Company lists · Data refreshed September 2026
Top 25 Biggest oil companies worldwide
RevenueBase identified 1,369 company matches for biggest oil companies worldwide as of September 2026 and tracks 650,988 professional contacts across them, including 99,380 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for biggest oil companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for biggest oil companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest biggest oil companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 111,637 contacts → | ||||
Exact match “We’re a leading producer of the energy and chemicals that drive global commerce and enhance the daily lives of people around the globe by continuing delivering an uninterrupted…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 60,138 contacts → | ||||
Exact match “Our greatest resource is our people.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 36,135 contacts → | ||||
Exact match “Sonatrach (Société Nationale pour la Recherche, la Production, le Transport, la Transformation, et la Commercialisation des Hydrocarbures s.p.a.) is an Algerian government-owned…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 35,924 contacts → | ||||
Exact match “Petróleos Mexicanos es la mayor empresa de México, el mayor contribuyente fiscal del país, así como una de las empresas más grandes de América Latina.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 28,095 contacts → | ||||
Exact match “Petroliam Nasional Berhad (PETRONAS) is a leading global energy company committed to powering society’s progress in a responsible and sustainable manner.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 25,939 contacts → | ||||
Exact match “We are one of the world's leading energy producers, and a primary catalyst for Abu Dhabi’s growth and diversification.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 20,038 contacts → | ||||
Exact match “Eni is an integrated energy company, founded in 1953, with 31.376 employees in 69 countries around the world, including Algeria, Angola, Mozambique, Mexico, Indonesia and Italy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 18,628 contacts → | ||||
Exact match “Fortune Global 500 Company, Bharat Petroleum is the second largest Indian Oil Marketing Company and one of the premier integrated energy companies in India, engaged in refining of…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 16,245 contacts → | ||||
Exact match “Oxy is an international energy company that produces, markets and transports oil and natural gas to maximize value and provide resources fundamental to life.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 15,828 contacts → | ||||
Exact match “We are a global oil and gas company tasked with an important job-to safely find and deliver energy for the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 15,722 contacts → | ||||
Exact match “Maharatna ONGC is the largest producer of crude oil and natural gas in India, contributing around 70 per cent of Indian domestic production.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 14,332 contacts → | ||||
Exact match “We provide reliable energy for a world with growing demand.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 13,951 contacts → | ||||
Exact match “In 1967, we pioneered commercial development of Canada's oil sands – one of the largest petroleum resource basins in the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 12,478 contacts → | ||||
Exact match “We are the leading exploration and production company in the Sultanate of Oman that delivers the majority of the country's crude oil production and natural gas supply, but above…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 10,937 contacts → | ||||
Exact match “Ecopetrol (NYSE: EC) es la compañía más grande en Colombia y uno de los principales grupos de energía de Latinoamérica.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 9,405 contacts → | ||||
Exact match “Valero is an international manufacturer and marketer of transportation fuels and petrochemical products.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 6,379 contacts → | ||||
Exact match “Cenovus Energy Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 6,357 contacts → | ||||
Exact match “One of the largest energy corporation in the world and is a super-large petroleum and petrochemical enterprise grou” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 5,559 contacts → | ||||
Exact match “We aim to thrive through the global energy transition with a low-cost, lower-carbon, profitable, resilient and diversified portfolio.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 4,897 contacts → | ||||
Exact match “Emirates National Oil Company Group (ENOC) is a leading integrated global oil and gas player operating across the energy sector value chain.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 4,646 contacts → | ||||
Exact match “Cepsa is a leading international company committed to sustainable mobility and energy with strong technical expertise after more than 90 years of activity.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 4,396 contacts → | ||||
Exact match “CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 4,277 contacts → | ||||
Exact match “After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 4,179 contacts → | ||||
Exact match “MOL Group is an integrated, international oil and gas company, headquartered in Budapest, Hungary.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 4,121 contacts → | ||||
Exact match “Nayara Energy is an international energy company with a strong presence in the hydrocarbon value chain ranging from refining to production and marketing to retail.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “biggest oil companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,369 biggest oil companies worldwide
See the full list, filter by size, metro and specialty, and access 99,380 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Biggest oil companies worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for biggest oil companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “biggest oil companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 99,380 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Biggest oil companies by location
7 lists · largest firstEvery Biggest oil companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Biggest oil companies based in the United States379
- Biggest oil companies based in the United Kingdom85
- Biggest oil companies based in Nigeria49
- Biggest oil companies based in the United Arab Emirates43
- Biggest oil companies based in Brazil42
- Biggest oil companies based in India42
- Biggest oil companies based in Canada31
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “biggest oil companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many biggest oil companies are there worldwide?
