Utilities Stocks

NextEra Energy, Inc., through its subsidiaries, generates, transmits, distributes, and sells electric power to retail and wholesale customers in North America. The company generates electricity through wind, solar, nuclear, and natural gas-fired facilities. It also provides risk management services related to power and gas consumption. As of February 16, 2018, the company operated approximately 46,790 megawatts of net generating capacity. As of December 31, 2017, it served approximately 10 million people through approximately 5 million customer accounts in the east and lower west coasts of Florida with approximately 75,000 circuit miles of transmission and distribution lines and approximately 620 substations. The company was formerly known as FPL Group, Inc. and changed its name to NextEra Energy, Inc. in 2010. NextEra Energy, Inc. was founded in 1925 and is headquartered in Juno Beach, Florida.

Dominion Energy, Inc. produces and transports energy. The company's Power Delivery segment engages in the regulated electric transmission and distribution operations that serve residential, commercial, industrial, and governmental customers in Virginia and North Carolina. Its Power Generation segment is involved in the electricity generation activities. It also comprises generation operations of the company's merchant fleet and energy marketing, and price risk management activities for its assets. The company's Gas Infrastructure segment engages in the regulated natural gas distribution, gas transmission pipeline and storage, liquefied natural gas, and nonregulated retail natural gas marketing operations, as well as natural gas gathering and processing activities. This segment serves residential, commercial, and industrial customers. The company's Southeast Energy segment generates, transmits, distributes, and markets electricity and natural gas through South Carolina Electric & Gas Company and Public Service Company of North Carolina. As of December 31, 2018, the company's portfolio of assets included approximately 26,000 megawatts of generating capacity; 6,700 miles of electric transmission lines; 58,300 miles of electric distribution lines; 14,800 miles of natural gas transmission, gathering, and storage pipelines; and 52,300 miles of gas distribution pipelines. It served approximately 5 million utility and retail energy customers; and operated underground natural gas storage systems with approximately 1 trillion cubic feet of storage capacity. The company sells electricity at wholesale prices to rural electric cooperatives and municipalities, as well as into wholesale electricity markets. The company was formerly known as Dominion Resources, Inc. and changed its name to Dominion Energy, Inc. in May 2017. Dominion Energy, Inc. was founded in 1909 and is headquartered in Richmond, Virginia.

Duke Energy Corp. engages in distribution of natural gas and energy related services. It operates through the following segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure, and Commercial Renewables. The Electric Utilities and Infrastructure segment conducts operations primarily through the regulated public utilities of Duke Energy Carolinas, Duke Energy Progress, Duke Energy Florida, Duke Energy Indiana and Duke Energy Ohio. The Gas Utilities and Infrastructure segment focuses on natural gas operations primarily through the regulated public utilities of Piedmont and Duke Energy Ohio. The Commercial Renewables segment acquires, develops, builds, operates, and owns wind and solar renewable generation throughout the continental United States. The company was founded in 1904 and is headquartered in Charlotte, NC.

The Southern Company, through its subsidiaries, engages in the generation, transmission, and distribution of electricity. It operates in four segments: Gas Distribution Operations, Gas Pipeline Investments, Wholesale Gas Services, and Gas Marketing Services. The company also constructs, acquires, owns, and manages power generation assets, including renewable energy facilities and sells electricity in the wholesale market; and distributes natural gas in Illinois, Georgia, Virginia, and Tennessee, as well as provides gas marketing services, wholesale gas services, and gas pipeline investments operations. It owns and/or operates 33 hydroelectric generating stations, 26 fossil fuel generating stations, 3 nuclear generating stations, 13 combined cycle/cogeneration stations, 40 solar facilities, 9 wind facilities, and 1 biomass facility; and constructs, operates, and maintains 75,200 miles of natural gas pipelines and 14 storage facilities with total capacity of 158 Bcf to provide natural gas to residential, commercial, and industrial customers. The company serves approximately 9 million electric and gas utility customers. It also provides products and services in the areas of distributed generation infrastructure, energy efficiency, and utility infrastructure. In addition, the company offers digital wireless communications services with various communication options, including push to talk, cellular service, text messaging, wireless Internet access, and wireless data. The Southern Company was founded in 1945 and is headquartered in Atlanta, Georgia.

National Grid plc transmits and distributes electricity and natural gas. It operates through UK Electricity Transmission, UK Gas Transmission, US Regulated, and National Grid Ventures and Other Activities segments. The UK Electricity Transmission segment owns and operates electricity transmission networks, which comprise approximately 7,200 kilometers of overhead lines; 1,560 kilometers of underground cables; and 346 substations in England and Wales, as well as Scottish electricity transmission systems. The UK Gas Transmission segment owns and operates gas transmission systems that include approximately 7,660 kilometers of high-pressure pipes and 24 compressor stations connecting 8 distribution networks in Great Britain, as well as other third-party independent systems and liquefied natural gas (LNG) storage facilities. The US Regulated segments owns and operates transmission facilities across upstate New York, Massachusetts, New Hampshire, Rhode Island, and Vermont; and electricity distribution networks in upstate New York, Massachusetts, and Rhode Island. This segment's assets comprise 14,293 kilometers of overhead lines; 168 kilometers of underground cables; 387 transmission substations; and 740 distribution substations. It also engages in owning and operating gas distribution networks in upstate New York, New York City, Long Island, Massachusetts, and Rhode Island. The National Grid Ventures and Other Activities segment engages in the commercial operations in metering, LNG importation terminal, and electricity interconnectors businesses, as well as property development and insurance activities in the United Kingdom and United States. The company was founded in 1990 and is headquartered in London, the United Kingdom.

American Electric Power Company, Inc., an electric public utility holding company, engages in the generation, transmission, and distribution of electricity for sale to retail and wholesale customers in the United States. The company generates electricity using coal and lignite, natural gas, nuclear, hydroelectric, solar, wind, and other energy sources. It also supplies and markets electric power at wholesale to other electric utility companies, rural electric cooperatives, municipalities, and other market participants. The company owns, leases, or controls approximately 3,664 railcars, 468 barges, 9 towboats, and a coal handling terminal with approximately 18 million tons of annual capacity. American Electric Power Company, Inc. was founded in 1906 and is headquartered in Columbus, Ohio.

BCE Inc., a telecommunications and media company, provides wireless, wireline, Internet, and television (TV) services to residential, business, and wholesale customers in Canada. It operates in three segments: Bell Wireless, Bell Wireline, and Bell Media. The Bell Wireless segment offers wireless voice and data communications products and services, including 40 live and on-demand channels on smartphones and tablets; roaming services; push-to-talk, field service management, worker safety, and mobility management solutions; and asset management, smart buildings, smart cities, fleet management, and other Internet of Things services. It also provides various 4G LTE and LTE-A smartphones and tablets, mobile Internet hubs and sticks, and mobile Wi-Fi devices, as well as smartwatches, Bell connected cars, trackers, smart homes, lifestyle products, and virtual reality products. The Bell Wireline segment provides data, including Internet access and Internet protocol television; and local telephone, long distance, and other communications services and products. It also provides home security, monitoring, and automation services; and satellite TV and connectivity services. In addition, this segment offers local exchange carrier and telecommunications services; sells wireline-related products; and buys and sells local telephone, long distance, data, and other services from or to resellers, and other carriers. The Bell Media segment provides conventional TV, specialty TV, pay TV, and streaming services; and digital media, radio broadcasting, out-of-home advertising services, sports and other event production, and broadcasting services. It owns and operates approximately 30 conventional TV stations; 33 specialty and Pay TV channels; 3 direct-to-consumer streaming services; 109 licensed radio stations; and 200 Websites and approximately 30 apps. The company was formerly known as Bell Canada Enterprises Inc. BCE Inc. was founded in 1880 and is headquartered in Verdun, Canada.

Exelon Corporation, a utility services holding company, engages in energy generation and delivery businesses in the United States and Canada. It owns nuclear, fossil, wind, hydroelectric, and solar generating facilities. The company also sells electricity to wholesale and retail customers; and sells natural gas, renewable energy, and other energy-related products and services. In addition, it is involved in the purchase and regulated retail sale of electricity and natural gas; and transmission and distribution of electricity, and distribution of natural gas to retail customers. Further, the company offers corporate governance support services, including corporate strategy and development, legal, human resources, information technology, finance, real estate, security, corporate communications, supply at cost, engineering, distribution and transmission planning, asset management, system operations, and power procurement services. It serves distribution utilities, municipalities, cooperatives, and financial institutions, as well as commercial, industrial, governmental, and residential customers. The company was incorporated in 1999 and is headquartered in Chicago, Illinois.

Sempra Energy, together with its subsidiaries, invests in, develops, and operates energy infrastructure, as well as provides electric and gas services in the United States and internationally. The company's San Diego Gas & Electric Company segment generates, transmits, and distributes electricity; and supplies natural gas. It provides electric services to a population of approximately 3.7 million and natural gas services to approximately 3.4 million of that population, covering a 4,100 square mile service territory in Southern California. Its Southern California Gas Company segment owns and operates a natural gas distribution, transmission, and storage system that supplies natural gas to a population of approximately 21.9 million, covering a 24,000 square mile service territory that encompasses Southern California and portions of central California. The company's Sempra Texas Utility segment is involved in the regulated transmission and distribution of electricity serving approximately 3.6 million homes and businesses, and operating approximately 137,000 miles of transmission and distribution lines. As of December 31, 2018, its transmission system included 16,000 circuit miles of transmission lines, 306 transmission stations, and 740 distribution substations; and distribution system consisted of 121,000 miles of overhead conductors and underground conductors. Sempra Energy's Sempra Mexico segment develops, owns and operates, or holds interests in natural gas, electric, LNG, LPG, ethane, and liquid fuels infrastructure; and engages in the purchase of LNG, and purchase and sale of natural gas. This segment operates a natural-gas-fired combined-cycle plant and two wind power generation facilities. Its assets/facilities consisted of 1,353 miles of natural gas transmission pipelines, 12 compressor stations, 139 miles of ethane pipelines, 118 miles of LPG pipelines, and 1 LPG storage terminal. The company was founded in 1998 and is headquartered in San Diego, California.

Xcel Energy Inc. is a public utility holding company. The Company's operations include the activity of four utility subsidiaries that serve electric and natural gas customers in eight states. The Company's segments include regulated electric utility, regulated natural gas utility and all other. The Company's utility subsidiaries include NSP-Minnesota, NSP-Wisconsin, Public Service Company of Colorado (PSCo) and Southwestern Public Service Co. (SPS), which serve customers in portions of Colorado, Michigan, Minnesota, New Mexico, North Dakota, South Dakota, Texas and Wisconsin. Along with WYCO Development LLC (WYCO), a joint venture formed with Colorado Interstate Gas Company, LLC (CIG) to develop and lease natural gas pipelines storage and compression facilities, and WestGas InterState, Inc. (WGI), an interstate natural gas pipeline company, these companies comprise the regulated utility operations.

