• David Fox Associates
  "an upstream petroleum consultancy.  We can demonstrate an extensive track record of adding value to international upstream petroleum projects at every phase of their life cycle.
• Decisioneering
  "The leading provider of risk analysis software and solutions"
• Digital Formation, Inc.
  "the premier graphical solution and professional consultation provider for the E&P industry."
• Divestco.com Inc.
  "a privately held Calgary based software, web services, Oil & Gas data, and seismic services company which specializes in Oil & Gas mapping and data retrieval, seismic interpretation, mineral rights divestment, and seismic data services."
• DPTS
  "the foremost specialists in all aspects of oil and gas exploration data management. "
• Drilling Software.com
  "The Drilling Software series of programs are dedicated to helping the man on the rig to get on with his job. Whether you are a drilling consultant, rig supervisor, rig manager, toolpusher or driller. These programs were all developed on drilling rigs and workover rigs by a drilling consultant. "
• Drilling Software US
  offers unique Excel based Oilfield Industry Software. Our drilling software programs, have been written and designed by a working Drilling Fluids Specialist (Mud Engineer) that holds a masters degree in engineering. All of our drilling software programs are written in Microsoft Excel for use by Mud Engineers, Drilling Consultants, Drilling Engineers, and Toolpushers working in the oilfield industry.
• Dynamic Graphics, Inc.
  "a software development company offering EarthVision¨, a family of integrated software used for geospatial visualization and analysis. EarthVision is used by professionals from a number of different disciplines and industries for a variety of applications. "

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• Eagle Information Mapping
  EIM provides clients worldwide with high-quality, integrated solutions supporting their strategic business objectives based on Geographic Information Systems (GIS) and related technologies.
• EarthFX
  "Earth Science Information systems"
• EDCON-PRJ, Inc.
  "Experienced in gravity and magnetic data acquisition, processing, interpretation and quality assurance. Specializing in land, marine and airborne gravity and magnetics, borehole gravity and microgravity for the environmental, engineering and energy exploration industries."
• Encom Technology
  "Develops GIS and geophysical software applications, provides advanced consulting services and operates the GPinfo petroleum tenement exploration information service."
• Energy Solutions International
  "the only provider of integrated technical and commercial solutions for both gas and liquids pipeline management."
• Enertia
  "provides comprehensive integration for well production, accounting, land & contracts, and imaging. "
• Engineered Software, Inc.
  "Developers of integrated software used to design, analyze, and troubleshoot new or existing fluid piping systems. The program calculates the pressures and flow rates and shows the interaction between pumps, components, pipelines, controls, tanks and vessels."
• EnSys Energy & Systems, Inc.
  "provides tailored consulting services and software technologies to the international petroleum industry."
• Ensyte Energy Software
  from the reservoir sand face to the burner tip--
• Environmental Research Software
  "Mineql+ chemical equilibrium modeling system for water chemistry calculations, chemical speciation, titration curves, ion balance, aquatic chemistry, mineral equilibria, solubility diagrams, pH calculations, redox (oxidation reduction), corrosion calculations, geochemistry, environmental chemistry, soil chemistry, ion adsorption, logC-pH diagrams, thermodynamic calculations in aqueous systems and much more."
• EPCON International
  "the world leader in combining advanced process engineering software with the most update and concise physical property databases."
• Epoch Well Services, Inc.
  "a leading provider of wellsite information services. We seek to maximize customer satisfaction and create value-added solutions by providing superior products and services. "
• Eric Geoscience, Inc
  "Probabilistic Data Analysis for the Petroleum Industry: Well Logs, Core Data, Seismic"
• ESRI
  GIS and mapping software
• Exa Corporation
  "designs, develops, and markets advanced computer-aided engineering tools for simulating and analyzing fluid flow."
• Exigent Information Solutions, LLC
  "formed in November 1997 with the purpose of providing custom solutions to information system problems of small to medium sized companies. "
• Explorer Software Solutions, Ltd.
  "The leading supplier of Property Management Software for the Oil And Gas Industry"
• Exprodat
  "committed to providing high quality information management consulting and software development services to the upstream oil industry"

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• ffA Services
  "developed C_Images 3D, true 3D software, in conjunction with Shell International Exploration and Production (SIEP). C_Images 3D is being used for Seismic Interpretation, Attribute Analysis etc. in 3D. FFA also produce C_Images and PC_Image, software for image processing and analysis."
• FieldWorker
  "affordable data collection software."
• Fine Ltd.
  "Offering the most comprehensive and integrated suite of software products for civil engineers....GEO is a set of the geotechnical programs that are also available separately. It provides solutions to a number of geotechnical design tasks using both finite element and analytical methods."
• Flare Solutions Limited
  " provides information management consulting, services and software products to the energy business."
• Flite Software Ltd.
  " recognised world wide as a quality supplier of engineering application and selection software products. The company has specialised products for solving fluid flow design problems and has developed a state of the art component-based technology for developing fluid equipment selection and configuration products."
• FMC Technologies
  " the largest supplier of sub-sea production systems. As part of the product and service portfolio, real time services based on FlowManager™ Real Time Multiphase Metering, Optimization, Production Choke Advice and Flow Assurance Advice modules."
• Fugro-Jason
  "the world's leading and fastest growing company in quantitative reservoir characterization."