RevenueBase identified 1,369 company matches for biggest oil companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Aramco tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most biggest oil companies?
The United States leads with 379 companies, followed by the United Kingdom (85) and Nigeria (49). Every biggest oil companies list by country and city is linked on this page.
Which city has the most biggest oil companies?
Houston leads with 52 company records, followed by Calgary (22) and London (21).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 99,380 professional contacts with verified work emails tracked across these 1,369 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,369 biggest oil companies worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 biggest oil companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,369 matching company records for biggest oil companies worldwide, with 650,988 tracked contacts and 99,380 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 biggest oil companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Aramcoaramco.comHQ: Dhahran, Saudi ArabiaReported employees: 10001+ | Dhahran, Saudi Arabia | 10001+ | Exact match | 111,637 contacts → |
“We’re a leading producer of the energy and chemicals that drive global commerce and enhance the daily lives of people around the globe by continuing delivering an uninterrupted…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Chevronchevron.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 60,138 contacts → |
“Our greatest resource is our people.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sonatrachsonatrach.com HQ: Hydra, AlgeriaReported employees: 10001+ | Hydra, Algeria | 10001+ | Exact match | 36,135 contacts → |
“Sonatrach (Société Nationale pour la Recherche, la Production, le Transport, la Transformation, et la Commercialisation des Hydrocarbures s.p.a.) is an Algerian government-owned…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  PEMEXpemex.comHQ: México, MexicoReported employees: 10001+ | México, Mexico | 10001+ | Exact match | 35,924 contacts → |
“Petróleos Mexicanos es la mayor empresa de México, el mayor contribuyente fiscal del país, así como una de las empresas más grandes de América Latina.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Petronaspetronas.com HQ: Kuala Lumpur, MalaysiaReported employees: 10001+ | Kuala Lumpur, Malaysia | 10001+ | Exact match | 28,095 contacts → |
“Petroliam Nasional Berhad (PETRONAS) is a leading global energy company committed to powering society’s progress in a responsible and sustainable manner.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Adnoc Groupadnoc.aeHQ: Abu Dhabi, United Arab EmiratesReported employees: 10001+ | Abu Dhabi, United Arab Emirates | 10001+ | Exact match | 25,939 contacts → |
“We are one of the world's leading energy producers, and a primary catalyst for Abu Dhabi’s growth and diversification.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  ENIeni.comHQ: Rome, ItalyReported employees: 10001+ | Rome, Italy | 10001+ | Exact match | 20,038 contacts → |
“Eni is an integrated energy company, founded in 1953, with 31.376 employees in 69 countries around the world, including Algeria, Angola, Mozambique, Mexico, Indonesia and Italy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Bharat Petroleum Corporation Limitedbharatpetroleum.inHQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 18,628 contacts → |
“Fortune Global 500 Company, Bharat Petroleum is the second largest Indian Oil Marketing Company and one of the premier integrated energy companies in India, engaged in refining of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  OXYoxy.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 16,245 contacts → |
“Oxy is an international energy company that produces, markets and transports oil and natural gas to maximize value and provide resources fundamental to life.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Conocophillipsconocophillips.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 15,828 contacts → |
“We are a global oil and gas company tasked with an important job-to safely find and deliver energy for the world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | OIL And Natural GAS Corporation LTDongcindia.com HQ: New Delhi, IndiaReported employees: 10001+ | New Delhi, India | 10001+ | Exact match | 15,722 contacts → |
“Maharatna ONGC is the largest producer of crude oil and natural gas in India, contributing around 70 per cent of Indian domestic production.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Equinorequinor.comHQ: Stavanger, NorwayReported employees: 10001+ | Stavanger, Norway | 10001+ | Exact match | 14,332 contacts → |
