Acciona is the parent company of a construction group. Co. is engaged in general construction activities in the areas of civil engineering and buildings, including railways, marine and hydraulic works, motorways and airports, town planning, conduits, pavements, parking lots, and industrial and urban buildings. In addition, Co. is engaged in the provision of real estate services, the operation of parking lots, telecommunications, services, ecology and alternative means of energy. Co.'s operations are organized in six business divisions: Infrastructures, Real Estate, Energy, Water, Environmental & Urban Services and Logistic & Transport Services.

Alfen NV (Alfen) is a company based in the Netherlands, engaged in the design, development and production of electric grid equipment. The Company is active in three business lines: Smart Grids, which supplies standardized electricity grid connection systems, secondary transformer substations, local power grids, devices for grid automation, as well as software and back-end systems for remote management and grid control; Energy Storage, responsible for development and installation of modular energy storage systems under the brand TheBattery, which are used by utilities, grid operators, energy traders and industrial companies, among others, and Electric Vehicle (EV) Charging, which supplies EV charge points in a variety of capacities and functionalities for use at home, work and in public areas. In addition, Alfen offers service, management and maintenance activities, including remote support and monitoring, as well as an in-house technological know-how center.

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.

CGG is a global participant in the geophysical seismic industry. Co. manufactures geophysical equipment and provides marine, land, and airborne data acquisition services. Co. also provides geosciences services, including data imaging, seismic data characterization, geosciences and petroleum engineering consulting services, and collecting, developing and licensing geological data. Co.'s clients are in oil and gas exploration and production industies. Co. divides its activities into four segments: Equipment, Contractual Data Acquisition, Geology, Geophysics and Reservoir (GGR), and Non-Operated Resources, including eight business lines, six Corporate functions, and four Group Departments.

EDP Energias de Portugal is a utility company engaged as a generator, distributor and supplier of electricity in Portugal, and as an electricity generation company and a gas distributor in the Iberian Peninsula. In addition, Co. is a wind power operator with windfarms for energy generation in the Iberian Peninsula, the U.S., Canada, Brazil, France, Belgium, Italy, Poland and Romania and is engaged in developing wind projects in the U.K. Co. is also engaged in generating solar photovoltaic energy in Portugal, Romania and the U.S, and in Brazil it is engaged as an operator in electricity generation. As of Dec 31 2015, Co. had 9.7 million electricity customers and 1.4 million gas customers.

Capital Stage is an investment company based in Germany. Co. is engaged in investing in small and medium sized enterprises.

Enel Societa Per Azioni is engaged in the generation and sale of electricity through its Generation, Energy Management and Sales Italy Division. Co. is also engaged in the distribution of electricity (Enel Distribuzione) and public and artistic lighting (Enel Sole) in Italy through its Infrastructure and Networks Division. Co.'s Iberia and Latin America Division coordinates Co.'s operations in the electricity and gas markets in Spain, Portugal and Latin America. Co.'s Engineering and Research Division manages the engineering processes related to the development and construction of power plants. Co.'s other divisions are the International Division as well as the Renewable Energy Division.

Engie is an industrial group, based in France, active in the fields of gas, electricity, energy services and the environment. Co. is an energy provider across the entire energy chain, in electricity and in natural gas, including: purchase, production and commercialization of natural gas and electricity; transport, distribution, management and development of major natural gas infrastructures; design and commercialization of energy services and environment-related services. Co.'s activities are conducted through five segments: Energy Europe, Energy International, Global Gas and LNG, Infrastructures, and Energy Services.

Eni is engaged in the oil and gas exploration and production, gas marketing operations, management of gas infrastructures, power generation, petrochemicals, oil field services and engineering industries. Co.'s operations are divided into three segments; Exploration and Production (oil and natural gas exploration and field development and production, as well as LNG operations), Gas and Power (supply, trading and marketing of gas and electricity, managing gas infrastructures for transport, distribution, storage, re-gasification, and LNG supply and marketing), and Refining and Marketing (supply of crude oil, refining and marketing of refined products). Co. maintains operations in 73 countries.

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.

ERG is engaged in the generation of energy from renewable sources and from thermoelectric plants, in the marketing of electricity, steam and gas, in the refining, marketing and distribution of petroleum products both in Italy and abroad. Co., also through its own subsidiaries and joint ventures with primary international operators, operates in the following segments: renewable energy sources, under which Co. operates through its ERG Renew S.p.A. subsidiary in the wind power generation business; power and gas, which includes the production and marketing of electric energy, steam and gas; and refining and marketing, which includes the results of Coastal Refining and Integrated Downstream.

