Company lists · Data refreshed October 2026

Top 25 Oil field development services based in the United States

Name: Oil field development services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 28, 2026 3,149 companies tracked

RevenueBase identified 3,149 company matches for oil field development services associated with the United States as of October 2026 and tracks 337,797 professional contacts across them, including 88,840 with verified work emails. Houston is the largest hub.

This list covers company matches for oil field development services associated with the United States, 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 28, 2026.

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 28, 2026 How this list was built

3,149Companies

337,797Contacts tracked

88,840Verified emails

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The 25 largest oil field development services based in the United States

Ranked by team size

Top 25 of 3,149 company matches for oil field development services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 28, 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 Oct 28, 2026	10001+	73,403 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 · Oct 28, 2026 · View company records in RevenueBase
2	Halliburton	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 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 28, 2026 · View company records in RevenueBase
3	NOV	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	10001+	30,910 contacts →
	Exact match “NOV delivers technology-driven solutions to empower the global energy industry.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
4	Mcdermott International, LTD	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	10001+	21,087 contacts →
	Exact match “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
5	EXPRO	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	5,001-10,000	6,721 contacts →
	Exact match “Long recognized for extraordinary performance, superb safety and long-standing partnerships, and now incorporating Frank’s International, Expro is focused on enabling our…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
6	Nabors Industries	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	10001+	6,266 contacts →
	Exact match “Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
7	Noble Corporation	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	5,001-10,000	5,939 contacts →
	Exact match “Noble is a leading offshore drilling contractor for the oil and gas industry.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
8	NESR	Exact match	Houston, United StatesHQ recorded Oct 28, 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 28, 2026 · View company records in RevenueBase
9	Boart Longyear	Exact match	West Valley City, UT, United StatesHQ recorded Oct 28, 2026	5,001-10,000	3,518 contacts →
	Exact match “Established in 1890, Boart Longyear is the world’s leading innovative provider of drilling services, manufacturer of productivity-driven drilling equipment and performance…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
10	Valaris Limited	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	5,001-10,000	3,263 contacts →
	Exact match “We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
11	KEY Energy Services	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	2,923 contacts →
	Exact match “Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
12	Patterson-Uti	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	10001+	2,444 contacts →
	Exact match “Patterson-UTI is a leading provider of drilling and completion services to oil and natural gas exploration and production companies in the United States and other select…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
13	Superior Energy Services	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	2,076 contacts →
	Exact match “For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
14	Helix Energy Solutions Group	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,771 contacts →
	Exact match “Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
15	Weir OIL And GAS	Exact match	Fort Worth, TX, United StatesHQ recorded Oct 28, 2026	n/a	1,713 contacts →
	Exact match “Caterpillar Inc.(NYSE:CAT) has completed its acquisition of the Oil & Gas Division (“Weir Oil & Gas”) of the Weir Group PLC, a Scotland-based global engineering business.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
16	Audubon Companies	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,652 contacts →
	Exact match “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
17	OIL States International	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	5,001-10,000	1,652 contacts →
	Exact match “Oil States International, Inc.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
18	Core Laboratories	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,543 contacts →
	Exact match “With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
19	Atwell, LLC	Exact match	Southfield, MI, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,499 contacts →
	Exact match “Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
20	Dril-Quip	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,427 contacts →
	Exact match “Dril-Quip is part of Innovex, a unique energy industrial platform.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
21	PMI	Exact match	Irvine, CA, United StatesHQ recorded Oct 28, 2026	n/a	1,361 contacts →
	Exact match “Training and Development Solutions” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
22	Cudd Energy Services	Exact match	The Woodlands, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,329 contacts →
	Exact match “Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
23	Newpark	Exact match	Katy, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,274 contacts →
	Exact match “Newpark Fluids Systems is the world’s leading pure-play oil & gas and geothermal fluid solutions provider.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
24	Englobal	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	201-500	1,203 contacts →
	Exact match “Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
25	Gulf Companies	Exact match	Houston, TX, United StatesHQ recorded Oct 28, 2026	1,001-5,000	1,171 contacts →
	Exact match “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Recorded in the RevenueBase company graph · Oct 28, 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 “oil field development 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 3,149 oil field development services based in the United States

See the full list, filter by size, metro and specialty, and access 88,840 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil field development services based in the United States at a glance

As of Oct 28, 2026

26.3%Verified-email coverage

107.3Average contacts per company

11-50Median size (employees)

20.5%Largest-city concentration · Houston

Oct 28, 2026Page data refreshed

Companies by employee count

1-10

1,048

11-50

1,045

51-200

689

201-500

188

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,149 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “oil field development 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 88,840 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 28, 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.

Oil field development services by metro

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

How many oil field development services are there based in the United States?

RevenueBase identified 3,149 company matches for oil field development services associated with the United States 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?

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

Which city has the most oil field development services?

Houston leads with 646 company records, followed by Midland (161) and Odessa (76).

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 88,840 professional contacts with verified work emails tracked across these 3,149 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 28, 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.