• National Oilwell Varco
  "a worldwide leader in the design, manufacture and sale of comprehensive systems and components used in oil and gas drilling and production, the provision of oilfield tubular inspection, internal tubular coatings and other services, as well as in providing supply chain integration services to the upstream oil and gas industry."
• The Nautronix Group
  "Offshore Technology & Mining products. Products & systems for the international offshore oil & gas and
  defence sectors include : Dynamic Positioning • Vessel Control • Underwater Acoustics • Subsea Communications • Submarine Ranging."
• Navasota Resources Ltd.
  " an oil and gas exploration and production company "[Canadian]
• Nelson Petroleum
• Neotechnology Consultants Ltd. (Neotec)
  "provides fluid flow modelling software, as well as consulting, training and support services to clients in the oil & gas and related industries.
• Netherland, Sewell & Associates, Inc. (NSAI)
  "International Petroleum Consultants .... NSAI's highly experienced staff of Engineers, Geologists, Geophysicists, and Petrophysicists routinely perform integrated field studies, reserve estimations, risk assessments, and economic evaluations worldwide for major and independent oil companies, financial institutions, governmental agencies, investment groups, accountants, and law firms."
• NetworkInnovations
  "Communicate.Anywhere."
• New England Research
  "focus on the measurement and interpretation of rock properties in support of geophysics, geology, and engineering applications. We're active in research and development of technology for measuring bulk, acoustic, electrical, flow, mechanical, and microstructural properties in both cores and boreholes."
• New Horizon Exploration Inc.
  "an integrated oil and gas exploration and production company"
• New Hampshire Boring Inc.
  "provides environmental and geotechnical drilling and boring services throughout the greater New England area"
• New Tech Engineering
  "the force in outsource"
• Newfield Exploration Company
  "An independent oil & gas company focused in the Gulf of Mexico"
• Newpark Drilling Fluids
  "provides comprehensive oilfield waste management, drilling fluids and site construction services to the oil and gas industry."
• Newpark Resources, Inc
• Newport Exploration Ltd.
  " The company is exploring and developing precious and base metal properties in Mongolia, and holds the rights to certain petroleum and natural gas properties in Australia and New Zealand. "
• Nexen, Inc
  "an independent, Canadian-based global energy and chemicals company. Core business activities include the exploration, development, production and marketing of crude oil and natural gas.
• NGI Norwegian Geotechnical Institute
• Nido Petroleum Limited
  "a petroleum company with a growth strategy as follows...Pursue identified exploration potential, including drilling the Coron North prospect, basing expenditure commitments on the sound technical basis"
• Nigerian National Petroleum Corporation
• Niko Resources Ltd.
  
• Noble Drilling
  "a leading provider of diversified services for the oil and gas industry worldwide" and transmission companies.... offers turnkey solutions to all pipeline challenges."
• Noreco
  "a publicly owned, independent E&P company with focus on exploration, development and production of oil and gas in the North Sea region."
• Noria Corp.
  "Lubrication and oil analysis"
• Norris A Dover Resources Company
  "the world's leader in sucker rod production"
• Norriseal a Dover Company
  "has been a leading supplier of valve and control solutions for more than four decades. "
• Norsk Hydro
  "the largest industrial company in Norway. Its main fields of operation are Agriculture, Light Metals, Oil and Gas, and Petrochemicals."
• Norwest Energy NL
  "a Perth based exploration company focusing on exploration in the north west of Australia."
• Nuinsco Resources Limited
  "a Canadian Exploration company"
• NuVista Energy Ltd.
  "engaged in exploration, development and production activities on properties located in eight core areas of the Western Canadian Sedimentary Basin."

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

• O'Donnell Consulting Engineers, Inc.
  "Provides consulting engineering services in the design and analysis of process equipment, including pipes, valves, structural supports, etc."
• Obele Oil Corporation
  "family-owned, independent oil and gas company."
