California's oilfield services sector plays a pivotal role in supporting the state's extensive oil and gas operations. This industry comprises companies that deliver specialized services, ranging from well drilling and cementing to equipment rentals and environmental management. The rise of advanced technology and a focus on sustainable practices are making the industry increasingly competitive. As global energy markets evolve, California's companies are adapting their services while addressing both economic and ecological challenges. This sector continues to attract investment, aligning with the growing emphasis on energy efficiency and innovative methodologies that aim for less environmental impact.

The companies listed here vary greatly in size and specialization, with headquarter locations primarily in Bakersfield, Strathmore, and Ventura. Founded between the late 1960s and the mid-2000s, these firms operate in areas such as oil recovery, well servicing, and environmental solutions. Employing between 11 to over 1,000 staff, they are dedicated to addressing the needs of oil producers and industrial clients, making significant contributions to California's oilfield services landscape.

Continue reading to discover more about California's top oilfield services companies.

Top 21 Oilfield Services Companies in California

1. TRB Oilfield Services, Inc.

• Website: trb-oil.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2005
• Headcount: 51-200
• LinkedIn: trb-oilfield-services-inc.

TRB Oilfield Services, Inc. is a private company based in Bakersfield, California, specializing in high-quality services for the oil and industrial energy sectors. Established in 2005, TRB provides a comprehensive suite of services including well cementing, coiled tubing intervention, high-pressure pumping, and well abandonment. The company prides itself on its commitment to safety and environmental compliance, ensuring that all operations meet stringent health and safety standards. With a workforce of approximately 36 employees, TRB has built a reputation for reliability and exceptional customer service. They cater to both independent and major oil operators across California and have expanded their reach to include areas in Nevada, Utah, Texas, and New Mexico. TRB also offers tools and sales related to cased hole completion, further enhancing their service portfolio.

2. Magnum Services

• Website: magnumservices.com
• Ownership type: Private
• Headquarters: Strathmore, California, United States (USA)
• Employee distribution: Canada 86%, United States (USA) 14%
• Founded year: 2008
• Headcount: 201-500
• LinkedIn: magnumcementingservices

Magnum Services, based in Strathmore, California, is a private company that has been active in the oil and gas industry since its inception in 2008. With a workforce of approximately 243 employees, the company specializes in cementing, fluid services, and soil stabilization. Their operations cater to various sectors, including oil and gas, construction, and agriculture. Magnum Services is recognized for its innovative solutions that enhance operational efficiency while prioritizing environmental responsibility. The company has developed a strong presence in North America, with a significant portion of its workforce located in Canada. Their commitment to research and development, along with in-house testing and quality assurance, positions them as a competent service provider in the oilfield services market.

3. PPS Operators LLC

• Website: ppsoperators.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1994
• Headcount: 201-500
• LinkedIn: ppsoperators

PPS Operators LLC, based in Bakersfield, California, has been a significant player in the oil and gas industry since its inception in 1994. The company provides a range of services that are crucial for optimizing production and ensuring safety in oilfield operations. Their core services include production and exploratory well testing, fluid level monitoring, steam testing, and comprehensive engineering services. PPS Operators also offers equipment sales and rentals, catering to both short-term and long-term needs of their clients. With a focus on customer satisfaction and a commitment to high-quality service, the company has built a reputation for reliability and expertise in the field. Their personnel are professionally trained, emphasizing safety and efficiency in all operations, which is vital in the oil and gas sector.

4. GEO Drilling Fluids, Inc.

• Website: geodf.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1968
• Headcount: 51-200
• LinkedIn: geo-drilling-fluids-inc-

GEO Drilling Fluids, Inc. is a private company based in Bakersfield, California, specializing in drilling fluids and engineering services tailored for the oil and gas industry, as well as geothermal projects. Established in 1968, the company has built a reputation for providing high-performance drilling fluids, technical assistance, and training services. With a workforce of approximately 81 employees, GEO Drilling Fluids operates multiple facilities across key regions, including California, the Rockies, and the Mid-Continent. Their product offerings include proprietary high-temperature fluids designed for extreme environments, reflecting their commitment to innovation and quality. The company serves a range of clients in the drilling sector, ensuring efficient operations through reliable solutions. Their mission emphasizes cost-effectiveness and performance, making them a valuable partner for businesses in the oilfield services industry.

