	N/A	N/A	N/A
6	Occidental Chemical CORPORATION	USA	Downingtown	419 Creekside Dr	Chester	19335	N/A	N/A	$0	1	N/A	N/A	N/A
7	Oxy INC	USA	Levelland	3151 W State Road 114	Hockley	79336	N/A	N/A	$0	88	N/A	N/A	N/A
8	Oxy Vinyls, LP	USA	Slidell	727 Robert Blvd	St. Tammany	70458	N/A	N/A	$0	52	N/A	N/A	N/A
9	Anadarko Petroleum CORPORATION	USA	Notrees	Hwy 302	Ector	79759	anadarko.*****	N/A	$0	40	N/A	N/A	N/A
10	Anadarko Us Offshore LLC	USA	The Woodlands	1201 Lake Robbins Dr	Montgomery	77380	anadarko.*****	1997	$21,770,468	26	N/A	N/A	2773200
11	Oxy INC	USA	Bakersfield	230 Kern Front Rd	Kern	93308	N/A	N/A	$0	25	N/A	N/A	N/A
12	Occidental Permian LTD.	USA	Fort Stockton	2301 Puckett Rd	Pecos	79735	N/A	N/A	$0	12	N/A	N/A	N/A
13	Glenn Springs Holdings, INC.	USA	Niagara Falls	805 97th St	Niagara	14304	glennsprings-copperbasinproject.*****	N/A	$0	11	N/A	N/A	N/A
14	Oxy Lpg LLC	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	oxy.*****	2008	$2,249,088	7	N/A	N/A	4537496
15	Anadarko Petroleum CORPORATION	USA	Williamsport	33 W 3rd St Ste 400	Lycoming	17701	anadarko.*****	N/A	$0	6	N/A	N/A	N/A
16	Oxy Oleoducto Sop, LLC	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	oxy.*****	2019	$2,717,753	5	N/A	N/A	N/A
17	Occidental Chemical Investment (canada) 1, INC.	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	N/A	N/A	$2,683,867	4	N/A	N/A	N/A
18	Western Gas Resources, INC.	USA	Douglas	47 Ayers Natural Bridge Rd	Converse	82633	N/A	N/A	$0	4	N/A	N/A	N/A
19	Anadarko Ush1 CORPORATION	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	N/A	N/A	$2,388,563	4	N/A	N/A	N/A
20	Oxy Vinyls, LP	USA	Louisville	4014 Bells Ln	Jefferson	40211	N/A	N/A	$0	4	N/A	N/A	N/A
21	Wardner Ranch, INC.	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	N/A	N/A	$2,722,724	4	N/A	N/A	N/A
22	Anadarko Petroleum CORPORATION	USA	Spring	9190 Grogans Mill Rd	Harris	77380	N/A	N/A	$0	4	N/A	N/A	N/A
23	Oxy Vinyls, LP	USA	Pedricktown	130 Porcupine Rd	Salem	08067	N/A	N/A	$0	4	N/A	N/A	N/A
24	Bear Branch Exploration, LLC	USA	Houston	5 Greenway Plz Ste 110	Harris	77046	N/A	N/A	$2,722,724	4	N/A	N/A	N/A
25	Western Gas Resources, INC.	USA	Medford	N/A	Grant	73759	N/A	N/A	$0	4	N/A	N/A	N/A
26	Anadarko Brazil Investment I LLC	USA	The Woodlands	1201 Lake Robbins Dr	Montgomery	77380	N/A	2019	$2,286,783	3	N/A	N/A	N/A

Companies by Employee Size

1-4319
5-9134
10-1953
20-4967
50-9922
100-19910
200-49917
500-9994
1.000-4.9992
0 or Unknown7

Companies by Revenue Size (in USD)

0 or Unknown304
1 to 100.0004
100.001 to 499.99966
500.000 to 999.99914
1.000.000.000 or more4
1.000.000 to 4.999.999201
5.000.000 to 9.999.99914
10.000.000 to 49.999.99920
50.000.000 to 99.999.9994
100.000.000 to 499.999.9993
500.000.000 to 999.999.9991

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Explore Corporate Hierarchies in Detail

Occidental Petroleum’s ownership network is part of more than 41 million corporate hierarchies mapped in our company ownership database. It reveals how companies are structured and connected, showing parent entities and subsidiaries with verified data from groups across 200 countries and jurisdictions. Explore how our dataset works — and request a tailored sample.

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Occidental Petroleum Company Facts

Where is Occidental Petroleum headquartered?

In Houston, Texas, United States.

How many subsidiaries does Occidental Petroleum have?

About 621 subsidiaries across 22 countries.

Who owns Occidental Petroleum?

Occidental Petroleum Corporation is publicly traded on the NYSE (Ticker: OXY) with no single majority shareholder.

Is Occidental Petroleum a US company?

Yes. Occidental Petroleum is incorporated in the United States.

How many people work for Occidental Petroleum?

Occidental Petroleum employs approximately 11,000 people worldwide.

