The oil and gas well equipment installation industry focuses on providing essential services and products needed for efficient drilling and extraction operations. Companies in this sector develop specialized equipment such as pump systems, measurement installations, and installation services that optimize productivity and safety. As energy demands evolve, a growing emphasis on technological innovation and sustainability emerges in the industry. Additionally, advancements in automation and digitalization are shaping the future, making the sector increasingly dynamic and responsive to changing market conditions.


The companies featured in this list range in size from small firms to industry giants, with headquarters stretching across various countries, including Russia, the USA, and several Latin American nations. Founded between 1953 and 2011, these companies specialize in manufacturing, engineering, and installation services. This mix showcases significant global presence and innovation efforts that enhance operational efficiency within the oil and gas sector.


Read on to discover the top oil and gas well equipment installation companies.


Top 25 Oil And Gas Well Equipment Installation Companies


1. OZNA Company


OZNA Company, based in Ufa, Republic of Bashkortostan, Russia, has been a significant player in the oil and gas industry since its inception in 1953. The company specializes in the engineering and manufacturing of equipment and services that cater to the needs of oil and gas companies. Their offerings include measurement installations, oil preparation systems, and transportation solutions, all designed to enhance the efficiency and reliability of extraction and processing operations. OZNA's commitment to quality is evident in their focus on creating tailored solutions that meet the specific demands of their clients. With a workforce of over 1,000 employees, the company operates entirely within Russia, ensuring a localized approach to service delivery. Their extensive portfolio includes automated measurement systems, pumping stations, and various other equipment essential for oil and gas operations, underscoring their relevance in the sector.


2. Hilong Group of Companies

  • Website: hilonggroup.com
  • Ownership type: Private
  • Headquarters: Houston, Texas, United States (USA)
  • Employee distribution: Pakistan 49%, United Arab Emirates 9%, China 8%, Other 33%
  • Latest funding: $13.6M, January 2025
  • Founded year: 2002
  • Headcount: 1001-5000
  • LinkedIn: hilong-group-of-companies

Hilong Group of Companies, founded in 2002 and based in Houston, Texas, is a private entity with a workforce of over 1,000 employees. The company specializes in the oil and gas industry, offering a wide range of products and services that include oilfield equipment, pipeline technology, and marine engineering. Their clientele primarily consists of businesses in the oil and gas sector, which rely on Hilong's innovative solutions to enhance operational efficiency and ensure safety in challenging environments. Hilong's services extend to integrated technology solutions and project management, which are crucial for the installation of oil and gas well equipment. The company has also secured funding, indicating ongoing investment in its capabilities and growth.


3. Elkam

  • Website: elkam.ru
  • Ownership type: Private
  • Headquarters: Russia
  • Founded year: 1993
  • Headcount: 501-1000
  • LinkedIn: elkamperm

Elkam, founded in 1993 and based in Perm, Russia, is a private company that specializes in the manufacturing and servicing of oil extraction equipment. The company operates a full cycle of production, which includes everything from the procurement of raw materials to the final assembly and testing of equipment. Elkam is dedicated to improving the efficiency of oil extraction processes through innovative technologies and high-quality service. They have a significant production capacity, with modern facilities that include over 42 CNC machines and a total area exceeding 17,000 square meters. Elkam has repaired over one million units of oil extraction equipment and has built numerous repair shops across Russia. Their commitment to quality is reflected in their adherence to international standards such as ISO 9001 and API Q1. Elkam also engages in engineering services, providing tailored solutions to meet the specific needs of their clients in the oil extraction industry.


