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Obar AS - High-pressure control system. Subsea acoustic transmission systems. Engineering, well and completion services.
Obled Sacsum - all types of heavy industrial equipment (up to 120 tonnes) from design to testing in our workshops.
Occidental Petroleum Corporation - oil and natural gas exploration and production
Ocean Flow International - provides Technical, Engineering, Commercial, and Management expertise,
Ocean Power Technologies (OPT) - leading renewable energy company specializing in offshore wave power technology
Ocean Rig ASA - the world’s largest and most modern drilling rigs, built for ultra deep water and extreme weather conditions
Oceaneering International - remote intervention ROV, marine and mechanical engineering
Contact: , Phone: (+171) 33 29 45 00, Fax: (+171) 33 29 49 51
Houston, USA, America(North)
www.oceaneering.com
Oceaneering Multiflex - design and manufacture of subsea control umbilicals for offshore applications
Oceaneering Rotator AS - designer and manufacturer of subsea and topside hydraulic control valves, subsea chemical injection valves and speciality control systems
Oceaneering Space & Thermal Systems - astronaut tools and equipment, robotics and automation, tele-science and automated science systems
Oceanic Consulting Corporation - Using world-class testing facilities and industry-leading numerical simulation software, analyses complex hydrodynamic behaviour
Oceanscan Ltd - world-class supplier of survey equipment, personnel and products to the offshore hydrographic, survey, ROV and defence industries
Oceanteam - is a offshore service company able to work for any client in any geographic location.
Oceanvision Pte Ltd - manufactures and supplies specialised equipment to various sectors of the offshore, marine and petrochemical industries
OceanWorks International Inc - specializing in manned and unmanned subsea work systems for key international marine industries
Odebrecht - is a Brazilian business conglomerate with international standards of quality
Oden Control AB - regulating electrical (24V DC) actuators for various process industries. Display includes low weight actuator with a compact design.
Oderco Inc. - specialized in the engineering, designing and manufacturing of oilfield drilling equipment and rig packages
Odessa - provides turnkey production for many types of pump applications.
Odfjell Drilling - is a leading drilling, technology and well service company in the North Sea with an increasing international presence
ODI - subsea electrical and fibreoptic interconnect systems. High-reliability connectors, cable assemblies and junction boxes
ODI Ocean Design Inc - is the world leader in subsea electrical and fiber optic interconnect systems
Odim - Cable handling winch and remote control systems, lifting and handling equipment, hydraulic systems, spooling devices, launch and recovery systems for ROVs
ODIM Brooke Ocean - provides hardware, systems engineering and R&D services to the marine science, naval and oil & gas sectors.
ODS-Petrodata - high quality market data, publications and analysis tools to the upstream oil and gas industry
OEM Components - products include transmission solenoids and sensors, vehicle speed and differential speed sensors
OffRig Drilling ASA - intention to build and contract a series of semi submersible drilling units
Offshore Accomodation Contractors Group BV - offshore and/or yard accommodation projects. Execution without downtime, interfaces or budget overruns
Offshore Clamp and Protector Technologies Inc - Manufacturer of Umbilical Clamps used in the completion and work over stage. Manufacturer of Protectors used to protect equipment during shipping and storage.
Offshore Denmark APS - A unique concept of Danish companies joining forces to give the customer the ultimate product
Offshore Design Engineering ODE - consulting, engineering, procurement, project management and operations support services
Offshore Heavy Transport AS - Norwegian oil service company owning vessels suitable for dry transportation of offshore drilling rigs and offshore modules
Offshore Marine Cable Specialists - supplies Amphenol connectors, Hawke glands, transits, enclosures and junction boxes, Burndy lugs and connectors, and Redapt adapter threads.
Offshore Marine Services - leading provider of offshore drilling and marine personnel to the oil and gas industry
Offshore Resource Group AS - ORG supplies consultancy services and concepts for sub sea
Offshore Safety and Survival Centre - safety and emergency response training courses to the offshore petroleum, marine transportation, fishing and land based industries
Offshore Seals (Asia) Pte. Ltd., - design service, prototype development and testing facilities for MNC's and Local Original Equipment Manufacturers.
Offshore Specialty Fabricators, Inc. - true turnkey project services with no built in contingencies or surprises.
Offspring International Ltd - specialising in offshore mooring systems
OGDCL - Oil & Gas Development Company Ltd - leading, regional Pakistani E & P Company
Oglaend System AS - multidiscipline support systems for marine, oil & offshore applications world wide.