5. Cal Coast Acidizing Co.

• Website: ccacidizing.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1966
• Headcount: 11-50
• LinkedIn: cal-coast-acidizing-servc-co

Cal Coast Acidizing Co. is an oilfield service company based in Bakersfield, California, specializing in stimulation and pressure pumping services for oil producers in Central California. Established in 1966, the company has built a reputation for providing safe, reliable, and expert services to both major and independent oil producers. With a team that boasts over 200 years of cumulative experience, Cal Coast Acidizing focuses on enhancing well efficiency through regular acidizing and other stimulation services. They also offer rental equipment to support their operations, ensuring that clients have access to the necessary tools for effective oil extraction. The company is actively involved in the community, partnering with local organizations and participating in industry associations like the American Petroleum Institute (API) and the California Independent Petroleum Association (CIPA). This involvement underscores their commitment to both the industry and the local community.

6. B & L Casing Service, LLC

• Website: blservicesinc.com
• Ownership type: Family Owned
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1989
• Headcount: 51-200
• LinkedIn: b-%26-l-casing-service-llc

B & L Casing Service, LLC, based in Bakersfield, California, is a family-owned oilfield services company that has been operational since 1989. With a workforce of approximately 53 employees, the company specializes in providing a wide range of services and equipment tailored for the oil, gas, and geothermal industries. Their offerings include casing services, well control solutions, and equipment rentals, which are essential for ensuring safety and efficiency in oilfield operations. B & L Services has developed a reputation for its commitment to safety, achieving high scores on IS Networld, a global resource for measuring industry safety. The company has expanded its service portfolio over the years, adapting to the evolving needs of the industry while maintaining a focus on client objectives and project success. Their operational reach extends across several states, including California, Colorado, Texas, and North Dakota, showcasing their capability to serve clients in various geographical locations. B & L Services prides itself on its modern equipment and technology, which are regularly updated to meet industry standards and client expectations.

7. General Production Service

• Website: genprod.com
• Ownership type: Private
• Headquarters: Taft, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1967
• Headcount: 501-1000
• LinkedIn: general-production-service

General Production Service of California Inc. (GPS) is a private service company based in Taft, California, with a history dating back to 1967. Founded by Charlie Beard, GPS began with a single rig and has since expanded to operate 80 rigs, including both singles and doubles. The company specializes in well servicing, construction, and a variety of special services tailored for the oil and gas industry. Their offerings include full-service well workovers, production well services, and construction projects such as lease maintenance and facility upgrades. GPS also provides specialized services like coil tubing, cement pumping, and vacuum truck operations. With a workforce of approximately 600 employees, GPS emphasizes safety and operational efficiency, ensuring that they meet the evolving needs of their clients in a competitive market.

8. Decca Energy

• Website: deccaenergy.com
• Ownership type: Private
• Headquarters: Santa Barbara, California, United States (USA)
• Employee distribution: United States (USA) 51%, Canada 49%
• Founded year: 2015
• Headcount: 1001-5000
• LinkedIn: decca-consulting-group

Decca Energy, founded in 2015 and based in Santa Barbara, California, is a private company that provides energy consulting and workforce management services primarily to the oil and gas industry. With a workforce of around 68 employees, Decca Energy has built a reputation for delivering high-quality consulting services that enhance productivity and streamline operations. The company offers a range of services, including drilling supervision, pipeline inspection, and workforce management, catering to both upstream and midstream clients. Decca Energy emphasizes safety and compliance, maintaining a strong safety record and actively participating in safety management organizations. They have established long-standing relationships with numerous oil and gas operators, demonstrating their commitment to the industry. As a subsidiary of Employbridge, Decca Energy benefits from the strength and resources of a larger workforce provider, further enhancing their service capabilities.

9. Western Wireline Inc

• Website: westernwireline.com
• Ownership type: Private
• Headquarters: Ventura, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2001
• Headcount: 51-200
• LinkedIn: western-wireline-inc

Western Wireline Inc, based in Ventura, California, has been operational since 2001, providing essential oilfield services to the oil and gas industry. The company specializes in a variety of maintenance and logging solutions tailored for both on-shore and off-shore oil wells. With a workforce of approximately 51-200 employees, Western Wireline emphasizes safety and quality assurance in its service delivery. Their offerings include slickline services, cased hole services, and completion services, which are critical for the efficient operation of oil wells. The company prides itself on its commitment to customer satisfaction and operational excellence, ensuring that their equipment and services meet high standards. They operate 24/7, demonstrating their readiness to respond to client needs at any time. Western Wireline's focus on maintaining a robust safety program further underscores their dedication to operational integrity in a demanding industry.

