S & B Group of Companies
"provides a full scope of services from feasibility studies to engineering, procurement, construction and project management consulting to the refining, petrochemical, chemical and polymer processing industries, as well as government and public works projects."

Saab Marine Electronics
"a pioneer in introducing radar techniques for level gauging."

Saaya Inc.
"supplies and exports drilling equipment for oil field, geothermal, hot spring wells and water wells to overseas customers, mainly in Japan. "

Sabeus Sensor Systems
"provide robust fiber optic systems for use in oilfield reservoir management and seismic exploration."

Safety Boss
"a recognized international leader in a dangerous profession--and one of handful of senior companies delivering wild well control services around the globe."

Safety Construction Inc.
"provides Barge and Tug Services to the Oil & Gas Offshore Industry. We are operators and charterers of Offshore Barges, including accommodation units, Deck barges, Pipelay, Launch Barges, pontoons, incl submersibles for Dry Docking Rigs and Offshore platforms, Tugs and Offshore Service vessels, located in world wide positions. "

Saint-Gobain Crystals-Houston
"a global leader in the manufacture and development of engineered materials such as glass, insulation, reinforcements, containers, building materials, ceramics and plastics."

Salisbury & Associates, Inc.   
"Geotech Drilling at its Best! Specializing in Difficult Access Bore Holes"

Sanjel
"a specialized energy service company"

Saybolt
"a world leader in the characterization and measurement of reservoir fluids, specializing in crude oil and its derived products from reservoir to end-user. "

Scandpower AS
"a privately owned international consulting company"

Scherman Energy Group
"a California based corporation that participates in multiple professional ventures including consulting for the oil and gas industry. "

Schinelli Consulting [Italy]
"Geology, geotechnics, environment, applied geophysics, non destructive testing on foundations and structures" Offering a wide range of geophysical services. Seismic refraction, seismic reflection, georadar, electromagnetic surveys, gravimetry. geophysical techniques."

Schlumberger Information Server
"Schlumberger is an international technical company selling products and services that improve the productivity of our customers. Schlumberger is a worldwide leader in Oilfield Services, Measurement & Systems, and telecommunications with operations in over 100 countries and 51,000 employees. Revenues exceed $7.6 billion."

Schnabel Engineering
"major service areas include not only geotechnical engineering, but environmental, water resources, geosciences, materials engineering, construction monitoring and advanced structural analysis. These services are provided regionally, nationally and overseas."

Science Applications International Corporation (SAIC)
"actively apply geophysical methods to resolve environmental, hydrologic, mining, and engineering problems. "

Scientific Drilling
"at the cutting edge of survey technology and is the only company to offer a complete range of survey services form the simplest of single shots to the most advanced continuous high accuracy inertial systems."

The Scotia Group, Inc.
"Domestic and International Oil and Gas Advisory Services"

Scorpion Oil Tools

SDS Digger Tools Pty Ltd
"SDS Down Hole Fluid Hammer Drill for drilling oil & gas wells. "

Seacor Smit Inc.
"and its affiliates operate one of the world's largest fleets of diversified marine support vessels primarily dedicated to supporting offshore oil and gas exploration and development in the US Gulf of Mexico, offshore West Africa, the North Sea, Mexico, the Far East and Latin America. "

Seidlitz Engineering Ltd.
" a consulting engineering company that provides complete facility and production engineering services to companies in the Oil & Gas industry"

Seismic Consultants Group Pty. Ltd. (SCG)
"provides specialist services in seismic survey project management and seismic "

Seismic Exchange, Inc. (SEI)
"a full service 2D and 3D seismic data marketing firm "

SeismicDocs
"your Online PROFESSIONAL geophysical consulting service"

Seistronix Exploration Seismographs
"a manufacturer of exploration seismographs and related geophysical equipment for small to medium sized oil, gas, mineral and geotechnical surveys. Our systems are used for subsurface imaging using refraction, reflection ..."

