Company lists · Data refreshed November 2026

Top 19 Oil and gas research companies based in Houston, United States

RevenueBase identified 286 company matches for oil and gas research companies associated with Houston, United States as of November 2026 and tracks 98,389 professional contacts across them, including 30,260 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for oil and gas research companies associated with Houston, 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 November 4, 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 Nov 4, 2026 How this list was built
286Companies
98,389Contacts tracked
30,260Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 19 largest oil and gas research companies based in Houston, United States

Ranked by team size
Top 19 of 286 company matches for oil and gas research companies based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202610001+82,942 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 · Nov 4, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 4, 20261,001-5,0001,926 contacts →

Exact match

“TGS provides advanced data and intelligence to companies active in the energy sector.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 4, 20265,001-10,0001,831 contacts →

Exact match

“Oil States International, Inc.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202610001+1,610 contacts →

Exact match

“Founded in 1919, Halliburton is one of the world’s largest providers of products and services to the energy industry.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Nov 4, 20261,001-5,0001,601 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 · Nov 4, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Nov 4, 20261,001-5,0001,366 contacts →

Exact match

“FET (Forum Energy Technologies, Inc.) is a global company, serving the crude oil, natural gas, and renewable energy industries.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Nov 4, 2026n/a467 contacts →

Exact match

“Rigzone is the leading online resource for the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Nov 4, 2026201-500450 contacts →

Exact match

“EnerVest is a top-tier, low-cost oil and natural gas operating company.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202651-200339 contacts →

Exact match

“Vaalco Energy is a Houston-based independent energy company principally engaged in the acquisition, exploration, development and production of crude oil and natural gas.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 4, 2026201-500311 contacts →

Exact match

“Since our founding in 2006, NCS Multistage has grown to be a leading provider of engineered products and support services for oil and natural gas wells around the world.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202651-200135 contacts →

Exact match

“Hart Energy is the trusted source for news, data and analysis that drive decisions in U.S.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202651-200117 contacts →

Exact match

“Ryder Scott Company, L.P.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202651-20074 contacts →

Exact match

“We are Proshale.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202611-5066 contacts →

Exact match

“Founded in 1916, Gulf Energy Information produces and distributes leading trade journals, industry research, databases, software, publications, conferences and events designed for…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202651-20058 contacts →

Exact match

“Oil Consultants Inc is the US entity of Oil Consultants, the leading specialist recruitment company for the Oil and Gas industry.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202611-5046 contacts →

Exact match

“V-TIC Services is a startup company focused on providing Quality to industries worldwide.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Nov 4, 20261,001-5,00042 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
18Exact matchHouston, United StatesHQ recorded Nov 4, 202651-20040 contacts →

Exact match

“Provide equipment and services to Oil & Gas related companies with main emphasis on drilling companies.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Nov 4, 202611-5032 contacts →

Exact match

“Founded in 2014, Tachyus is a leader in operational optimization for the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase

Showing 19 of 286 oil and gas research companies based in Houston, United States

See the full list, filter by size, metro and specialty, and access 30,260 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas research companies based in Houston, United States at a glance

As of Nov 4, 2026
30.8%Verified-email coverage
344.0Average contacts per company
11-50Median size (employees)
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
136
11-50
89
51-200
35
201-500
10
501-1,000
1
1,001-5,000
9
5,001-10,000
3
10001+
2

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 286 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 Houston, United States whose business descriptions match “oil and gas research 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. 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 30,260 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 November 4, 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.

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 and gas research companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas research companies are there based in Houston, United States?

RevenueBase identified 286 company matches for oil and gas research companies associated with Houston, United States as of November 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 in the United States has the most oil and gas research companies?

Houston leads the United States with 286 company records, followed by Dallas (47) and Denver (32).

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 30,260 professional contacts with verified work emails tracked across these 286 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 November 4, 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.