Chunghwa Telecom Co., Ltd. provides telecommunication services in Taiwan. It operates through Domestic Fixed Communications Business, Mobile Communications Business, Internet Business, International Fixed Communications Business, and Other Business segments. It offers local and domestic long distance telephone and leased line, broadband access, Wi-Fi, and multimedia on demand services; information and communication technology (ICT), corporate, and bill handling services; and interconnection with its fixed-line network to other mobile and fixed-line operators. It also offers mobile; HiNet Internet, data communication, and cloud; Internet value-added and data center; international long distance telephone, data, and other; and satellite services. In addition, it distributes and sells mobile handsets, tablets, data cards, electronic materials, ICT products, and computing and business machinery equipment and software; designs, develops, produces, sells, and services semiconductor testing components, printed circuit boards, and electronic components and finished products, and automatic license plate recognition software and hardware products. Further, it offers property development and management; system, network, and communications integration; intelligent buildings and energy network; digital information supply and advertisement; property and liability insurance agency; digital family education; computing equipment installation; management consultancy; data processing; telecommunication engineering; Internet identify; and integrated information and communication solution services. Additionally, it is involved in the investment; digital entertainment content production; animated character licensing and endorsement; and mobile digital platform construction businesses, as well as provision of energy saving solutions and international circuits, and services for electronic parts and machinery processed products. The company was founded in 1996 and is based in Taipei, Taiwan.

Eversource Energy, a public utility holding company, engages in the energy delivery business. The company operates in four segments: Electric Distribution, Electric Transmission, Natural Gas Distribution, and Water Distribution. It is involved in the transmission and distribution of electricity; and distribution of natural gas. The company operates water regulated utilities. It also provides water services to approximately 228,000 customers. It serves residential, commercial, industrial, municipal, fire protection, and other customers in Connecticut, Massachusetts, and New Hampshire, the United States. The company was formerly known as Northeast Utilities and changed its name to Eversource Energy in April 2015. Eversource Energy was founded in 1927 and is based in Springfield, Massachusetts.

WEC Energy Group, Inc., through its subsidiaries, provides regulated natural gas and electricity, and nonregulated renewable energy services in the United States. The company operates through six segments: Wisconsin, Illinois, Other States, Electric Transmission, Non-Utility Energy Infrastructure, and Corporate and Other. It generates and distributes electricity from coal, natural gas, oil, hydroelectric, wind, and biomass sources; provides electricity transmission services; offers retail natural gas distribution services; transports customer-owned natural gas; and generates, distributes, and sells steam. The company offers electricity to approximately 1.6 million residential, small and large commercial and industrial, and other customers; and natural gas to 2.8 million residential, and commercial and industrial customers. As of December 31, 2018, it operated approximately 36,800 miles of overhead distribution lines and 33,300 miles of underground distribution cable, as well as approximately 500 distribution substations and 500,450 line transformers; and approximately 48,900 miles of natural gas distribution mains, as well as 1,100 miles of natural gas transmission mains. The company was formerly known as Wisconsin Energy Corporation and changed its name to WEC Energy Group, Inc. in June 2015. WEC Energy Group, Inc. was founded in 1981 and is headquartered in Milwaukee, Wisconsin.

Public Service Enterprise Group Incorporated, through its subsidiaries, operates as an energy company primarily in the Northeastern and Mid- Atlantic United States. It operates through two segments, PSE&G and Power. The PSE&G segment transmits electricity; distributes electricity and gas to residential, commercial, and industrial customers, as well as invests in solar generation projects, and energy efficiency and related programs; and offers appliance services and repairs to customers. As of December 31, 2018, it had electric transmission and distribution system of 24,000 circuit miles and 855,000 poles; and 18,000 miles of gas mains, 12 gas distribution headquarters, 2 sub-headquarters, and 1 meter shop. This segment also owns and operates 52 switching stations with an aggregate installed capacity of 37,378 megavolt-amperes (MVA), as well as 244 substations with an aggregate installed capacity of 8,228 MVA; and 4 electric distribution headquarters and 5 sub-headquarters, as well as 58 natural gas metering and regulating stations. The Power segment operates nuclear, coal, gas, oil-fired, solar, and renewable generation facilities. As of December 31, 2018, it had an installed fossil and nuclear generating capacity of approximately 11,458 megawatts. Public Service Enterprise Group Incorporated was founded in 1985 and is headquartered in Newark, New Jersey.

China Telecom Corporation Limited, together with its subsidiaries, provides wireline and mobile telecommunications services primarily in the People's Republic of China. It offers wireline voice services, including local wireline telephone services and long distance wireline services; CDMA mobile voice services, such as local calls, domestic and international long distance calls, intra-provincial roaming, and inter-provincial roaming and international roaming; wireline Internet access services comprising dial-up and broadband services; wireless Internet access services; and wireline, Internet, and mobile value-added services. The company also provides Best Tone information services; and information technology-based integrated solutions, such as system integration, outsourcing, special advisory, information application, knowledge, and software development services. In addition, it offers managed data services that include digital data network, frame relay, and asynchronous transfer mode services for government agencies, large corporations, and institutions; and leased line services, as well as sells, repairs, and maintains customer-end equipment. Further, the company provides international telecommunications services, including network equipment, international Internet access and transit, Internet data center, and mobile virtual network services in various countries, including the Asia Pacific, Europe, Africa, South America, and North America; and music production and related information, instant messenger, and e-commerce services, as well as sells telecommunications terminals. As of December 31, 2018, it had approximately 303 million mobile subscribers; 146 million wireline broadband subscribers; and 116 million access lines in service. The company was incorporated in 2002 and is based in Wanchai, Hong Kong. China Telecom Corporation Limited is a subsidiary of China Telecommunications Corporation.

Consolidated Edison, Inc., through its subsidiaries, engages in regulated electric, gas, and steam delivery businesses in the United States. The company offers electric services to approximately 3.5 million customers in New York City and Westchester County; gas to approximately 1.1 million customers in Manhattan, the Bronx, parts of Queens, and Westchester County; and steam to approximately 1,622 customers in parts of Manhattan. It also supplies electricity to approximately 0.3 million customers in southeastern New York, and northern New Jersey; and gas to approximately 0.1 million customers in southeastern New York. The company operates 549 circuit miles of transmission lines; 15 transmission substations; 63 distribution substations; 85,545 in-service line transformers; 3,748 pole miles of overhead distribution lines; and 2,181 miles of underground distribution lines, as well as 4,416 miles of mains and 375,898 service lines for natural gas distribution. In addition, it owns, operates, and develops renewable and energy infrastructure projects; and provides energy-related products and services to wholesale and retail customers, as well as invests in electric and gas transmission projects. The company primarily sells electricity to industrial, commercial, residential, and governmental customers. Consolidated Edison, Inc. was founded in 1884 and is based in New York, New York.

Telefónica, S.A. provides mobile and fixed communication services primarily in Europe and Latin America. The company's mobile and related services and products comprise mobile voice, value added, mobile data and Internet, wholesale, corporate, roaming, fixed wireless, and trunking and paging services. Its fixed telecommunication services include PSTN lines; ISDN accesses; public telephone services; local, domestic, and international long-distance and fixed-to-mobile communications; corporate communications; supplementary and business oriented value-added; video telephony; intelligent network; and telephony information services. The company also leases and sells handset equipment, as well as provides Internet and broadband multimedia services comprising Internet service provider; portal and network; retail and wholesale broadband access; narrowband switched access to Internet; high-speed Internet services through fiber to the home; and voice over Internet protocol services. In addition, it offers data and business-solutions services that include leased lines; virtual private network; fiber optics; hosting and application; outsourcing and consultancy; desktop; and system integration and professional services. Further, the company offers wholesale services for telecommunication operators, including domestic interconnection; international wholesale; leased lines for other operators' network deployment; and local loop leasing under the unbundled local loop regulation framework, as well as bit stream services, wholesale line rental accesses, and leased ducts for other operators' fiber deployment. Additionally, it provides Internet protocol television (TV), over-the-top network TV, cable and satellite TV, and pay TV services; M2M connectivity platforms; financial and other payment, security, cloud computing, advertising, big data, and digital telco experience services; and Aura and Movistar Home. The company was founded in 1924 and is headquartered in Madrid, Spain.

American Water Works Company, Inc., through its subsidiaries, provides water and wastewater services in the United States and Canada. It offers water and wastewater services to approximately 1,600 communities in 16 states serving approximately 3.4 million active customers. The company serves residential customers; commercial customers, such as food and beverage providers, commercial property developers and proprietors, and energy suppliers; fire service and private fire customers; industrial customers, such as large-scale manufacturers, mining, and production operations; public authorities comprising government buildings and other public sector facilities; and other utilities and community water and wastewater systems. It also provides various warranty protection programs to residential and smaller commercial customers; water and wastewater services on various military installations; and customized water transfer services for shale natural gas exploration and production companies. In addition, the company undertakes contracts with municipal, commercial, and industrial customers, primarily to operate and manage water and wastewater facilities, as well as offers other related services. It operates approximately 81 surface water treatment plants; 530 groundwater treatment plants; 10 combined treatment plants; 130 wastewater treatment plants; 51,000 miles of transmission, distribution, and collection mains and pipes; 1,000 groundwater wells; 1,400 water and wastewater pumping stations; 1,300 treated water storage facilities; and 80 dams. The company serves approximately 14 million people with drinking water, wastewater, and other water-related services in 46 states in the United States and Ontario, Canada. The company was founded in 1886 and is headquartered in Camden, New Jersey.

Perusahaan Perseroan (Persero) PT Telekomunikasi Indonesia Tbk provides telecommunications, information, and media and edutainment services worldwide. It operates in four segments: Mobile, Consumer, Enterprise, and Wholesale and International. The company offers mobile services, including mobile voice, SMS, value-added, and mobile broadband services. It also provides fixed voice and broadband services; and wholesale telecommunications services, including interconnection, network, Wi-Fi, value-added, hubbing, data center and content platform, data and Internet, and various solutions; and engages in the satellite and tower operations, and infrastructure and network management activities. In addition, the company offers information and communications technology platform services, such as enterprise connectivity, IT, data center and cloud, business process outsourcing, and devices and hardware sales and services. Further, it provides smart enabler platform services, including tourism, payment, digital advertising, and big data and data analytics services, as well as Internet of Things platform and network connectivity services. Additionally, the company offers mobile-based digital lifestyle, payment, and advertising and analytics, as well as Internet of Things services; TV and video-on-demand IPTV services; and e-Commerce services that include blanja.com, an online marketplace for consumer-to-consumer and business-to-consumer sales. It also provides property development, lease, facilities, and management services; and multimedia portal, broadcasting, satellite, system integrator, digital content exchange hub, health insurance administration, directory information, data and information, and trading services. As of December 31, 2017, the company had approximately 196.3 million mobile cellular subscribers; 11 million fixed wireline network subscribers; and 111.1 million broadband subscribers. The company was founded in 1884 and is headquartered in Bandung, Indonesia.