Sensors Research Consulting, Inc.

Servipetrol
"established in 1981 to provide petroleum consulting services and training to companies around the world."

Setac Chemical Corporation
" a manufacturing and marketing company primarily providing oil and gas well drilling fluid additives."

SEVMORNEFTEGEOFIZIKA (SMNG)
"the largest offshore geophysical company in Russia"

ShawCor Ltd.
"a growth-oriented energy services company focusing on technology-based products and services for exploration and production, pipeline, and petrochemical and industrial markets worldwide."

Shell Oil Company

• Malampaya Deep Water Gas to Power Project
  

• Shell Australia

• Shell Brasil, S. A.

• Deutsche Shell

• Shell Hong Kong

• Shell Iceland

• Shell Malaysia

• Shell Netherlands

• Shell in Nigeria

• Shell Norway, A.S.

• Shell Pipeline Company, LP

• Shell Switzerland

• Shell U.S.A.

Sigma Engineering Corp
"focus is the evaluation, design and execution of drilling and completion operations, onshore and offshore, both domestic and international, for projects involving vertical, directional, horizontal or underbalanced operations. "

Sigma Oilfield Consulting Pty. Ltd.
"the well testing specialists from Perth (Australia)"

Smith Bits
"Providing the customer with a single source drill bit solution"

Smith International, Inc
"a world leader in drilling tools and services"

Soco International Plc
"We are an international oil and gas exploration and production company headquartered in London and listed on the London Stock Exchange."

Sogapro Engineering Ltd.
"specializes in Sour Gas Project Engineering worldwide."

Solar Tracking Japan, LTd.
"providing spare and replacement parts procuring services to the international maritime and offshore oil drilling industry ever since. We are a small, but dedicated and nimble company, with our office in Hiroshima - Japan. " "

SOLOCO
" is the world's largest upstream oilfield and environmental construction contractor. "

The SOUND Energy Group
"an Oil & Gas geoscience and engineering consulting company dedicated to the cost-efficient discovery and production of hydrocarbon reservoirs via the application of SOUND geoscience and engineering technology. "

Southwestern Energy Corporation
"focused on adding shareholder value through the discovery and production of high margin crude oil and natural gas reserves. The Company is also involved in natural gas distribution, marketing and transportation activities that enhance value and provide stability."

Sovereign Oil & Gas Company
"founded in March of 2000 to apply state-of-the-art petroleum exploration and extraction technology to the development of international oil and natural gas projects. "

Spectrogram Corporation
"provided electro-optical instrumentation, systems, sensors, and scientific software to the fields of petroleum, analytical chemistry and physical measurement"

Spectrum Energy and Information Technology
"Companies in the group specialise in Seismic Data Processing, Speculative Seismic Surveys, Data Brokerage, Exploration Data Management, Image Processing, Data and Document Management, and related areas"

Spectrum Geophysics
"specializes in the geophysical characterization of industrial, military, and urban settings."

Sperry-Sun Drilling Services

Spinnaker Exploration Company
" a natural gas and oil exploration and production company "

Spot Image
"provides Earth observation products for such diverse applications as agriculture, cartography, cadastral mapping, environmental studies, urban planning, telecommunications, surveillance, forestry, land use/land cover mapping, natural hazard assessments, flood risk management, oil and gas exploration, geology and civil engineering."

Sproule
"worldwide petroleum consultants"

SST Energy Corporation
"provides contract-drilling services for the development of oil and natural gas and scientific purposes in the Rocky Mountain region of the United States"

Stangl Associates, Inc.
"a consulting engineering firm providing project management and process design services to Chemical, Petroleum, and Industrial Companies. The firm offers Structural, Mechanical, Chemical, Environmental and Electrical Engineering and CAD Services."

