Company lists · Data refreshed September 2026
Top 25 Upstream oil and gas operators based in Houston, United States
RevenueBase identified 183 company matches for upstream oil and gas operators associated with Houston, United States as of September 2026 and tracks 166,326 professional contacts across them, including 46,225 with verified work emails. Across the United States, Houston is the largest hub for this category.
This list covers company matches for upstream oil and gas operators 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 September 19, 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.
The 25 largest upstream oil and gas operators based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 60,138 contacts → | ||||
Exact match “Our greatest resource is our people.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 53,380 contacts → | ||||
Exact match “We collaborate and engineer solutions to maximize asset value for our customers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 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 19, 2026 · View company records in RevenueBase | |||||
| 4 | 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 19, 2026 · View company records in RevenueBase | |||||
| 5 | 4,346 contacts → | ||||
Exact match “EOG Resources, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 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 19, 2026 · View company records in RevenueBase | |||||
| 7 | 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 19, 2026 · View company records in RevenueBase | |||||
| 8 | 2,755 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 2,317 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 2,215 contacts → | ||||
Exact match “Oil States International, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 1,938 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 1,803 contacts → | ||||
Exact match “Hilcorp Energy Company was founded in 1989 with the vision of being the premier independent energy company in America.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 1,500 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 1,262 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 1,182 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 1,155 contacts → | ||||
Exact match “WE ARE NOBLE.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 1,071 contacts → | ||||
Exact match “NexTier is a leading provider of integrated completions focused on the most demanding land basins in the US.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 712 contacts → | ||||
Exact match “With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 424 contacts → | ||||
Exact match “EnerVest is a top-tier, low-cost oil and natural gas operating company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 379 contacts → | ||||
Exact match “Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 353 contacts → | ||||
Exact match “Crescent is a differentiated energy company committed to delivering value through a disciplined, returns-driven growth through acquisition strategy and consistent return of…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 337 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 328 contacts → | ||||
Exact match “ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 318 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 301 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 · Sep 19, 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 “upstream oil and gas operators”. 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 183 upstream oil and gas operators based in Houston, United States
See the full list, filter by size, metro and specialty, and access 46,225 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Upstream oil and gas operators based in Houston, United States at a glance
As of Sep 19, 2026Companies by employee count
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 183 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 “upstream oil and gas operators” 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 46,225 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 19, 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.
Upstream oil and gas operators by metro in the United States
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 “upstream oil and gas operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many upstream oil and gas operators are there based in Houston, United States?
RevenueBase identified 183 company matches for upstream oil and gas operators associated with Houston, United States 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?
Chevron 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 upstream oil and gas operators?
Houston leads the United States with 183 company records, followed by Dallas (58) and Oklahoma City (37).
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 46,225 professional contacts with verified work emails tracked across these 183 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 183 upstream oil and gas operators based in Houston, United States. Start with a free account, no credit card.
Download this list →Related lists
Upstream oil and gas operators by geography
- Upstream oil and gas operators based in Dallas, United States
- Upstream oil and gas operators based in Denver, United States
- Upstream oil and gas operators based in Fort Worth, United States
- Upstream oil and gas operators based in Midland, United States
- Upstream oil and gas operators based in Oklahoma City, United States
- Upstream oil and gas operators based in Brazil
- Upstream oil and gas operators based in Canada
- Upstream oil and gas operators based in India
- Upstream oil and gas operators based in Indonesia
- Upstream oil and gas operators based in Nigeria
- Upstream oil and gas operators based in the United Arab Emirates
- Upstream oil and gas operators based in the United Kingdom
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Upstream oil and gas operators based in Dallas, United States
- Upstream oil and gas operators based in Denver, United States
- Upstream oil and gas operators based in Fort Worth, United States
- Upstream oil and gas operators based in Midland, United States
- Upstream oil and gas operators based in Oklahoma City, United States
- Upstream oil and gas operators based in Brazil
Company intelligence · public preview
Top 25 upstream oil and gas operators based in Houston, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 183 matching company records for upstream oil and gas operators based in Houston, United States, with 166,326 tracked contacts and 46,225 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 upstream oil and gas operators based in Houston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Chevronchevron.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 60,138 contacts → |
“Our greatest resource is our people.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Halliburtonhalliburton.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 53,380 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Nabors Industriesnabors.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 5,865 contacts → |
“Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | W&t Offshore Inc. Nyse WTIwtoffshore.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 5,489 contacts → |
“We are an independent oil and natural gas acquisition, exploitation and exploration company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  EOG Resourceseogresources.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 4,346 contacts → |
“EOG Resources, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  NESRnesr.comHQ: Houston, United StatesReported employees: 5,001-10,000 | Houston, United States | 5,001-10,000 | Exact match | 3,683 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Murphy OIL Corporationmurphyoilcorp.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 3,514 contacts → |
“Murphy Oil Corporation is a global independent oil and natural gas exploration and production company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  KEY Energy Serviceskeyenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,755 contacts → |
“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Patterson-Utipatenergy.comHQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 2,317 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | OIL States Internationaloilstatesintl.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 2,215 contacts → |
“Oil States International, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Superior Energy Servicessuperiorenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,938 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Hilcorphilcorp.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,803 contacts → |
“Hilcorp Energy Company was founded in 1989 with the vision of being the premier independent energy company in America.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Core Laboratoriescorelab.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,500 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Forum Energy Technologiesf-e-t.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,262 contacts → |
“FET (Forum Energy Technologies, Inc.) is a global company, serving the crude oil, natural gas, and renewable energy industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Rowan Companiesvalaris.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,182 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Noble Energynblenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,155 contacts → |
“WE ARE NOBLE.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  C&j Energy Servicesnextierofs.comHQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 1,071 contacts → |
“NexTier is a leading provider of integrated completions focused on the most demanding land basins in the US.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Nine Energy Servicenineenergyservice.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 712 contacts → |
“With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Enervest, LTDenervest.netHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 424 contacts → |
“EnerVest is a top-tier, low-cost oil and natural gas operating company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Express Energy Serviceseeslp.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 379 contacts → |
“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Crescent Energycrescentenergyco.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 353 contacts → |
“Crescent is a differentiated energy company committed to delivering value through a disciplined, returns-driven growth through acquisition strategy and consistent return of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Citation OIL & GAS Corpcogc.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 337 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 |  AIR Drilling Associatesairdrilling.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 328 contacts → |
“ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Vaalco Energyvaalco.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 318 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  NCS Multistagencsmultistage.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 301 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 183 company matches
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Upstream oil and gas operators: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
183 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 183 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Upstream oil and gas operators by metro in the United States
Questions about this company list
What does Exact match mean for upstream oil and gas operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many upstream oil and gas operators did RevenueBase find based in Houston, United States?
