Fluor Corporation - Providing engineering, procurement, construction, maintenance, and business services worldwide. Halliburton Company - A major services and construction company, including well logging, well completion, and reservoir engineering. 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. DJI & Associates, Inc. - Engineering design and drafting services for the natural gas pipelines. 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. Flow Petroleum Services Inc. - Contract management of operations, human resources, reporting requirements, logistics and procurement. Providing contract personnel. Axens - Serving the refining and processing industry. Products include processes, catalysts, adsorbents and equipment, and a complete set of services optimizing performance. ISN - IT and telecommunications consultants specialising in the oil and gas industry, offshore development and remote office locations. Oilfields Supply Center - Dubai-based company providing onshore facilities, logistical support, and engineering to Persian Gulf area and south Asia. Island Operating Company, Inc. - Offshore property management in the Gulf of Mexico. PT WIJAYA PURA - Indonesian company providing complete project services including engineering, project management, construction, and procurement of supplies. 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. Schlumberger - Global oilfield and information services company with a major focus on energy Fuelcare Ltd. - Provides solutions to prevent and remediate water and microbial contamination in fuel storage systems. Based in the UK. Midstates Fuel Services - Specializes in cleaning contaminated fuels and light oils. 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. 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. PetroSkills - Petroleum training offering practical short courses focusing on application and hands-on utility. Includes course descriptions, instructors and online registration. Parker Drilling Co. - Worldwide company which provides offshore and onshore contract drilling and drilling-related services. (NYSE: PKD) International Business Development Co LLC - Engineering design of oil and gas facilities, procurement, construction, operation and maintenance, well engineering. Located in Oman. Baker Hughes Inc. - Services, tools and software for drilling and formation evaluation, well completion, production management and seismic data collection and interpretation. Diamond Energy Services Inc. - Oilfield service of gas and oil wells in Saskatchewan and Alberta. Lanmark Engineering Inc. - Engineering, procurement, construction and management services for western Canada. Specialised Management Services Ltd (SMS) - Provides management, design and logistical services. Also custom manufactures blow out preventers and other hydraulic equipment. Momentum Engineering - Offers well drilling and program engineering services and provides total drilling operations management for jack-up, land drilling and pipeline projects. Psicon - Specializes in system design, engineering, component selection, and modular construction services to the power and oil and gas industry.