• Occidental Petroleum Corporation
  " diversified company with operations in three core businesses: oil and gas exploration and development, chemicals, and natural gas transmission and marketing"
• Oceaneering International, Inc.
  " is an advanced applied technology company that provides engineered services and hardware to Customers who operate in marine, space, and other harsh environments."
• OceanTec Electronics
  "equipment suppliers to industry, government, and universities for offshore oil production, subsea controls, seismic exploration, environmental monitoring, and oceanographic research. "
• Offshore Oil Services, Inc.
  "also known widely as Muchowich Docks, meets the demands of the offshore oil and gas industry through its full service marine terminal.... also provides marine transportation services through its fleet of crew boats."
• OFI Testing Equipment
  "has provided testing instruments and reagents for the drilling fluids, cementing, and wastewater industries."
• Oil & Gas Journal Exchange
  "the industry leading energy marketplace for buying and selling of oil and gas producing properties or for converting used oil field or power generation equipment, or surplus assets into cash."
• Oil States Industries
  "a leading designer, manufacturer, and provider of products and engineered solutions for offshore platforms, subsea pipelines, and oil and gas land applications."
• Oil Stop, Inc.
  "engaged in the manufacture and sale of inflatable oil spill containment boom and ancillary oil spill control equipment."
• Oil Well Risk Assessment Data LLC
  
• Oildex Connect
  "Internet-based services simplify financial and operational processes for energy companies, by delivering digital data solutions that improve internal workflow and boost the collaborative success between a company, its partners and suppliers."
• Oilexco Incorporated
  "a Canadian Energy company committed to achieving growth and creating shareholder value through oil and gas exploration in western Canada and the southern United States."
• Oilfield Audit Services, Inc.
  "The Downtime Preventers"
• Oilfield Management, Inc.
  "an independent source of oil and gas consulting services"
• Oilsearch plc [UK]
  "An airborne geophysical company providing services to the offshore oil exploration industry. "
• OilTracers L.L.C.
  "Integrating Oil Geochemistry, Geology and Engineering Data for the Petroleum Industry"
• Omega Technologies
  "We are IT consultants and we can help you in analysing your needs"
• OMNI Energy Services Corp.
  "one of the largest and fasted growing diversified seismic support companies in the U.S., providing an integrated range of services to geophysical and exploration and production companies engaged in the acquisition of 3D on-shore seismic data."
• OMV International
  "OMV intends to maintain its position as the leading oil and gas group in Central and Eastern Europe by fully exploiting its competitive advantages. "
• OPE Inc.
  "Marine Construction & Engineering for the Oil & Gas Industry"
• OPEC
  OPEC design, manufacture and supply products and systems for all types of oil pollution, ranging from small localised spills to large spills on the open sea. This includes controlled spills.
• Oppenheimer Biotechnology, Inc.
  "a privately held corporation ...that specializes in applied microbial technology... the Company cleans up pollution through the application of a proprietary process that includes a consortium of microorganisms, biocatalyst and bionutrients."
• Optimization Petroleum Technologies, Inc. (OPT)
  Software development,"technical and consulting services to clients from the petroleum industry worldwide "
• Oracle Energy Corp.
  "a junior energy company actively engaged in the exploration and development of a suite of premier oil prospects situated on Yemen's Red Sea coast proximate to the Saudi Arabian border. "
• Overload Services, Inc.
  "acquired over 30 years experience in the petrochemical industry in instrumentation, electrical, control systems, database management, database services, INtools sales, training, consulting and technical support. OSI is based in the heart of the petrochemical industry in Houston, Texas with a view of NASA's Johnson Space Center."

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

• Pacrim Energy Limited
  "a Papua New Guinea company"
• Paine Electronics
  "has been recognized as an innovative, quality minded designer and manufacturer of pressure transducer/ and hybrid microelectronics"
• Pall Corporation
  "the World's Filter, Filtration and Separations Corporation."
• Pan Andean
  "a junior exploration and production company producting oil and gas in the U.S. and in Bolivia as well as drilling for oil/gas in Bolivia."
