Company lists · Data refreshed September 2026

Top 25 Oil and gas operators based in the United States

Name: Oil and gas operators based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,050 companies tracked

RevenueBase identified 1,050 company matches for oil and gas operators associated with the United States as of September 2026 and tracks 157,944 professional contacts across them, including 42,104 with verified work emails. Houston is the largest hub.

This list covers company matches for oil and gas operators 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 September 17, 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 Sep 17, 2026 How this list was built

1,050Companies

157,944Contacts tracked

42,104Verified emails

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The 25 largest oil and gas operators based in the United States

Ranked by team size

Top 25 of 1,050 company matches for oil and gas operators based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Chevron	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	10001+	60,138 contacts →
	Exact match “Our greatest resource is our people.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	OXY	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	10001+	16,245 contacts →
	Exact match “Oxy is an international energy company that produces, markets and transports oil and natural gas to maximize value and provide resources fundamental to life.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Conocophillips	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 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 17, 2026 · View company records in RevenueBase
4	Phillips 66	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	10001+	11,576 contacts →
	Exact match “As a leading integrated downstream energy provider, we power the operations that keep life moving forward.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Anadarko Petroleum Corporation	Exact match	The Woodlands, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	3,460 contacts →
	Exact match “Anadarko is among the world’s largest independent oil and natural gas exploration and production companies, with corporate offices in The Woodlands, Texas.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Chesapeake Energy	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,954 contacts →
	Exact match “Headquartered in Oklahoma City, Chesapeake Energy Corporation is powered by dedicated and innovative employees who are focused on discovering and responsibly developing our…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	OIL States International	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	5,001-10,000	2,215 contacts →
	Exact match “Oil States International, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	SM Energy Company	Exact match	Denver, CO, United StatesHQ recorded Sep 17, 2026	501-1,000	2,176 contacts →
	Exact match “SM Energy Company is an independent energy company focused on the exploration, exploitation, development, acquisition, and production of natural gas and crude oil in the United…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Southwestern Energy	Exact match	Spring, TX, United StatesHQ recorded Sep 17, 2026	501-1,000	1,396 contacts →
	Exact match “We are energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Halliburton Energy Services	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	10001+	1,379 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 · Sep 17, 2026 · View company records in RevenueBase
11	Delek US	Exact match	Brentwood, TN, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,297 contacts →
	Exact match “Delek US is a diversified downstream energy company with assets in petroleum refining, asphalt, renewable fuels, and logistics.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Cudd Energy Services	Exact match	The Woodlands, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,285 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 · Sep 17, 2026 · View company records in RevenueBase
13	Forum Energy Technologies	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	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 17, 2026 · View company records in RevenueBase
14	Noble Energy	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,155 contacts →
	Exact match “WE ARE NOBLE.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Coterra Energy	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	501-1,000	1,034 contacts →
	Exact match “As of May 7, 2026, Coterra has officially completed its merger with Devon Energy, marking an exciting new chapter for our organization.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	KLX Energy Services	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	857 contacts →
	Exact match “KLX Energy Services provides more than 100 mission-critical oilfield services, tools, technologies and equipment to some of the industry’s leading operators.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Pioneer Energy Services	Exact match	San Antonio, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	770 contacts →
	Exact match “Pioneer Energy Services is now Patterson-UTI” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Aera Energy LLC	Exact match	Bakersfield, CA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	606 contacts →
	Exact match “As a California company, Aera holds the values of Californians: we strive to innovate, we celebrate productivity, and advocate for the preservation of our beautiful state.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Island Operating Company	Exact match	Scott, LA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	570 contacts →
	Exact match “Improving efficiency and reducing costs, all while meeting safety requirements, is the challenge faced by every operator in the oil and gas industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Merit Energy Company	Exact match	Dallas, TX, United StatesHQ recorded Sep 17, 2026	501-1,000	527 contacts →
	Exact match “Merit is one of the largest private oil and gas operators in the United States and has served as a direct energy investment for institutional investors and family offices for more…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Unit Corporation	Exact match	Tulsa, OK, United StatesHQ recorded Sep 17, 2026	51-200	484 contacts →
	Exact match “Unit Corporation is a Tulsa-based publicly held energy company engaged through its subsidiary, Unit Petroleum Company, in the exploration for and production of oil and natural…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Enervest, LTD	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	201-500	424 contacts →
	Exact match “EnerVest is a top-tier, low-cost oil and natural gas operating company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Vital Energy	Exact match	Tulsa, OK, United StatesHQ recorded Sep 17, 2026	201-500	419 contacts →
	Exact match “Vital Energy is committed to energizing human potential.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Deep Well Services	Exact match	Zelienople, PA, United StatesHQ recorded Sep 17, 2026	501-1,000	384 contacts →
	Exact match “Established in 2008, Deep Well Services (DWS) is an oilfield services company specializing in the most complex and difficult types of well work utilizing hydraulic completion…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Exco Resources, INC	Exact match	Dallas, TX, United StatesHQ recorded Sep 17, 2026	51-200	377 contacts →
	Exact match “EXCO Resources is an oil and natural gas company engaged in the acquisition, development and exploitation of onshore North American oil and natural gas properties.” Recorded in the RevenueBase company graph · Sep 17, 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 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 1,050 oil and gas operators based in the United States

See the full list, filter by size, metro and specialty, and access 42,104 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas operators based in the United States at a glance

As of Sep 17, 2026

26.7%Verified-email coverage

150.4Average contacts per company

11-50Median size (employees)

13.6%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

370

11-50

380

51-200

181

201-500

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 1,050 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 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 42,104 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 17, 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 and gas operators 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 and gas operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas operators are there based in the United States?

RevenueBase identified 1,050 company matches for oil and gas operators associated with the 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 has the most oil and gas operators?

Houston leads with 143 company records, followed by Midland (49) and Dallas (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 42,104 professional contacts with verified work emails tracked across these 1,050 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 17, 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.