The saved snapshot records 183 matching company records, 166,326 tracked contacts and 46,225 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Upstream oil and gas operators by geography
- Upstream oil and gas operators based in Dallas, United States
- Upstream oil and gas operators based in Denver, United States
- Upstream oil and gas operators based in Fort Worth, United States
- Upstream oil and gas operators based in Midland, United States
- Upstream oil and gas operators based in Oklahoma City, United States
- Upstream oil and gas operators based in Brazil
- Upstream oil and gas operators based in Canada
- Upstream oil and gas operators based in India
- Upstream oil and gas operators based in Indonesia
- Upstream oil and gas operators based in Nigeria
- Upstream oil and gas operators based in the United Arab Emirates
- Upstream oil and gas operators based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 upstream oil and gas operators based in Houston, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/upstream-oil-and-gas-operators/united-states/houston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Upstream oil and gas operators based in Dallas, United States
- Upstream oil and gas operators based in Denver, United States
- Upstream oil and gas operators based in Fort Worth, United States
- Upstream oil and gas operators based in Midland, United States
- Upstream oil and gas operators based in Oklahoma City, United States
- Upstream oil and gas operators based in Brazil
Company intelligence · public preview
Top 25 upstream oil and gas operators based in Houston, United States
RevenueBase records 183 matching company records for upstream oil and gas operators based in Houston, United States, with 166,326 tracked contacts and 46,225 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 upstream oil and gas operators based in Houston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Chevronchevron.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 60,138 contacts → |
“Our greatest resource is our people.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Halliburtonhalliburton.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 53,380 contacts → |
“We collaborate and engineer solutions to maximize asset value for our customers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Nabors Industriesnabors.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 5,865 contacts → |
“Nabors Industries is a leading provider of advanced technology for the energy industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | W&t Offshore Inc. Nyse WTIwtoffshore.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 5,489 contacts → |
“We are an independent oil and natural gas acquisition, exploitation and exploration company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | EOG Resourceseogresources.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 4,346 contacts → |
“EOG Resources, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NESRnesr.com HQ: Houston, United StatesReported employees: 5,001-10,000 | Houston, United States | 5,001-10,000 | Exact match | 3,683 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Murphy OIL Corporationmurphyoilcorp.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 3,514 contacts → |
“Murphy Oil Corporation is a global independent oil and natural gas exploration and production company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | KEY Energy Serviceskeyenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,755 contacts → |
“Headquartered in Houston, Texas, Key Energy Services provides a wide array of leading edge energy production solutions and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Patterson-Utipatenergy.com HQ: Houston, TX, United StatesReported employees: 10001+ | Houston, TX, United States | 10001+ | Exact match | 2,317 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | OIL States Internationaloilstatesintl.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 2,215 contacts → |
“Oil States International, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Superior Energy Servicessuperiorenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,938 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Hilcorphilcorp.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,803 contacts → |
“Hilcorp Energy Company was founded in 1989 with the vision of being the premier independent energy company in America.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Core Laboratoriescorelab.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,500 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Forum Energy Technologiesf-e-t.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,262 contacts → |
“FET (Forum Energy Technologies, Inc.) is a global company, serving the crude oil, natural gas, and renewable energy industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Rowan Companiesvalaris.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,182 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Noble Energynblenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,155 contacts → |
“WE ARE NOBLE.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | C&j Energy Servicesnextierofs.com HQ: Houston, TX, United StatesReported employees: 5,001-10,000 | Houston, TX, United States | 5,001-10,000 | Exact match | 1,071 contacts → |
“NexTier is a leading provider of integrated completions focused on the most demanding land basins in the US.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nine Energy Servicenineenergyservice.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 712 contacts → |
“With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Enervest, LTDenervest.net HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 424 contacts → |
“EnerVest is a top-tier, low-cost oil and natural gas operating company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Express Energy Serviceseeslp.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 379 contacts → |
“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Crescent Energycrescentenergyco.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 353 contacts → |
“Crescent is a differentiated energy company committed to delivering value through a disciplined, returns-driven growth through acquisition strategy and consistent return of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Citation OIL & GAS Corpcogc.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 337 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | AIR Drilling Associatesairdrilling.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 328 contacts → |
“ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Vaalco Energyvaalco.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 318 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | NCS Multistagencsmultistage.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 301 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 183 company matches
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Upstream oil and gas operators: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
183 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 183 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Upstream oil and gas operators by metro in the United States
Questions about this company list
What does Exact match mean for upstream oil and gas operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many upstream oil and gas operators did RevenueBase find based in Houston, United States?
The saved snapshot records 183 matching company records, 166,326 tracked contacts and 46,225 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 upstream oil and gas operators based in Houston, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/upstream-oil-and-gas-operators/united-states/houston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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