Company lists · Data refreshed October 2026

Top 25 Downstream oil and gas services worldwide

Name: Downstream oil and gas services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 8,186 companies tracked

RevenueBase identified 8,186 company matches for downstream oil and gas services worldwide as of October 2026 and tracks 911,047 professional contacts across them, including 150,064 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for downstream oil and gas services 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 October 11, 2026. Country and city lists for downstream oil and gas services 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 11, 2026 How this list was built

8,186Companies

911,047Contacts tracked

150,064Verified emails

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The 25 largest downstream oil and gas services worldwide

Ranked by team size

Top 25 of 8,186 company matches for downstream oil and gas services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	SHELL	Exact match	London, United KingdomHQ recorded Oct 11, 2026	10001+	120,607 contacts →
	Exact match “Shell is a global group of energy and petrochemical companies, employing people across 70+ countries.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	Aramco	Exact match	Dhahran, Saudi ArabiaHQ recorded Oct 11, 2026	10001+	113,588 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 · Oct 11, 2026 · View company records in RevenueBase
3	Halliburton	Exact match	Houston, TX, United StatesHQ recorded Oct 11, 2026	10001+	56,783 contacts →
	Exact match “We collaborate and engineer solutions to maximize asset value for our customers.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	Sonatrach	Exact match	Hydra, AlgeriaHQ recorded Oct 11, 2026	10001+	37,481 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 · Oct 11, 2026 · View company records in RevenueBase
5	PEMEX	Exact match	México, MexicoHQ recorded Oct 11, 2026	10001+	37,087 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 · Oct 11, 2026 · View company records in RevenueBase
6	Petronas	Exact match	Kuala Lumpur, MalaysiaHQ recorded Oct 11, 2026	10001+	29,120 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 · Oct 11, 2026 · View company records in RevenueBase
7	Adnoc Group	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Oct 11, 2026	10001+	26,212 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 · Oct 11, 2026 · View company records in RevenueBase
8	Bharat Petroleum Corporation Limited	Exact match	Mumbai, IndiaHQ recorded Oct 11, 2026	10001+	19,282 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 · Oct 11, 2026 · View company records in RevenueBase
9	Marathon Petroleum Corporation	Exact match	Findlay, OH, United StatesHQ recorded Oct 11, 2026	10001+	14,681 contacts →
	Exact match “Marathon Petroleum Corporation (MPC) is a leading, integrated, downstream and midstream energy company headquartered in Findlay, Ohio.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Phillips 66	Exact match	Houston, TX, United StatesHQ recorded Oct 11, 2026	10001+	11,885 contacts →
	Exact match “As a leading integrated downstream energy provider, we power the operations that keep life moving forward.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Valero	Exact match	San Antonio, TX, United StatesHQ recorded Oct 11, 2026	10001+	9,632 contacts →
	Exact match “Valero is an international manufacturer and marketer of transportation fuels and petrochemical products.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	Cenovus Energy	Exact match	Calgary, AB, CanadaHQ recorded Oct 11, 2026	5,001-10,000	6,524 contacts →
	Exact match “Cenovus Energy Inc.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	Puma Energy	Exact match	SingaporeHQ recorded Oct 11, 2026	1,001-5,000	5,884 contacts →
	Exact match “Puma Energy is a leading global downstream energy business, safely providing energy in more than 35 countries, primarily across central America and Sub-Saharan-Africa.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Ipiranga	Exact match	Rio De Janeiro, BrazilHQ recorded Oct 11, 2026	10001+	5,493 contacts →
	Exact match “Ipiranga is present in the mobility journey of millions of Brazilians, fueling life in motion.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	ENGEN	Exact match	Cape Town, South AfricaHQ recorded Oct 11, 2026	1,001-5,000	5,400 contacts →
	Exact match “Engen, a Vivo Energy brand, is an African-based energy company committed to powering progress - responsibly and sustainably.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	ENOC	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 11, 2026	5,001-10,000	4,916 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 · Oct 11, 2026 · View company records in RevenueBase
17	Copec S.A	Exact match	Las Condes, ChileHQ recorded Oct 11, 2026	1,001-5,000	4,708 contacts →
	Exact match “Desde hace 90 años, Copec está presente en Chile, comercializando, almacenando y distribuyendo combustibles y lubricantes desde Arica a Puerto Williams.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	Hess Corporation	Exact match	New York, NY, United StatesHQ recorded Oct 11, 2026	1,001-5,000	4,648 contacts →
	Exact match “Hess Corporation is a global independent energy company engaged in the exploration and production of crude oil and natural gas.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	CITGO	Exact match	Houston, TX, United StatesHQ recorded Oct 11, 2026	1,001-5,000	4,517 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 · Oct 11, 2026 · View company records in RevenueBase
20	Imperial OIL	Exact match	Calgary, AB, CanadaHQ recorded Oct 11, 2026	5,001-10,000	4,275 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 · Oct 11, 2026 · View company records in RevenueBase
21	Nayara Energy	Exact match	Mumbai, IndiaHQ recorded Oct 11, 2026	1,001-5,000	4,177 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 · Oct 11, 2026 · View company records in RevenueBase
22	PT Elnusa TBK	Exact match	Jakarta Selatan, IndonesiaHQ recorded Oct 11, 2026	1,001-5,000	4,167 contacts →
	Exact match “We are the one and only national company that possesses combined competencies in oil & gas services: seismic, drilling and oilfield.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	NESR	Exact match	Houston, United StatesHQ recorded Oct 11, 2026	5,001-10,000	3,884 contacts →
	Exact match “National Energy Services Reunited Corp.(NESR) was founded in 2017 as one of the largest national oilfield services providers in the MENA and Asia Pacific regions and was the first…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	Petron Corporation	Exact match	Mandaluyong City, PhilippinesHQ recorded Oct 11, 2026	1,001-5,000	3,839 contacts →
	Exact match “Petron Corporation is the largest oil company in the Philippines, operating the country’s only remaining refinery.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Petroperú S.A	Exact match	San Isidro, PeruHQ recorded Oct 11, 2026	1,001-5,000	3,740 contacts →
	Exact match “Petroperú is a state-owned company under private law dedicated to the exploration, exploitation, transportation, refining, distribution and commercialization of fuels and other…” Recorded in the RevenueBase company graph · Oct 11, 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 “downstream oil and gas services”. 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 8,186 downstream oil and gas services worldwide

See the full list, filter by size, metro and specialty, and access 150,064 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Downstream oil and gas services worldwide at a glance

As of Oct 11, 2026

16.5%Verified-email coverage

111.3Average contacts per company

11-50Median size (employees)

4.0%Largest-city concentration · Houston

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

2,115

11-50

2,834

51-200

1,760

201-500

744

501-1,000

288

1,001-5,000

280

5,001-10,000

10001+

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 downstream oil and gas services are linked below.
What qualifies: Company records worldwide whose business descriptions match “downstream oil and gas services” 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 150,064 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 October 11, 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.

Downstream oil and gas services by location

56 lists · largest first

Every Downstream oil and gas services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “downstream oil and gas services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downstream oil and gas services are there worldwide?

RevenueBase identified 8,186 company matches for downstream oil and gas services worldwide as of October 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?

SHELL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most downstream oil and gas services?

The United States leads with 1,924 companies, followed by Nigeria (533) and the United Arab Emirates (388). Every downstream oil and gas services list by country and city is linked on this page.

Which city has the most downstream oil and gas services?

Houston leads with 325 company records, followed by Dubai (149) and Port Harcourt (137).

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 150,064 professional contacts with verified work emails tracked across these 8,186 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 October 11, 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 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.