E2 Business Services Inc.
" Your total solution well-head partner"

E & E Services
"Manufacturer of oil tools & replacement parts for the well servicing industry such as oil saver & oil saver pumps etc. Custom machining is also available."

e-Petroleum Services.com
"EPS provides 'best-in-class' petroleum engineering software, IT integration skills, petroleum engineering services and training to achieve breakthroughs in performance and increased value in upstream oil and gas assets."

Eadie Group
"heavy oil processing/used oil recycling technology"

Earth Dynamics
"Engineering geophysics, vibration and noise monitoring, and rock mechanics"

Earth Satellite Corporation (EarthSat)
"a leader in the application of remotely sensed data for the exploration, development, and management of the Earth's resources"

Earthview Associates
"provides worldwide consulting and training in geology, geophysics, and biostratigraphy. The company's toolkit is used to open new plays, analyze sweetspots at the field and basin scales, evaluate acquisitions, and figure out unusual geology."

Eaton Industries of Houston, Inc.
"a comprehensive energy development firm, with a balanced team of professionals providing experienced management of energy investments, energy exploration, production and storage."

Echometer Company
"the leading supplier of instruments, software and training to analyze and optimize the performance of oil, gas and water wells throughout the world. All of the instruments and sensors are used at the surface of the well and are easily portable. "

ECOPETROL, Empresa Colombiana de Petróleos
"oil and gas company from Colombia South America"

EDCON Worldwide Gravity & Magnetics
"We perform effective G & M surveys and deliver high-quality geologic information that help you save money in exploration and production by reaching sound geologic decisions."

EDG - The Engineering Development Group, Inc.
"provides full professional engineering, project management and construction services to clients worldwide in the oil & gas, chemical and refinery industries."

Edge Petroleum Corporation
" Houston-based independent energy company with a focus on natural gas exploration, emphasizing the integrated application of advanced 3-D seismic data integration and visualization techniques. Edge operates onshore along the Gulf Coast of the United States."

Edinburgh Petroleum Services Inc.
" provides 'best-in-class' petroleum engineering software, IT integration skills, petroleum engineering services and training to achieve breakthroughs in performance and increased value in upstream oil and gas assets. "

Egep Consultores S.A.
"Sub-surface and Surface Engineering, Improvement of Reservoir Exploitation,Technical Assistance: Reservoir, Geology, Geophysics, Petrophysics Conceptual Design - Delegated Management, Operation of Oil and Gas Fields"

EGIS, Ltd., Expro Group Integrated Services, Limited
"provide(s) Project Management and Well Engineering Solutions to the Oil & Gas Industry."

Elmar: a Varco Company
"The world's leading manufacturer of wireline equipment, perforating hardware and casing services "

Elastec/American Marine
"Manufacturers of environmental products, including a range of skimmers, boom, fire boom, incinerators, fumigation tarps, vacuum systems, portable tanks, boats/pumps, and oil spill related equipment."

Elder Tools International
"a USA provider of downhole tools with a 'world class' reputation for its products, its prices and its unbeatable customer service."

Elohi Geophysics, Inc.
"new approach to sources, sensors, data processing and interpretation. was formed to develop and bring to market the tools and techniques required for shallow investigations."

eLynx Technologies
"provides real-time data collection, production reporting, monitoring and control - via the internet - for the oil and gas industry. "

Emerald Energy Plc
" a United Kingdom based company engaged in exploration and production of hydrocarbons in Colombia, the exploration for hydrocarbons in Argentina and Denmark and the development and production of oil and gas from leases in the Appalachian basin in the United States of America."

EMK3 Energy Marketing
"the first online energy marketplace offering domestic buyers and sellers of oil and natural gas the ability to electronically purchase and sell production at the earliest possible point in the supply chain: at the well. "

Empire Energy Corporation
"international exploration and production"

Empire Oil & Gas NL
"an independent company that specialises in providing low-cost surveys, inspections and maintenance services for pipeline systems."

EMSI (Equipment & Meter Services Inc.) Online
"Sales and Service of Liquid Handling Equipment to the Petroleum, Chemical, Water & LPG Industries"

Enbridge Inc.
"We will go beyond all others to deliver energy and related services to North American and international customers."

EnCana Corporation "one of the world's largest independent oil and gas companies driven to be the industry's best-of-class benchmark in production cost, per-share growth and value creation."

Endeco International
"established in 1985 in Calgary, Canada to provide consulting services to clients in the oil refining and hydrocarbon processing industries."

Energen Corporation
"a diversified energy company involved in natural gas distribution and oil and gas exploration & production."