“We provide reliable energy for a world with growing demand.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Suncorsuncor.comHQ: Calgary, AB, CanadaReported employees: 10001+ | Calgary, AB, Canada | 10001+ | Exact match | 13,951 contacts → |
“In 1967, we pioneered commercial development of Canada's oil sands – one of the largest petroleum resource basins in the world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Petroleum Development Omanpdo.co.om HQ: Muscat, OmanReported employees: 5,001-10,000 | Muscat, Oman | 5,001-10,000 | Exact match | 12,478 contacts → |
“We are the leading exploration and production company in the Sultanate of Oman that delivers the majority of the country's crude oil production and natural gas supply, but above…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ecopetrolecopetrol.com.co HQ: Bogota, ColombiaReported employees: 10001+ | Bogota, Colombia | 10001+ | Exact match | 10,937 contacts → |
“Ecopetrol (NYSE: EC) es la compañía más grande en Colombia y uno de los principales grupos de energía de Latinoamérica.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Valerovalero.comHQ: San Antonio, TX, United StatesReported employees: 10001+ | San Antonio, TX, United States | 10001+ | Exact match | 9,405 contacts → |
“Valero is an international manufacturer and marketer of transportation fuels and petrochemical products.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cenovus Energycenovus.comHQ: Calgary, AB, CanadaReported employees: 5,001-10,000 | Calgary, AB, Canada | 5,001-10,000 | Exact match | 6,379 contacts → |
“Cenovus Energy Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Sinopecsinopec.com HQ: ChinaReported employees: 10001+ | China | 10001+ | Exact match | 6,357 contacts → |
“One of the largest energy corporation in the world and is a super-large petroleum and petrochemical enterprise grou” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Woodside Energywoodside.comHQ: Perth, AustraliaReported employees: 1,001-5,000 | Perth, Australia | 1,001-5,000 | Exact match | 5,559 contacts → |
“We aim to thrive through the global energy transition with a low-cost, lower-carbon, profitable, resilient and diversified portfolio.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | ENOCenoc.com HQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 4,897 contacts → |
“Emirates National Oil Company Group (ENOC) is a leading integrated global oil and gas player operating across the energy sector value chain.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  CEPSAcepsa.comHQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 4,646 contacts → |
“Cepsa is a leading international company committed to sustainable mobility and energy with strong technical expertise after more than 90 years of activity.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  CITGOcitgo.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 4,396 contacts → |
“CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Imperial OILimperialoil.caHQ: Calgary, AB, CanadaReported employees: 5,001-10,000 | Calgary, AB, Canada | 5,001-10,000 | Exact match | 4,277 contacts → |
“After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | MOL Groupmolgroup.info HQ: Budapest, HungaryReported employees: 10001+ | Budapest, Hungary | 10001+ | Exact match | 4,179 contacts → |
“MOL Group is an integrated, international oil and gas company, headquartered in Budapest, Hungary.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Nayara Energynayaraenergy.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 4,121 contacts → |
“Nayara Energy is an international energy company with a strong presence in the hydrocarbon value chain ranging from refining to production and marketing to retail.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,369 company matches
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Biggest oil companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,365 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,369 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Biggest oil companies by location
7 lists · largest firstEvery Biggest oil companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Biggest oil companies based in the United States379
- Biggest oil companies based in the United Kingdom85
- Biggest oil companies based in Nigeria49
- Biggest oil companies based in the United Arab Emirates43
- Biggest oil companies based in Brazil42
- Biggest oil companies based in India42
- Biggest oil companies based in Canada31
Questions about this company list
What does Exact match mean for biggest oil companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many biggest oil companies did RevenueBase find worldwide?