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• GAEA: Geoscience and Engineering Applications
  Borehole and Testpit Log Plotting Software, Contaminant Transport Software, and Multi-Media Pollutant Release Inventory Software
• GCTS: Geotechnical Consulting and Testing Systems
  "Computer-controlled laboratory and in-situ testing systems for soil, rock, and construction materials. Easy to use Graphical User Interface software... Economical Upgrades of existing equipment to a Computer-Aided Geotechnical Testing System"
• Gemini Solutions, Inc., (GSI)
  "an independent Petroleum Engineering Software and Consulting company headquartered in Houston, Texas, with a field office in New Orleans, Louisiana."
• Genetek Earth Research
  "Integrated Seismic Analysis and Mapping Software on Digital Equipment's Alpha AXP Workstations!"
• geo&soft international
  "specialises in Geosciences and Environmental Engineering, and supplies user-friendly products with a high level of performance."
• Geo-Slope International
  " dedicated exclusively to developing and marketing geotechnical software since 1977. We have grown to become the largest developer of geotechnical modelling software worldwide"
• GeoDigital Information LLC
  "an innovative database organization providing digital products and services to the oil and gas industry. "
• Geodynamic Solutions, Inc.
  "specializes in geographic information system (GIS) applications and related services for the petroleum industry."
• GeoFields, Inc.
  "provides leading data management solutions aligned to meet the unique data integration, analysis and regulatory requirements of the oil and gas pipeline industry. Services include asset data management, risk assessment and integrity data management, project data management and pipeline database development."
• Geoglobal
  "an International Consulting and Software Sales Corporation." Free Subsurface Interpretation Software. Demonstration package of SAMUEL 2D/3D Seismic Interpretation software. Demo includes 2D demo license, 4 seismic lines (subset by SAMUEL from the STRATTON 3D dataset), well locations, formation tops, VSP, etc.
• GeoGraphix, Inc.
  "A provider of integrated geoscience, petrophysical, engineering, and land solutions for the PC desktop."
• GeoLine - Consulting Geotechnical and Pipeline Engineers
  "independent engineering consultancy company located in Denmark....We provide professional consultancy advice for the planning, design and supervision of geotechnical, pipeline and software engineering projects."
• geoLOGIC systems, ltd.
  "the most complete, integrated data and tool set for the Oil and Gas exploration professional, geoSCOUT for Windows™."
• Geologix Limited
  "develops and supports the GEO Software Suite of applications, used worldwide by geoscientists and engineers involved in oil & gas exploration and development.
• GeoMechanics International, Inc.
  "offering a wide range of geomechanical, petrophysical and wellbore imaging services to clients in the Oil and Gas, Geothermal, Environmental and Geotechnical industries."
• Geomodeling Technology Corp
  "a global leader in providing software solutions to integrated seismic attribute generation, visualization, calibration, classification, and sub-seismic heterogeneity modeling. "
• Georex Assistance Technique S.A.
  "offers to the oil industry several services that respond to the main steps of exploration and development projects, more specifically in the following areas : site supervision and data acquisition ; data structuring and data management; data exploitation; data reconstruction in industrial formats"
• Geosoft Inc.
  software for earth science mapping and exploration
• Geostatistical Software for PC
  "geostatistical software used for teaching at the Institute of Mineralogy, University Lausanne, Switzerland. Those software can be used freely, however, their authors must be properly acknowledged...."
• Geotechnical and Geoenvironmental Software Directory
  "catalogues 1240 programs in the fields of Geotechnical Engineering, Soil Mechanics, Rock Mechanics, Engineering Geology, Foundation Engineering, Hydrogeology, Geoenvironmental Engineering, Environmental Engineering, Data Analysis and Data Visualisation"
• Geotools Software Solutions
  A Division of AOA Geophysics, Inc., home of GravMaster^TM and GravModeler^TM
• Geotrace Technologies, Inc.
  "a technical leader in seismic data processing, synthetics, stratigraphic modeling, and exploration data services."
• Geovariances
  "Provide our customers with unequaled software products integrated within their in-house environment." Partners with Sun Microsystems, and Institut Francais du Petrole."
• GeoVisual
  "established in 1986 to develop and market 3D modelling and visualisation software in the oil exploration industry. "
• gINT software
  "provides the industry's most popular geoenvironmental and geotechnical software for fully customizable borehole/boring and well logs, fence diagrams, geotechnical testing and other professional engineering reports."
• GMS/WMS/SMS
  Groundwater Modeling System/Watershed Modeling System/Surface-water Modeling System
• GS Software Inc. "Practical geotechnical solutions"
• Gulf Publishing Software
  applications designed for engineers in the energy industry.
• GX Technology
  " the leading provider of a comprehensive range of advanced seismic imaging solutions, centered especially on prestack depth imaging. Our superior images of the subsurface are key to reducing the costs and risks of oil and gas companies engaged in exploration and production

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