The Energists
"a management consulting firm specializing in executive search within the energy industry. "

Energy Equity Corporation Ltd.
"a major participant in the strategic development of power and energy resources in Australia, Indonesia and India."

Energy Exploration Technologies, LLC.
"Developing Natural Gas Reserves"

Energy Research Company
"an industrial R&D and consulting company specializing in energy intensive and emissions related technologies and industries"

Energy Resources Development Ltd.
"a petroleum industry service company incorporated in Pakistan. ERD provides geoscience experts with the requisite experience and skills in the exploration and production of hydrocarbons for undertaking geological and development studies."

Energy Service Investment Corporation
"a full range of contract services for both major and independent energy producers....Gas Processing Plants, Compression and Pipelines; Oil and Gas Wells; Investments and Marketing; and Accounting."

Enerplus Group
"Canada's largest and most experienced Royalty Trust Fund Manager specializing in the acquisition, development and exploitation of proven, producing oil and gas properties in Western Canada."

Engineering Partners International (EPI)
"dedicated team of multi-state, licensed Professional Engineers and diversified expert consultants. We continue to offer a growing selection of engineering and forensic services to law firms, insurance companies, and public and private sectors of industry. "

Engineering Seismology Group [ESG]
"a world leader in microseismic monitoring. "

Enron

ENSCO International, Inc.
"one of the largest offshore drilling contractors in the world"

Enterprise Products Partners, L.P.
"leading independent gatherer and transporter of natural gas and oil"

Entrac Petroleum Training & Consulting
"Contact us for all your training needs in drilling, casing design, well planning, reservoir engineering and geology. "

Enventure Global Technology
" setting the standard for Solid Expandable Tubular (SETâ„¢) Solutions for the well construction industry. "

Enviance
" provides leading systems and services to industry and government for environmental data management. "

Enviro-Logical Solutions (ELS)
"Providing tomorrow's solutions, Today"

Environmental & Foundation Drilling, Inc.
"growing and serving the needs of the engineering and construction professional for over nine years."

Environmental BioTechnologies, Inc.
"(EBT) is focused on providing biological based products, processes, and services for use in industrial and environmental applications. A core expertise in microbial physiology and applied microbiology allows EBT to support a range of services for industrial, environmental, and consumer markets. "

Environmental Mechanics AB
"has been developing various data acquisition systems since 1985. Our main focus has been on equipment for MWD, Measuring While Drilling."

EOG Resources, Inc
"striving to become simply the best independent exploration and production company "

EOSYS
"main goal is to supply its customers - usually engineering departments in industrial corporations - with 3D descriptions of the underground as accurate as possible and to make them aware of existing uncertainties. "

EP Tech
"The Fracture Modeling Experts "

Epic Consulting Services Ltd
"a reservoir engineering consulting firm actively engaged in serving the oil and gas industry, domestically and internationally. Epic specializes in all aspects of reservoir engineering and simulation. "

EPL Energy Partners Ltd.
"an independent oil and natural gas exploration and production company based in New Orleans, Louisiana."

eProduction Solutions
"mission is to be the leading provider of well controlled solutions and integrated decision management solutions designed to enhance oil and gas production. We will accomplish our mission by providing integrated solutions that include a comprehensive set of products, services, and technologies that when combined help our customers effectively optimize production."

Equipoise Solutions Limited
"focussed on the geology and geophysics of reservoir definition, for both exploration and development."

Equity Oil Company
"a growth-oriented, independent exploration and development company."

Esprit Exploration Ltd. "an independant Canadian oil and gas exploration and production company "

Essar Oil
"[our]mission is to be a fully integrated oil company involved right from oil exploration to the downstream sectors of marketing oil products and petrochemicals. "

ESSO

ESTec Oilfield Inc.
"manufactures a 150 ton top drive designed specifically to fit into a double rig without modification."

Eurogas Corporation
"an independent oil and gas company engaged in exploration, development, production and acquisition activities in Tunisia, Spain, Russia and Canada. "

Excel Engineering
"a consulting engineering company with highly experienced professionals specialized in upstream oil and gas related facilities design. Excel provides a full range of engineering, procurement and project management services for both offshore and onshore projects worldwide. "

Exco Resources Inc.

Exploration Consultants Limited, [ECL]
"provides a complete geoscience consultancy for the resource industries. "

EXPLORTECH
"can help your company find and develop more oil and gas with their experience in the integrated application of emerging 3C and enhanced AVO technology."

Expro Group
"a leading international oilfield services company that surveys and manages oil and gas wells, from exploration through to development and production."

• Expro Completion Products
  

Exxon Mobil Corporation
"Formed by the combination of two high-caliber organizations, Exxon and Mobil, the company is an industry leader in almost every aspect of the energy and petrochemical business."