The saved snapshot records 1,369 matching company records, 650,988 tracked contacts and 99,380 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 biggest oil companies worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/biggest-oil-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 biggest oil companies worldwide
RevenueBase records 1,369 matching company records for biggest oil companies worldwide, with 650,988 tracked contacts and 99,380 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 biggest oil companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Aramcoaramco.com HQ: Dhahran, Saudi ArabiaReported employees: 10001+ | Dhahran, Saudi Arabia | 10001+ | Exact match | 111,637 contacts → |
“We’re a leading producer of the energy and chemicals that drive global commerce and enhance the daily lives of people around the globe by continuing delivering an uninterrupted…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Chevronchevron.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 60,138 contacts → |
“Our greatest resource is our people.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sonatrachsonatrach.com HQ: Hydra, AlgeriaReported employees: 10001+ | Hydra, Algeria | 10001+ | Exact match | 36,135 contacts → |
“Sonatrach (Société Nationale pour la Recherche, la Production, le Transport, la Transformation, et la Commercialisation des Hydrocarbures s.p.a.) is an Algerian government-owned…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | PEMEXpemex.com HQ: México, MexicoReported employees: 10001+ | México, Mexico | 10001+ | Exact match | 35,924 contacts → |
“Petróleos Mexicanos es la mayor empresa de México, el mayor contribuyente fiscal del país, así como una de las empresas más grandes de América Latina.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Petronaspetronas.com HQ: Kuala Lumpur, MalaysiaReported employees: 10001+ | Kuala Lumpur, Malaysia | 10001+ | Exact match | 28,095 contacts → |
“Petroliam Nasional Berhad (PETRONAS) is a leading global energy company committed to powering society’s progress in a responsible and sustainable manner.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Adnoc Groupadnoc.ae HQ: Abu Dhabi, United Arab EmiratesReported employees: 10001+ | Abu Dhabi, United Arab Emirates | 10001+ | Exact match | 25,939 contacts → |
“We are one of the world's leading energy producers, and a primary catalyst for Abu Dhabi’s growth and diversification.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | ENIeni.com HQ: Rome, ItalyReported employees: 10001+ | Rome, Italy | 10001+ | Exact match | 20,038 contacts → |
“Eni is an integrated energy company, founded in 1953, with 31.376 employees in 69 countries around the world, including Algeria, Angola, Mozambique, Mexico, Indonesia and Italy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Bharat Petroleum Corporation Limitedbharatpetroleum.in HQ: Mumbai, IndiaReported employees: 10001+ | Mumbai, India | 10001+ | Exact match | 18,628 contacts → |
“Fortune Global 500 Company, Bharat Petroleum is the second largest Indian Oil Marketing Company and one of the premier integrated energy companies in India, engaged in refining of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | OXYoxy.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 16,245 contacts → |
“Oxy is an international energy company that produces, markets and transports oil and natural gas to maximize value and provide resources fundamental to life.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Conocophillipsconocophillips.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 15,828 contacts → |
“We are a global oil and gas company tasked with an important job-to safely find and deliver energy for the world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | OIL And Natural GAS Corporation LTDongcindia.com HQ: New Delhi, IndiaReported employees: 10001+ | New Delhi, India | 10001+ | Exact match | 15,722 contacts → |
“Maharatna ONGC is the largest producer of crude oil and natural gas in India, contributing around 70 per cent of Indian domestic production.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Equinorequinor.com HQ: Stavanger, NorwayReported employees: 10001+ | Stavanger, Norway | 10001+ | Exact match | 14,332 contacts → |
“We provide reliable energy for a world with growing demand.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Suncorsuncor.com HQ: Calgary, AB, CanadaReported employees: 10001+ | Calgary, AB, Canada | 10001+ | Exact match | 13,951 contacts → |
