Company lists · Data refreshed September 2026

Top 25 Oilfield companies worldwide

Name: Oilfield companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 16,168 companies tracked

RevenueBase identified 16,168 company matches for oilfield companies worldwide as of September 2026 and tracks 1,125,133 professional contacts across them, including 218,395 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for oilfield 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 oilfield 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

16,168Companies

1,125,133Contacts tracked

218,395Verified emails

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The 25 largest oilfield companies worldwide

Ranked by team size

Top 25 of 16,168 company matches for oilfield companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	SLB	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	10001+	76,561 contacts →
	Exact match “SLB is a global technology company that has driven energy innovation for more than a century.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Baker Hughes	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	10001+	61,166 contacts →
	Exact match “Baker Hughes (NASDAQ: BKR) is an energy technology company that provides solutions for energy and industrial customers worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Halliburton	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	10001+	53,380 contacts →
	Exact match “We collaborate and engineer solutions to maximize asset value for our customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Sonatrach	Exact match	Hydra, AlgeriaHQ recorded Sep 21, 2026	10001+	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
5	Saipem	Exact match	Milan, ItalyHQ recorded Sep 21, 2026	10001+	34,095 contacts →
	Exact match “Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	NOV	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	10001+	29,577 contacts →
	Exact match “NOV delivers technology-driven solutions to empower the global energy industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Petronas	Exact match	Kuala Lumpur, MalaysiaHQ recorded Sep 21, 2026	10001+	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
8	Conocophillips	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	10001+	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
9	Aker Solutions	Exact match	Fornebu, NorwayHQ recorded Sep 21, 2026	10001+	15,774 contacts →
	Exact match “Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Petroleum Development Oman	Exact match	Muscat, OmanHQ recorded Sep 21, 2026	5,001-10,000	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
11	Technip Former Company	Exact match	United KingdomHQ recorded Sep 21, 2026	10001+	11,255 contacts →
	Exact match “Technip is a former company that was separated into two independent companies: TechnipFMC and Technip Energies, which now operate with no capital ties.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Transocean	Exact match	Zug, SwitzerlandHQ recorded Sep 21, 2026	1,001-5,000	10,068 contacts →
	Exact match “Transocean is a leading international provider of offshore contract drilling services for oil and gas wells.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	SBM Offshore	Exact match	Amsterdam, NetherlandsHQ recorded Sep 21, 2026	5,001-10,000	8,478 contacts →
	Exact match “SBM Offshore is the world’s deepwater ocean-infrastructure expert.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Nabors Industries	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	10001+	5,865 contacts →
	Exact match “Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Noble Corporation	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	5,001-10,000	5,601 contacts →
	Exact match “Noble is a leading offshore drilling contractor for the oil and gas industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	W&t Offshore Inc. Nyse WTI	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	n/a	5,489 contacts →
	Exact match “We are an independent oil and natural gas acquisition, exploitation and exploration company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Perenco	Exact match	Londres, United KingdomHQ recorded Sep 21, 2026	5,001-10,000	5,220 contacts →
	Exact match “Founded over thirty years ago, Perenco is an independent hydrocarbon producer involved in the entire lifecycle of projects, from exploration to decommissioning.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	MODEC	Exact match	Chuo-ku, JapanHQ recorded Sep 21, 2026	5,001-10,000	5,077 contacts →
	Exact match “MODEC has been a leading provider of solutions for the floating offshore oil and gas market for over 50 years.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Seadrill	Exact match	Houston, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,845 contacts →
	Exact match “Seadrill is setting the standard in deepwater oil and gas drilling.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Hess Corporation	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,642 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 · Sep 21, 2026 · View company records in RevenueBase
21	MOL Group	Exact match	Budapest, HungaryHQ recorded Sep 21, 2026	10001+	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
22	Cotemar	Exact match	Ciudad Del Carmen, MexicoHQ recorded Sep 21, 2026	5,001-10,000	4,138 contacts →
	Exact match “We are Mexican company specialized in services for the oil industry since 1979.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	PT Elnusa TBK	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 21, 2026	1,001-5,000	3,932 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 · Sep 21, 2026 · View company records in RevenueBase
24	NESR	Exact match	Houston, United StatesHQ recorded Sep 21, 2026	5,001-10,000	3,683 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 · Sep 21, 2026 · View company records in RevenueBase
25	Murphy OIL Corporation	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	n/a	3,514 contacts →
	Exact match “Murphy Oil Corporation is a global independent oil and natural gas exploration and production company.” 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 “oilfield 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 16,168 oilfield companies worldwide

See the full list, filter by size, metro and specialty, and access 218,395 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oilfield companies worldwide at a glance

As of Sep 21, 2026

19.4%Verified-email coverage

69.6Average contacts per company

11-50Median size (employees)

5.0%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

4,402

11-50

5,579

51-200

3,549

201-500

1,332

501-1,000

556

1,001-5,000

506

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 oilfield companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “oilfield 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 218,395 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.

Oilfield companies by location

77 lists · largest first

Every Oilfield companies 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 “oilfield companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oilfield companies are there worldwide?

RevenueBase identified 16,168 company matches for oilfield 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?

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

Which country has the most oilfield companies?

The United States leads with 4,737 companies, followed by Canada (1,098) and Nigeria (860). Every oilfield companies list by country and city is linked on this page.

Which city has the most oilfield companies?

Houston leads with 801 company records, followed by Calgary (351) and Midland (281).

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 218,395 professional contacts with verified work emails tracked across these 16,168 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.

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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.