Galp Energia is a holding company. Through its subsidiaries, Co. operates in the following segments: exploration and production, with activities relating to exploration, development and production of hydrocarbons, particularly in Angola, Brazil and Mozambique; refining and marketing, which owns refineries in Portugal and also includes activities relating to the retail and wholesale commercialization of oil products; and gas and power, which covers the purchasing, commercialization, distribution and storage of natural gas and electric and thermal power production. As of Dec 31 2014, Co. had proved and probable reserves of 638.0 million barrels of oil equivalent.

Grenergy Renovables Sl. Grenergy Renovables SL is a Spain-based company engaged in the marketing of energy recovery facilities. The Company develops projects and an Independent Power Producer (IPP) that generates renewable energy mainly through solar photovoltaic plants.

Iberdrola is a holding company. Through its subsidiaries, Co. operates in four segments: network business, which includes all the energy transmission and distribution activities, and other regulated activity originated in Spain, the U.K., the U.S. and Brazil; deregulated business, which includes electricity generation and sales businesses as well as gas trading and storage businesses carried on by Co. in Spain, Portugal, the U.K. and North America; renewable business, with activities related to renewable energies in Spain, the U.K., the U.S. and the rest of the world; and other businesses, including the engineering and construction businesses and the non-power businesses.

Gas Natural SDG is a gas company based in Spain. Co. and its subsidiaries are primarily engaged in the supply, transportation, distribution and commercialization of piped natural gas, as well as the activities involving exploration and developing, supply, regasification, liquefaction and storage of natural gas, and the generation and commercialization of electricity. Co. operates mainly in Spain and also outside of Spain, especially in Latin America, Puerto Rico, Italy, France and Africa (through Maghreb-Europe gas pipeline and integrated LNG projects in Algeria).

Neoen SA Formerly known as Neoen Sas. Neoen SAS is a France-based company specialized in the renewable energy sector. The Company operates, finances and develops a number of power plants from a variety of energy sources, including Solar, wind and Biomass. Its portfolio of power plants includes providencia, ombrineo, degrussa, cestas, ygos, luxey, geloux, seixal, cabrela, coruche, hornsdale I, bussy-lettree, raucourt II, villacerf, bais et trans, reclainville, chapelle vallon and la montagne. Apart from France, the Company is present in many other countries such as Portugal, Australia, Australia, Jordan, Zambia, Mozambique, Argentina, Jamaica, Mexico, Egypt and El Salvador, among others.

Nexans offers cables and cabling systems for the Infrastructure, Industry, Building and Local Area Network markets. Co.'s offering covers the research, design, manufacturing, installation, training, and network supervision and control. Co. operates under three segments: Energy (power cables for energy infrastructures, special cables for industry, and equipment cables for the building market), Telecom (cables for private telecommunications networks, junction components for telecommunications network cables, and copper and optical fiber cables for public telecommunications networks) and Electrical wires (wirerods, electrical wires and winding wires production operations).

Nordex is a holding company. Co. is a supplier of multimegawatt onshore wind turbines for locations characterised by strong, medium and light wind conditions. Co. focuses on developing and producing the entire system including the control software as well as the main core components and on providing related services. This mainly refers to the sale of wind power systems and, in selected markets, the upstream wind farm project development and sale of turnkey solutions. In addition, Co. assembles wind turbines and provides the necessary after-sales service. Co.'s finance department also supports customers to raise project finance via national and international commercial banks.

Orsted is a renewable energy company based in Denmark. Co. is engaged in developing a renewables portfolio based on competences in offshore wind, bioenergy, and energy solutions. Co. is active in deploying offshore wind and converting existing coal- and gas-fired power stations to sustainable biomass, providing a heat and power supply which is both green and flexible. Co. divides its operations into four businesses: Wind Power, Bioenergy & Thermal Power, and Distribution & Customer Solutions. The Bioenergy & Thermal Power and Distribution & Customer Solutions businesses jointly constitute Co.'s Danish utility business. Co. maintains activities primarily in Northwestern Europe.

Petrofac is a holding company. Co. is engaged as a service provider to the oil and gas production and processing industry. Co. designs, builds, operates and maintains oil and gas facilities. Co. has three segments: Engineering & Construction, which provides engineering, procurement and construction project execution services to the onshore and offshore oil and gas industry; Engineering & Production Services, which includes engineering and production services activities to the oil and gas industry; and Integrated Energy Services, which provides an integrated service for clients, with projects that cover upstream developments project, related energy infrastructure projects, and investment.

Petroleum Geo-Services is engaged in providing geophysical services and oil and gas production services. As of Dec. 31, 2001, Co. operated six Ramform design vessels in its marine seismic data acquisition operations.

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.

RWE is an electricity and gas company. The Conventional Power Generation segment consists of the activities of RWE Power, Essent and RWE npower. The Supply/Distribution Networks Germany segment supplies electricity, gas and heat. The Supply Netherlands/Belgium segment comprises the activities of Essent in the Netherlands. The Supply United Kingdom segment comprises the operations of RWE npower. The Central Eastern and South Eastern European segment contains activities in the Czech Republic, Hungary, Poland, Slovakia, Turkey and Croatia. The Renewables, Upstream Gas & Oil and Trading/Gas Midstream segments include the activities of RWE Innogy, RWE Dea and RWE Supply & Trading, respectively.