10. Magnum Cementing Services

• Website: magnumcement.ca
• Ownership type: Private
• Headquarters: Strathmore, California, United States (USA)
• Founded year: 2008
• Headcount: 51-200
• LinkedIn: magnumcementingservices

Magnum Cementing Services Ltd. is a private service provider in the oil and gas industry, based in Strathmore, California. Established in 2008, the company specializes in cementing, fluid services, and soil stabilization. Magnum caters to various sectors, offering tailored solutions that enhance well integrity and optimize production. Their commitment to environmental responsibility is evident in their operational practices, which prioritize sustainability and efficiency. With a dedicated team boasting over 50 years of industry experience, Magnum has quickly gained recognition for its innovative approaches and ability to adapt to market changes. The company operates across North America, providing essential services that support the oil and gas sector while maintaining a focus on safety and quality assurance.

11. Kings Oil Tools, Inc.

• Website: kingsoiltools.com
• Ownership type: Corporate
• Headquarters: San Ardo, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2007
• Founded year: 1982
• Headcount: 1-10
• LinkedIn: kings-oil-tools-inc.

Kings Oil Tools, Inc., founded in 1982 and based in San Ardo, California, is an oil well servicing company that provides a comprehensive range of services tailored for the oil and gas sector. The company specializes in well servicing, fishing tools, and well abandonment, catering primarily to oil producers. With multiple locations across California, including Bakersfield, Coalinga, and Taft, Kings Oil Tools has positioned itself as a significant player in the local market. Their operations are supported by experienced personnel and a full line of quality equipment, which allows them to meet the evolving needs of their clients effectively. Kings Oil Tools prides itself on its commitment to safety, ensuring that all operations are conducted with a focus on minimizing risks and maximizing customer satisfaction. The company has not reported any recent funding, indicating a stable operational model since its inception.

12. Paul Graham Drilling

• Website: paulgrahamdrilling.com
• Ownership type: Family Owned
• Headquarters: Rio Vista, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1968
• Headcount: 11-50
• LinkedIn: paul-graham-drilling

Paul Graham Drilling and Service Company, established in 1968, is a family-owned business based in Rio Vista, California. The company specializes in providing drilling services for the oil, gas, and geothermal industries. With a fleet of eight rigs, they are capable of drilling to depths of 13,500 feet and servicing wells up to 18,000 feet. Their service offerings include not only drilling but also well servicing, mobile welding, fabrication, and machining. Paul Graham Drilling prides itself on its commitment to safety and quality, ensuring that projects are completed efficiently and effectively. The company serves clients across California, Oregon, Washington, and Nevada, catering to the needs of businesses in the energy sector. Their extensive experience and focus on customer satisfaction have helped them maintain a strong reputation in the industry.

13. John M.Phillips, LLC

• Website: johnmphillips.com
• Ownership type: Private
• Headquarters: Signal Hill, California, United States (USA)
• Employee distribution: Argentina 53%, Chile 26%, United States (USA) 9%, Other 13%
• Founded year: 1952
• Headcount: 11-50
• LinkedIn: john-m-phillips

John M. Phillips, LLC is an independent energy services company based in Signal Hill, California, with a history dating back to 1952. The firm specializes in providing equipment and services tailored for the oil, gas, geothermal, and mining industries. Their offerings include directional drilling, fishing services, workover and thru-tubing services, and equipment rentals. With a workforce of around 70 employees, the company has established a significant international footprint, particularly in Argentina, Chile, Colombia, and the United States. John M. Phillips is committed to delivering high-quality solutions and operational support, ensuring that their clients can navigate complex drilling and extraction operations effectively. Their mission emphasizes a holistic approach to service delivery, aiming to add value to client projects through skilled personnel and advanced equipment.

14. Horizon Well Logging, Inc.

• Website: horizon-well-logging.com
• Ownership type: Private
• Headquarters: Lompoc, California, United States (USA)
• Employee distribution: United States (USA) 90%, Kenya 10%
• Founded year: 1992
• Headcount: 11-50
• LinkedIn: horizon-well-logging-inc.

