| # | Company | Employees |
|---|---|---|
| 1 |
Love's Travel Stopsloves.com
Family-owned company operating over 600 travel stops across 42 states, emphasizing clean facilities, friendly service, and strong core values. |
15,823 |
| 2 |
H&Phelmerichpayne.com
Provider of advanced drilling technologies and solutions enhancing productivity, reliability, safety, and efficiency in land, international, and offshore operations. |
11,576 |
| 3 |
Williamswilliams.com
Provides transport, storage, and delivery solutions for clean energy, operating critical infrastructure to support a low-carbon energy future. |
6,995 |
| 4 | 6,516 | |
| 5 |
Chesapeake Energychk.com
An Oklahoma City-based oil and gas company focused on responsibly developing leading positions in top US plays and aiming for net zero GHG emissions by 2035 |
2,567 |
| 6 |
ONE Gasjobs.onegas.com
A natural gas distribution company serving over 22 million customers in Kansas, Oklahoma, and Texas, with a focus on creating a respectful online community |
2,413 |
| 7 |
OGE Energy Corp.oge.com
Serving over 910,000 customers in Oklahoma and Arkansas, providing energy with focus on safety, innovation, and community improvement. |
1,892 |
| 8 |
T.D. Williamsontdwilliamson.com
The company provides innovative solutions for pipeline operators worldwide to maximize uptime, improve throughput, minimize risk, and address regulatory climate challenges |
1,872 |
| 9 |
Zeeco, Inc.zeeco.com
A global leader in combustion and environmental solutions for various industries, specializing in ultra-low emission burners, flaring systems, and waste incineration |
1,812 |
| 10 |
Continental Resourcesclr.com
Independent oil producer focused on exploration and production in major U.S. basins, driving American energy independence and market leadership. |
1,498 |
| 11 |
John Zinkjohnzink.com
Global leader in environmental solutions for various industries, specializing in engineered vapor and combustion systems with Smart Combustionโข technology for optimized performance and efficiency |
869 |
| 12 |
SandRidge Energysandridgeenergy.com
An oil and natural gas exploration and production entity focusing on high-return projects in the US Mid-Continent and Niobrara Shale regions |
819 |
| 13 |
Magellan Midstream Partnersmagellanlp.com
A publicly traded partnership transporting, storing, and distributing refined petroleum products and crude oil with a focus on safety, efficiency, and responsibility |
799 |
| 14 |
NGL Energy Partners LPnglenergypartners.com
A vertically integrated MLP in the midstream energy sector, providing transportation, storage, blending, and marketing services for crude oil, NGLs, refined products, and water solutions |
627 |
| 15 |
Cactus Drilling Cocactusdrlg.com
A leading domestic land drilling contractor in the US, providing skilled personnel and high-quality equipment to meet customer drilling needs safely and effectively |
567 |
| 16 |
Enable Midstream Partnersenablemidstream.com
Gathering, processing, transportation, and storage of oil and natural gas across the United States, focusing on midstream infrastructure. |
535 |
| 17 |
Unit Corporationunitcorp.com
Diversified energy company involved in oil and gas exploration, production, property acquisition, and onshore drilling in the Mid-Continent region Headquarters in Tulsa, OK |
451 |
| 18 |
Grand River Dam Authoritygrda.com
GRDA operates a diverse portfolio of electric generation assets, manages lake waters in Oklahoma, and delivers wholesale electricity to various customer classes in Northeast Oklahoma |
436 |
| 19 |
Page Not Active - H&P Technologieshpinc.com
A division of H&P, find us on LinkedIn under the handle @Helmerich-Payne for more information |
431 |
| 20 |
Ascent Resourcesascentresources.com
Leading independent energy company focused on acquiring, developing, and producing natural gas and oil in the Appalachian Basin, particularly Ohio Offering equal employment opportunities to all |
430 |
| 21 |
Matrix NACmatrixservicecompany.com
A subsidiary providing procurement, construction, maintenance, and repair services to North American energy and industrial markets with a focus on sustainability and ESG practices |
310 |
| 22 |
Canvas Energycanvasenergy.com
