The well logging service industry is a crucial sector within the broader oil and gas industry. Companies in this field provide critical data on the geological properties and fluid content of oil and gas wells. These services, which include mud gas sampling, cuttings and rock analyses, and wellbore surveying, help to optimize drilling operations and provide insight into reservoir evaluation. As the industry evolves to adopt advanced technologies and environmental considerations, companies are focusing not only on delivering high-quality data and efficiency but also on implementing safer and more sustainable practices. The industry is set for significant growth as innovations continue to shape the future of well logging services.


Top 24 Well Logging Service Companies

1. GEOLOG International

Geolog is a leading independent surface logging company providing a range of wellsite geochemistry services. They offer mud gas sampling, cuttings analysis, and rock analyses to extract valuable information about reservoir properties. With a commitment to quality and innovation, Geolog helps optimize drilling efficiency and evaluate reservoir and source rock. They actively support local charities and prioritize community engagement in the countries where they operate.


2. Scientific Drilling

Scientific Drilling is a company that provides measurement while drilling (MWD) systems, logging while drilling (LWD) technologies, and survey management services for the oil and gas industry. They offer solutions for wellbore surveying, reservoir evaluation, flow logging, well integrity evaluation, and pressure while drilling. With a focus on safety, quality, and customer satisfaction, Scientific Drilling aims to deliver advanced technology and expertise to optimize drilling operations.


3. SeaLand Engineering and Well Services

SeaLand Engineering & Well Services is a multinational company in the oil and gas industry. It offers a wide range of services including wireline logging, directional drilling, tubing conveyed perforation, well testing, mobile oil treater, and procurement services. The company is committed to customer obsession, trust, respect, people safety, a clean environment, gender diversity, teamwork, and solidarity. SeaLand has a highly competent workforce with experience from renowned oil and gas companies.


4. Well Services of Iran (Schlumberger Methods) WSI

  • Website: wsi-oilfield.com
  • Headquarters: Tehran, Tehran, Iran (Islamic Republic of)
  • Founded: 1977
  • Headcount: 201-500
  • LinkedIn

WSI-Oilfield is a global integrated service company in the oil and gas industry, offering a wide range of well completion and productivity solutions. With a focus on quality and safety, WSI provides services such as wireline logging, stimulation services, data and consulting services, and drilling and measurements. WSI is committed to delivering efficient and effective solutions to maximize production and enhance reservoir performance.


5. Eastern United Petroleum Services

Eastern United Petroleum Services (EUPS) is a petroleum services company based in Kuwait. They offer a wide range of services including open hole logging, wireline perforation, well testing, data services, consulting services, and wellhead maintenance. With a focus on quality and HSE standards, EUPS provides cost-effective solutions to the oil and gas industry.


6. Probe

  • Website: probe1.com
  • Headquarters: Fort Worth, Texas, United States
  • Founded: 1994
  • Headcount: 51-200
  • LinkedIn

Probe is a company that specializes in cased hole logging and advanced monitoring technology for the oil and gas industry. They offer a range of tools and services for well integrity, well monitoring, production logging, and formation evaluation. With a focus on quality and innovation, Probe is committed to providing solutions that meet the needs of their customers.


7. Geowellex Mud Logging

  • Website: geowellex.com
  • Headquarters: Rio De Janeiro, Rio De Janeiro, Brazil
  • Founded: 2012
  • Headcount: 11-50
  • LinkedIn

Geowellex is a technology-driven company specializing in gas oil logging while drilling (GOLD) and automated mud logging (AUTOMUD) solutions. With a focus on reliability and quality, Geowellex offers advanced analysis, geological consulting, and drilling services for the energy industry.


8. Roke Technologies Ltd.

  • Website: roke.ca
  • Headquarters: Calgary, Alberta, Canada
  • Founded: 1967
  • Headcount: 51-200
  • LinkedIn

Roke Technologies is a company that provides Quad Neutron logging and reservoir evaluation solutions for the oil and gas industry. They offer unique and patented technology that has been field tested in harsh environments, delivering valuable results to their clients.


9. Stag Geological Services Limited

Stag Geological Services is a leading global provider of subsurface design services for well P&A. They offer Annular Integrity Evaluation and Bond Log Verification services to ensure annular containment of hydrocarbons. With over 25 years of experience, Stag has become the foundation stone of a successful career in Well Delivery and Petroleum Geology.


10. Empire Wireline

Empire Wireline Special Services is a company that specializes in casing inspection in the oil and gas industry. They offer advanced hardware and software solutions to ensure accurate and efficient inspections. With their expertise and cutting-edge technology, they provide clients with the Empire advantage.