4. Huinoil SA

  • Website: huinoil.com.ar
  • Ownership type: Private
  • Headquarters: Buenos Aires, Buenos Aires, Argentina
  • Employee distribution: Argentina 100%
  • Founded year: 1999
  • Headcount: 501-1000
  • LinkedIn: huinoil-sa

Huinoil SA, founded in 1992, is a private oil and gas service company based in Buenos Aires, Argentina. With a workforce of approximately 463 employees, the company provides specialized operational and maintenance services tailored to the hydrocarbon production sector. Their service portfolio includes the operation and maintenance of oil and gas facilities, transportation of hydrocarbons, and the provision of technical professionals for both onshore and offshore installations. Huinoil operates across various provinces in Argentina, such as Mendoza, Neuquén, and Santa Cruz, as well as in Bolivia. The company emphasizes quality, safety, and environmental protection, adhering to ISO 9001:2015, ISO 14001:2015, and OHSAS 18001:2007 standards. Their strategic alliances, including partnerships with VANTAC for drone inspections, enhance their service capabilities, making them a relevant player in the oil and gas industry.


5. HITECH Egypt Oil & Gas Services


HITECH Egypt Oil & Gas Services, founded in 1998 and based in Cairo, Egypt, is a private company dedicated to serving the oil and gas industry. With a workforce of approximately 63 employees, HITECH specializes in providing a comprehensive array of products and services tailored to the needs of petroleum companies across the Middle East. Their offerings include equipment manufacturing, engineering services, and manpower supply, all aimed at enhancing efficiency and safety in oil extraction and processing. HITECH's commitment to quality is underscored by their ISO 9001 and ISO 18001 certifications, which reflect their adherence to international standards. The company has built a reputation for delivering high-quality solutions promptly, supported by a knowledgeable team with extensive industry experience. HITECH is also registered with key Egyptian oil and gas authorities, further solidifying its role as a trusted service provider in the sector.


6. Wetco

  • Website: wetco.co
  • Ownership type: Private
  • Headquarters: Tehran, Tehran, Iran
  • Employee distribution: Iran 71%, Bulgaria 14%, Cameroon 14%
  • Founded year: 2005
  • Headcount: 51-200
  • LinkedIn: wetco

Wetco, officially known as the Company of Wellhead Technology, is based in Tehran, Iran, and has been active in the oil and gas industry since its inception in 2005. The company specializes in the design, manufacturing, and installation of wellhead and Christmas tree equipment, which are vital for safe and efficient drilling operations. Wetco has a workforce of approximately 82 employees, with a significant portion of its team located in Iran, alongside smaller teams in Bulgaria and Cameroon. The company prides itself on producing equipment that meets stringent international standards, including API 6A and NACE, ensuring high quality and reliability. Wetco has also been recognized for its contributions to the industry, receiving various quality certifications and participating in significant oil and gas exhibitions. Their focus on local production and technology development highlights their commitment to enhancing the capabilities of the Iranian oil and gas sector.


7. Diavaz Oficial


Diavaz Oficial, founded in 1973, is a family-owned oil and gas service company based in Mexico. Initially starting as a diving company, it provided inspection, maintenance, and repair services for offshore oil structures. Over the years, Diavaz has expanded its operations to include a wide array of services across the oil value chain. These services range from offshore and terrestrial oil operations to gas distribution and integrity maintenance of oil assets. With a workforce of over 1,000 employees, the company prides itself on its deep knowledge of the energy sector and its use of advanced technologies. Diavaz has developed strategic alliances with both national and international partners, enhancing its operational capabilities. The company is recognized for its commitment to quality and safety, holding various certifications that reflect its adherence to industry standards. Diavaz operates several oil fields and has contracts with PEMEX, Mexico's state-owned petroleum company, further solidifying its role in the industry.


8. Universal Wellhead Services Holdings


Universal Wellhead Services Holdings, based in Corpus Christi, Texas, is a private equity-backed company that has been operational since 2010. The firm specializes in providing wellhead products and services tailored for the oil and gas industry. Their portfolio includes both new and remanufactured wellhead equipment, alongside comprehensive services such as installation, repair, and maintenance. Universal Wellhead Services prides itself on its in-house capabilities, allowing for efficient repairs and remanufacturing of wellhead components. They also emphasize safety and efficiency in their operations, which is crucial in the high-stakes environment of oil and gas extraction. The company serves a business-to-business clientele, ensuring that their solutions meet the rigorous demands of the industry. With a dedicated team of trained technicians, Universal Wellhead Services is positioned to support clients with reliable wellhead solutions.