SBM Offshore is a holding company. Co. provides floating production solutions to the offshore energy industry, over the full product life-cycle. Co.'s main activities are the design, supply, installation, operation and life extension of floating production, storage and offloading (FPSO) vessels. Other products include semi-submersibles, tension-leg platforms, floating production storage and offloading liquefied natural gas, turret mooring systems, brownfield and offshore (off) loading terminals. As of Dec 31 2015, Co.'s fleet consisted of 10 FPSOs, two floating storage and offloadings, one mobile offshore production unit, one semisubmersible in operation worldwide.

Schlumberger provides technology for reservoir characterization, drilling, production and processing to the oil and gas industry. The company has four segments: Reservoir Characterization, which consists of the principal technologies involved in finding and defining hydrocarbon resources; Drilling, which consists of the principal technologies involved in the drilling and positioning of oil and gas wells; Production, which consists of the principal technologies involved in the lifetime production of oil and gas reservoirs; and Cameron, which consists of the principal technologies involved in pressure and flow control for drilling and intervention rigs, oil and gas wells and production facilities.

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.

Siemens Gamesa Renewable Energy is a holding company. Through its subsidiaries, Co. is engaged in the business of renewable energy sources, primarily wind power but also including solar energy where its acts as a supplier and manufacturer of technological products, installations and services. Co. is organized along the lines of: promotion, construction and sale of wind farms, engineering, design, manufacture and sale of wind turbines, manufacture of thermic and photovoltaic solar components, promotion and sale of photovoltaic solar farms. Co. also participates in both Spanish and European working groups aimed at establishing priorities for its sector's research & development work.

Sif Holding NV is a company based in the Netherlands, which provides steel foundations to the offshore wind, oil and gas markets. The Company operates in two segments: the Offshore Wind segment focuses on manufacturing monopiles for offshore wind farms. Monopiles consist of a tubular structure, typically with conical, and are hammered into the seabed. The Oil and Gas segment specializes in the production of steel tubular parts for the offshore oil and gas industries, with focus on jackets and related structures. The Company focuses on the North Sea region and also manufactures parts for machines and civil engineering projects, such as tubulars used in the Maeslant storm surge barrier, tubular structures used in the London Eye, and foundations for jetties, which are mooring platforms for ships.

Solaria Energia y Medio Ambiente manufactures both solar and thermal cells and panels, rolls out turnkey projects for large installations, operates solar plants and generates electricity through its owned plants.

Subsea 7 is a provider of seabed-to-surface engineering, construction and services contractor to the offshore energy industry. Co. provides products and services required for subsea field development, including project management, design and engineering, procurement, fabrication, survey, installation, and commissioning of production facilities on the seabed and the tie-back of these facilities to fixed or floating platforms or to the shore. Co. also provides products and capabilities to deliver full Life of Field services to its clients. Through its i-Tech Division, Co. provides remotely operated vehicles and tooling services to support exploration, production and drilling activities.

TechnipFMC is global leader in oil and gas projects, technologies, systems, and services. Co. offers subsea, surface, onshore, and offshore solutions for oil and gas projects. Co. serves customers worldwide. With Co.'s technologies and production systems, integrated expertise, and comprehensive solutions, Co. is transforming Co.'s clients' project economics. Co. is uniquely positioned to deliver greater efficiency across project lifecycles from concept to project delivery and beyond. Through innovative technologies and improved efficiencies, Co.'s offering unlocks new possibilities for Co.'s clients in developing their oil and gas resources.

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.

Verbund is a public utility company engaged in the generation and transmission of electricity from subsidiaries' hydro and thermal power stations located throughout Austria. Through its subsidiaries, Co. is involved in the planning and construction of water systems, hydroelectric power plants, river structures, sewage disposal systems, and high voltage transmission towers and lines. Co. generates, trades and sells electrical energy to power exchange buyers, traders, energy supply companies and industrial companies as well as households and commercial customers.

Voltalia. Voltalia SA is a France-based holding company engaged in the renewable utilities sector. It designs, develops and operates electric power stations in numerous countries, such as France, French Guyana, Brazil, Greece and Morocco. The Company generates electricity using a variety of renewable energy sources. These include wind, water, biomass and solar power. In addition, Voltalia SA specializes in carbon credit trading activities. The Company operates several subsidiaries, including Anelia and Bio-Bar in France, Voltalia Guyane, SIG Kourou, SIG Mana and SIG Cacao in French Guyana, Voltalia Energia do Brasil in Brazil, Thegero in Greece and Alterrya Maroc in Morocco, among others. The Company is owned by Voltalia Investissement SA.