11. NFES - Norwegian Formation Evaluation Society

  • Website: nfes.org
  • Headquarters: Stavanger, Rogaland, Norway
  • Founded: 1981
  • Headcount: 51-200
  • LinkedIn

NFES is an SPWLA chapter that organizes monthly meetings and conferences to discuss formation evaluation. They also provide abstracts of past events on their website.


12. Petro Gostaran Ofogh (PGO)

Petro Gostaran Ofogh Company, well known as PGO utilizes a variety of Petroleum Drilling technologies to ensure the absolute best quality deliverable. We understand your need for the most customization service offerings when it comes to Mud logging Services, Geochemistry Laboratory, Drilling Jar technologies and Directional Drilling Services, which is why we offer all of the following technologies


13. Scott Frailey

  • Website: smf-res-eng.com
  • Headquarters: Champaign, Illinois, United States
  • Headcount: 1-10

Scott Frailey Ph.D, PE, Consulting Services, Reservoir Engineering, CO2 storage, CO2 EOR , Illinois oil industry, Illinois oil production, Illinois geology, Well log analyses, Pressure transient analyses, Storage engineering, CO2 enhanced oil recovery, Reservoir evaluation, Property evaluation Illinois oil industry production, geology, Well log, Pressure analyses, Reservoir engineering, CO2 storage, CO2 EOR, oil recovery, property evaluation


14. Canadian Well Logging Society

The Canadian Well Logging Society (CWLS) is the oldest organization devoted to log analysis, incorporated in Calgary, Canada in 1957. The CWLS provides technical courses, publications, and events for the benefit of those interested in log analysis and petrophysics.


15. Sound Energy LLC

Sound Energy Group is an Oil & Gas geoscience and engineering consulting company that focuses on the cost-efficient discovery and production of hydrocarbon reservoirs through the application of sound geoscience and engineering technology.


16. Drillog Inc

Drillog Petro-Dynamics Limited (drillogpdl.com) is a company offering a wide range of drilling services for the oil and gas industries. They specialize in services such as measurement while drilling, logging while drilling, well path design, and bottom hole assembly analysis. With a focus on accuracy and reliability, they provide geosteering and formation evaluation services using advanced technology and tools. Their expertise includes directional drilling, torque and drag analysis, and behavioral analysis, allowing them to respond to client challenges and achieve optimal wellbore placement for maximum production.


17. Reservoir Group

Reservoir Group is a global niche oilfield services company headquartered in Houston. With over 70 years of experience, the company provides tools and expertise for drilling, completions, and production operations. They partner with E&P operators and service companies to deliver safe, high-quality, and cost-effective solutions. Reservoir Group operates in 27 countries on six continents.


18. International Reservoir Technologies, Inc

  • Website: irt-inc.com
  • Headquarters: Lakewood, Colorado, United States
  • Founded: 1989
  • Headcount: 11-50
  • LinkedIn

International Reservoir Technologies, Inc. (IRT) offers technical petroleum reservoir management consulting services to the worldwide petroleum industry.


19. Gaia Earth Group

Gaia Earth Group is a company specializing in wellbore and cable dynamics and future conveyance technologies. They offer the WXSO, a memory gauge with pressure, temperature, accelerometer, and magnetometer measurements, designed to provide a more accurate interval mud weight and improve wireline and logging operations.


20. Pioneer-Alfa Petroleum Services

Petroleum-Services.com is a company that specializes in providing comprehensive petroleum services to clients in the oil and gas industry. They offer a wide range of services including exploration and production support, drilling and well services, refining and petrochemical services, and pipeline and storage solutions.


21. OnePetro

  • Website: onepetro.org
  • Headquarters: Richardson, Texas, United States
  • Headcount: 11-50

OnePetro.org is an online library of technical literature that provides access to over 200,000 articles, journals, conference papers and books on the upstream oil and gas industry.


22. Athlon Solutions

Athlon, a Halliburton Service, provides specialty water and process treatment chemicals, customized engineering solutions, and services to the industrial sector, including the refining, petrochemical, contract manufacturing & wholesale, ammonia/fertilizer, and power/utilities industries.


23. Halliburton AS

Halliburton AS is a real estate company based out of Eldfiskvegen 1, Tananger, ROGALAND, Norway.


24. PEOffice-Make it easy to manage your oil & gas fields!

  • Website: optpt.com
  • Headquarters: Beijing, Beijing, China
  • Founded: 1998
  • Headcount: 51-200
  • LinkedIn

By its management and manipulation,PEOffice enables the users to run a reservoir description and characterization, perform a production analysis forecast and define a depletion strategy formulation.


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