9. Integra

  • Website: integra.ru
  • Ownership type: Private
  • Headquarters: Moscow, Moscow, Russia
  • Employee distribution: Russia 80%, Brazil 7%, Mexico 3%, Other 10%
  • Founded year: 2004
  • Headcount: 10001+
  • LinkedIn: integra_3

Integra, founded in 2004 and based in Moscow, Russia, is a private oilfield services company that specializes in providing a comprehensive range of services for the oil and gas sector. The company offers critical services such as drilling, cementing, and equipment rental, catering primarily to businesses in the oil and gas industry. Integra aims to enhance operational efficiency and safety in oilfield management, making it a key player in the sector. With a workforce that is predominantly located in Russia, the company also has a presence in Brazil, Mexico, the USA, and the UAE. Integra operates multiple subsidiaries, including Integra-Services and Integra-Drilling, which further solidify its capabilities in the oilfield services market. The company has not reported any recent funding, indicating a stable operational model without reliance on external investment.


10. International Oil Services (IOS)

  • Website: ios-me.com
  • Ownership type: Private
  • Headquarters: Cairo, Cairo Governorate, Egypt
  • Employee distribution: Egypt 79%, United Arab Emirates 11%, Iraq 11%
  • Founded year: 2002
  • Headcount: 201-500
  • LinkedIn: international-oil-services-ios

International Oil Services (IOS) is a private company based in Cairo, Egypt, founded in 2002. It specializes in manufacturing and providing services tailored to the oil and gas industry. IOS offers a wide range of products, including pressure vessels, storage tanks, and various oilfield equipment. Their services extend to technical consultancy, design and feasibility studies, installation and commissioning of liquid mud plants and bulk plants, as well as maintenance and refurbishment of existing facilities. The company is also involved in the supply of drilling and workover rigs, solids control equipment, and waste management solutions. IOS operates primarily in the MENA region, with a strong presence in Egypt, the UAE, and Iraq. They are recognized as an approved supplier by major international oil and gas companies, which underscores their credibility in the market. IOS is committed to understanding and meeting the unique requirements of their clients, ensuring operational efficiency and safety in their projects.


11. Oilfield Technical Services


Oilfield Technical Services, founded in 2005 by Dustin Smith, is based in Oklahoma City, Oklahoma. The company specializes in providing electrical services for drilling rigs and specialized oilfield equipment. With a workforce of around 60 technicians, OTS has expanded its operations beyond Oklahoma City to include divisions in Elk City, Oklahoma, Washington, Pennsylvania, and Dickinson, North Dakota. Their expertise covers a range of electrical technologies, including Amphion Integrated Control Systems and various control modules. OTS has built a robust customer base, serving prominent companies such as Precision Drilling, Pioneer, and Chevron, among others. This involvement with major players in the industry underscores their capability and relevance in the oil and gas sector.


12. Shengji Group

  • Website: sjpec.com
  • Ownership type: Private
  • Headquarters: Dongying, Shandong, China
  • Employee distribution: China 77%, Ecuador 7%, Peru 7%, Other 9%
  • Founded year: 1964
  • Headcount: 1001-5000
  • LinkedIn: shengji-group

Shengji Group, also known as Shengji Petro, is a private company based in Dongying, Shandong, China, founded in 1964. With a workforce of approximately 1,001 to 5,000 employees, the company specializes in supplying oil and gas equipment, particularly in drilling and recovery solutions. Shengji Petro offers a comprehensive range of products, including conventional drilling equipment, thermal recovery systems, and anti-corrosion solutions. They cater primarily to major oil and gas companies, addressing operational challenges through engineering design and maintenance services. The company has built a solid reputation over its decades of operation, collaborating with renowned enterprises such as Shell, Chevron, and Sinopec. Their commitment to quality is reflected in their certifications and the establishment of a national laboratory, which supports their research and development efforts. Shengji Petro has also set up multiple subsidiaries and offices globally, enhancing their service network and operational reach.