Horizon Well Logging, Inc., founded in 1992 and based in Lompoc, California, is a private geological services company that specializes in wellsite geology and mudlogging for the geothermal, oil, and gas industries. With a dedicated team of seasoned geologists, many of whom hold advanced degrees, Horizon provides critical real-time data and monitoring services that enhance the safety and efficiency of drilling operations. The company has successfully logged over 3,500 wells, including more than 1,000 horizontal wells, and boasts a nearly flawless safety record. Their clientele includes a range of operators in the geothermal and oil sectors, who rely on Horizon's expertise for accurate geological analysis. The company has also made significant contributions to geothermal energy projects, working with notable organizations such as the U.S. Navy Geothermal Program Office and various commercial partners. Horizon's commitment to environmental protection and independent monitoring further underscores its relevance in the oilfield services industry.

15. Titan Oil Recovery, Inc

• Website: titanoilrecovery.com
• Ownership type: Private
• Headquarters: Pomona, California, United States (USA)
• Employee distribution: Canada 65%, United States (USA) 35%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: titan-oil-recovery-inc

Titan Oil Recovery, Inc., founded in 2007 and based in Pomona, California, specializes in enhanced oil recovery services. The company utilizes its proprietary Organic Oil Recovery technology to improve oil production from existing fields. This innovative approach not only enhances recovery rates but also extends the operational life of oil reservoirs. Titan Oil Recovery serves oil and gas operators globally, with a significant portion of its workforce located in Canada. The company has successfully applied its technology in over 65 oil fields across five continents, achieving a remarkable 98% success rate in injector well applications. Titan's commitment to ecological advancements in oil recovery is evident in its biodegradable and low-cost solutions, which require no capital expense. This focus on sustainability positions Titan Oil Recovery as a relevant player in the oilfield services industry, catering to the needs of operators looking for effective and environmentally responsible recovery methods.

16. PROS, Inc.

• Website: proswelltesting.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 51-200
• LinkedIn: pros-incorporated

PROS, Inc., founded in 2007 and based in Bakersfield, California, is an oilfield service company that provides a variety of essential services to the oil and gas industry. The company focuses on well testing, rig-up services, and industrial IoT solutions, catering to the needs of businesses in this sector. With a workforce of approximately 49 employees, PROS, Inc. emphasizes safety and operational efficiency in its service delivery. Their offerings include field services such as production well testing, flowback services, and underbalanced drilling, as well as laboratory and shop services that support the operational needs of their clients. PROS, Inc. has established itself as a significant player in California's oilfield services market, continuously expanding its service capabilities to meet the evolving demands of the industry.

17. Platinum Samandy Ventures (PSV)

• Website: platinumsamandy.com
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: Nigeria 71%, Angola 29%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: platinum-samandy

Platinum Samandy Ventures (PSV), founded in 2007 and headquartered in Los Angeles, California, operates as a service provider in the oil and gas sector. The company specializes in a range of services, including offshore and onshore support, project management, and maintenance operations. With a workforce primarily based in Nigeria and Angola, PSV serves clients across the energy sector, focusing on improving operational efficiency and safety through innovative solutions. Their expertise covers the entire oil and gas value chain, from exploration and production to refining and distribution. PSV has also established several subsidiaries to cater to specific market needs, including Platinum Samandy Energy and Platinum Samandy Marine. The company has been recognized for its commitment to quality and safety, receiving awards such as the Award of Excellence from Chevron for its performance in project management and service delivery.

18. Pipe Pros Inc

• Website: pipe-pros.com
• Ownership type: Corporate
• Headquarters: Concord, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2024
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: pipe-pros-inc

Pipe Pros Inc, established in 2009, is an energy services company based in Concord, California. The firm specializes in the installation and maintenance of casing and tubing for oil and natural gas wells. With a dedicated team of experienced personnel, Pipe Pros provides a range of services that include casing running tools, handling equipment, and pickup/laydown services. Their focus on utilizing new equipment and ensuring safety compliance reflects their commitment to delivering efficient and reliable solutions for their clients in the oil and gas industry. The company primarily serves businesses that require dependable support for their drilling operations, making them a notable player in the oilfield services sector.

