Company lists · Data refreshed September 2026

Top 25 Oil and gas processing companies based in the United States

Name: Oil and gas processing companies 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 1,235 companies tracked

RevenueBase identified 1,235 oil and gas processing companies headquartered in the United States as of September 2026 and tracks 64,259 professional contacts across them, including 17,474 with verified work emails. Houston is the largest hub.

This list covers oil and gas processing companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

1,235Companies

64,259Contacts tracked

17,474Verified emails

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The 25 largest oil and gas processing companies based in the United States

Ranked by team size

Top 25 of 1,235 oil and gas processing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas processing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Marathon Petroleum Corporation	Indirect evidence	Findlay, OH, United StatesHQ checked Sep 17, 2026	10001+	14,238 contacts →
	Indirect evidence “Marathon Petroleum Corporation (MPC) is a leading, integrated, downstream and midstream energy company headquartered in Findlay, Ohio.” Source: RevenueBase Database · checked Sep 17, 2026
2	Hess Corporation	Strong evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	4,642 contacts →
	Strong evidence “Hess Corporation is a global independent energy company engaged in the exploration and production of crude oil and natural gas.” Source: RevenueBase Database · checked Sep 17, 2026
3	CITGO	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	4,396 contacts →
	Indirect evidence “CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand.” Source: RevenueBase Database · checked Sep 17, 2026
4	Flint Hills Resources	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,891 contacts →
	Indirect evidence “Flint Hills Resources is a leading refining company with operations primarily in the Midwest and Texas.” Source: RevenueBase Database · checked Sep 17, 2026
5	Motiva Enterprises LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,668 contacts →
	Indirect evidence “Headquartered in Houston, Texas, Motiva refines, distributes and markets petroleum products throughout the Americas.” Source: RevenueBase Database · checked Sep 17, 2026
6	OIL States International	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,215 contacts →
	Partial evidence “Oil States International, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
7	Delek US	Indirect evidence	Brentwood, TN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,297 contacts →
	Indirect evidence “Delek US is a diversified downstream energy company with assets in petroleum refining, asphalt, renewable fuels, and logistics.” Source: RevenueBase Database · checked Sep 17, 2026
8	Cudd Energy Services	Strong evidence	The Woodlands, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,285 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
9	Forum Energy Technologies	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,262 contacts →
	Strong evidence “FET (Forum Energy Technologies, Inc.) is a global company, serving the crude oil, natural gas, and renewable energy industries.” Source: RevenueBase Database · checked Sep 17, 2026
10	Ergon INC	Indirect evidence	Flowood, MS, United StatesHQ checked Sep 17, 2026	1,001-5,000	779 contacts →
	Indirect evidence “Family-owned and operated, the Ergon companies were brought together over 70 years ago in the petroleum industry's service sector.” Source: RevenueBase Database · checked Sep 17, 2026
11	Honeywell Sundyne	Strong evidence	Arvada, CO, United StatesHQ checked Sep 17, 2026	501-1,000	778 contacts →
	Strong evidence “Honeywell Sundyne manufactures highly reliable engineered pumps and compressors for global companies in upstream and midstream oil and gas production, refining, petrochemical…” Source: RevenueBase Database · checked Sep 17, 2026
12	Pioneer Energy Services	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	770 contacts →
	Indirect evidence “Pioneer Energy Services is now Patterson-UTI” Source: RevenueBase Database · checked Sep 17, 2026
13	Island Operating Company	Strong evidence	Scott, LA, United StatesHQ checked Sep 17, 2026	1,001-5,000	570 contacts →
	Strong evidence “Improving efficiency and reducing costs, all while meeting safety requirements, is the challenge faced by every operator in the oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
14	Enable Midstream Partners	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 17, 2026	1,001-5,000	506 contacts →
	Indirect evidence “Enable Midstream Partners was acquired by Energy Transfer on December 3, 2021.” Source: RevenueBase Database · checked Sep 17, 2026
15	Cetco Energy Services	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	499 contacts →
	Strong evidence “CETCO Energy Services (CETCO) specializes in treating complex fluids for offshore oil and gas operators.” Source: RevenueBase Database · checked Sep 17, 2026
16	Enervest, LTD	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	424 contacts →
	Strong evidence “EnerVest is a top-tier, low-cost oil and natural gas operating company.” Source: RevenueBase Database · checked Sep 17, 2026
17	Deep Well Services	Indirect evidence	Zelienople, PA, United StatesHQ checked Sep 17, 2026	501-1,000	384 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
18	Cooper Machinery Services	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	372 contacts →
	Strong evidence “Cooper Machinery Services provides natural gas compression equipment and services to customers globally in the Oil & Gas, Power, Transportation, and Marine sectors.” Source: RevenueBase Database · checked Sep 17, 2026
19	NCS Multistage	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	301 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
20	Nabors Drilling USA	Partial evidence	Pocola, OK, United StatesHQ checked Sep 17, 2026	201-500	295 contacts →
	Partial evidence “NABORS DRILLING USA is an oil & energy company based out of 1803 N GRAY ST, POCOLA, Oklahoma, United States.” Source: RevenueBase Database · checked Sep 17, 2026
21	Greene's Energy Group	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	285 contacts →
	Strong evidence “Greene’s Energy Group offers a range of support services and products to the oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
22	Crosby Energy Services	Indirect evidence	Cut Off, LA, United StatesHQ checked Sep 17, 2026	201-500	272 contacts →
	Indirect evidence “Founded as C&D Wireline in 1968, with C&D Production Specialist joining the business in 1993, today Crosby Energy Services is a certified Women’s Business Enterprise National…” Source: RevenueBase Database · checked Sep 17, 2026
23	Harvest Midstream Company	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	271 contacts →
	Indirect evidence “Harvest Midstream is a privately-held midstream company services provider headquartered in Houston, Texas with assets in Alaska, Louisiana, New Mexico, Ohio, Pennsylvania and…” Source: RevenueBase Database · checked Sep 17, 2026
24	Rpc, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	231 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Yellowjacket Oilfield Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	223 contacts →
	Indirect evidence “Yellowjacket Oilfield Services offers cost-effective solutions by leveraging state of the art equipment & technology along with superior personnel.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oil and gas processing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oil and gas processing companies.
Partial evidence: Its own public description names part of oil and gas processing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas processing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,235 oil and gas processing companies based in the United States

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Oil and gas processing companies based in the United States at a glance

As of Sep 17, 2026

27.2%Verified-email coverage

52.0Average contacts per company

11-50Median size (employees)

18.0%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

383

11-50

460

51-200

242

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 1,235 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oil and gas processing companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “oil and gas processing companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oil and gas processing companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among oil and gas processing companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 17,474 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Oil and gas processing companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oil and gas processing companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 1,235 oil and gas processing companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Marathon Petroleum Corporation, headquartered in Findlay, tops this list with the largest team on record.

Which city has the most oil and gas processing companies?

Houston leads with 222 headquartered companies, followed by Midland (48) and Odessa (31).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 17,474 verified decision-maker contacts tracked across these 1,235 companies.

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 Smart Search, 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.