Company lists · Data refreshed September 2026

Top 25 Refinery operators worldwide

Name: Refinery operators worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 3,013 companies tracked

RevenueBase identified 3,013 refinery operators worldwide as of September 2026 and tracks 319,624 professional contacts across them, including 63,672 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers refinery operators 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 refinery operators 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

3,013Companies

319,624Contacts tracked

63,672Verified emails

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The 25 largest refinery operators worldwide

Ranked by team size

Top 25 of 3,013 refinery operators worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to refinery operators: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sonatrach	Indirect evidence	Hydra, AlgeriaHQ checked Sep 21, 2026	10001+	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, 2026
2	Adnoc Group	Indirect evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 21, 2026	10001+	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, 2026
3	Bharat Petroleum Corporation Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	10001+	18,628 contacts →
	Indirect 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, 2026
4	Marathon Petroleum Corporation	Indirect evidence	Findlay, OH, United StatesHQ checked Sep 21, 2026	10001+	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, 2026
5	Valero	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	10001+	9,405 contacts →
	Indirect evidence “Valero is an international manufacturer and marketer of transportation fuels and petrochemical products.” Source: RevenueBase Database · checked Sep 21, 2026
6	Cenovus Energy	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	5,001-10,000	6,379 contacts →
	Indirect evidence “Cenovus Energy Inc.” Source: RevenueBase Database · checked Sep 21, 2026
7	ENOC	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 21, 2026	5,001-10,000	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, 2026
8	Hess Corporation	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	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, 2026
9	Copec S.A	Indirect evidence	Las Condes, ChileHQ checked Sep 21, 2026	1,001-5,000	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, 2026
10	CITGO	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,396 contacts →
	Indirect 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, 2026
11	Imperial OIL	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	5,001-10,000	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, 2026
12	Nayara Energy	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	4,121 contacts →
	Indirect 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, 2026
13	Petron Corporation	Partial evidence	Mandaluyong City, PhilippinesHQ checked Sep 21, 2026	1,001-5,000	3,458 contacts →
	Partial evidence “Petron Corporation is the largest oil company in the Philippines, operating the country’s only remaining refinery.” Source: RevenueBase Database · checked Sep 21, 2026
14	Hpcl-Mittal Energy Limited	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	1,001-5,000	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, 2026
15	Saudi Aramco Total Refining And Petrochemical Company Satorp	Partial evidence	Jubail, Saudi ArabiaHQ checked Sep 21, 2026	1,001-5,000	3,249 contacts →
	Partial 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, 2026
16	Petro Rabigh	Indirect evidence	Rabigh, Saudi ArabiaHQ checked Sep 21, 2026	1,001-5,000	3,005 contacts →
	Indirect 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, 2026
17	Flint Hills Resources	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,891 contacts →
	Indirect evidence “Flint Hills Resources is a leading refining company with operations primarily in the Midwest and Texas.” Source: RevenueBase Database · checked Sep 21, 2026
18	Motiva Enterprises LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,668 contacts →
	Partial evidence “Headquartered in Houston, Texas, Motiva refines, distributes and markets petroleum products throughout the Americas.” Source: RevenueBase Database · checked Sep 21, 2026
19	PARCO	Partial evidence	Karachi, PakistanHQ checked Sep 21, 2026	1,001-5,000	2,433 contacts →
	Partial evidence “PARCO - PAK-ARAB REFINERY LTD.” Source: RevenueBase Database · checked Sep 21, 2026
20	Bapco Refining	Indirect evidence	Awali, BahrainHQ checked Sep 21, 2026	1,001-5,000	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, 2026
21	PT Kilang Pertamina Internasional	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 21, 2026	501-1,000	2,170 contacts →
	Indirect evidence “Refining & Petrochemicals Business Group of Pertamina” Source: RevenueBase Database · checked Sep 21, 2026
22	Rompetrol KMG International	Indirect evidence	Bucharest, RomaniaHQ checked Sep 21, 2026	5,001-10,000	2,135 contacts →
	Indirect evidence “Rompetrol is the place where over ambitious minds, having 200 qualifications, spread across 11 countries, connect and share knowledge to create the energy we need to move forward.” Source: RevenueBase Database · checked Sep 21, 2026
23	HF Sinclair	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 21, 2026	5,001-10,000	2,026 contacts →
	Indirect evidence “Headquartered in Dallas, Texas, HF Sinclair Corporation is an independent, diversified energy company committed to safely producing products that power the world.” Source: RevenueBase Database · checked Sep 21, 2026
24	Tesoro Corporation	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,795 contacts →
	Indirect evidence “Tesoro has acquired Western Refining and adopted a new name, Andeavor.” Source: RevenueBase Database · checked Sep 21, 2026
25	PBF Energy	Indirect evidence	Parsippany, NJ, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,633 contacts →
	Indirect evidence “Our mission is to identify attractive acquisition opportunities in the petroleum refining industry in North America and execute acquisitions that provide superior returns to our…” Source: RevenueBase Database · checked Sep 21, 2026

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: refinery operators. 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 refinery operators.
Partial evidence: Its own public description names part of refinery operators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery operators. 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 3,013 refinery operators worldwide

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Refinery operators worldwide at a glance

As of Sep 21, 2026

19.9%Verified-email coverage

106.1Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

712

11-50

947

51-200

657

201-500

316

501-1,000

137

1,001-5,000

153

5,001-10,000

10001+

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 refinery operators, 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 refinery operators are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “refinery operators”. 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 refinery operators), 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 refinery operators, 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, 63,672 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.

Refinery operators by location

17 lists · largest first

Every Refinery operators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 refinery operators, 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 refinery operators are there worldwide?

RevenueBase identified 3,013 refinery operators 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?

Sonatrach, headquartered in Hydra, tops this list with the largest team on record.

Which country has the most refinery operators?

The United States leads with 566 companies, followed by India (225) and the United Arab Emirates (158). Every refinery operators list by country and city is linked on this page.

Which city has the most refinery operators?

Houston leads with 78 headquartered companies, followed by Tehran (71) and Dubai (68).

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 63,672 verified decision-maker contacts tracked across these 3,013 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.