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• Axens - Serving the refining and processing industry. Products include processes, catalysts, adsorbents and equipment, and a complete set of services optimizing performance.
• Baker Hughes Inc. - Services, tools and software for drilling and formation evaluation, well completion, production management and seismic data collection and interpretation.
• Bateman BV Engineering - Providers of engineering, procurement, construction, maintenance, and business services globally.
• Blair Nelson Enterprises Ltd - Pipeline and facility construction in central and northern Alberta, Canada.
• Chemical Tracers Inc. - Inject chemical tracers into a single well and then produce fluids from the well to determine residual oil saturation, connate water saturation and fractional flow.
• Darztech Engineering - Provides engineering design, feasibility studies and planning as well as construction management, facilities and maintenance programs.
• Diamond Energy Services Inc. - Oilfield service of gas and oil wells in Saskatchewan and Alberta.
• DJI & Associates, Inc. - Engineering design and drafting services for the natural gas pipelines.
• DTN Dimond Control Systems, Inc. - Terminal automation using the Internet as the centralized point of access.
• Everbrook Systems Ltd - Process design and EPC contractor for water, waste water and oily wastewater treatment to the petrochemical and municipal markets.
• Flow Petroleum Services Inc. - Contract management of operations, human resources, reporting requirements, logistics and procurement. Providing contract personnel.
• Fluor Corporation - Providing engineering, procurement, construction, maintenance, and business services worldwide.
• Fuelcare Ltd. - Provides solutions to prevent and remediate water and microbial contamination in fuel storage systems. Based in the UK.
• Gastec Technology Products and Services - Providing gas supplies, advanced consumer and commercial technology utilizing gas, and consulting on most efficient utilization of gas.
• GFI-Petromark - Provider of marking, detection, analysis and control systems for the oil industry. Site contains information about the company and molecular fuel marker technology.
• Halliburton Company - A major services and construction company, including well logging, well completion, and reservoir engineering.
• Helix Energy Solutions Group - Provides subsea construction, inspection, maintenance, repair and salvage services to offshore natural gas and oil industry.
• HTK Consultants, Inc. - Offers petroleum engineering and wellsite supervision. Designs and fabricates specialty drilling and completion products for the subsea environment.
• International Business Development Co LLC - Engineering design of oil and gas facilities, procurement, construction, operation and maintenance, well engineering. Located in Oman.
• IROilRigs - Holding company for a group of companies which lease or sell drilling equipment, do contract drilling, and build small-scale refineries. Operating mainly in Indonesia, China, Uzbekistan, and Kazakhstan.
• Island Operating Company, Inc. - Offshore property management in the Gulf of Mexico.
• ISN - IT and telecommunications consultants specialising in the oil and gas industry, offshore development and remote office locations.
• Lanmark Engineering Inc. - Engineering, procurement, construction and management services for western Canada.
• LiquiFile Services - An electronic tax service for federal and state tax reporting.
• Midstates Fuel Services - Specializes in cleaning contaminated fuels and light oils.
• Oilfields Supply Center - Dubai-based company providing onshore facilities, logistical support, and engineering to Persian Gulf area and south Asia.
• PanTerra Geoconsultants B.V. - Geoscience consultancy group providing services to the international oil and gas industry specializing in integrated reservoir studies and consultancy. Based in the Netherlands.
• Parker Drilling Co. - Worldwide company which provides offshore and onshore contract drilling and drilling-related services. (NYSE: PKD)
• PetroAcct, L.P. - Operational accounting, land administration and production accounting outsourcing services.
• PetroSkills - Petroleum training offering practical short courses focusing on application and hands-on utility. Includes course descriptions, instructors and online registration.
• PT WIJAYA PURA - Indonesian company providing complete project services including engineering, project management, construction, and procurement of supplies.
• Puyang Zhongyuan Sanli Industry Co., Ltd. - Manufacturer of oil drilling auxiliaries in China, offering a diverse range of well drilling, well cementing, and oil extraction chemicals. Also produces glycine.
• Schlumberger - Global oilfield and information services company with a major focus on energy
• SDV Oilfield - Worldwide logistical support and management.
• SMS Group - Provides management, design and logistical services. Also custom manufactures blow out preventers and other hydraulic equipment.
• Tembi Energy Industries - Providing engineering, procurement and management for oil and gas projects. Based in Iran.
• WaveTrak Electronics Ltd. - Manufactures pipeline pigging equipment for observation and tracking of pipeline conditions.