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"

PaleoSource
"offers consulting services in foram, nannofossil, and palynologic biostratigraphy. Products include depositional environments, paleoecology, and high resolution seismic stratigraphy for reservoir delineation."

Pall Corporation
"the World's Filter, Filtration and Separations Corporation."

Pan Andea
"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."

Pauley Geoconsultants Ltd.
"provides geology consulting to the international petroleum and related industries, specialising in sedimentology, petrography and diagenesis, with extensive experience of turbidite reservoirs."

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."

Pearl Oil
"will focus on the exploration and development of oil and natural gas resources in South-East Asia. The Principals established PEARL to operate independently and in recognition of the absence of a vehicle that is focused purely on oil and gas opportunities in South-East Asia."

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"

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."

Perez Companc S.A.
"a group of companies mainly engaged in the energy sector.... exploration and exploitation of oil and gas fields, as well as in the petrochemical sector."

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 Data Source, Inc.
"The Online Source for Oil and Gas Well Production Data for the Petroleum Industry"

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"

Petroclean Environmental Service Contractor
"Your Environmental Contracting Resource"

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."

PetroDynamics, Inc.
"providing expertise in:Sequence Stratigraphic Interpretation of Well Logs, Outcrop and Seismic Data; Basin Modelling and Source Rock Prediction; Structural Interpretation of Well Logs, Outcrop and Seismic Data ; Software Solutions."

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 & Refractory, Inc.
"established in 1990 to provide certain highly specialized inspection and consulting for the petro-chemical industry."

Petroleum Authority of Mongolia

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 Economics Limited [PEL]
" a global energy economics consultancy serving the oil and gas industries."

Petroleum Finance company
"performs a distinctive consulting and advisory role in the international oil and gas industry."

Petroleum Revenue Services
"Providing oil & gas contract compliance through joint venture audits and reviews for investors, operators, non-operators & royalty owners since 1984. "

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."

Petromin Resources, Ltd.
"diversified in petroleum and mining exploration and production"

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."

PetroSen
"State Oil Company of Senegal"

PetroStrategies
"To help Petroleum Marketers improve their business and strengthen their market position within the industry... we provide education and consulting services that are driven by marketer needs. "

PetroStudies Consultants Inc.
"From Petrophysics to Reservoir Engineering & Simulation"

Petrotech Knowledge
"offers specialized fluid sampling, on-site analysis, metering and interpretation services dedicated to Reservoir and Process Engineering requirements."

Petrotech Services
searchable database for locating petroleum related personnel, equipment,and services

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."

Pico Technology Limited
"a leader in the field of virtual instruments for data acquisition "

Pinnacle Oilfield Services, Inc.
"the Pinnacle Points' helping you reach peak performance."

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 Chokes, L.P.
"The latest in choke technology"

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. "

Precision Sampling Incorporated
"provides the environmental industry with innovative direct-push sampling services for site characterization and contaminant remediation."

Precision Tube Technology
"dedicated to one thing - the production of the finest grades of downhole tubing and coiled linepipe in the world."

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 premier drilling contractors. "

Prima Energy Corporation
"an independent oil and gas company engaged in the exploration for, acquisition, development and production of, crude oil and natural gas. Through its wholly owned subsidiaries... engaged in oil and gas property operations, oilfield services and natural gas gathering, marketing and trading"

Primeline Energy Holdings Inc.
"a publicly listed company focused exclusively on oil & gas exploration and upstream opportunities in China."

PrimeWest Energy Trust
"a Calgary-based conventional oil and gas royalty trust actively managed for the benefit of unitholders"

Priority Projects Ltd.
new and used oil and gas production equipment.

Prize Energy Corp.,
"a mid-size independent oil and gas company located in the Dallas, Texas area. "

Process Associates of America
" a confederation of top, US based, engineering, management and computer applications consultants.... engineering consultants possess technical capabilities that span all the technologies encountered in today's modern refineries and petrochemical plants."

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 Enhancement Corporation
"a Pencor group of companies.......offering services, products and technology to enhance your production of oil, gas, chemical and related derivatives."

Production Gathering Company, L.L.C. (PGC)
"a gatherer, marketer and producer of natural gas and natural gas liquids."

Professional Petroleum Services
"available to review and/or audit of geological, engineering or economic studies of oilfield projects."

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. "

Promarine
"a fully integrated marine and subsea consultancy company based in Aberdeen, Scotland, with offices in Peterhead, Great Yarmouth, and Stavanger. Promarine provides a total capability for Marine and Underwater activities to Client organisations, providing expert and innovative solutions and services."

Promore
"a Core Lab ...division, is a technology company providing cost effective solutions to real-time well monitoring systems, which are critical to the successful implementation of Reservoir Management, Production Optimization and Enhanced Oil Recovery projects. "

ProTechnics
"a Core Lab...division, is dedicated to providing the energy industry with state-of-the-art completion diagnostic services designed to maximize oil recovery and to enhance production. "

Prudential Steel Ltd.
"committed to becoming the premier supplier of tubular products in North America"

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. "