• Pancontinental Oil and Gas NL
• PanTerra Geoconsultants
  "a geoscience consultancy group in the Netherlands providing services to the international Oil and Gas industry."
• Paradigm Consultants
  "a diversified consulting engineering firm that was formed in 1995 to provide professional engineering services in the specialized areas of construction materials engineering and testing, geotechnical engineering, and environmental engineering."
• Paragon Industries, Inc.
  "established in 1987 with the purpose of supplying logistical support equipment for the inshore and offshore oil industry."
• Parallel Petroleum Corporation
  "Our operations focus on the exploration, acquisition, development and production of oil and natural gas in two core areas: the onshore gulf coast area of South Texas and the Permian Basin of West Texas. "
• Parker Drilling Company
  "an international drilling contractor which has operated in 46 nations."
• Pathfinder Energy Services
  "the cost effective alternative for reliable and accurate Directional Drilling, M/LWD and Formation Evaluation Services."
• PAZ
  "a highly integrated concern involved in every aspect of the country's [Israel] petroleum industry, including purchase of crude oil, production of fuels and lubricants, marine and land transportation, bulk storage of refined products, and an extensive country wide petrol stations network."
• Pem-Tech Inc.
  "manufactures quality gas detection equipment used in gas plants, oil refineries, offshore production platforms, and other petrochemical industries."
• Pengrowth Energy Trust
  "the benchmark of energy trusts"
• Penn West Energy Trust
  "the largest conventional oil and natural gas producing income trust in North America."
• Penneco Oil Company
  " provides ongoing leasing, exploration, and drilling operations for gas and oil; and mining operations for coal, limestone, clay and sandstone in Western Pennsylvania, Texas and West Virginia."
• PERA a/s
  Petroleum Engineering Reservoir Analysis
• Perenco
  "a privately owned petroleum, exploration and production Company, operating in Colombia, Gabon, Cameroon, Turkey and USA in partnership with major oil companies and governments."
• Performance Forum
  "vision is to pool knowledge of performance and achievement, and to provide access to accurate data on the historical costs of oil and gas field developments. These performance measures are used to identify and encourage best practice and to optimise cost performance across the whole industry. "
• Performance Improvements (PI) Ltd
  " based in Aberdeen, provide specialist engineering services to the worlds oil, gas, petrochemical and chemical manufacturing industries."
• Petrel Resources
  " focused on oil opportunities in Iraq. It is one of only a handful of European companies with an interest in Iraq and the only English speaking western company. "
• Petro Log, Inc.
  "a leader in state of the art surface logging hardware, software, equipment and staff"
• Petro-Canada
  "one of the largest integrated oil and gas companies in Canada and a significant international player. "
• Petro-Chem Development Co., Inc.
  "offers the refining, petrochemical, offshore and onshore production industries, a unique and extensive line of heat transfer equipment and services."
• Petro-Line Construction Group
  "dedicated to the construction, maintenance, and upgrading of Pipelines and Facilities in the oil and gas industry"
• Petro-Marine Company Inc.
  "Your source for pollution prevention from stormwater runoff and contamination of internal floor drains, as well as a wide array of oil spill control products, oil measurement and sampling equipment, and Portable Electronic Thermometers"
• Petro-Soft Systems Ltd.
  "a Canadian company that develops innovative Reserves Management software. Our Phoenix Reserves Management Suite provides the Oil & Gas producer with a complete corporate view of their assets. "
• Petrobras
• PetroChina
  "The Company is one of the largest companies in China in terms of sales. It is engaged in a broad range of petroleum-related activities"
• PetroConsult [Australia]
  "quality consultancy services in the areas of petroleum exploration and evaluation of upstream oil and gas investments through our experienced geoscience staff with expertise in geology, geophysics, petrophysics and geochemistry. "
• PetroDril
  "a consulting and service company providing professional advisory and consulting services, technical and corporate, to the petroleum and other energy related industries."