FirstEnergy Corp., through its subsidiaries, generates, transmits, and distributes electricity in the United States. The company operates through Regulated Distribution and Regulated Transmission segments. It owns and operates coal-fired, nuclear, hydroelectric, natural gas, wind, and solar power generating facilities. The company also provides energy-related products and services to retail and wholesale customers. It operates 24,506 circuit miles of overhead and underground transmission lines; and electric distribution systems, including 277,284 miles of overhead pole line and underground conduit carrying primary, secondary, and street lighting circuits, as well as owns substations with a total installed transformer capacity of approximately 164,611,989 kilovolt-amperes. The company serves approximately six million customers in Ohio, Pennsylvania, West Virginia, Maryland, New Jersey, and New York. FirstEnergy Corp. was founded in 1996 and is headquartered in Akron, Ohio.

TELUS Corporation, together with its subsidiaries, provides a range of telecommunications products and services in Canada. It operates through Wireless and Wireline segments. The company's telecommunications products and services comprise wireless and wireline voice and data services; data services, including Internet protocol; television services; hosting, managed information technology, and cloud-based services; healthcare solutions; customer care and business services; and home and business security solutions. It has 13.4 million subscriber connections, including 9.2 million wireless subscribers, 1.9 million high-speed Internet subscribers, 1.2 million wireline residential network access lines, and 1.1 million TELUS TV subscribers. The company was formerly known as TELUS Communications Inc. and changed its name to TELUS Corporation in February 2005. TELUS Corporation was founded in 1993 and is based in Vancouver, Canada.

DTE Energy Company engages in the utility operations. The company's Electric segment generates, purchases, distributes, and sells electricity to approximately 2.2 million residential, commercial, and industrial customers in southeastern Michigan. It generates electricity through fossil-fuel, hydroelectric pumped storage, and nuclear plants, as well as wind and other renewable assets. This segment owns and operates approximately 696 distribution substations and 442,700 line transformers. The company's Gas segment purchases, stores, transports, distributes, and sells natural gas to approximately 1.3 million residential, commercial, and industrial customers throughout Michigan; and sells storage and transportation capacity. This segment has approximately 19,800 miles of distribution mains; 1,305,000 service pipelines; and 1,273,000 active meters, as well as owns approximately 2,000 miles of transmission pipelines. Its Gas Storage and Pipelines segment owns natural gas storage fields, lateral and gathering pipeline systems, and compression and surface facilities, as well as has ownership interests in interstate pipelines serving the Midwest, Ontario, and northeast markets. The company's Power and Industrial Projects segment offers metallurgical coke; pulverized coal and petroleum coke to the steel, pulp and paper, and other industries; and power, steam and chilled water production, and wastewater treatment services, as well as supplies compressed air to industrial customers. It also owns and operates 5 renewable generating plants with a capacity of 217 MWs; 23 landfill gas recovery sites; and 10 reduced emissions fuel facilities. Its Energy Trading segment engages in power and gas marketing and trading; structured transactions; and the optimization of contracted natural gas pipeline transportation and storage positions. The company was founded in 1903 and is headquartered in Detroit, Michigan.

Edison International, through its subsidiaries, engages in the generation, transmission, and distribution of electricity in the United States. It generates electricity through hydroelectric, diesel/liquid petroleum gas, natural gas, nuclear, and photovoltaic sources. The company supplies electricity primarily to residential, commercial, industrial, agricultural, and other customers, as well as public authorities through transmission and distribution networks. Its transmission facilities consist of lines ranging from 33 kV to 500 kV and substations; and distribution system comprises approximately 53,000 line miles of overhead lines, 38,000 line miles of underground lines, and 800 substations located in California. The company serves approximately 5 million customers. Edison International was founded in 1886 and is based in Rosemead, California.

PPL Corporation, a utility holding company, delivers electricity and natural gas in the United States and the United Kingdom. The company operates through three segments: U.K. Regulated, Kentucky Regulated, and Pennsylvania Regulated. It serves approximately 414,000 electric and 328,000 natural gas customers in Louisville and adjacent areas in Kentucky; 527,000 electric customers in central, southeastern, and western Kentucky; and 28,000 electric customers in 5 counties in southwestern Virginia. The company also provides electric delivery services to approximately 1.4 million customers in Pennsylvania; operates electricity distribution networks in the United Kingdom; generates electricity from coal, gas, hydro, and solar sources in Kentucky; and sells wholesale electricity to 10 municipalities in Kentucky. PPL Corporation was founded in 1920 and is headquartered in Allentown, Pennsylvania.

Entergy Corporation, together with its subsidiaries, engages in the production and distribution of electricity in the United States. It generates electricity through gas/oil, nuclear, coal, hydro, and solar power sources. The company's Utility segment generates, transmits, distributes, and sells electric power in portions of Arkansas, Mississippi, Texas, and Louisiana, including the City of New Orleans; and distributes natural gas. Its Entergy Wholesale Commodities segment engages in the ownership, operation, and decommissioning of nuclear power plants located in the northern United States; sale of electric power to wholesale customers; provision of services to other nuclear power plant owners; and owning interests in non-nuclear power plants that sell electric power to wholesale customers. This segment sells energy to retail power providers, utilities, electric power co-operatives, power trading organizations, and other power generation companies. The company's power plants have approximately 30,000 megawatts (MW) of electric generating capacity, including approximately 9,000 MW of nuclear power. The company delivers electricity to 2.9 million utility customers in Arkansas, Louisiana, Mississippi, and Texas. Entergy Corporation was founded in 1949 and is based in New Orleans, Louisiana.

Ameren Corporation operates as a public utility holding company in the United States. It operates through four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. The company engages in the rate-regulated electric generation, transmission, and distribution activities; and rate-regulated natural gas distribution and transmission businesses. It primarily generates electricity through coal, nuclear, and natural gas, as well as renewable sources, such as hydroelectric, methane gas, and solar. The company serves residential, commercial, and industrial customers. As of March 4, 2019, it served approximately 1.2 million electric customers and approximately 130,000 natural gas customers in central and eastern Missouri. The company was founded in 1881 and is headquartered in St. Louis, Missouri.

Fortis Inc. operates as an electric and gas utility company in Canada, the United States, and the Caribbean. It generates, transmits, and distributes electricity to approximately 425,000 retail customers in southeastern Arizona; and 97,000 retail customers in Arizona's Mohave and Santa Cruz counties with an aggregate capacity of 3,377 MW (MW), including 57 MW of solar capacity. The company also sells wholesale electricity to other entities in the western United States; owns gas-fired and hydroelectric generating capacity totaling 64 MW; and distributes natural gas to approximately 1,030,000 customers in British Columbia, Canada. In addition, it owns and operates the electricity distribution system that serves approximately 564,000 customers in southern and central Alberta; owns four hydroelectric generating facilities with a combined capacity of 225 MW; and provides operation, maintenance, and management services to hydroelectric generating facilities. Further, the company distributes electricity in the island portion of Newfoundland and Labrador serving approximately 268,000 customers with an installed generating capacity of 139 MW; and on Prince Edward Island serving approximately 81,000 customers through generating facilities with a combined capacity of 145 MW. Additionally, it provides integrated electric utility service to approximately 176,000 customers in British Columbia; approximately 268,000 customers in Newfoundland and Labrador; approximately 30,000 customers on Grand Cayman, Cayman Islands; and approximately 15,000 customers on certain islands in Turks and Caicos, as well as holds long-term contracted generation assets in British Columbia and Belize, and the Aitken Creek natural gas storage facility. It also owns and operates transmission and distribution lines; and natural gas pipelines. Fortis Inc. was founded in 1885 and is headquartered in St. John's, Canada.

CMS Energy Corporation operates as an energy company primarily in Michigan. The company operates in three segments: Electric Utility, Gas Utility, and Enterprises. The Electric Utility segment is involved in the generation, purchase, transmission, distribution, and sale of electricity. The segment generates electricity through coal, gas, renewable energy, oil, and nuclear sources. Its transmission and distribution system includes 214 miles of transmission overhead lines; 195 miles of high-voltage distribution overhead lines; 4 miles of high-voltage distribution underground lines; 4,435 miles of high-voltage distribution overhead lines; 19 miles of high-voltage distribution underground lines; 56,152 miles of electric distribution overhead lines; 10,817 miles of underground distribution lines; substations; and a battery facility. The Gas Utility segment engages in the purchase, transmission, storage, distribution, and sale of natural gas. Its gas transmission, storage, and distribution system consists of 1,666 miles of transmission lines; 15 gas storage fields; 28,404 miles of distribution mains; and 8 compressor stations. The Enterprises segment is involved in the independent power production and marketing, including the development and operation of renewable generation. It owns interests in independent power plants totaling 1,335 megawatts. The company also operates an industrial bank providing unsecured consumer installment loans for financing home improvements. It serves 1.8 million electric customers and 1.8 million gas customers, including residential, commercial, and diversified industrial customers in Michigan's Lower Peninsula. CMS Energy Corporation was founded in 1987 and is headquartered in Jackson, Michigan.

Telefônica Brasil S.A. provides mobile and fixed telecommunications services to residential and corporate customers in Brazil. Its fixed line services portfolio includes local, domestic long-distance, and international long-distance calls; and mobile portfolio comprises voice and broadband Internet access through 3G, 4G, and 4.5G, as well as mobile value-added services and wireless roaming services. The company also offers data services, including broadband and mobile data services. In addition, it provides pay TV services through direct to home satellite technology, IPTV, and cable, as well as pay-per-view and video on demand services; network services, such as rental of facilities; other services comprising Internet access, private network connectivity, computer equipment leasing, extended, caller identification, voice mail, cellular blocker, and others; wholesale services, including interconnection services to users of other network providers; and digital services, such as entertainment, cloud, and financial services. Further, the company offers multimedia communication services, which include audio, data, voice and other sounds, images, texts, and other information, as well as sells devices, such as smartphones, broadband USB modems, and other devices. Additionally, it provides telecommunications solutions and IT support to various industries, such as retail, manufacturing, services, financial institutions, government, etc. Telefônica Brasil S.A. markets and sells its solutions through own stores, dealers, retail and distribution channels, door-to-door sales, and telesales. The company was formerly known as Telecomunicações de São Paulo S.A. - TELESP and changed its name to Telefônica Brasil S.A. in October 2011. The company was incorporated in 1998 and is headquartered in São Paulo, Brazil. Telefônica Brasil S.A. is a subsidiary of SP Telecomunicações Participações Ltda.