13. V.A. Tools S.A.S.

  • Website: vatools.com.co
  • Ownership type: Private
  • Headquarters: Puerto Salgar, Bogota, Colombia
  • Employee distribution: Colombia 100%
  • Founded year: 1996
  • Headcount: 51-200
  • LinkedIn: vatools

V.A. Tools S.A.S., founded in 1996 and based in Puerto Salgar, Bogota, Colombia, is a private company dedicated to providing engineering solutions and products for the oil and gas industry. With a workforce of approximately 56 employees, V.A. Tools has established itself as a significant player in the sector. The company offers a wide range of products, including drilling and completion equipment, API 6A wellhead and tree equipment, and API 16A drill-through equipment. They also provide essential services such as inspection and testing, maintenance, and installation of wellhead and tree equipment. V.A. Tools prides itself on its innovative approach, utilizing advanced technologies and CNC machining to enhance operational efficiency. Their commitment to quality is reflected in their certifications and adherence to industry standards, ensuring that they meet the rigorous demands of their clients in the oil and gas sector.


14. Steel Hawk Engineering Sdn Bhd


Steel Hawk Engineering Sdn Bhd, incorporated in 2012, is a Malaysian company that provides engineering and technical support services primarily for the oil and gas industry. With a workforce of around 76 employees, the company has successfully completed over 70 projects, amassing a total value exceeding RM100 million. Their services include engineering, procurement, construction, and commissioning (EPCC) for chemical injection skids, as well as the installation, maintenance, and supply of various oilfield equipment such as pig trap systems and fire-rated doors. Steel Hawk is recognized for its commitment to quality and safety, holding ISO 9001:2015 and ISO 45001:2018 certifications. The company has also received multiple awards from PETRONAS, including the Outstanding Vendor Award, which underscores its reputation in the industry. Steel Hawk is actively expanding its operations beyond Malaysia, indicating a growth trajectory in the oil and gas sector.


15. Dostyk West Group

  • Website: dostykwest.com
  • Ownership type: Private
  • Headquarters: Atyrau, Atyrau, Kazakhstan
  • Employee distribution: Kazakhstan 100%
  • Founded year: 2011
  • Headcount: 51-200
  • LinkedIn: dostyk-west-group

Dostyk West Group, established in 2011, is an oil service company located in Atyrau, Kazakhstan. The firm specializes in the oil and gas sector, providing a range of services that include the maintenance, automation, and installation of gas compressor units and oilfield equipment. With a workforce of approximately 51-200 employees, the company has built a solid foundation in the industry over the past decade. Their services are tailored to meet the needs of upstream oil and gas companies, focusing on improving efficiency and reliability in operations. Dostyk West Group has worked on various projects, providing technical support and ensuring the reliable operation of equipment for notable clients such as Emba Munai Gas and Atyrau Oil Refinery. Their commitment to quality and adherence to international standards further solidifies their position in the oil and gas service market.