An independent oil and gas exploration company focusing on leasehold in the rich gas window of the Anadarko Basin, primarily targeting Meramec, Osage, and Woodford formations |
217 |
| 23 |
Access Midstream
Access Midstream was a company acquired by Williams in 2015, specializing in midstream services for the energy industry |
182 |
| 24 |
ACCESS MIDSTREAM PARTNERS L.Pwilliams.com
A North American energy infrastructure company and natural gas processor leading in the industry |
176 |
| 25 |
Rose Rock Midstreamsemgroupcorp.com
Specializing in crude oil gathering, transportation, storage, and marketing, this company operates in top resource plays in North America |
153 |
| 26 |
American Energy Partners, LPamericanenergypartners.com
A dynamic company in the American oil and gas industry, seeking top talent to lead the way in exploration and production |
88 |
| 27 |
MidCentralmidcentralenergy.com
An asset performance management company in the energy industry, emphasizing customer service, data transparency, technology, and innovation to maximize returns and optimize resources |
88 |
| 28 |
CP Energycpenergy.com
A privately owned midstream company providing crude oil marketing and transportation services in the Oklahoma and Texas Panhandle region |
85 |
| 29 |
Arrow Engine and Compression Companyarrowengine.com
A leading provider of natural gas engines, compressors, and production equipment, focused on reliability, exceptional customer service, and innovation |
72 |
| 30 |
R & R Pipelinerandrpipeline.net
A leading pipeline company serving the Oil and Gas industry with a strong focus on safety, compliance, community involvement, and efficiency |
60 |
| 31 |
Sweatt Constructionsweattconstruction.com
An oil and energy company based in Oklahoma City, specializing in construction services within the industry |
57 |
| 32 |
Nadel and Gussman, LLCnadelgussman.com
A multi-generation family-owned oil and gas production company with operations in multiple US states, focusing on ethical transactions and modern oil innovations |
55 |
| 33 |
Sanguine Gas Explorationsanguinegasexploration.com
A private energy company specializing in locating and developing oil and gas assets in Texas and Oklahoma |
44 |
| 34 |
PostRock Energy Corporationpstr.com
An energy corporation focused on acquiring, exploring, and producing crude oil and natural gas in Kansas, Oklahoma, and the Appalachian Basin |
40 |
| 35 |
Duncan Oil Properties, Inc.wdoil.com
Privately-held oil and gas exploration and production company with a long history, focusing on drilling opportunities and sustainable growth through conservative financial practices |
40 |
| 36 |
BRG Energy Inc.brgcorp.com
A privately held oil and gas company in Tulsa, Oklahoma, focused on low-risk drilling and acquiring producing properties in Oklahoma and Texas |
39 |
| 37 |
CORKEN - an IDEX Energy businesscorken.com
Global leader in industrial compressors, pumps, and accessories for liquefied gas transfer, air boosting, vapor recovery, with a strong commitment to customer service and innovation |
39 |
| 38 |
Mammoth Energy Servicesmammothenergy.com
An integrated oilfield service company specializing in growth-oriented operations, providing various services for exploration and development of North American onshore unconventional oil and gas reserves |
38 |
| 39 |
MidCentral Energymidcentralenergy.com
A company specializing in energy industry services, providing customer service, asset management, data transparency, technology, and innovation to optimize resources and reduce costs |
37 |
| 40 |
SISU Energy and Environmentalsisu-ee.com
A solutions-driven partner specializing in emissions reduction, retrofit optimization, field service, waste heat recovery, renewables, and distributed energy for sustainable projects |
35 |
| 41 |
Solar Power of Oklahomalinktr.ee
A leading renewable energy solutions company in Oklahoma providing custom solar options with a focus on integrity, quality service, and innovation |
33 |
| 42 |
Circle 9 Resources LLCcircle9llc.com
An Oklahoma City based energy company specializing in acquiring and developing oil and natural gas resources in East Central Oklahoma |
30 |
| 43 |
Novo Oil and Gas, LLCnovoog.com