BT Group plc provides communications services worldwide. Its Consumer segment sells telephones, baby monitors, and Wi-Fi extenders through high street retailers, online BT Shop, and Website BT.com; and offers home phone, copper and fiber broadband, TV, and mobile services in various packages. The company's EE segment offers 2G, 3G, and 4G mobile network services; broadband, fixed-voice, and TV services; and postpaid and prepaid plans, and emergency services network. This segment also sells 4G mobile phones, tablets, connected devices, and mobile broadband devices from various manufacturers. Its Business and Public Sector segment provides fixed voice, mobility, fiber and connectivity, and networked IT services to retailers, utilities, public sector, healthcare, sports, construction, finance, and educational sectors. The company's Global Services segment offers business communications and ICT services comprising BT Connect, BT Security, BT One, BT Contact, BT Compute, BT Advise, and BT for financial markets. This segment serves approximately 5,500 customers in 180 countries. Its Wholesale and Ventures segment enables communications providers and other organizations to provide fixed or mobile phone services. Its ventures provide mass-market services, such as directory enquiries and payphones; and enterprise services comprising BT Fleet and BT Redcare. This segment also provides broadband and Ethernet, voice, hosted communication, mobile virtual network operator, managed solutions, machine-to-machine, roaming, and media services. The company's Openreach segment engages in the provision of services over the local access network; and installation and maintenance of fiber and copper communications networks that connect homes and businesses. The company was formerly known as Newgate Telecommunications Limited and changed its name to BT Group plc in September 2001. BT Group plc was incorporated in 2001 and is headquartered in London, the United Kingdom.

Avangrid, Inc. operates as an energy services holding company in the United States. It operates through two segments, Networks and Renewables. The company engages in the generation, transmission, and distribution of electricity, as well as distribution, transportation, and sale of natural gas. It also develops, constructs, and operates renewable energy generation facilities primarily using onshore wind power, as well as solar, biomass, and thermal power. The company delivers natural gas and electricity to residential, commercial, and institutional customers through its regulated utilities in New York, Maine, Connecticut, and Massachusetts; and sells its output to investor-owned utilities, public utilities, and other credit-worthy entities. In addition, it generates and provides power and other services to federal and state agencies, as well as institutional retail and joint action agencies; and delivers thermal output to wholesale customers in the Western United States. As of February 26, 2019, Avangrid, Inc. owned 8 electric and natural gas utilities, serving 3.2 million customers in New York and New England, as well as owned and operated 7.2 gigawatts of electricity capacity, primarily through wind power in 22 states. The company was founded in 1852 and is headquartered in Orange, Connecticut. Avangrid, Inc. is a subsidiary of Iberdrola, S.A.

Alliant Energy Corporation operates as a utility holding company that provides regulated electricity and natural gas services in the Midwest region of the United States. It operates through three segments: Electric, Gas, and Other. The company, through its subsidiary, Interstate Power and Light Company (IPL), primarily generates and distributes electricity, and distributes and transports natural gas to retail customers in Iowa; sells electricity to wholesale customers in Minnesota, Illinois, and Iowa; and generates and distributes steam in Cedar Rapids, Iowa. Alliant Energy Corporation, through its subsidiary, Wisconsin Power and Light Company (WPL), generates and distributes electricity, and distributes and transports natural gas to retail customers in Wisconsin; and sells electricity to wholesale customers in Wisconsin. As of December 31, 2017, IPL supplied electricity to 490,000 retail customers and natural gas to 220,000 retail customers; and WPL supplied electricity to 470,000 retail customers and natural gas to 190,000 retail customers. It offers electric utility services to retail customers in the farming, agriculture, industrial manufacturing, chemical, and paper industries. In addition, the company holds investments in various businesses, which provide freight services through a short-line railway between Cedar Rapids and Iowa City, Iowa; a barge terminal and hauling services on the Mississippi River; and other transfer and storage services. Further, it owns a non-regulated 347 megawatt (MW) natural gas-fired electric generating unit near Sheboygan Falls, Wisconsin; and a non-regulated 99 MW Franklin County wind farm located in Franklin County, Iowa. Alliant Energy Corporation was founded in 1917 and is headquartered in Madison, Wisconsin.

ONEOK, Inc., together with its subsidiaries, engages in the gathering, processing, storage, and transportation of natural gas in the United States. It operates through Natural Gas Gathering and Processing, Natural Gas Liquids, and Natural Gas Pipelines segments. The company owns natural gas gathering pipelines and processing plants in the Mid-Continent and Rocky Mountain regions. It also gathers, treats, fractionates, and transports natural gas liquids (NGL), as well as stores, markets, and distributes NGL products. The company owns NGL gathering and distribution pipelines in Oklahoma, Kansas, Texas, New Mexico, Montana, North Dakota, Wyoming, and Colorado; terminal and storage facilities in Missouri, Nebraska, Iowa, and Illinois; and NGL distribution and refined petroleum products pipelines in Kansas, Missouri, Nebraska, Iowa, Illinois, and Indiana, as well as owns and operates truck- and rail-loading, and -unloading facilities that interconnect with its NGL fractionation and pipeline assets. In addition, it operates regulated interstate and intrastate natural gas transmission pipelines and natural gas storage facilities. Further, the company owns and operates a parking garage in downtown Tulsa, Oklahoma; and leases excess office space to others. It serves integrated and independent exploration and production companies; NGL and natural gas gathering and processing companies; crude oil and natural gas production companies; propane distributors; ethanol producers; and petrochemical, refining, and NGL marketing companies, as well as natural gas distribution companies, electric-generation facilities, industrial companies, municipalities, producers, processors, and marketing companies. The company was founded in 1906 and is headquartered in Tulsa, Oklahoma.

Atmos Energy Corporation, together with its subsidiaries, engages in the regulated natural gas distribution, and pipeline and storage businesses in the United States. It operates through Distribution, and Pipeline and Storage segments. The Distribution segment is involved in the regulated natural gas distribution and related sales operations in eight states. This segment distributes natural gas to approximately three million residential, commercial, public authority, and industrial customers. As of September 30, 2018, it owned 70,071 miles of underground distribution and transmission mains. The Pipeline and Storage segment engages in the pipeline and storage operations. This segment transports natural gas for third parties and manages five underground storage reservoirs in Texas; and provides ancillary services to the pipeline industry, including parking arrangements, lending, and inventory sales. It owns 5,678 miles of gas transmission lines. The company was founded in 1906 and is headquartered in Dallas, Texas.

Brookfield Infrastructure Partners L.P. owns and operates utilities, transport, energy, and data infrastructure businesses. The Utilities segment operates approximately 2,000 kilometers (km) of natural gas transportation pipelines in the states of Rio de Janeiro, Sao Paulo, and Minas Gerais; approximately 2,200 km of electricity transmission lines in North and South America; and approximately 6.6 million electricity and natural gas connections and 1.1 million smart meters, as well as operates metallurgical coal export terminals. The Transport segment offers transportation, storage, and handling services for freight, bulk commodities, and passengers through a network of 5,500 km of track network in south of Western Australia; approximately 4,800 km of rail in South America; approximately 4,200 km of motorways in Brazil, Chile, Peru, and India; and 37 port terminals in North America, the United Kingdom, Australia, and Europe. The Energy segment offers natural gas midstream and storage services through approximately 15,000 km of natural gas transmission pipelines; and 600 billion cubic feet of natural gas storage in the United States and Canada. This segment also provides heating and cooling services to customers, and energy solutions, as well as serves approximately 24,900 natural gas, water, and wastewater connections. In addition, the Energy segment provides water heater rental; heating, ventilation, and air conditioner rental; and other home services in Canada and the United States, as well as 270,000 contracted sub-metering services with in Canada. The Data Infrastructure segment offers services and critical infrastructure to the media broadcasting and telecom sectors; and data storage services and infrastructure to enterprise customers. The company was founded in 2007 and is based in Hamilton, Bermuda. Brookfield Infrastructure Partners L.P. is a subsidiary of Brookfield Asset Management Inc.

Telecom Italia S.p.A., together with its subsidiaries, provides fixed and mobile telecommunications services in Europe, South America, and the Mediterranean Basin. The company operates through Domestic, Brazil, and Other Operations segments. It offers fixed and mobile voice and Internet, and public telephony services, as well as products managed and developed for individuals and families; and voice, data, and Internet services and products, and information and communications technology solutions for small and medium-size enterprises, small offices/home offices, the public sector, large accounts, and enterprises in the fixed and mobile telecommunications markets. The company also manages and develops a portfolio of regulated and unregulated wholesale services for fixed and mobile telecommunications operators; provision of infrastructure for housing radio transmission equipment of mobile telephone networks; and development, engineering, building, and operation of network infrastructures, information technology (IT), real estate properties, and plant engineering. In addition, it engages in customer care, operating credit support, loyalty, and retention activities; and staff functions and other support activities. Further, the company offers office products and services for IT sector. The company was founded in 1908 and is headquartered in Rome, Italy.

CenterPoint Energy, Inc. operates as a public utility holding company in the United States. The company's Electric Transmission & Distribution segment offers electric transmission and distribution services to retail electric providers, municipalities, electric cooperatives, and other distribution companies. As of December 31, 2018, it owned 235 substation sites with a total installed rated transformer capacity of 68,338 megavolt amperes; and 15 regional service centers located on a total of 332 acres of land. Its Natural Gas Distribution segment sells regulated intrastate natural gas; provides natural gas transportation and storage services for residential, commercial, industrial, and transportation customers; and offers unregulated services comprising residential appliance repair and maintenance services. As of December 31, 2018, this segment owned approximately 76,000 linear miles of natural gas distribution mains. The company's Energy Services segment provides physical natural gas supplies primarily to commercial and industrial customers, and electric and natural gas utilities; natural gas management services; and physical delivery services, as well as procures and optimizes transportation and storage assets. As of December 31, 20118, it owned and operated 200 miles of intrastate pipeline in Louisiana and Texas; and leases transportation capacity on various interstate and intrastate pipelines, and storage. Its Midstream Investment segment offers natural gas and crude oil gathering, and natural gas processing services to its producer customers; and interstate and intrastate natural gas pipeline transportation and storage services to its producer, power plant, local distribution company, and industrial end-user customers. The company was founded in 1882 and is headquartered in Houston, Texas.

Essential Utilities, Inc., through its subsidiaries, operates regulated utilities that provide water or wastewater services in the United States. It offers water services through operating and maintenance contracts with municipal authorities and other parties. The company also provides non-utility raw water supply services for firms in the natural gas drilling industry; and water and sewer line protection solutions, and repair services to households through third-party. It serves approximately three million residential water, commercial water, fire protection, industrial water, wastewater, and other water and utility customers in Pennsylvania, Ohio, Texas, Illinois, North Carolina, New Jersey, Indiana, and Virginia. The company was formerly known as Aqua America, Inc. and changed its name to Essential Utilities, Inc. in February 2020. Essential Utilities, Inc. was founded in 1886 and is headquartered in Bryn Mawr, Pennsylvania.

