Ryder Scott Company Petroleum Consultants - Reservoir appraisal, field development planning and exploration projects. Offices in Houston and Calgary. TDL International, Inc. - Petrophysical consultant. Based in Forney, Texas. Gaffney, Cline and Associates - Services include international reservoir appraisal, field development planning and exploration projects. Principal offices in UK, USA and Singapore. Cawley, Gillespie and Associates, Inc. - Provides petroleum engineering services such as reservoir appraisal, field development planning and litigation. Located in Fort Worth and Houston Texas. Computer Modelling Group Ltd. - Sells and provides support for reservoir simulation software worldwide. Offices in North and South America, Europe and China. DeGolyer and MacNaughton - Offers international reservoir appraisal, field development planning services. Based in Dallas, Texas. Garb Grubbs Harris and Associates, Inc. - Provides international reservoir appraisal and field development planning services. Based in Dallas, Texas. James E. Smith and Associates, Inc. - Reservoir appraisal, field development planning. Based in Tyler, Texas. 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. PetroStudies Consultants Inc. - Reservoir appraisal, field development planning, software development. Located in Calgary, Canada. Sproule Associates Limited - Reservoir appraisal, field development planning, training and exploration projects. Corporate headquarters in Calgary, Canada. Offices in Houston and Denver. William M. Cobb and Associates, Inc. - Reservoir appraisal and management, field development planning, training, litigation and exploration projects. Based in Dallas, Texas. Platt, Sparks and Associates Consulting Petroleum Engineers, Inc. - Reservoir appraisal, field development planning, litigation. Austin and Midland, Texas. International Reservoir Technologies, Inc. - Worldwide petroleum reservoir management consulting services, including fully integrated reservoir studies. Based in Lakewood, Colorado. J L Wilson and Associates, Inc. - Integrated petroleum reservoir evaluations for enhanced oil recovery. Generate and evaluate petroleum prospects. Gary S. Swindell and Associates - Services include oil and gas consulting, reservoir engineering and reserve studies. Offers oil industry data, coalbed methane and Texas secondary recovery database. Located in Dallas, Texas. Subsurface Computer Modeling, Inc. - Reservoir studies, including engineering, geology and geophysics. Offices in Texas and UK. Core Laboratories - Provides petroleum reservoir description data and production management field services for recovery optimization. A manufacturer of reservoir rock and fluid analysis instrumentation. Calvin Resources Incorporated - Performs field studies, reservoir characterization, due diligence and exploration evaluations. Involved in exploration in East Texas Salt Basin. Roxar - Offers integrated field development and reservoir management solutions. Reservoir modeling and simulation software and services. Downhole flow measurement and reservoir monitoring systems. Ireservoir.com - Services include characterization, modeling, simulation, evaluation and management of reservoirs by combining geological, geophysical and petrophysical analysis. Straus Engineering Ltd. - Tactical management of production, reservoir studies, regulatory applications. Based in Alberta, Canada. Argonauta Energy LLC - Worldwide reservoir, geological and facility consulting services. Specializing in deepwater asset evaluation and development planning. Field Development Consultants - Provides geology, geophysics, reservoir engineering, production engineering, and drilling engineering consulting services. Ralph E. Davis Associates, Inc. - Reservoir engineering and geological services to the petroleum industry. Welltest Specialists - Advanced well testing analysis, quality control, operational audits, technical audits and other reservoir engineering work for clients in North America, Australia and New Zealand. Serafim Ltd. - A consultancy and software company specialising in using mathematics to solve problems in oilfield development optimisation, reservoir engineering and other areas. Netherland, Sewell and Associates, Inc. - Field studies, oil and gas reserve certifications, economic evaluations, and operations management. Integrated geology, geophysics, petrophysics and engineering. Blackwatch Petroleum Services Limited - International reservoir engineering, petrophysics, asset evaluation, well operations, well testing, and well engineering. Russia, Middle East,Europe. Gleason Engineering - Evaluation and appraisal of oil and gas reserves from producing and non-producing oil properties. Knowledge Reservoir - Reservoir studies and surface transportation systems analysis. Information management expertise integrates consultant's work with client's staff and data resources. C&C Reservoirs - Maintains a database of reservoir studies and digital field analogs. Includes an online demo for subscribers and a description of workflow and methodology. Orlando Mendoza - Resume and CV, MsC in reservoir geoscience and engineering, 2006. Acorn Petroleum Services - Expertise and experience in reservoir simulation and optimization of field development. Geo Visual Systems Ltd - Developer of geological modelling, well log correlation, 3D visualisation software for the oil exploration industry. New Zealand.