A privately held oil and gas company based in Oklahoma City focused on creating value through innovative exploration in liquids-rich regions |
26 |
| 44 |
TSI Flow Productstsiflowproducts.com
A leading provider of innovative flow control equipment, known for exceptional customer service, with locations across the US and Canada |
23 |
| 45 |
White Star Petroleum, LLCwstr.com
A growing independent oil and natural gas exploration company based in Oklahoma City, focused on expanding and developing resources responsibly |
21 |
| 46 |
Spartan Energy Servicesspartanenergyservices.com
A leading provider of pipeline, facilities, maintenance, construction, and integrity solutions in 10 states, focused on hiring, cultivating talent, and family-oriented values |
21 |
| 47 |
EnerQuest Oil & Gas, LLCenerquest.net
A successful exploration and development company based in Oklahoma, with diverse oil and gas assets and a disciplined investment approach |
18 |
| 48 |
Whiptail Midstreamwhiptailmidstream.com
A full-service midstream provider in Tulsa, Oklahoma, offering gas gathering, NGL fractionation, crude and water storage, and transportation services |
16 |
| 49 |
Emergency Power Systems, Inc.epstulsa.com
Specializes in designing, installing, and providing full-service solutions for standby power systems, including sales, service, rentals, and fabrication services |
13 |
| 50 |
Elysianelysian.cc
Carbon management company providing end-to-end carbon capture and storage solutions for industrial and power facilities to transition to low-carbon products and meet ESG goals |
11 |
| 51 |
Cheyenne Petroleum Company Limited Partnershipcheypet.com
A trusted and responsible energy company pursuing growth opportunities with expertise in the energy field |
10 |
| 52 |
ViNtrol, Inc.vintrol.com
Manufacturer of flow control products for the oil and gas industry, offering a comprehensive range of valve solutions with customized engineering options |
9 |
| 53 |
PROTEGE ENERGY III LLCprotege-energy.com
Independent oil and gas exploration and production company with emphasis on US shale and conventional plays, prioritizing safety and environmental responsibility through partnerships |
9 |
| 54 |
Triple Crown Energytriplecrownenergy.com
An independent energy company based in Tulsa, Oklahoma, specializing in acquiring, owning, and developing oil and gas properties across the US |
8 |
| 55 | 6 | |
| 56 |
Lion Power Services, LLCmammothenergy.com
A leading provider in Electrical and Utility Infrastructure markets, focusing on building strong relationships, reputation, and exceptional outcomes for clients and employees #EnergyIndustry |
5 |
| 57 |
Impact Energy Operating, LLCimpactenergy.us
A privately held company operating in the oil and gas industry |
5 |
| 58 |
Green Elite LEDgreeneliteled.com
This company offers full-service energy efficiency solutions to save business owners time and money, from discovery to installation Contact for more information |
4 |
| 59 |
Lone Cypress Energy Services, LLC.lonecypressenergyservices.com
Independent energy company in Tulsa, OK specializing in traditional and renewable infrastructure development, EPC contracting, project management, and system operations for accessible and sustainable energy solutions |
4 |
| 60 |
Graceson Engineeringgracesons.com
Specializing in upstream and midstream energy assets, with expertise in diverse fields beyond energy sectors |
4 |
| 61 |
SENEX Energy Partners, LLC.senexep.com
A seasoned team pursues oil and gas opportunities worldwide by evaluating, drilling, and developing conventional and unconventional resources with solid geological and financial analysis |
2 |
| 62 |
Park Energy Servicesparkenergyservices.com
An oil and energy company located in Oklahoma City, specializing in providing energy services to the industry in the United States |
2 |
| 63 |
Skysill Power Servicesskysill.net
The company focuses on developing a modern electrical grid that ensures safe, reliable power delivery, integrates renewable energy, and maximizes resilience |
2 |
| 64 |
ONPOINT Manufacturing, LLConpointmanufacturing.energy
A full-service manufacturer of custom machinery for drilling and oil field services, providing sustainable solutions to meet industry demands |
1 |
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