Korea Electric Power Corporation, an integrated electric utility company, generates, transmits, and distributes electricity in Korea and internationally. The company operates through Transmission and Distribution, Electric Power Generation (Nuclear), Electric Power Generation (Non-nuclear), Plant Maintenance & Engineering Service, and Others segments. It generates power from nuclear, coal, oil, liquefied natural gas, internal combustion, combined-cycle, integrated gasification combined cycle, hydro, wind, solar, fuel cell, biogas, and other sources. As of December 31, 2017, the company had a total of 679 generation units, including nuclear, thermal, hydroelectric, and internal combustion units with an installed generation capacity of 82,132 megawatts. Its transmission system consisted of 33,955 circuit kilometers of lines of 765 kilovolts and others, including high-voltage direct current lines, as well as 839 substations with an installed transformer capacity of 311,869 megavolt-amperes; and distribution system included 115,945 megavolt-amperes of transformer capacity and 9,287,199 units of support with a total line length of 483,467 circuit kilometers. The company provides electricity to residential, commercial, educational, industrial, agricultural, street lighting, and overnight power usage. It also offers utility plant maintenance and architectural engineering, information, communication line leasing, resources development, and fly ashes recycling services, as well as sells nuclear fuel. Korea Electric Power Corporation was founded in 1961 and is headquartered in Naju, South Korea.

CPFL Energia S.A., through its subsidiaries, generates, transmits, distributes, and commercializes electricity to residential, industrial, and commercial customers in Brazil. The company generates electricity through wind, biomass, solar, and hydroelectric power plants. It also manufactures, commercializes, rents, and maintains electro-mechanical equipment; and offers administrative, call center, collection, IT, telecommunication, energy transmission, and energy efficiency management services, as well as maintenance services for energy generation companies. As of December 31, 2018, the company distributed electricity to approximately 9.6 million customers; and had 323,979 kilometers of distribution lines, which included 464,627 distribution transformers. It also has an installed capacity of 3,272 megawatts. The company was founded in 1998 and is headquartered in Campinas, Brazil. CPFL Energia S.A. is a subsidiary of State Grid Brazil Power Participações S.A.

Vistra Energy Corp., through its subsidiaries, engages in the integrated power business in Texas. The company operates through Wholesale Generation and Retail Electricity segments. The Wholesale Generation segment engages in the electricity generation, wholesale energy sales and purchases, commodity risk management, fuel production, and fuel logistics management activities. As of February 26, 2018, this segment had a fleet of generation facilities totaling approximately 14,000 megawatts of generation in Texas, including 2,300 megawatts fueled by nuclear power, 4,000 megawatts fueled by coal, and 7,500 megawatts fueled by natural gas. The Retail Electricity segment is involved in the retail sale of electricity and related services to residential, commercial, and industrial customers under the TXU Energy brand. This segment served approximately 1.7 million residential and business customers. The company was formerly known as TCEH Corp. and changed its name to Vistra Energy Corp. in November 2016. The company is based in Irving, Texas.

The AES Corporation operates as a diversified power generation and utility company. It owns and/or operates power plants to generate and sell power to customers, such as utilities, industrial users, and other intermediaries. The company also owns and/or operates utilities to generate or purchase, distribute, transmit, and sell electricity to end-user customers in the residential, commercial, industrial, and governmental sectors; and generates and sells electricity on the wholesale market. It uses a range of fuels to generate electricity, including natural gas, coal, pet coke, diesel, and oil, as well as renewables, such as hydro, solar, wind, energy storage, biomass, and landfill gas. The company owns and/or operates a generation portfolio of approximately 31,792 megawatts. It has operations in the United States, El Salvador, Chile, Colombia, Argentina, Brazil, Mexico, Central America, the Caribbean, Europe, and Asia. The company was formerly known as Applied Energy Services, Inc. and changed its name to The AES Corporation in April 2000. The AES Corporation was founded in 1981 and is headquartered in Arlington, Virginia.

Aqua America, Inc., through its subsidiaries, operates regulated utilities that provide water or wastewater services in the United States. It offers water services through operating and maintenance contracts with municipal authorities and other parties. The company also provides non-utility raw water supply services for firms in the natural gas drilling industry; and water and sewer line protection solutions, and repair services to households through third-party. It serves approximately three million residential water, commercial water, fire protection, industrial water, wastewater, and other water and utility customers in Pennsylvania, Ohio, Texas, Illinois, North Carolina, New Jersey, Indiana, and Virginia. The company was formerly known as Philadelphia Suburban Corporation and changed its name to Aqua America, Inc. in 2004. Aqua America, Inc. was founded in 1968 and is based in Bryn Mawr, Pennsylvania.

NiSource Inc., an energy holding company, operates as a regulated natural gas and electric utility company in the United States. The company operates in two segments, Gas Distribution Operations and Electric Operations. It provides natural gas service and transportation for residential, commercial, and industrial customers; generates, transmits, and distributes electricity; and wholesale and transmission transaction services. The company owns and operates 2 coal-fired electric generating stations with a capacity of 2,080 megawatts (MW); combined cycle gas turbine with a capacity of 571 MW; 3 gas-fired generating units with a capacity of 186 MW; and 2 hydroelectric generating plants with a capacity of 16 MW. It serves approximately 3.5 million natural gas customers in Ohio, Pennsylvania, Virginia, Kentucky, Maryland, Indiana, and Massachusetts; and 472,000 electricity customers in the northern part of Indiana. The company was formerly known as NIPSCO Industries, Inc. and changed its name to NiSource Inc. in April 1999. NiSource Inc. was founded in 1912 and is headquartered in Merrillville, Indiana.

Brookfield Renewable Partners L.P. owns a portfolio of renewable power generating facilities primarily in North America, Colombia, Brazil, Europe, India, and China. The company generates electricity through hydro, wind, solar, cogeneration, and biomass sources. Its portfolio consists of approximately 17,400 megawatts of installed capacity. Brookfield Renewable Partners Limited operates as the general partner of Brookfield Renewable Partners L.P. The company was formerly known as Brookfield Renewable Energy Partners L.P. and changed its name to Brookfield Renewable Partners L.P. in May 2016. Brookfield Renewable Partners L.P. was founded in 1999 and is headquartered in Hamilton, Bermuda.

Centrais Elétricas Brasileiras S.A. - Eletrobras, through its subsidiaries, engages in the generation, transmission, and distribution of electricity in Brazil. The company generates electricity through thermal, nuclear, wind, and hydroelectric plants. As of December 31, 2018, it owned and operated 32 hydroelectric plants with a total installed capacity of 44,221.05 megawatts; 105 thermal plants, including coal, and oil and gas power generation units with a total installed capacity of 2,403 megawatts; and 2 nuclear power plants comprising Angra I with an installed capacity of 640 megawatts and Angra II an installed capacity of 1,350 megawatts. It also operates 71,068 kilometers of transmission lines. The company was founded in 1962 and is based in Rio de Janeiro, Brazil.

Pinnacle West Capital Corporation, through its subsidiary, Arizona Public Service Company, provides retail and wholesale electric services primarily in the state of Arizona. It generates, transmits, and distributes electricity using coal, nuclear, gas, oil, and solar generating facilities. The company serves approximately 1.2 million customers. It owns or leases approximately 6,015 megawatts of regulated generation capacity. The company was incorporated in 1985 and is headquartered in Phoenix, Arizona.

Centrais Elétricas Brasileiras S.A. - Eletrobras, through its subsidiaries, engages in the generation, transmission, and distribution of electricity in Brazil. The company generates electricity through thermal, nuclear, wind, and hydroelectric plants. As of December 31, 2017, it owned and operated 44 hydroelectric plants and held interests in various other plants with a total installed capacity of 42,350 Megawatts (MW); 112 thermal plants, including coal, and oil and gas power generation units with an installed capacity of 2,646 MW; and 2 nuclear power plants with an installed capacity of 1,990 MW. The company also operates 71,684 kilometers of transmission lines and 6 power distributors that serve approximately 4.4 million consumers. Centrais Elétricas Brasileiras S.A. - Eletrobrás was founded in 1962 and is based in Rio de Janeiro, Brazil.

NRG Energy, Inc., together with its subsidiaries, operates as an energy company in the United States. The company is involved in the producing, selling, and delivering electricity and related products and services to 3.1 million residential, industrial, and commercial consumers. It generates electricity using natural gas, coal, oil, solar, nuclear, wind, fossil fuel, and nuclear sources. The company also provides system power, distributed generation, solar and wind products, backup generation, storage and distributed solar, demand response, energy efficiency, advisory, and on-site energy solutions; and carbon management and specialty services. In addition, it trades in electric power, natural gas, and related commodity and financial products, including forwards, futures, options, and swaps. Further, the company supplies fuels; provides transportation services; and directly sells energy, services, and products and services to retail customers under the NRG, Reliant, and other names. It develops, constructs, owns, and operates natural gas, coal, oil, solar, nuclear, wind, fossil fuel, and nuclear plants with generation capacity of 23,000 megawatts. The company was founded in 1989 and is headquartered in Princeton, New Jersey.

Vectren Corporation provides energy delivery services to residential, commercial, and industrial and other contract customers. The company offers natural gas distribution and transportation services, and electric transmission and distribution services; and owns and operates coal-fired, natural gas or oil-fired, and landfill gas electric generating facilities with an installed generating capacity of 1,248 megawatts. Its electric transmission system consists of approximately 1,028 circuit miles of 345, 138, and 69 kilovolt lines, and 34 substations; and distribution system comprises 4,543 circuit miles of lower voltage overhead lines and 462 trench miles of conduit containing 2,405 circuit miles of underground distribution cable, as well as 85 distribution substations and 54,919 distribution transformers. The company also provides underground pipeline construction and repair services; and energy performance contracting and sustainable infrastructure, such as renewables, distributed generation, and combined heat and power projects, as well as invests in energy-related opportunities and services. It serves various industries comprising automotive assembly, parts, and accessories; feed, flour, and grain processing; metal castings and plastic products; gypsum products; electrical equipment, metal specialties, and glass and steel finishing; pharmaceutical and nutritional products; gasoline and oil products; ethanol; and coal mining. The company supplies natural gas services to approximately 1,022,000 customers in Indiana and Ohio; and electric services to approximately 145,200 customers in Indiana. Vectren Corporation was incorporated in 1999 and is headquartered in Evansville, Indiana.

Companhia de Saneamento Básico do Estado de São Paulo-SABESP provides basic and environmental sanitation services, and supplies treated water and sewage services on a wholesale basis to residential, commercial, industrial, and governmental customers in the state of São Paulo. It provides water supply, sanitary sewage, urban rainwater management and drainage, urban cleaning, and solid waste management services, as well as related activities, including the planning, operation, maintenance, and commercialization of energy. As of December 31, 2017, the company provided water services through 8.9 million water connections to approximately 24.9 million people; and sewage services through 7.3 million sewage connections to approximately 21.6 million people, as well as operated 74,396 kilometers of water pipes and water transmission lines, and 50,991 kilometers of sewer lines. It also offers water and/or sewage services to other municipalities through special purpose companies. The company was founded in 1954 and is headquartered in São Paulo, Brazil.

