| # | Company | Employees |
|---|---|---|
| 1 | 12,096 | |
| 2 |
Anadarko Petroleum Corporationoxy.com
An independent oil and natural gas exploration company with a global presence, focused on acquiring and developing vital energy resources |
3,332 |
| 3 |
ChampionXchampionx.com
A company with over a century of experience providing innovative solutions and global supply chain capabilities for the oil and gas industry |
3,260 |
| 4 |
Cudd Energy Servicescuddenergyservices.com
The company offers various technical oilfield services worldwide, including pressure pumping, hydraulic workover, coiled tubing, nitrogen services, and well control solutions |
1,277 |
| 5 |
BJ Energy Solutionsbjenergy.com
An industry leader in hydraulic fracturing solutions for upstream oil and gas companies, focusing on innovation, sustainability, and emission reductions |
1,249 |
| 6 |
Scientific Drillingscientificdrilling.com
Global provider of high accuracy wellbore placement and drilling solutions for Oil & Gas, Geothermal, Mining, and more industries Dedicated to superior customer experience |
1,218 |
| 7 |
Western Midstreamwesternmidstream.com
A midstream service provider delivering essential energy and inputs worldwide, focusing on reliability, cost efficiency, safety, and environmental protection |
986 |
| 8 |
HMT LLChmttank.com
Global leader in aboveground storage tank solutions, offering innovative products and services to optimize tank operations and improve efficiency, productivity, and profitability worldwide |
878 |
| 9 |
Kodiak Gas Serviceskodiakgas.com
A leading provider of natural gas contract compression services in the US, offering efficiency, reliability, innovation, and 24/7 technical support to customers |
639 |
| 10 |
Excelerate Energyexcelerateenergy.com
Pioneering provider of floating LNG solutions, offering integrated services throughout the LNG value chain for rapid, reliable delivery to global customers Headquarters in Texas |
611 |
| 11 |
Newfield Exploration
An independent energy company focused on domestic, liquids-rich unconventional resource plays in the US, delivering operational excellence, value, and innovation |
586 |
| 12 |
Evolution Well Servicesevolutionws.com
Innovative pressure pumping company using electrically powered hydraulic fracturing equipment for cost-effective, safe, and environmentally-friendly operations with precise control |
513 |
| 13 |
Refined Technologiesrefinedtechnologies.com
The company focuses on serving others first, delivering fast shutdowns globally with dedication to core behaviors and a mission focused on excellence |
447 |
| 14 |
APTIM (formerly CB&I Capital Services)aptim.com
This company provides services that support sustainable development and engineering solutions, focusing on environmental and infrastructure projects |
402 |
| 15 |
Newpark Resources, Incnewpark.com
The company offers drilling fluids products, services, and environmental solutions for wells globally, as well as provides matting solutions for various industries |
379 |
| 16 |
Chicago Bridge & Iron - Powercbi.com
A company in the power division based in Chicago, specializing in engineering and construction services for power generation projects |
346 |
| 17 |
Dover Precision Componentsdoverprecisioncomponents.com
Delivering precision components and solutions for rotating and reciprocating machinery worldwide, focusing on efficiency, reliability, and productivity in challenging environments |
320 |
| 18 |
Encompass Energy Services, LLCencompassservices.com
Encompass Energy Services is a leading survey, land/ROW, and GIS firm catering to energy, land management, and transportation/infrastructure industries with customized solutions |
313 |
| 19 |
Altitude Energy Partnersaltitude-ep.com
Specializing in Directional Drilling, the company offers cutting-edge technology and tailored solutions to meet the needs of their clients |
306 |
| 20 |
CSI Compressco LPkodiakgas.com
CSI Compressco LP provides compression services and equipment for natural gas and oil production, offering a fleet of compressor packages and aftermarket services globally |
272 |
| 21 |
Team Oil Toolsteamoiltools.com
Oil and gas experts providing innovative downhole solutions focused on precision and efficiency, tailored to clients' needs and exceeding expectations |
175 |
| 22 |
Eastern Energy Services, Inc.easternenergyservices.com
Industry leader in oilfield services, providing top equipment and experienced personnel for all operation phases Committed to exceeding customer expectations and industry demands |
165 |
| 23 |
Tablerocktablerock-us.com
A dynamic team offering innovative land acquisition, survey, inspection, and project management solutions in North America with a focus on efficiency and client satisfaction |
150 |
| 24 |
Arena Energy, LLCarenaenergy.com
An energy company in Texas focuses on lower-risk drilling opportunities in the Gulf, creating oil and gas reserves primarily through well drilling |
96 |
| 25 |
Ring Energy, Inc.ringenergy.com
Texas-based oil and gas exploration company focused on enhancing shareholder value through proven reserve growth and positive cash flow |
86 |
| 26 |
MP2 Energy LLC, A Shell Energy North America Subsidiarymp2energy.com
A full-service energy company offering solutions in power market, risk management, Demand Response services, and solar generation partnerships with top developers |
57 |
| 27 |
Riverside Energy Grouplinkedin.com
The company focuses on creating sustainable value through efficient and responsible management of oil and gas exploration and production assets in the United States |
46 |
| 28 |
Mission Well Services, LLCmissionws.com
A company offering production optimization solutions and services to the oil & gas industry, specializing in hydraulic fracturing and coiled tubing in the southern United States |
19 |
| 29 |
Woodland Midstream, LLCwoodlandmidstream.com
A growth-oriented midstream company that acquires, develops, operates, and optimizes natural gas and natural gas liquids infrastructure in Texas and neighboring states |
11 |
| 30 |
FracGeofracgeo.com
FracGeo offers Shale Management™ solutions for optimizing well performance in unconventional reservoirs through advanced hydraulic fracture modeling and well spacing optimization |
9 |
| 31 |
TopSail Energy, LPtopsailenergy.com
A midstream energy company based in Texas, focusing on acquiring, developing, marketing, and operating petroleum products processing and logistics assets in North America |
5 |
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
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The same list elsewhere in United States
- Oil and Gas companies in the United States 1,556
- Oil and Gas companies in Texas 836
- Oil and Gas companies in Oklahoma 93
- Oil and Gas companies in Louisiana 77
- Oil and Gas companies in Colorado 58
- Oil and Gas companies in New York State 41
- Oil and Gas companies in Pennsylvania 37
- Oil and Gas companies in California 36
- Oil and Gas companies in Florida 26
- Oil and Gas companies in Houston 440
- Oil and Gas companies in Dallas 48
- Oil and Gas companies in Oklahoma City 41
- Oil and Gas companies in Midland 40
- Oil and Gas companies in Tulsa 39
- Oil and Gas companies in Denver 37
- Oil and Gas companies in Fort Worth 32