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.

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.

Endesa is engaged in the production, transmission, distribution, and supply of electricity, through hydroelectric, fossil fuel, and nuclear generation. Co. is also engaged in the mining of coal for use in its fossil-fuel electric plants; mining research; land restoration, and environmental monitoring and control.

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.

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.

La Francaise de l'Energie is engaged in the operation of the French energy sector, with gas assets in northern and eastern France, specifically coal bed methane. Co. aims to substitute a portion of the gas imported into France with coal bed methane, which it produces, due to its low carbon footprint and production cost. Co.'s operations are mainly located in two areas: Lorraine, located in eastern France close to the Franco-German border, and in Nord-Pas-de-Calais, in the Hauts-de-France region located at the Franco-Belgian border. Co. operates in two operating segments: Lorraine which includes the exploration and certification of gas reserves and Avion which includes gas production.

Red Electrica is engaged in the transmission of electrical energy, the operation of the system and the management of the transmission network in the Spanish electricity system. In addition, through its subsidiaries, Co. is engaged in the acquisition, holding and management of foreign securities, co-ordination of international exchanges, provision of telecommunications services for third parties, provision of consultancy, engineering and construction services outside the Spanish electricity system, securing of funds, carrying out of financial transactions and provision of financial services.

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.

Rexel distributes low and ultra-low voltage electrical products to contractors, industrial and commercial customers (industrial and commercial companies, municipalities, public entities, parts manufacturers and panel builders). Its products are used for new installations, or maintenance & repair of existing installations. Its products covers Electrical Installation Equipment, Conduits and Cables, Lighting, Security & Communication, Climate Control, Tools, White & Brown Products. Co. also offers services to its customers, such as logistics & distribution, technical assistance & training. Co. operates mainly in four geographical areas: Europe, North America, Asia-Pacific and Latin America.

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.

Tecnicas Reunidas is a general contractor company based in Spain. Co. engages in the engineering, design, and construction of industrial facilities for refining and petrochemical, oil and gas, power, and infrastructure and industries sectors worldwide. Co. constructs nuclear plants, conventional thermal plants, and renewable energy and cogeneration facilities for power sector; refineries and facilities for petrochemicals; water treatment, desalination, waste management, air, land, and marine transport facilities; and liquefaction, and storage facilities, as well as oil and gas fields and pipelines. Co. also provides engineering, management and operating services for industrial plants.

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.

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.