19. Rival Well Services Incorporated

• Website: rivalwellservices.com
• Ownership type: Family Owned
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: rival-well-services-incorporated

Rival Well Services Incorporated, founded in 2007 and based in Bakersfield, California, is a family-owned oil and gas service company. With a workforce of approximately 21 employees, the company specializes in well servicing operations, including well abandonment, workover, and consultative services. Rival Well Services operates a fleet of 18 well service rigs, 9 well servicing pumps, and 2 coil tubing units, generating annual revenues nearing $10 million. The company has built a reputation for reliability and expertise, drawing on decades of experience in the oil and gas industry. They serve a range of clients, ensuring compliance with safety regulations while enhancing productivity. Their focus on safety and environmental management further underscores their commitment to responsible operations in the oilfield services sector.

20. MTS Solutions, LLC

• Website: mts-stim.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1983
• Headcount: 11-50
• LinkedIn: mts-stimulation-services-inc

MTS Solutions, LLC, based in Bakersfield, California, has been a key player in the oilfield services industry since its inception in 1983. The company specializes in providing stimulation services and chemical treatments tailored for the oil and gas sector. Their offerings include a wide range of products such as acids, inhibitors, surfactants, and specialty chemicals designed to enhance oil production and ensure well integrity. MTS Solutions serves a variety of clients, including oil producers and operators, who depend on their expertise for effective well management. The company prides itself on its commitment to safety, with rigorous training and safety protocols in place for its employees. Over the years, MTS has built a reputation for reliability and quality, continuously adapting to the evolving needs of the industry. Their focus on environmentally safe products also reflects a growing trend towards sustainability in oilfield operations.

21. Sturgeon Services International

• Website: sturgeonservices.com
• Ownership type: Private
• Headquarters: Bakersfield, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1927
• Headcount: 201-500
• LinkedIn: sturgeon-services-international

Sturgeon Services International (SSI), based in Bakersfield, California, is an oilfield contractor with a rich history dating back to 1927. Originally established as an earthwork company, SSI has evolved to provide a full spectrum of construction and maintenance services for the oil and gas industry. Their offerings include earthwork, grading, demolition, and specialized services such as rathole drilling and hydro excavation. SSI serves a variety of clients, including major oil companies, and has expanded its reach to include projects in California, Texas, and New Mexico. The company prides itself on its safety culture, consistently achieving lower incident rates compared to industry standards. This commitment to safety and operational excellence positions SSI as a reliable partner in the oilfield services sector.

Oilfield Services Insights: Key Companies in California

Company	Headquarter	Size	Founded	Ownership
TRB Oilfield Services, Inc.	Bakersfield, California, United States (USA)	51-200	2005	Private
Magnum Services	Strathmore, California, United States (USA)	201-500	2008	Private
PPS Operators LLC	Bakersfield, California, United States (USA)	201-500	1994	Private
GEO Drilling Fluids, Inc.	Bakersfield, California, United States (USA)	51-200	1968	Private
Cal Coast Acidizing Co.	Bakersfield, California, United States (USA)	11-50	1966	Private
B & L Casing Service, LLC	Bakersfield, California, United States (USA)	51-200	1989	Family Owned
General Production Service	Taft, California, United States (USA)	501-1000	1967	Private
Decca Energy	Santa Barbara, California, United States (USA)	1001-5000	2015	Private
Western Wireline Inc	Ventura, California, United States (USA)	51-200	2001	Private
Magnum Cementing Services	Strathmore, California, United States (USA)	51-200	2008	Private
Kings Oil Tools, Inc.	San Ardo, California, United States (USA)	1-10	1982	Corporate
Paul Graham Drilling	Rio Vista, California, United States (USA)	11-50	1968	Family Owned
John M.Phillips, LLC	Signal Hill, California, United States (USA)	11-50	1952	Private
Horizon Well Logging, Inc.	Lompoc, California, United States (USA)	11-50	1992	Private
Titan Oil Recovery, Inc	Pomona, California, United States (USA)	11-50	2007	Private
PROS, Inc.	Bakersfield, California, United States (USA)	51-200	2007	Private
Platinum Samandy Ventures (PSV)	Los Angeles, California, United States (USA)	11-50	2007	Private
Pipe Pros Inc	Concord, California, United States (USA)	11-50	2009	Corporate
Rival Well Services Incorporated	Bakersfield, California, United States (USA)	11-50	2007	Family Owned
MTS Solutions, LLC	Bakersfield, California, United States (USA)	11-50	1983	Private
Sturgeon Services International	Bakersfield, California, United States (USA)	201-500	1927	Private

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