• Petrofac
  "an ISO 9001 certified full service engineering, fabrication and construction contractor specializing in the design of hydrocarbon processing plants including refining, gas/oil production, petrochemical and gas processing facilities."
• PetroKazakhstan Inc.
  "a vertically, integrated, international energy company.... engaged in the acquisition, exploration, development and production of oil and gas, refining of oil and the sale of oil and refined products."
• Petrol - Slovene Oil Company
  "the largest oil, gas and petroleum company in Slovenia."
• Petróleos de Venezuela, S.A. (PDVSA)
  "grown to become one of the world's most important energy companies. One of the three largest refiners in the world, its refining and marketing network extends from Venezuela to the United States, the Caribbean, and Europe."
• Petróleos Mexicanos (PEMEX)
• Petroleum Authority of Thailand
  "PTT's fully integrated petroleum activities consist of exploration, production, logistics, transportation, refining, distribution, storage and other petroleum-related industries."
• Petroleum Development Corporation (PDC)
  "a rapidly growing independent oil and gas company ....With drilling and production operations in the Appalachian Basin, Michigan and the Rocky Mountains, 90 percent of PDC’s 2000 production is natural gas. "
• Petroleum Finance company
  "performs a distinctive consulting and advisory role in the international oil and gas industry."
• Petroleum Traders Corporation
  "a wholesale marketer of gasolines, diesel fuels and heating oils throughout the U.S."
• Petrolink Services, Ltd.
  "excels in the rapid transmission of wellsite data from any land or offshore site to any office in the world. These communications may take place over all types of links including dial-up and fixed-link satellites, microwave, radio and regular telephone networks."
• Petron Industires, Inc.
  "designs and manufactures advanced computerized drilling rig instrumentation systems."
• Petronas
  
• Petrophysics, Inc.
  "specializing in relating geological information from well logs to seismic data. Developing advanced synthetic seismogram technology."
• PetroQuest Energy, Inc.
  "an oil and gas exploration and production company primarily focused on growing its reserves and shareholder value through a combination of drilling development locations and high potential exploration prospects along and in the Gulf of Mexico."
• PetroStrategies, Inc.
  "Consulting Research Training"
• PetroStudies Consultants Inc.
  "From Petrophysics to Reservoir Engineering & Simulation"
• Petrotrin -Petroleum Company of Trinidad and Tobago Limited
  "as the national Petroleum Company operates to optimize the returns from its petroleum resources for the benefit of its shareholders and the citizens of Trinidad and Tobago. "
• Petsec Energy Ltd.
  "An Independent oil and gas exploration and production company in the Gulf of Mexico, USA"
• PGL
  "an integrated subsurface consultancy and software developer. Consultancy and training services are provided in geology, geophysics, petrophysics, reservoir and petroleum engineering to Oil and Gas Producers, large and small across the globe."
• Phoenix Geophysics Ltd.
  Geophysical manufacturing and contracting company founded in 1975. World leader in magnetotelluric (MT) and induced polarization (IP) instrumentation used in more than 80 countries for exploration and research.
• Pico Technology Limited
  "a leader in the field of virtual instruments for data acquisition "
• Pinnacle Technologies
  "is an energy industry engineering service and consulting firm specializing in the optimization of hydraulic fracturing."
• Pioneer Oil & Gas
• Pipeline Engineering
  "pigging and isolation resource centre"
• Pipeline Roller Systems
  " We manufacture a complete line of Pipe Conveyor Systems, Directional Drilling & River Crossing Systems."
• Pipeline Supply and Service Company, Inc.
  "Houston, Texas based supplier of pipeline supplies and equipment"
• Pipeline Technologies Inc
  "specialists at moving gas"
• PIRA Energy Group
  " a world reknowned energy consultancy/thinktank" [formerly known as Petroleum Industry Research Associates]
• PKN ORLEN
  "the largest manufacturer and distributor of fuel in Poland. "
• Platt, Sparks & Associates Consulting Petroleum Engineers, Inc.