OHM LTD - leading provider of Controlled Source Electromagnetic Imaging (CSEMI) services, including surveying, data processing
Ohmart/VEGA Corp. - sophisticated  process measurement technologies anywhere in the world.
Oil and Gas Investor - source for information about the financial world of oil and gas.
Oil Center Research International, LLC - as a leader in the manufacturing industry, Oil Center Research has gained a reputation for the high quality and dependability of its products
Oil Lift Technology Inc. - Progressive Cavity Pump drive head manufacturing company.
Oil Search - is an oil and gas exploration and development company
Oil States Industries - engineering solutions for pipeline, drilling, production, and structural projects
Contact: , Phone: (+181) 74 68 14 00, Fax: (+181) 74 68 62 50
Arlington, USA, America(North)
www.oilstates.com
Oil States Special Products - involved in the offshore structural construction industry since its incorporation in 1979
Oilair Hydraulics INC - is the first name in advanced hydraulic accumulators. OilAir is part of the Olaer Industries group of companies.
Oildata Logging Service Inc. - independent, solution-based Service Company delivering customized, cost-effective well-productivity enhancement solutions
Oilex Ltd - independent oil and gas exploration and production company
Oilexco Inc - exploration and production company
Oilfield Equipment Marketing, Inc. - coil based drill pipe inspection
Oilfield Supply and Resources China Ltd. - is a comprehensive oil and gas enterprise and trading company
Oilfield Systems Limited - specialised software support services to the E&P industry
Oilfield-Electric-Marine, Inc. - AC drives and motors specifically designed for the drilling and marine industries
Oiltech AS - supply high quality products, solutions, accessories and relevant services to customers in the temperature optimization and energy storage fields
Oldham Engineering Limited - undertake both small individual units to large turnkey projects, manufacturing equipment
Oliveira Holland B.V. - supplies steelwire ropes and fibre ropes to inland shipping, seagoing shipping, the fishing industry, the offshore industry
Oliver Valves Limited - product range offering both needle and ball valves to 10,000psi together with needle valve manifolds and close coupled manifiolds.
OMB Valves S.p.A. - manufacture mainly forged steel valves used to build and maintain process plants in the oil and gas, chemical, power generation industries.
Omega Models Ltd - modelmakers specialising in the construction of high quality 3D visual models for the Offshore Oil & Gas Industry
Omnisens SA - Fiber Optic Sensing Solutions - provides services for the Oil&Gas industry with dedicated solution for subsea structures integrity, pipeline flow assurance and fatigue monitoring
Omron IDM Controls - total automation package, with special attention on drives and motors
OMV Exploration & Production GmbH - austrian oil gas exploration companies
ONGC - Oil and Natural Gas Corp Ltd - leading National Oil GAS exploration Company of India
Contact: , Phone: +9101123301000, Fax: +9101123316413
New Delhi, INDIA, Asia
www.ongcindia.com
OPE Inc - engineering and project management services
Operations and Maintenance Management - expertise in Operations, Maintenance, Subsea, Marine Engineering, Inspection,
Optical Cable Corporation - design and production of special tight-buffered cables
Optimum Production AS - engineering products and consulting services for oil companies and oil service companies, reservoir engineering, drilling and well technology.
Orcina Ltd. - structural and hydrodynamic consultancy services to the offshore oil and gas sector
Origin Energy - holds significant producing assets; operates onshore processing facilities; and holds a portfolio of onshore and offshore exploration permits
Orion Instruments - manufacturers of pressure switches
Orion Marine Group Inc - provides a broad range of marine construction and specialty services on, over and under the water along the Gulf Coast,
Orion SpA Cast steel valves - product line of Steel Valves incorporating new and revised designs,
Ormat Technologies, Inc - development, manufacture, and marketing of innovative power systems. ORMAT® Energy Converter (OEC) units
Orskov Yard A/S - converts and repairs all types of ships up to 215 x 34 metres. The yard employes app. 160 people
OTS Offshore & Trawl Supply AS - manufacturer of synthetic fibre ropes of extreme strength, providing products for operational installations in the oil and offshore market.
Otto Energy - dynamic, rapidly growing oil and gas company
Overseas Equipment Services, Inc. - oil and gas drilling & well service industry in the Middle East and North Africa
Owen Oil Tools - designs and manufactures the most extensive line of perforating and perforating related products in the industry
Owens Corning - innovator of glass fiber technology.
Owens Kleen Tank - design and manufacturing of quality, low maintenance, sewage/waste treatment systems
OYO Geospace, Corp. - manufacture thermal imaging equipment and distribute dry thermal film products to the commercial graphics industry






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