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4,218 companies

Ohio Valley RV Park

Martins Ferry, OH, United StatesUpdated May 2026

Ohio Valley RV Park in Martins Ferry, OH offers full hookup RV parking with water, sewer, and electricity, catering to oil and gas workers with monthly, weekly, and daily rental options including free Wi-Fi.

Oil & Natural Gas Corporation

Location not listedUpdated Dec 2002

Oil & Natural Gas Corporation (ONGC) is an Indian multinational oil and gas company engaged in exploration, production, and development of hydrocarbons.

Oil Stop, L.L.C.

Harvey,, Louisiana, United StatesUpdated Jul 2006

Manufacturer of a complete line of oil spill control equipment including inflatable and foam-filled containment booms, reels, power packs, oil skimmers and spill kits

Oil-Free Gas Compressors from

Location not listedUpdated Dec 2002

RIX Industries specializes in oil-free and precision gas compressors and gas generation systems, serving critical marine, aerospace, industrial, and energy markets with advanced engineering and manufacturing solutions.

OilExec International

Location not listedUpdated Feb 2008

OilExec International is a leading recruitment and staffing services company specializing in the global oil and gas, energy, marine, infrastructure, and construction industries.

Oiltube.com

Location not listedUpdated Dec 2002

Oiltube.com is an online platform providing maritime industry news, videos, and information related to shipping, offshore, and oil and gas sectors.

Oklahoma Energy Resources Boar

Location not listedUpdated Dec 2002
Training

The Oklahoma Energy Resources Board is an organization focused on supporting and educating the next generation of professionals in Oklahoma's oil and natural gas industry, promoting land restoration, safety, and community outreach.

Okyanus International Forwarding Ltd.

Hasanpasa - Kadiköy, Istanbul, TurkeyUpdated Jun 2007
Freight/RFQ

Okyanus International Forwarding Ltd. is a forwarding company based in Hasanpasa - Kadiköy, Istanbul, Turkey, providing international freight forwarding services.

Olivera SA

Porto, PortugalUpdated Jul 2005

Olivera SA is a Portuguese manufacturer specializing in synthetic and wire ropes for demanding industrial applications including maritime, fishing, construction, and cranes, with nearly 200 years of experience and part of WireCo WorldGroup since 2010.

Olympic Instruments Inc.

Vashon, WA, United StatesUpdated Jun 2001

Olympic Instruments Inc. manufactures precision measuring instruments to U.S. and Canadian National Bureau of Standards specifications, serving maritime and industrial sectors.

Olympic Panel Products

Shelton,, WA, United StatesUpdated Nov 2004

OPP was founded by Atlas Holdings LLC, a Connecticut based private investment group, focused on specialty manufacturing businesses, and a team of former executives of forest product companies, including David Wang and Richard Yarbrough. Mr. Wang was a former Executive Vice President and Director of International Paper Company (“IP”). Mr. Yarbrough has held senior level positions at IP and Louisiana Pacific Company. On-site management includes former Simpson employees: Ben Horn, General Manager, Jim Langenberg, Production Manager, Jim Zmudka, Sales & Marketing Manager, Ken Pratt, Technical Director, and Eric Larsen, Controller. OPP's manufacturing facility is located in Shelton, Washington. It is the single largest overlay panel manufacturing facility, under a single roof, in the world. The site sits on approximately 25 acres adjoining Simpson Timber's sawmill operations. The manufacturing process includes the peeling and drying of veneer for our lay-up and press process plus an extensive finishing department, which includes a panel sander and film press for the production of our Two Step ® high quality overlay panels. We employ a Continuous Process Monitoring (CPM) in all our manufacturing process. OPP provides the world's largest selection of overlaid panels. We have a family of products to meet all the demanding requirements of the markets we serve. These markets include: Concrete Forming, Sign, Transportation and Industrial. OPP plans to continue the Simpson philosophy of cultivating long term mutually successful relationships with those who buy our products and those who supply our material needs. We are proud to have customer ties dating back many decades. Our success depends on their success, which requires that we have a clear understanding of their needs so that we can meet them by providing exceptional products and service. Another key is product development – coming up with new ideas to meet new needs. We are the only overlay panel manufacturer that has a full time staff devoted to product development.

Olympic Tug & Barge, Inc.

Portland,, WA, United StatesUpdated Jan 2007

Olympic Tug & Barge, Inc. provides marine transportation and services in the Puget Sound area of Washington and the Willamette and Columbia Rivers of Oregon, committed to superior customer service, quality operations, and safety since 1987.

Omegadyne, Inc.

Sunbury,, OH, United StatesUpdated Mar 2006

Omegadyne, Inc. is a leading manufacturer of pressure and force measurement and control equipment used in various industries including oceanography and oil exploration.

Omnistar, Inc

Houston,, TX, United StatesUpdated Aug 2015

OmniSTAR® provides highly accurate and reliable real-time GNSS positioning services worldwide via satellite, supporting industries including precision agriculture, mapping, and aviation.

Omur Salvage Co. Ltd.

Setustu-Kabatas,, Istanbul, TurkeyUpdated Oct 2004

Omur Salvage Co. Ltd. is a maritime salvage company based in Istanbul, Turkey, specializing in marine salvage and wreck removal services.

Onne Port Complex Free Port Zone

Onne, NigeriaUpdated Aug 2003

Onne Port Complex Free Port Zone is a strategic hub for the oil and gas industry in West Africa, offering incentives and business opportunities to investors in Nigeria's oil sector.

Onomichi Dockyard Co Ltd

Chuo-ku, Kobe, JapanUpdated Jun 2011

Onomichi Dockyard Co Ltd, established in 1943 in Hiroshima Prefecture, specializes in shipbuilding, ship repair, and construction, producing a variety of high-performance vessels including bulk carriers, tankers, and Ro/Ro cargo ships.

OptiMarin AS

Stamford, CT, United StatesUpdated May 2026

OptiMarin develops and manufactures complete systems for Ballast Water Treatment. The OptiMar Ballast System is based on solids separation and UV irradiation and utilizes the existing ballast pumps aboard the vessel. The OptiMar System can be retrofitted to existing vessels or installed in new builds and we handle flow rates ranging from 100 m3/h up to 3000 m3/h per ballast pump.

Opus Petroleum Engineering Ltd

Location not listedUpdated Dec 2002
Training

Calgary-based consulting company providing practical training courses and consulting for formation water interpretation and QGIS tutorials for the petroleum industry.