  "a full service consulting petroleum engineering firm... ready to assist you on your projects requiring petroleum engineering expertise."
• Platts
  "the energy information and market services unit of The McGraw-Hill Companies, is the world's largest and most trusted provider of news, analysis and price discovery for the oil, natural gas, petrochemical, coal, electricity, nuclear power, shipping, metals and bandwidth industries."
• Power Flow International Sales
  "We are the export distributor for a broad line of oil field equipment. Gas Engines, Pumps, Wellhead Equipment, Downhole pumps, sucker rods, air compressors, valves and controls - we handle the equipment you need."
• Power Seal Pipeline Products Corporation
• PQ Corporation
  "one of the world’s most successful developers and producers of inorganic chemicals and performance particles"
• Praad Geotechnical, Inc.
  "offers a wide variety of professional services in the field of Geotechnical Engineering. We provide consultation, expert guidance, and investigations involving geotechnical issues."
• Practical Sales & Service
  "Serving industry & oilfield since 1949... buys and sells new and used electrical, mechanical, and hydraulic equipment. Our specialty is in pumps in a wide range of sizes and styles. "
• Prairie Pacific Energy Corporation
  "a profitable independent North American resource company with oil and gas producing, processing and environmental services properties in Alberta and British Columbia, Canada, and California, Montana and North Dakota in the United States."
• Prairielands Energy Marketing
• Precision Drilling Corporation
  "the premier provider of land drilling services and the top integrated oilfield and industrial service contractor in Canada, servicing oil and gas exploration and production companies in western Canada and abroad. "
• Predator Technologies LLC
  The Premier Directional Drilling Team
• Premier Oil Plc.
  "Our objective is to the leading Asian independent explorer, developer and producer of gas and oil."
• Prentice Training
  "a petroleum training and consulting firm specializing in and dedicated to offering the finest and most comprehensive short courses in the drilling industry. "
• Pressure Sciences Incorporated
  "offers innovative mechanical engineering problem solving capability. Our focus is on the safety of pressure retaining components, and we provide comprehensive design and analytical services for Pressure Vessels, Storage Tanks, High Energy Piping, Pressure Equipment and related components.
• Pride International, Inc.
  "one of the world's largest drilling contractors. "
• Primeline Energy Holdings Inc.
  "a publicly listed company focused exclusively on oil & gas exploration and upstream opportunities in China."
• Process Engineering Associates, LLC
  "formed in January 1996 to provide process engineering services to the petroleum refining, chemical production, and waste processing industries."
• ProData Online
  "dedicated to providing a data collection system that provides accurate and up-to-the-minute production data “from the Wellsite to the Website” while providing our clients with the best in customer support and training."
• Production Gathering Company, L.L.C. (PGC)
  "a gatherer, marketer and producer of natural gas and natural gas liquids."
• Progress Energy Ltd.
  "an exploration and production company with a primary focus in four core areas: southeastern Saskatchewan and Manitoba,west central Alberta (Two Creek and Whitecourt),and northeastern British Columbia (Milo). "
• Project Consulting Services, Inc.
  "Connecting our worlds of energy"
• Project Partner
  "comes from Denmark.... Project Partner Hong Kong Ltd is responsible for our business in Asia and China. We offer high quality technical service for expatriate owners who build ships and offshore units, and help our clients attain outstanding goals in China. "
• PSI (Professional Service Industries, Inc.)
  "provides geotechnical engineering, construction materials testing, environmental consulting and facilities engineering services for clients involved with site selection, design, construction and property management."
• PTS Labs
  "offers a full range of core analysis and related services. "
• PURGIT Emission Controls, Inc.
  "from Hilliard Emission Controls, an innovative technique for removing and controlling vapor emissions when tanks are cleaned. It reduces VOC's (volatile organic compounds) released to the atmosphere during tank cleaning. PURGIT emission control system is so unique it is patented."
• Purolator Facet, Inc.
  "a name synonymous with quality filtration throughout the world. "

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]