St. Mary Land & Exploration Company
"is engaged in the exploration, development, acquisition and production of natural gas and crude oil in five core areas in the United States. "

Statia Terminals
"commenced operations in 1982 and is committed to providing high quality services to the petroleum industry including transshipment, storage, blending, bunkering, and other related services. "

Statoil

• Statoil Denmark

• Statoil Norway

• Statoil Sweden

Steffen, Robertson and Kirsten Inc.
"Consulting Engineers and Scientists... Serving mainly Natural Resource Industries"

Sterling Pacific Resources Inc.

Stewart Brothers Drilling Co.
"Mining, Exploration, Environmental, Construction, Development, Abandonment Services"

Stim-Lab
"a Core Lab...division, is the oil and gas industry's foremost provider of a broad range of research and testing services for drilling, cementing, completion and stimulation design, additive evaluation, petrology and reservoir analysis. "

Stolt Offshore, S.A.
"leading contractor to the international oil & gas industry"

Stoner Engineering - MakinHole.Com
"The leader in technical hole deviation technology for the Oil & Gas Directional Drilling Industry."

Stratagraph Inc.
"Complete Computerized Mudlogging and Pressure Detection Services Utilizing State-Of-The-Art Data Acquisition Hardware and Software!"

Strato Incorporated
"the world leader in licensing CLEAN, HIGH-OCTANE gasoline technology!"

Stress Engineering Services (SES)
"a full-service engineering consulting firm committed to technical excellence and customer service. "

the Strickland Group Inc.
offering reservoir engineering consulting services, including expert testimony.

Sub Sea Sonics
"manufactures and sells the following underwater products: underwater timed release, underwater acoustic release, underwater acoustic receiver."

Sub Surface Tools, Inc.
"supplying test plugs, wearbushings and retrieving tools, bop rams, spools, and adapters to a full service rental tool company with Four Locations and a complete Inventory."

Subsurface Consultants & Associates, LLC (SCA)
"a full service upstream petroleum consulting and training company. SCA has grown to become a world leader in petroleum exploration, development and training services. "

Subsurface Surveys
"specializes, with many years of experience, in geophysical data acquisition, processing and interpretation in terms of real world geology. "

Sulzer Chemtech
"active in the field of process engineering"

Sun Machinery 
"Drilling Rig Central"

Suncor Inc.
" a world leader in mining and extracting crude oil from the vast oil sands deposits of Northern Canada. We also explore for, develop and market conventional crude oil and natural gas in Western Canada"

Superior Energy Services, Inc.,
"an industry leader in providing well abandonment and related services to oil and gas drilling and exploration companies in the Gulf of Mexico."

Superior Oilfield Supply
" proven wellhead equipment at prices compatible with current market conditions."

Sure Flow Consulting Services, Inc.
"Abandonments, Facility Installation, Pipeline Installation, Emergency Response Planning, Drilling and Completions Supervision, Workovers and Well Servicing Supervision....provides the highest value, skilled professionasl to the oil and gas industries"

Surtek Oil Recovery Specialists
"Specialists in Enhanced Oil Recovery Technology and In-Situ Soil Washing"

SWACO
Industry pioneers in the design and development of efficient drilling systems

Swansorb
"the environmental solution for the new millennium biodegradable oil and chemical absorbent"

Swift Energy Company
"is an independent oil and natural gas company engaged in the exploration, development, acquisition, and operation of oil and gas properties, with a focus on U.S. onshore natural gas reserves."

Swiftdale
" are one of the UK's leading Geological Consultancies who specialise in providing consultant Wellsite and Operations Geologists for Oil Companies. "

Syncrude Canada Ltd.
"the world's largest producer of blended crude oil from the oil sands and the largest single source of crude oil in Canada."

Syntroleum Corporation
"the developer and owner of the proprietary Syntroleum® Process and several related proprietary technologies for the conversion of natural gas into synthetic liquid fuels and specialty products."

System Development Inc.
"has been providing high performance, hard copy plotting and printing solutions for a wide range of industries since 1988."