Company lists · Data refreshed September 2026
Top 25 Mud engineering service companies based in the United States
RevenueBase identified 265 mud engineering service companies headquartered in the United States as of September 2026 and tracks 6,360 professional contacts across them, including 1,603 with verified work emails. Houston is the largest hub.
This list covers mud engineering service 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.
The 25 largest mud engineering service companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,244 contacts → | ||||
Indirect evidence “Newpark Fluids Systems is the world’s leading pure-play oil & gas and geothermal fluid solutions provider.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 361 contacts → | ||||
Indirect evidence “AES Drilling Fluids is prepared to successfully deliver on any challenging project from the well site to the customer's office.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 291 contacts → | ||||
Indirect evidence “LEAM Drilling Systems, Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 196 contacts → | ||||
Indirect evidence “BOS Solutions (BOS) is a full service provider of solutions for drilling fluids treatment and recovery.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 178 contacts → | ||||
Indirect evidence “Diversified collaborates with our business partners to lower finding and development costs, decrease the risk profile, increase reserves, and to improve capital efficiencies and…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 151 contacts → | ||||
Indirect evidence “Now hiring in all 8 districts.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 134 contacts → | ||||
Indirect evidence “Nomac Drilling is now Patterson-UTI.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 103 contacts → | ||||
Indirect evidence “Newsco is a global Directional Drilling and MWD service company, recognized internationally for our quality tools, committed service and for providing customized innovative…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 91 contacts → | ||||
Partial evidence “Stratagraph is a pioneer in the mud logging industry.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 91 contacts → | ||||
Partial evidence “Plaster & Wald Consulting Corp has provided engineering and consulting services to the oil & gas industry since 1997.Our supervisors provide technical expertise in well planning…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 87 contacts → | ||||
Indirect evidence “Upstream International provides drilling, completions/work-over, directional, MWD, safety, fluids and MPD professionals to the oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 85 contacts → | ||||
Indirect evidence “K&M Technology Group was founded in 1988 and has been involved in extended reach and horizontal drilling since its inception.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 83 contacts → | ||||
Indirect evidence “Valence Drilling Fluids, LLC began operations on October 1, 2017 in the Mid-Continent.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 77 contacts → | ||||
Partial evidence “Southwest Oilfield Products Inc, is a premier oil and gas equipment manufacturer providing innovative mud and well pump solutions to the world's leading oil & gas exploration and…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 76 contacts → | ||||
Indirect evidence “March 21, 2023, marked an important milestone for Stokes & Spiehler.a half century serving the oil & gas industry!” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 67 contacts → | ||||
Indirect evidence “Providing premier drilling fluids products to our customers supported by quality service and technical expertise.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 67 contacts → | ||||
Indirect evidence “Tony Farish founded the company in 1980, and was joined the next year by his brother, Ronnie.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 65 contacts → | ||||
Partial evidence “GEO Drilling Fluids Mission is to provide the most cost effective source for drilling fluids and engineering applications in each of its operating areas.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 59 contacts → | ||||
Indirect evidence “Terra Guidance provides geological analysis remotely, onsite, and in-house.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 57 contacts → | ||||
Indirect evidence “We provide drilling fluids and solids separation services, including dewatering, desludging, and water remediation to the environmental and energy industries across the United…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 57 contacts → | ||||
Indirect evidence “At DrilTech our goal is simple; to provide the most reliable Directional services while providing the best value for the products and services we offer.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 44 contacts → | ||||
Indirect evidence “Taktikal Directional believes in offering only the best.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 42 contacts → | ||||
Indirect evidence “Serving the oil industry since 1989, McAda Drilling Fluids is a private, family-owned and operated Texas company where a firm handshake means more than words.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 41 contacts → | ||||
Partial evidence “Genesis Fluids LLC provides value-added engineering, services, and technology for drilling and completions operations that consistently exceeds our customer’s expectations.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 36 contacts → | ||||
Partial evidence “Tejas Research & Engineering designs, manufactures, and tests ultra-reliable, deepwater and HPHT Subsurface Safety Valve Technologies that assure operators have the means to…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
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: mud engineering service 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 mud engineering service companies.
- Partial evidence
- Its own public description names part of mud engineering service companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name mud engineering service 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 265 mud engineering service companies based in the United States
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Mud engineering service companies based in the United States at a glance
As of Sep 17, 2026Companies by employee count
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 265 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 mud engineering service 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 “mud engineering service 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 mud engineering service 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 mud engineering service 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, 1,603 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.
Mud engineering service companies by metro
- Mud engineering service companies in Houston48
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 mud engineering service 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 mud engineering service companies are there based in the United States?
RevenueBase identified 265 mud engineering service 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?
Newpark, headquartered in Katy, tops this list with the largest team on record.
Which city has the most mud engineering service companies?
Houston leads with 48 headquartered companies, followed by Midland (20) and Oklahoma City (9).
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 1,603 verified decision-maker contacts tracked across these 265 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.
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