Algonquin Power & Utilities Corp., through its subsidiaries, owns and operates a portfolio of regulated and non-regulated generation, distribution, and transmission utility assets in Canada and the United States. It generates and sells electrical energy through a portfolio of non-regulated renewable and clean energy power generation facilities. The company also owns and operates hydroelectric, wind, solar, and thermal facilities with a combined gross generating capacity of approximately 1.5 gigawatt; a portfolio of regulated electric, natural gas, water distribution, and wastewater collection utility systems. It serves approximately 266,000 electric connections; 338,000 natural gas connections; and 164,000 regulated water distribution and wastewater collection utility systems in the states of California, New Hampshire, Missouri, Kansas, Oklahoma, Arkansas, Georgia, Illinois, Iowa, Massachusetts, Arizona, and Texas. The company was incorporated in 1988 and is headquartered in Oakville, Canada.

SCANA Corporation, through its subsidiaries, engages in the generation, transmission, distribution, and sale of electricity to retail and wholesale customers in the United States. The company owns nuclear, coal, hydro, natural gas, oil, biomass, and solar generating facilities. It also purchases, sells, and transports natural gas; and offers energy-related services. As of December 31, 2017, the company provided electricity to approximately 719,000 customers; and natural gas to approximately 931,000 retail customers in South Carolina and North Carolina, as well as marketed natural gas to approximately 425,000 customers in Georgia. It serves municipalities, electric cooperatives, other investor-owned utilities, registered marketers, and federal and state electric agencies, as well as chemical, educational service, paper product, food product, lumber and wood product, health service, textile manufacturing, rubber and miscellaneous plastic product, automotive and tire, and fabricated metal product industries. The company was founded in 1924 and is based in Cayce, South Carolina.

UGI Corporation distributes, stores, transports, and markets energy products and related services in the United States and internationally. The company operates through four segments: AmeriGas Propane, UGI International, Midstream & Marketing, and UGI Utilities. It distributes propane to approximately 1.7 million residential, commercial/industrial, motor fuel, agricultural, and wholesale customers through 1,900 propane distribution locations; and sells, installs, and services propane appliances, including heating systems and propane-powered generators. The company also distributes liquefied petroleum gases (LPG) to residential, commercial, industrial, agricultural, wholesale and automobile fuel customers; and provides logistics, storage, and other services to third-party LPG distributors. In addition, it engages in the retail sale of natural gas, liquid fuels, and electricity to approximately 12,500 residential, commercial, and industrial customers at approximately 35,500 locations. Further, the company distributes natural gas to approximately 642,000 customers in the portions of 44 eastern and central Pennsylvania counties through its distribution system of 12,300 miles of gas mains; and supplies electricity to approximately 62,000 customers in northeastern Pennsylvania through 2,200 miles of lines and 13 substations. Additionally, it operates electric generation facilities, which include coal-fired, landfill gas-fueled, solar-powered, and natural gas-fueled facilities; a natural gas liquefaction, storage, and vaporization facility; propane storage and propane-air mixing stations; and rail transshipment terminals. It also manages natural gas pipeline and storage contracts; develops, owns, and operates pipelines, gathering infrastructure, and gas storage facilities; and offers heating, ventilation, air conditioning, refrigeration, mechanical, and electrical contracting services. UGI Corporation was founded in 1882 and is based in King of Prussia, Pennsylvania.

OGE Energy Corp., together with its subsidiaries, operates as an energy and energy services provider that provides physical delivery and related services for electricity and natural gas primarily in the south central United States. It operates in two segments, Electric Utility and Natural Gas Midstream Operations. The Electric Utility segment generates, transmits, distributes, and sells electric energy. This segment furnishes retail electric service in 267 communities and their contiguous rural and suburban areas; and owns and operates coal-fired, natural gas-fired, wind-powered, and solar-powered generating assets. Its service area covers 30,000 square miles in Oklahoma and western Arkansas, including Oklahoma City in Oklahoma; and Fort Smith, Arkansas. The Natural Gas Midstream Operations segment engages in gathering, processing, transporting, and storing natural gas; and the provision of crude oil gathering services, and interstate and intrastate natural gas pipeline transportation and storage services primarily to its producer, power plant, local distribution company, and industrial end-user customers. As of December 31, 2018, the company owned and operated interconnected electric generation, transmission, and distribution systems, including 11 generating stations with an aggregate capability of 6,616 megawatts; and transmission systems comprising 52 substations and 5,100 structure miles of lines in Oklahoma, and 7 substations and 277 structure miles of lines in Arkansas. Its distribution systems include 345 substations; 29,345 structure miles of overhead lines; 2,940 miles of underground conduit; and 10,932 miles of underground conductors in Oklahoma, as well as 30 substations, 2,786 structure miles of overhead lines, 297 miles of underground conduit, and 685 miles of underground conductors in Arkansas. The company was founded in 1902 and is headquartered in Oklahoma City, Oklahoma.

Huaneng Power International, Inc., through its subsidiaries, generates and sells electricity and heat to the regional or provincial grid companies in the People's Republic of China and Singapore. It is involved in the development, investment, construction, operation, and management of power plants and related projects; and generation, wholesale, and retail of power and other relating utilities. The company generates power from coal, wind, gas, oil, biomass, solar, and hydro resources. It is also involved in the sale of coal ash and lime; provision of loading warehousing and conveying services; photovoltaic power generation projects development and construction; and provision of thermal energy and cold energy services, as well as thermal heating services. In addition, the company engages in the repair of power equipment; provision of water supply and transportation services; construction and operation of electricity distribution networks and heating pipe networks; power supply, energy transmission, and substation project contracting activities; cargo transportation along domestic coastal areas; port management, investment, and development activities; and port provision, and cargo loading and storage activities. Further, it is involved in the aquaculture and agriculture irrigation activities, as well as provides environment engineering, waste recycling consultancy, and industrial waste management and recycling services. Additionally, it sells raw and processed coal; and provides central heat, and plumbing and pipe installation services, as well as desalinated water. As of March 31, 2018, the company had controlled generating capacity of 104,301 megawatts and a total generating capacity of 91,783 megawatts. Huaneng Power International, Inc. was founded in 1994 and is headquartered in Beijing, the People's Republic of China.

PG&E Corporation, through its subsidiary, Pacific Gas and Electric Company, engages in the sale and delivery of electricity and natural gas to residential, commercial, industrial, and agricultural customers in northern and central California, the United States. The company's electricity distribution network consists of approximately 107,000 circuit miles of distribution lines, 50 transmission switching substations, and 769 distribution substations; and electricity transmission network comprises approximately 18,000 circuit miles of interconnected transmission lines and 84 electric transmission substations. Its natural gas system consists of approximately 43,100 miles of distribution pipelines, approximately 6,400 miles of backbone and local transmission pipelines, and various storage facilities. The company also owns and operates nuclear, hydroelectric, fossil fuel-fired, and solar electricity generation facilities. PG&E Corporation was incorporated in 1995 and is based in San Francisco, California. On January 29, 2019, PG&E Corporation Inc. filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the Northern District of California.

Enel Generación Chile S.A., an electricity utility company, engages in the generation, transmission, and distribution of electricity in Chile. The company generates electricity through hydro, thermal, and wind power sources. As of December 31, 2017, it had 6,351 megawatts of installed capacity with 28 generation facilities and a total of 111 generation units. The company supplies its electricity to regulated electricity distribution companies; unregulated industrial firms primarily in the mining, pulp, and steel sectors; and the pool market. It is also involved in exploitation and transportation of natural gas; and provision of engineering consulting services. The company was formerly known as Empresa Nacional de Electricidad S.A. and changed its name to Enel Generación Chile S.A. in November 2016. The company was founded in 1943 and is headquartered in Santiago, Chile. Enel Generación Chile S.A. is a subsidiary of Enel Chile S.A.

IDACORP, Inc., through its subsidiary, Idaho Power Company, engages in the generation, transmission, distribution, purchase, and sale of electric energy in the United States. The company operates 17 hydroelectric generating plants located in southern Idaho and eastern Oregon; 3 natural gas-fired plants in southern Idaho; and interests in 3 coal-fired steam electric generating plants located in Wyoming, Nevada, and Oregon. As of December 31, 2018, it also had approximately 4,816 pole-miles of high-voltage transmission lines; 24 step-up transmission substations located at power plants; 21 transmission substations; 9 switching stations; 32 mixed-use transmission and distribution substations; 183 energized distribution substations; and 27,569 pole-miles of distribution lines, as well as provides electric utility services to approximately 558,000 retail customers in southern Idaho and eastern Oregon. The company's principal commercial and industrial customers are involved in food processing, electronics and general manufacturing, agriculture, health care, and winter recreation activities. IDACORP, Inc., through its other subsidiaries, invests in housing and other real estate investments. The company was founded in 1915 and is headquartered in Boise, Idaho.

TerraForm Power, Inc., together with its subsidiaries, owns and operates clean power generation assets. The company operates through three segments: Solar, Wind, and Regulated Solar and Wind. As of December 31, 2018, its portfolio consisted of solar and wind projects located in the United States, Canada, Spain, Chile, Portugal, the United Kingdom, and Uruguay with a combined nameplate capacity of 3,738 megawatts. The company was formerly known as SunEdison Yieldco, Inc. and changed its name to TerraForm Power, Inc. in May 2014. TerraForm Power, Inc. was founded in 2014 and is headquartered in New York, New York.

MDU Resources Group, Inc. engages in regulated energy delivery, and construction materials and services businesses in the United States. It operates through five segments: Electric, Natural Gas Distribution, Pipeline and Midstream, Construction Materials and Contracting, and Construction Services. The Electric segment generates, transmits, and distributes electricity in Montana, North Dakota, South Dakota, and Wyoming. As of December 31, 2018, it served 143,022 residential, commercial, industrial, and municipal customers in 184 communities and adjacent rural areas. The Natural Gas Distribution segment distributes natural gas in Montana, North Dakota, South Dakota, and Wyoming, as well as Idaho, Minnesota, Oregon, and Washington; and offers related value-added services. It serves 957,727 residential, commercial, and industrial customers in 339 communities and adjacent rural areas. The Pipeline and Midstream segment provides natural gas transportation, underground storage, and gathering services primarily in the Rocky Mountain and northern Great Plains regions. It also offers cathodic protection and other energy-related services. The Construction Materials and Contracting segment mines, processes, and sells construction aggregates; produces and sells asphalt mix; and supplies ready-mixed concrete and cement in the central, southern, and western United States, as well as Alaska and Hawaii. The Construction Services segment designs, constructs, and maintains overhead and underground electrical distribution and transmission lines, substations, external lighting, traffic signalization, and gas pipelines; electrical and communication wiring and infrastructure, and fire suppression systems; and renewable energy projects. It also offers utility excavation, and mechanical piping and services; and manufactures and distributes transmission line construction equipment and other supplies. The company was founded in 1924 and is headquartered in Bismarck, North Dakota.

