BP is an integrated oil and gas group based in the United Kingdom. Co. is engaged in the exploration and production of crude oil and natural gas; refining, marketing, supply and transportation; and the manufacture and marketing of petrochemicals. Co. operates globally, with business activities in Europe, the U.S., Canada, Russia, South America, Australasia, Asia and parts of Africa. Co. operates in two business segments: Exploration and Production - including oil and natural gas exploration and development and production; and Refining and Marketing- activities include the refining, manufacturing, supply and trading, marketing and transportation of crude oil, petroleum and petrochemicals.

Equinor is engaged in oil and gas exploration and production activities. Co. is primarily focused on exploration, development and production of oil and gas on the Norwegian continental shelf (NCS). Co.'s operations are organized into four segments. The Development and Production Norway and Development and Production International segments explore, develop, produce and extract crude oil, natural gas and natural gas liquids. The Marketing, Processing and Renewable Energy segment markets, trades, transports and processes oil and natural gas and renewable energy. The Other segment consists of global well and project delivery, research and develpoment, and business development.

Gaztransport & Technigaz is an engineering company specialized in membrane containment systems for liquefied gas transport and storage. Co. designs and markets technologies which combine operational efficiency and safety to equip liquefied natural gas (LNG) carriers, LNG floating platforms and multi-gas transport vessels. Co. also provides solutions for onshore storage tanks and the use of LNG as a fuel for vessels propulsion as well as a wide range of services in engineering, consultancy, training, maintenance assistance and technical studies at each stage of the liquefied gas chain.

Repsol is an oil and gas company. Co. is engaged in all the activities relating to the oil and gas industry, including exploration, development and production of crude oil and natural gas, transportation of oil products, liquefied petroleum gas (LPG) and natural gas, refining, the production of a wide range of oil products and the retailing of oil products, oil derivatives, petrochemicals, LPG and natural gas, as well as the generation, transportation, distribution and supply of electricity. Co. operates in more than 40 countries. Co.'s operations are divided into four segments: Upstream, Downstream, LNG and Gas Natural Fenosa.

Saipem is a global contractor with local presence in Africa, Central Asia, America, the Middle East and South East Asia. Co. provides engineering, procurement, construction and installation services; and engineering, procurement and construction services to the oil and gas industry, both onshore and offshore, with a focus on projects, including activities in remote areas, in deep waters and on projects that involve difficult gas or crude supplies.

Schoeller-Bleckmann Oilfield Equipment is engaged as a producer of high precision components and a supplier of oilfield equipment for the oilfield service industry. Co. focuses on non-magnetic drillstring components (non-magnetic drill collars) and downhole tools for drilling and completing directional and horizontal wells. The High Precision Components segment consists of the manufacturing of MWD (Measuring While Drilling) and LWD (Logging While Drilling) precision drillstring components. The Oilfield Equipment segment comprises production and distribution of non-magnetic drill collars, drilling motors and tools for downhole circulation applications, repair and maintenance services.

Tenaris manufactures and supplies seamless steel pipe products for the global oil and gas industry, as well as other industrial applications. Co. operates an integrated worldwide network of steel pipe manufacturing, research, finishing, and service facilities with industrial operations in the Americas, Europe, Asia, and Africa. Co. produces pipes for boilers, heat exchangers, hydraulic cylinders, automotive, structural and other industrial applications and supplies welded steel pipes for oil and gas pipelines in the South American region. Its principal products include casing, tubing, line pipe, and mechanical and structural pipes. Co.'s organizes its business around one segment: Tubes.

Total is an international integrated oil and gas company also active in solar and biomass energy sources. Co. engages all aspects of the petroleum industry, including Upstream operations (oil and gas exploration, development and production, and LNG (Liquefied Natural Gas)) and Downstream operations (refining, petrochemicals, specialty chemicals, marketing and marketing and trading and shipping of crude oil and petroleum products). In addition, Co. is engaged in the coal mining and power generation sectors. Co.'s worldwide operations are conducted through three business segments: Upstream, Refining & Chemicals, and Marketing & Services.

Vallourec SA is a France-based company, which specializes in the production of seamless and welded steel tube products for industrial applications. It operates through two segments: Seamless Tubes and Specialty Products. For the oil and gas industry, it designs and develops a comprehensive range of products including seamless tubes and connections for drilling operations, line pipes and well equipment. For the power generation market, it offers tubes that withstand severe temperature and pressure conditions. Its solutions enable power companies to meet the challenges of energy efficiency and reduce CO2 emissions in power plants. It also offers a wide range of tubes for petrochemical installations (refineries), for mechanical engineering applications (hydraulic cylinders and machine tools), for the automotive industry, for construction (stadiums, other complex buildings and structures) and for various other industrial sectors. It operates through Vallourec Solucoes Tubulares do Brasil.