16. AOS Orwell Limited

  • Website: aosorwell.com
  • Ownership type: Private
  • Headquarters: Port Harcourt, Rivers, Nigeria
  • Employee distribution: Nigeria 93%, India 3%, Ghana 2%, Other 2%
  • Founded year: 1981
  • Headcount: 1001-5000
  • LinkedIn: aosorwell

AOS Orwell Limited, founded in 1981 and based in Port Harcourt, Rivers State, Nigeria, is an oilfield services company that specializes in delivering comprehensive solutions for the oil and gas industry. With a workforce of over 500 employees, the company focuses on wellbore construction, process automation, and operations and maintenance services. AOS Orwell is recognized for its commitment to enhancing operational efficiency and safety for its clients in the oil and gas sector. The company has built a reputation for providing integrated, end-to-end services that cover production, drilling, workover, and abandonment. Their expertise extends to oilfield tubular and accessory manufacturing and repair, showcasing their capability to support various operational needs. AOS Orwell is also noted for its investment in local content, which strengthens its position as a dependable partner in the Nigerian oil and gas market.


17. Blue Manta, an OEG Offshore company

  • Website: bluemanta.com
  • Ownership type: Private
  • Headquarters: Aberdeen, Scotland, United Kingdom (UK)
  • Employee distribution: United Kingdom (UK) 78%, Australia 9%, United Arab Emirates 6%, Other 6%
  • Founded year: 1998
  • Headcount: 11-50
  • LinkedIn: blue-manta-international-limited

Blue Manta International Limited, a subsidiary of OEG Offshore, is based in Aberdeen, Scotland, and has been operational since 1998. The company specializes in providing a range of oilfield products and services tailored for the oil and gas industry. Their offerings include high-pressure equipment, spooling units, offshore containers, and completion kits, primarily available on a rental basis. Blue Manta serves clients who require reliable and certified solutions for their extraction and operational needs. The company is dedicated to maintaining high safety and quality standards, ensuring that all products meet relevant industry certifications. With a workforce of around 32 employees, Blue Manta operates not only in the UK but also has a presence in Australia, the UAE, and Norway, reflecting its international reach within the sector.


18. Savanna Energy Services Corp.


Savanna Energy Services Corp., founded in 2001 and based in Calgary, Alberta, is an energy services company that specializes in drilling and well servicing for the oil and gas industry. With a workforce of over 1,000 employees, Savanna provides advanced drilling technologies and maintains a fleet of modern rigs designed to support resource extraction. Their services are primarily aimed at oil and gas companies that require efficient and reliable operations. Savanna's commitment to safety and innovation is evident in their use of state-of-the-art equipment and technology, which enhances operational efficiency and safety standards. The company operates in key markets across Canada, the USA, and Australia, positioning itself as a significant player in the energy services sector.


19. Dril-Quip

  • Website: innovex-inc.com
  • Ownership type: Private Equity
  • Headquarters: Houston, Texas, United States (USA)
  • Employee distribution: United States (USA) 34%, Brazil 24%, United Kingdom (UK) 15%, Other 26%
  • Latest funding: January 2017
  • Founded year: 1981
  • Headcount: 1001-5000
  • LinkedIn: dril-quip

Dril-Quip, now part of Innovex, is an energy solutions provider based in Houston, Texas, specializing in products and services tailored for the oil and gas industry. Founded in 1981, the company has built a reputation for its innovative technologies that enhance drilling efficiency and safety. Dril-Quip offers a comprehensive range of equipment for well construction, completion, and production, addressing the operational needs of energy sector businesses. Their product lineup includes wellhead systems, drilling tools, and various production solutions, all designed to support the lifecycle of oil and gas wells. With a workforce of approximately 1,825 employees, Dril-Quip operates not only in the United States but also has a significant presence in Brazil, the United Kingdom, Mexico, and Singapore, reflecting its global reach in the industry.


