Company lists · Data refreshed September 2026
Top 25 Refining companies worldwide
RevenueBase identified 3,092 refining companies worldwide as of September 2026 and tracks 446,391 professional contacts across them, including 67,652 with verified work emails. The United States is the largest market and Dubai the largest hub.
This list covers refining companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026. Country and city lists for refining companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 refining companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 111,637 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 36,135 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 25,939 contacts → | ||||
Indirect evidence “We are one of the world's leading energy producers, and a primary catalyst for Abu Dhabi’s growth and diversification.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 18,628 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 14,238 contacts → | ||||
Indirect evidence “Marathon Petroleum Corporation (MPC) is a leading, integrated, downstream and midstream energy company headquartered in Findlay, Ohio.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 9,405 contacts → | ||||
Indirect evidence “Valero is an international manufacturer and marketer of transportation fuels and petrochemical products.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 6,379 contacts → | ||||
Indirect evidence “Cenovus Energy Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5,175 contacts → | ||||
Indirect evidence “Engen, a Vivo Energy brand, is an African-based energy company committed to powering progress - responsibly and sustainably.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4,897 contacts → | ||||
Indirect evidence “Emirates National Oil Company Group (ENOC) is a leading integrated global oil and gas player operating across the energy sector value chain.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 4,642 contacts → | ||||
Indirect evidence “Hess Corporation is a global independent energy company engaged in the exploration and production of crude oil and natural gas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 4,419 contacts → | ||||
Indirect evidence “Desde hace 90 años, Copec está presente en Chile, comercializando, almacenando y distribuyendo combustibles y lubricantes desde Arica a Puerto Williams.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4,396 contacts → | ||||
Strong evidence “CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4,277 contacts → | ||||
Indirect evidence “After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4,235 contacts → | ||||
Indirect evidence “Established in 2011, Vivo Energy is the company that distributes and markets Shell and Engen branded fuels and lubricants to retail and commercial customers in Africa and beyond.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4,121 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3,458 contacts → | ||||
Indirect evidence “Petron Corporation is the largest oil company in the Philippines, operating the country’s only remaining refinery.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3,288 contacts → | ||||
Indirect evidence “HPCL-Mittal Energy Limited (HMEL) is a joint venture between Hindustan Petroleum Corporation Limited (HPCL) and Mittal Energy Investment Pte Ltd, Singapore, a Lakshmi N Mittal…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3,249 contacts → | ||||
Strong evidence “The Saudi Aramco Total Refining and Petrochemical Company (SATORP) is one of the most advanced refineries in the world, with a processing capacity of barrels per day of Arabian…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3,005 contacts → | ||||
Strong evidence “Rabigh Refining & Petrochemical Co- Petro Rabigh - was founded as a joint venture between Saudi Aramco and Sumitomo Chemical in 2005.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2,891 contacts → | ||||
Strong evidence “Flint Hills Resources is a leading refining company with operations primarily in the Midwest and Texas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2,871 contacts → | ||||
Indirect evidence “Somos una marca de Pan American Energy, nos desempeñamos en el mercado de la refinación y comercialización de combustibles, lubricantes y derivados.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2,668 contacts → | ||||
Indirect evidence “Headquartered in Houston, Texas, Motiva refines, distributes and markets petroleum products throughout the Americas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2,433 contacts → | ||||
Indirect evidence “PARCO - PAK-ARAB REFINERY LTD.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2,259 contacts → | ||||
Indirect evidence “Bapco (with a legacy of being referred to as “The Company” in Arabic - Ash Shariqa locally) is a trusted and enterprising organisation, which has never stood still since its…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2,170 contacts → | ||||
Strong evidence “Refining & Petrochemicals Business Group of Pertamina” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: refining companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names refining companies.
- Partial evidence
- Its own public description names part of refining companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name refining companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 3,092 refining companies worldwide
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Refining 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
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among refining companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for refining companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “refining companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names refining companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among refining companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 67,652 across the full list. 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.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Refining companies by location
15 lists · largest firstEvery Refining companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Refining companies based in the United States558
- Refining companies based in India235
- Refining companies based in the United Arab Emirates188
- Refining companies based in Italy143
- Refining companies based in Brazil88
- Refining companies based in Nigeria86
- Refining companies based in the United Kingdom85
- Refining companies based in Germany80
- Refining companies based in Türkiye69
- Refining companies based in South Africa60
- Refining companies based in Canada54
- Refining companies based in the Netherlands42
- Refining companies based in Egypt38
- Refining companies based in Switzerland27
- Refining companies based in Saudi Arabia25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names refining companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many refining companies are there worldwide?
RevenueBase identified 3,092 refining companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Aramco, headquartered in Dhahran, tops this list with the largest team on record.
Which country has the most refining companies?
The United States leads with 558 companies, followed by India (235) and the United Arab Emirates (188). Every refining companies list by country and city is linked on this page.
Which city has the most refining companies?
Dubai leads with 90 headquartered companies, followed by Houston (63) and Tehran (57).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 67,652 verified decision-maker contacts tracked across these 3,092 companies.
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.
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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 Smart Search, 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.