“In 1967, we pioneered commercial development of Canada's oil sands – one of the largest petroleum resource basins in the world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Petroleum Development Omanpdo.co.om HQ: Muscat, OmanReported employees: 5,001-10,000 | Muscat, Oman | 5,001-10,000 | Exact match | 12,478 contacts → |
“We are the leading exploration and production company in the Sultanate of Oman that delivers the majority of the country's crude oil production and natural gas supply, but above…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ecopetrolecopetrol.com.co HQ: Bogota, ColombiaReported employees: 10001+ | Bogota, Colombia | 10001+ | Exact match | 10,937 contacts → |
“Ecopetrol (NYSE: EC) es la compañía más grande en Colombia y uno de los principales grupos de energía de Latinoamérica.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Valerovalero.com HQ: San Antonio, TX, United StatesReported employees: 10001+ | San Antonio, TX, United States | 10001+ | Exact match | 9,405 contacts → |
“Valero is an international manufacturer and marketer of transportation fuels and petrochemical products.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cenovus Energycenovus.com HQ: Calgary, AB, CanadaReported employees: 5,001-10,000 | Calgary, AB, Canada | 5,001-10,000 | Exact match | 6,379 contacts → |
“Cenovus Energy Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Sinopecsinopec.com HQ: ChinaReported employees: 10001+ | China | 10001+ | Exact match | 6,357 contacts → |
“One of the largest energy corporation in the world and is a super-large petroleum and petrochemical enterprise grou” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Woodside Energywoodside.com HQ: Perth, AustraliaReported employees: 1,001-5,000 | Perth, Australia | 1,001-5,000 | Exact match | 5,559 contacts → |
“We aim to thrive through the global energy transition with a low-cost, lower-carbon, profitable, resilient and diversified portfolio.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | ENOCenoc.com HQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 4,897 contacts → |
“Emirates National Oil Company Group (ENOC) is a leading integrated global oil and gas player operating across the energy sector value chain.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | CEPSAcepsa.com HQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 4,646 contacts → |
“Cepsa is a leading international company committed to sustainable mobility and energy with strong technical expertise after more than 90 years of activity.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | CITGOcitgo.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 4,396 contacts → |
“CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Imperial OILimperialoil.ca HQ: Calgary, AB, CanadaReported employees: 5,001-10,000 | Calgary, AB, Canada | 5,001-10,000 | Exact match | 4,277 contacts → |
“After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | MOL Groupmolgroup.info HQ: Budapest, HungaryReported employees: 10001+ | Budapest, Hungary | 10001+ | Exact match | 4,179 contacts → |
“MOL Group is an integrated, international oil and gas company, headquartered in Budapest, Hungary.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Nayara Energynayaraenergy.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 4,121 contacts → |
“Nayara Energy is an international energy company with a strong presence in the hydrocarbon value chain ranging from refining to production and marketing to retail.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Biggest oil companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,365 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,369 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Biggest oil companies by location
7 lists · largest firstEvery Biggest oil companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Biggest oil companies based in the United States379
- Biggest oil companies based in the United Kingdom85
- Biggest oil companies based in Nigeria49
- Biggest oil companies based in the United Arab Emirates43
- Biggest oil companies based in Brazil42
- Biggest oil companies based in India42
- Biggest oil companies based in Canada31
Questions about this company list
What does Exact match mean for biggest oil companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many biggest oil companies did RevenueBase find worldwide?
The saved snapshot records 1,369 matching company records, 650,988 tracked contacts and 99,380 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 biggest oil companies worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/biggest-oil-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