20. Varel Energy Solutions

  • Website: varel.com
  • Ownership type: Private Equity
  • Headquarters: Houston, Texas, United States (USA)
  • Employee distribution: Mexico 27%, United States (USA) 20%, India 18%, Other 36%
  • Latest funding: October 2019
  • Founded year: 1947
  • Headcount: 1001-5000
  • LinkedIn: varelenergysolution

Varel Energy Solutions, founded in 1947 and based in Houston, Texas, is a private equity-backed company that provides energy solutions tailored for the oil and gas industry. The firm specializes in drilling, well construction, and completion technologies, offering a comprehensive range of products such as PDC drill bits, roller cone drill bits, casing solutions, and various completion tools. Varel aims to enhance operational efficiency and reduce costs for its clients through innovative and reliable products. With a significant presence in multiple countries, including Mexico, India, and Saudi Arabia, Varel has established itself as a key player in the global energy market. The company is committed to sustainability and customer satisfaction, as reflected in their high customer satisfaction ratings in 2022. Varel's strategic focus on manufacturing excellence and problem-solving capabilities further solidifies its role in the well construction and completion sectors of the oil and gas industry.


21. Kerui Petroleum

  • Website: keruigroup.com
  • Ownership type: Private
  • Headquarters: Dongying, Shandong, China
  • Employee distribution: China 47%, Colombia 5%, Indonesia 5%, Other 43%
  • Founded year: 2001
  • Headcount: 5001-10000
  • LinkedIn: shandong-kerui

Kerui Petroleum, founded in 2001 and based in Dongying, Shandong, China, is a private company that specializes in the manufacturing of oil and gas equipment and the provision of engineering services. With a workforce of approximately 5,000 employees, Kerui has established itself as a significant player in the energy sector. The company focuses on high-end equipment for energy extraction, offering a wide array of products including drilling rigs, gas compression equipment, and nitrogen injection systems. Kerui operates a global marketing network that spans over 80 countries, emphasizing efficiency and sustainability in energy production. The company has invested in research and development, maintaining multiple technology centers to support its innovative solutions. Kerui's commitment to quality and service is reflected in its extensive customer base and its participation in major industry events, showcasing its products and technological advancements.


22. Corporacion de Energia MEXOIL SAPI de CV


Corporacion de Energia MEXOIL SAPI de CV, founded in 2008 and based in Villahermosa, Tabasco, Mexico, is a private company dedicated to the energy sector. It specializes in drilling and well repair services, providing comprehensive solutions for oil and gas extraction. MEXOIL operates a fleet of 13 rigs with varying capacities, including 3,000 HP and 2,000 HP equipment, which are essential for drilling operations. The company also offers equipment leasing and a range of specialized drilling services, such as casing running and directional drilling. MEXOIL is committed to safety, health, and environmental protection, maintaining high standards and certifications in quality management. Their primary clientele consists of businesses in the oil and gas industry, who rely on MEXOIL's expertise to enhance production and maintain operational efficiency. The company prides itself on its Mexican ownership and its role in supporting the development of the national energy sector.


23. Novomet

  • Website: novometgroup.com
  • Ownership type: Private
  • Headquarters: Dubai, Dubai, United Arab Emirates (UAE)
  • Employee distribution: Iraq 19%, Argentina 14%, Egypt 13%, Other 55%
  • Founded year: 1991
  • Headcount: 5001-10000
  • LinkedIn: novomet

Novomet is an oilfield services company based in Dubai, UAE, founded in 1991. With a workforce of over 6,000 employees, the company specializes in artificial lift and geothermal technologies, providing a range of products and services aimed at enhancing hydrocarbon recovery. Their offerings include electrical submersible pumps, well completion solutions, and various artificial lift services. Novomet is dedicated to helping oil and gas companies reduce production costs while improving operational efficiency. The company operates in multiple countries, including Iraq, Argentina, and Egypt, showcasing its international reach. Novomet's focus on innovation is evident in its development of advanced technologies that aim to optimize production across all phases of a well's life, making it a key partner for businesses in the energy sector.