Telecom Argentina S.A., together with its subsidiaries, provides telecommunications services in Argentina and internationally. The company offers telephone services, including local, domestic, and international long-distance telephone services, as well as public telephone services; interconnection services, such as access, termination, and long-distance transport of calls; information and communication technology services comprising datacenter services, and telecommunications consulting and value-added solutions; and call waiting, call forwarding, conference calls, caller ID, voice mail, itemized billing, and maintenance services, as well as sells equipment. It also provides mobile telecommunications services that include voice communications, high-speed mobile Internet content and applications download, mobile multimedia, short message, online streaming, corporate email, social network access, and other services; and sells mobile communication devices that include handsets, Modems mifi and wingles, smart watches under the Personal brand. In addition, the company offers data transmission and Internet services comprising broadband, Internet dedicated lines, private networks, national and international video streaming, transportation of radio and TV signals, and video conferencing services; and programming and other cable television services. The company was formerly known as Cablevisión S.A. and changed its name to Telecom Argentina S.A. in January 2018. Telecom Argentina S.A. was founded in 1979 and is based in Buenos Aires, Argentina.

Enel Chile S.A., an electricity utility company, engages in the generation, transmission, and distribution of electricity in Chile. The company operates through Generation Business and Distribution Business segments. It transmits and distributes electricity in 33 municipalities of the Santiago metropolitan region. As of December 31, 2016, the company had 6,351 megawatts of installed capacity with 111 generation units, including 38 hydroelectric, 22 thermal, and 51 wind powered generation units. It distributed electricity to approximately 1.8 million customers, including residential, commercial, industrial, governmental, and toll customers. The company also provides consulting, management, administration, and contract operation services related to information systems, technological information, telecommunications, and control systems in South America; and develops real estate projects in Chile. The company was formerly known as Enersis Chile S.A. and changed its name to Enel Chile S.A. in November 2016. The company was founded in 2016 and is based in Santiago, Chile. Enel Chile S.A. is a subsidiary of Enel Iberoamérica S.R.L.

ONE Gas, Inc. operates as a regulated natural gas distribution utility company in the United States. The company operates through three divisions: Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service. It serves residential, commercial, and industrial and transportation customers, as well as provides natural gas distribution services to wholesale and public authority customers. As of December 31, 2017, it had 50.4 billion cubic feet of natural gas storage capacity. The company provides natural gas distribution services to approximately 2 million customers. ONE Gas, Inc. was founded in 1906 and is headquartered in Tulsa, Oklahoma.

Hawaiian Electric Industries, Inc., through its subsidiaries, engages in the electric utility and banking businesses primarily in the state of Hawaii. The company's Electric Utility segment is involved in generating, purchasing, transmitting, distributing, and selling electric energy. Its renewable energy sources and potential sources include wind, solar, photovoltaic, geothermal, wave, hydroelectric, municipal waste, and other bio fuels. This segment distributes and sells electricity on the islands of Oahu, Hawaii, Maui, Lanai, and Molokai; and serves suburban communities, resorts, the United States armed forces installations, and agricultural operations. Its Bank segment operates a savings bank that offers banking and other financial services, including deposit products, such as savings accounts and checking accounts; and loans comprising residential and commercial real estate, residential mortgage, construction and development, multifamily residential and commercial real estate, consumer, and commercial loans to consumers and business. This segment operates 49 branches, including 34 branches in Oahu, 6 branches in Maui, 5 branches in Hawaii, 3 branches in Kauai, and 1 branch in Molokai. The company's Other segment focuses on investing in non-regulated renewable energy and infrastructure in the State of Hawaii. Hawaiian Electric Industries Inc. was founded in 1891 and is headquartered in Honolulu, Hawaii.

Southwest Gas Holdings, Inc., through its subsidiaries, purchases, distributes, and transports natural gas in Arizona, Nevada, and California. The company operates through two segments, Natural Gas Operations and Utility Infrastructure Services. As of December 31, 2018, it had 2,047,000 residential, commercial, industrial, and other natural gas customers. The company also provides trenching and installation, replacement, and maintenance services for energy distribution systems; industrial construction solutions; and electrical distribution and transmission utility infrastructure services in the Gulf Coast and Mid-Atlantic region. The company also serves customers in the provinces of British Columbia and Ontario in Canada. Southwest Gas Holdings, Inc. was founded in 1931 and is headquartered in Las Vegas, Nevada.

Portland General Electric Company, an integrated electric utility company, engages in the generation, wholesale purchase, transmission, distribution, and retail sale of electricity in the state of Oregon. The company operates seven thermal plants; seven hydroelectric plants; and two wind farms. As of December 31, 2018, it owned an electric transmission system consisting of 1,256 circuit miles, including 287 circuit miles of 500 kilovolt line, 410 circuit miles of 230 kilovolt line, and 561 miles of 115 kilovolt line. It has 27,627 circuit miles of distribution lines. The company also purchases and sells electricity and natural gas in the wholesale market to utilities and power marketers in the United States and Canada. It serves approximately 885,000 residential, commercial, and industrial customers. The company was founded in 1930 and is headquartered in Portland, Oregon.

National Fuel Gas Company operates as a diversified energy company. It operates through five segments: Exploration and Production, Pipeline and Storage, Gathering, Utility, and Energy Marketing. The Exploration and Production segment explores for, develops, and produces natural gas and oil in California and in the Appalachian region of the United States. As of September 30, 2018, it had proved developed and undeveloped reserves of 27,663 thousand barrels of oil and 2,357,342 million cubic feet of natural gas. The Pipeline and Storage segment provides interstate natural gas transportation and storage services through an integrated gas pipeline system extending from southwestern Pennsylvania to the New York-Canadian border, and eastward to Ellisburg and Leidy, Pennsylvania; and owns and operates 28 underground natural gas storage fields, as well as 3 other underground natural gas storage fields. This segment also transports natural gas for National Fuel Gas Distribution Corporation, as well as for other utilities, industrial companies, and power producers in New York State; and owns and operates the Empire Pipeline, a 266-mile pipeline system. The Gathering segment builds, owns, and operates natural gas processing and pipeline gathering facilities in the Appalachian region. The Utility segment sells natural gas or provides natural gas transportation services to approximately 750,200 customers in Buffalo, Niagara Falls, and Jamestown, New York; and Erie and Sharon, Pennsylvania. The Energy Marketing segment markets natural gas to industrial, wholesale, commercial, public authority, and residential customers primarily in western and central New York, and northwestern Pennsylvania. As of September 30, 2018, the company also owned approximately 94,000 acres of timber property; and managed approximately 3,000 additional acres of timber cutting rights. National Fuel Gas Company was founded in 1902 and is headquartered in Williamsville, New York.

Black Hills Corporation, through its subsidiaries, operates as an electric and natural gas utility company in the United States. It operates through Electric Utilities, Gas Utilities, Power Generation, and Mining segments. The Electric Utilities segment generates, transmits, and distributes electricity to approximately 212,000 electric customers in Colorado, Montana, South Dakota, and Wyoming, as well as provides electrical system construction services to large industrial customers. This segment owns 939 megawatts of generation capacity and 8,858 miles of electric transmission and distribution lines. The Gas Utilities segment distributes natural gas to approximately 1,054,000 natural gas utility customers in Arkansas, Colorado, Iowa, Kansas, Nebraska, and Wyoming. It also provides appliance repair services to residential customers through company technicians and third-party service providers; and constructs and maintains gas infrastructure facilities for gas transportation customers. This segment owns and operates approximately 4,700 miles of intrastate gas transmission pipelines; 41,158 miles of gas distribution mains and service lines; 7 natural gas storage sites; and approximately 45,000 horsepower of compression and 600 miles of gathering lines. The Power Generation segment produces electric power through wind, natural gas, and coal generating plants; and sells the electric capacity and energy primarily to utilities under long-term contracts. The Mining segment produces coal at its coal mine located near Gillette, Wyoming; and sells the coal to electric generation facilities. Black Hills Corporation was founded in 1941 and is headquartered in Rapid City, South Dakota.

Spire Inc., through its subsidiaries, engages in the purchase, retail distribution, and sale of natural gas to residential, commercial, industrial, and other end-users of natural gas in the United States. The company operates through two segments, Gas Utility and Gas Marketing. It is also involved in marketing natural gas; and provision of energy services on non-regulated basis to on-system utility transportation customers, as well as to retail and wholesale customers. In addition, the company engages in the transportation of propane through its propane pipeline; compression of natural gas; risk management; and other activities. Further, it provides physical natural gas storage services. The company was formerly known as The Laclede Group, Inc. and changed its name to Spire Inc. in April 2016. Spire Inc. was founded in 1857 and is based in St. Louis, Missouri.

VEON Ltd., through its subsidiaries, provides mobile and fixed-line telecommunications services. It offers voice and data telecommunication services through a range of mobile and fixed-line technologies. The company provides value added services, including short messages, multimedia messages, caller number identification, call waiting, data transmission, mobile internet, downloadable content, mobile finance services, machine-to-machine, and other services; national and international roaming services; wireless Internet access and mobile financial services; and mobile bundles and call completion services. It also offers fixed-line telecommunication services, such as voice, data, and Internet services; and PSTN-fixed telephony, Internet, data transmission and network access, domestic and international voice termination, and IPLC and TCP/IP international transit services for corporations, operators, and consumers, as well as sells equipment and accessories. The company provides its services under the Beeline, Kyivstar, Jazz, Djezzy, and banglalink brands in Russia, Pakistan, Algeria, Uzbekistan, Ukraine, Bangladesh, Kazakhstan, Kyrgyzstan, Armenia, and Georgia. It serves approximately 212 million customers. The company was formerly known as VimpelCom Ltd. and changed its name to VEON Ltd. in March 2017. VEON Ltd. was founded in 1992 and is headquartered in Amsterdam, the Netherlands.

Companhia Paranaense de Energia - COPEL engages in the generation, transmission, distribution, and sale of electricity to industrial, residential, commercial, rural, and other customers primarily in the State of Paraná, Brazil. As of December 31, 2017, the company operated 17 hydroelectric plants, 12 wind plants, and 1 thermoelectric plant with a total installed capacity of 5,024.0 megawatts; and owned and operated 2,698.3 kilometers of transmission lines and 196,951.2 kilometers of distribution lines. It holds concessions to distribute electricity in 394 municipalities in the State of Paraná and in the municipality of Porto União in the State of Santa Catarina. The company also provides telecommunication services to corporate clients, including supermarkets, universities, banks, Internet service providers, and television networks, as well as to retail clients; and broadband Internet access to public elementary and middle schools. In addition, it supplies piped gas to 39,377 customers, including thermoelectric plants, cogeneration plants, gas stations, other businesses, and residences through a gas distribution network covering 812 kilometers in the State of Paraná. Companhia Paranaense de Energia - COPEL was founded in 1954 and is headquartered in Curitiba, Brazil.