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Why Ownership Structure Data Matters

Understanding ownership is key to seeing how companies connect and operate. Our corporate hierarchy data helps you trace relationships between parent entities, subsidiaries, and shareholders, revealing control, structure, and risk within any global group. Whether you’re analysing Occidental Petroleum or another multinational, this level of insight supports compliance checks, market research, and smarter CRM data management. With verified ownership records covering more than 380 million companies worldwide, CompanyData.com delivers a clear view of who owns who across industries and borders.

How We Map Global, National, and Local Headquarters

At CompanyData.com, each company profile – like Occidental Petroleum – is mapped using our three-level hierarchy model: Global, National, and Local headquarters. This structure reveals how every entity fits into its wider corporate family.

Three levels we use

Global Headquarter — Occidental Petroleum Corporation serves as the global headquarter of the Occidental Petroleum Group, located in Houston, Texas, United States. It sits above all other entities in the group.
National Headquarters — Country-level entities manage operations and report to the global parent. Examples include Occidental Petroleum USA, Occidental Petroleum Canada Ltd., and other regional subsidiaries operating within specific countries.
Local Headquarters — Regional subsidiaries oversee production sites, refineries, and divisions within their own markets, maintaining local compliance and brand management.

Each entity is assigned a unique ID, allowing you to link subsidiaries to parent groups, trace ownership paths, and integrate the data across your own systems.

How control is shown

Control is determined by ownership. When a company owns more than fifty percent of another, we classify it as a controlled subsidiary. Our data focuses on these majority-controlled relationships to clearly represent corporate hierarchies. This approach provides a transparent view of complex ownership networks such as Occidental Petroleum’s and can be applied to any multinational group.

Why this matters

This model helps identify the real decision makers within the Occidental Petroleum Group, simplifies compliance checks, and supports M&A or risk analysis. By mapping each entity with verified ownership data, CompanyData.com enables users to navigate Occidental Petroleum’s corporate hierarchy confidently and see how global companies are structured. With data on more than 621 subsidiaries spread across 22 countries, including the United States, Bermuda, Cayman Islands, United Arab Emirates, and more, our platform delivers clarity and transparency to international teams working with complex corporate networks.

How We Map Global, National, and Local Headquarters

Who This Solution Is For

CompanyData.com supports global organizations that require verified insights into corporate ownership structures and firmographics, including revenue, for companies like Occidental Petroleum. From CRM enrichment and compliance workflows to market intelligence and strategic analytics, we provide detailed data to support informed decision-making. Free evaluation samples are available; larger samples (up to 1,000 companies) can be provided to qualified corporate buyers with an active company website and specific use case. For contact or lead lists, visit our Company Data Platform.

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Occidental Petroleum ownership & subsidiary data – FAQs

You can access Occidental Petroleum company data through API, bulk files, or the Bold Platform. We create custom datasets based on your target countries, industries, and company profiles. After you share your criteria, our experts prepare a tailored dataset and send a free quote with record counts and sample data within 24 hours. Once approved, we deliver your data quickly in your preferred format — via Excel, API, bulk file, or directly in the Bold Platform.

If you need company data from any organization or industry, CompanyData.com provides complete global coverage. You’ll get accurate, verified business information across every country and sector. Simply tell us what you’re looking for, and our experts will prepare a custom dataset that fits your goals. Within 24 hours, you’ll receive a free quote, record count, and sample data. Once approved, we deliver your data fast — via Excel, API, bulk file, or directly in the Bold Platform.

The price of our Occidental Petroleum company data varies based on your chosen details and delivery method. Whether you need a list of subsidiaries or a full dataset via API or bulk files, we offer flexible pricing to suit your needs. You can request a free quote and record count within 24 hours — our team will provide transparent pricing and a free sample of 10 company contacts. At CompanyData.com, you only pay for the verified global data you need.

At CompanyData.com, we offer secure and flexible payment options for purchasing company data, including credit cards, bank transfer, and PayPal. All payments are processed safely, and invoices are provided. For larger or ongoing access, we also support subscription billing and custom invoicing. Need a special arrangement? Contact our sales team — we’re happy to help.

At CompanyData.com, you can access detailed, verified data on Occidental Petroleum Corporation and all its subsidiaries, updated daily. This includes company names, registration details, locations, industry classifications, financial indicators—including revenue of $25.96 billion—and key contacts. You can download the data via the Bold Platform, API, or bulk file delivery. Our database offers 100% worldwide company coverage, ensuring complete and accurate insights.

At CompanyData.com, our data comes from verified global business sources to ensure accuracy and full coverage. We combine official registers, financial filings, LEI records, trusted partners, and verified company websites. All data is cross-checked and validated by our experts, ensuring it’s accurate, up-to-date, and GDPR-compliant.

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Tell us your target group, and we’ll send you a free quote and a tailored company ownership dataset — sample included. Call +31 20 705 236 or email sales@companydata.com. Ready to order? Simply reply to the quote, and CompanyData.com delivers your dataset in CSV or Excel within 24 hours.

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