24. TSC Group Holdings Limited (TSC)

  • Website: t-s-c.com
  • Ownership type: Private
  • Headquarters: Houston, Texas, United States (USA)
  • Founded year: 2001
  • Headcount: 1001-5000
  • LinkedIn: tsc-offshore-group-ltd

TSC Group Holdings Limited (TSC) is an energy solutions provider based in Houston, Texas, established in 2001. The company specializes in the oil and gas drilling industry, focusing on the manufacture of high-end equipment and the provision of integrated solutions for both onshore and offshore drilling operations. TSC serves a wide range of clients in the drilling sector, offering advanced technology and maintenance services aimed at enhancing operational efficiency and safety. With a workforce of over 1,000 employees and a network of global subsidiaries, TSC has established itself as a significant player in the industry. The company is involved in various facets of drilling, including rig integrated solutions, maintenance, and the supply of drilling expendables. TSC's commitment to innovation and quality positions it as a reliable partner for businesses in the oil and gas sector.


25. Texas Fabco Solutions

  • Website: texasfabco.com
  • Ownership type: Private
  • Headquarters: Round Mountain, Texas, United States (USA)
  • Founded year: 2007
  • Headcount: 51-200
  • LinkedIn: texasfabco

Texas Fabco Solutions, based in Round Mountain, Texas, is a private company established in 2007. It specializes in the fabrication and installation of oil and gas production equipment, catering to the specific needs of clients in the industry. The company offers a wide array of custom-made products, including various skid units, H2S contactors, heater treater units, and oil metering units, among others. Texas Fabco is dedicated to providing comprehensive engineering services, ensuring that all products meet ASME code and client specifications. Their operational model emphasizes vertical integration, supporting clients from the initial sales phase through to installation and ongoing support. This commitment to customer service and quality has helped Texas Fabco build a solid reputation in the oil and gas sector, making them a reliable partner for various projects.



Oil And Gas Well Equipment Installation Insights: Key Companies


CompanyHeadquarterSizeFoundedOwnership
OZNA CompanyUfa, Republic Of Bashkortostan, Russia1001-50001953Private
Hilong Group of CompaniesHouston, Texas, United States (USA)1001-50002002Private
ElkamRussia501-10001993Private
Huinoil SABuenos Aires, Buenos Aires, Argentina501-10001999Private
HITECH Egypt Oil & Gas ServicesCairo, Cairo Governorate, Egypt51-2001998Private
WetcoTehran, Tehran, Iran51-2002005Private
Diavaz OficialMexico1001-50001973Family Owned
Universal Wellhead Services HoldingsCorpus Christi, Texas, United States (USA)51-2002010Private Equity
IntegraMoscow, Moscow, Russia10001+2004Private
International Oil Services (IOS)Cairo, Cairo Governorate, Egypt201-5002002Private
Oilfield Technical ServicesOklahoma City, Oklahoma, United States (USA)51-2002005Private
Shengji GroupDongying, Shandong, China1001-50001964Private
V.A. Tools S.A.S.Puerto Salgar, Bogota, Colombia51-2001996Private
Steel Hawk Engineering Sdn BhdPetaling Jaya, Kuala Lumpur, Malaysia51-2002004Private
Dostyk West GroupAtyrau, Atyrau, Kazakhstan51-2002011Private
AOS Orwell LimitedPort Harcourt, Rivers, Nigeria1001-50001981Private
Blue Manta, an OEG Offshore companyAberdeen, Scotland, United Kingdom (UK)11-501998Private
Savanna Energy Services Corp.Calgary, Alberta, Canada1001-50002001Corporate
Dril-QuipHouston, Texas, United States (USA)1001-50001981Private Equity
Varel Energy SolutionsHouston, Texas, United States (USA)1001-50001947Private Equity
Kerui PetroleumDongying, Shandong, China5001-100002001Private
Corporacion de Energia MEXOIL SAPI de CVVillahermosa, Tabasco, Mexico501-10002008Private
NovometDubai, Dubai, United Arab Emirates (UAE)5001-100001991Private
TSC Group Holdings Limited (TSC)Houston, Texas, United States (USA)1001-50002001Private
Texas Fabco SolutionsRound Mountain, Texas, United States (USA)51-2002007Private


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