Companhia Energética de Minas Gerais, through its subsidiaries, engages in the generation, transmission, distribution, and sale of electricity in Brazil. The company generates electricity through renewable energy sources, such as water, wind, sun, and biomass; or non-renewable sources, including fossil and nuclear fuels. As of December 31, 2016, it operated hydroelectric plants, thermoelectric plants, and solar plants with a total installed capacity of approximately 8,000 megawatts in 10 states of Brazil. It is also involved in the telecommunications and energy solutions consulting businesses; exploitation of natural gas; sale and trading of electricity; and acquisition, transport, and distribution of gas and its subproducts and derivatives, as well as provision of technology systems and systems for operational management of public service concessions, including companies operating in electricity, gas, water and sewerage, and other utility companies. The company was founded in 1952 and is headquartered in Belo Horizonte, Brazil.

PNM Resources, Inc., through its subsidiaries, engages in the energy and energy-related businesses in the United States. It operates through Public Service Company of New Mexico (PNM) and Texas-New Mexico Power Company (TNMP) segments. The PNM segment is primarily involved in the generation, transmission, and distribution of electricity. It generates electricity using coal, natural gas and oil, nuclear fuel, solar, wind, and geothermal energy sources. As of December 31, 2018, this segment had owned or leased facilities with a total net generation capacity of 2,102 megawatts; and owned 3,206 miles of electric transmission lines, 6,067 miles of distribution overhead lines, 5,885 miles of underground distribution lines, and 255 substations. It also owns and leases office and other equipment, office space, vehicles, and real estate. The TNMP segment provides regulated transmission and distribution services. As of December 31, 2018, this segment owned 997 miles of overhead electric transmission lines, 7,151 miles of overhead distribution lines, 1,260 miles of underground distribution lines, and 122 substations. It also owns and leases vehicles, service facilities, and office locations throughout its service territory. The company serves approximately 782,000 residential, commercial, and industrial customers, as well as end-users of electricity in New Mexico and Texas. PNM Resources, Inc. was founded in 1917 and is headquartered in Albuquerque, New Mexico.

New Jersey Resources Corporation, an energy services holding company, provides regulated gas distribution, and retail and wholesale energy services. The company operates through four segments: Natural Gas Distribution, Clean Energy Ventures, Energy Services, and Midstream segments. The Natural Gas Distribution segment offers regulated retail natural gas services to approximately 538,700 residential and commercial customers in central and northern New Jersey; provides storage management services; and participates in the off-system sales and capacity release markets. The Clean Energy Ventures segment invests in commercial and residential solar projects located in New Jersey; and onshore wind projects. The Energy Services segment provides unregulated wholesale energy management services to other energy companies and natural gas producers, as well as maintains and transacts a portfolio of physical assets consisting of natural gas storage and transportation contracts in the United States and Canada. The Midstream segment invests in natural gas transportation and storage facilities. The company offers heating, ventilation, and cooling services; holds commercial real estate properties; and provides solar equipment installation, and plumbing repair and installation services, as well as engages in the water appliance sale, installation, and servicing activities. New Jersey Resources Corporation was founded in 1922 and is based in Wall, New Jersey.

Atlantica Yield plc acquires, owns, and manages renewable energy, natural gas power, electric transmission lines, and water assets in the United States, Mexico, Peru, Chile, Uruguay, Spain, Algeria, and South Africa. As of December 31, 2018, it had 24 assets, including 1,496 megawatts (MW) of renewable energy generation assets comprising solar power and wind plants; 300 MW of natural gas power generation assets that produce electricity and steam from natural gas; 1,152 miles of electric transmission lines; and water desalination plants with an aggregate capacity of 10.5 million cubic feet per day. The company was formerly known as Abengoa Yield plc and changed its name to Atlantica Yield plc in May 2016. Atlantica Yield plc was founded in 2013 and is based in Brentford, the United Kingdom.

ALLETE, Inc. operates as an energy company. The company operates through three segments: Regulated Operations, ALLETE Clean Energy, and U.S. Water Services. It generates electricity from coal-fired, wind, hydroelectric, natural gas-fired, biomass co-fired, solar, and other sources. The company provides regulated utility electric, natural gas, and water services in northwestern Wisconsin to approximately 15,000 electric customers, 13,000 natural gas customers, and 10,000 water customers, as well as regulated utility electric services in northeastern Minnesota to approximately 145,000 retail customers and 16 non-affiliated municipal customers. It also owns and maintains electric transmission assets in Wisconsin, Michigan, Minnesota, and Illinois. In addition, the company focuses on developing, acquiring, and operating clean and renewable energy projects; and owns and operates approximately 545 megawatt of wind energy generation. Further, it offers integrated water management for industry by combining chemical, equipment, engineering, and service for customized solutions to reduce water and energy usage. Additionally, the company is involved in the coal mining operations in North Dakota; and real estate investment activities in Florida. The company owns and operates 159 substations with a total capacity of 8,531 megavolt amperes. It serves taconite mining, iron concentrate, paper, pulp and wood products, pipeline, and other industries. The company was founded in 1906 and is headquartered in Duluth, Minnesota.

American States Water Company, through its subsidiaries, provides water and electric services to residential, industrial, and other customers in the United States. It operates through three segments: Water, Electric, and Contracted Services. The company purchases, produces, distributes, and sells water, as well as distributes electricity. As of February 25, 2019, it provided water service to approximately 260,000 customers located throughout 10 counties in Northern, Coastal, and Southern California; and distributed electricity to 24,000 customers in the City of Big Bear and surrounding areas in San Bernardino County, California. The company also provides water and/or wastewater services, including the operation, maintenance, and construction of facilities at the water and/or wastewater systems at various military installations. American States Water Company was founded in 1929 and is based in San Dimas, California.

El Paso Electric Co. engages in the generation, transmission, and distribution of electricity in West Texas and southern New Mexico. Its energy sources consist of nuclear fuel, natural gas, coal, wind turbines, and purchased power. The company's electrical generating facilities include Palo Verde Station, Newman Power Station, Rio Grande Power Station, Four Corners Station, Copper Power Station, and Wind Ranch. It serves residential, commercial, industrial, public authority and wholesale customers in El Paso, Texas and Las Cruces, New Mexico. The company was founded on August 30, 1901 and is headquartered in El Paso, TX.

NorthWestern Corporation, doing business as NorthWestern Energy, provides electricity and natural gas to residential, commercial, and industrial customers. The company operates through Electric Operations and Natural Gas Operations segments. It generates, transmits, and distributes electricity; and produces, stores, transmits, and distributes natural gas, as well as owns municipal franchises to provide natural gas service in the communities. The company's electric transmission and distribution network consists of approximately 24,765 miles of overhead and underground transmission and distribution lines, as well as 386 transmission and distribution substations in Montana; and transmission and distribution network comprises of approximately 3,572 miles of overhead and underground transmission and distribution lines, as well as 128 substations in South Dakota. Its natural gas transmission system consists of approximately 2,100 miles of pipeline. The company serves approximately 726,400 customers in Montana, South Dakota, and Nebraska, the United States. NorthWestern Corporation was founded in 1923 and is based in Sioux Falls, South Dakota.

Pattern Energy Group Inc. operates as an integrated renewable energy company. The company operates in two segments, Operating Business and Development Business. The Operating Business segment holds interest in 24 renewable energy projects with an operating capacity that totals approximately 4 gigawatts located in the United States, Canada, and Japan. The Development Business segment develops and sells renewable energy projects focusing on wind, solar, storage, and transmission primarily in the United States, Canada, Japan,and Mexico. Pattern Energy Group Inc. sells electricity and renewable energy credits primarily to local utilities and local liquid independent system organizations markets. The company was founded in 2012 and is headquartered in San Francisco, California.

Shenandoah Telecommunications Company, through its subsidiaries, primarily provides wireless, cable, and wireline telecommunications services to customers and other telecommunications providers. The company operates in three segments: Wireless, Cable, and Wireline. The Wireless segment provides digital wireless mobile services; and wireless mobility communications network products and services. It owns 208 cell site towers built on leased land and owned land; and leases space on towers to affiliated and non-affiliated third party wireless service providers. This segment provides its services in central and western Virginia, south-central Pennsylvania, West Virginia, Maryland, North Carolina, Kentucky, Tennessee, and Ohio. The Cable segment offers video, broadband, and voice services in Virginia, West Virginia, and western Maryland; and leases fiber optic facilities. The Wireline segment provides regulated and unregulated voice services, Internet broadband, and long distance access services, as well as leases fiber optic facilities throughout portions of Virginia, West Virginia, Maryland, and Pennsylvania. Shenandoah Telecommunications Company also maintains an interstate fiber optic network; and offers unregulated communications equipment sales and services. The company provides its products and services under the Sprint and Shentel brands. Shenandoah Telecommunications Company was founded in 1902 and is headquartered in Edinburg, Virginia.

Avista Corporation operates as an electric and natural gas utility company. It operates through two segments, Avista Utilities and AEL&P. The Avista Utilities segment provides electric distribution and transmission, and natural gas distribution services in parts of eastern Washington and northern Idaho; and natural gas distribution services in parts of northeastern and southwestern Oregon, as well as generates electricity in Washington, Idaho, Oregon, and Montana. This segment also engages in the wholesale purchase and sale of electricity and natural gas. The AEL&P segment offers electric services to approximately 17,000 customers in the city and borough of Juneau, Alaska. The company generates electricity through hydro, thermal, and wind facilities. As of February 8, 2019, it provided electric service to 388,000 customers and natural gas to 355,000 customers. In addition, the company engages in sheet metal fabrication, venture fund investments, real estate investments, and other investments. Avista Corporation was founded in 1889 and is headquartered in Spokane, Washington.

California Water Service Group, through its subsidiaries, provides water utility and other related services in California, Washington, New Mexico, and Hawaii. It is involved in the production, purchase, storage, treatment, testing, distribution, and sale of water for domestic, industrial, public, and irrigation uses, as well as for fire protection. The company offers its services to approximately 486,900 customer connections in 100 California communities; approximately 4,800 water and wastewater customer connections on the islands of Maui and Hawaii; approximately 17,600 customer connections in the Tacoma and Olympia areas in Washington; and approximately 8,200 water and wastewater customer connections in the Belen, Los Lunas, Indian Hills, and Elephant Butte areas in New Mexico. It also engages in the provision of non-regulated water-related services, including operating municipally owned water systems, privately owned water, and recycled water distribution systems; providing water system operation, meter reading, and billing services to private companies and municipalities; leasing communication antenna sites on its properties to telecommunication companies; billing optional third-party insurance programs to its residential customers; and providing lab services. California Water Service Group was founded in 1926 and is headquartered in San Jose, California.

Telephone and Data Systems, Inc., a telecommunications company, provides communications services in the United States. It operates through three segments: U.S. Cellular, Wireline, and Cable. The company offers cellular services to postpaid and prepaid customers, including retail consumers, government entities, and business customers located in its service territories; national plans with voice, messaging, and data usage options; and advanced wireless solutions, such as machine-to-machine solution and software applications for various categories of monitor and control, business automation/operations, communication, and asset management. It also provides wireless devices comprising handsets, tablets, mobile hotspots, home phones, and routers; and accessories that include wireless essentials, which comprise cases, screen protectors, chargers, and memory cards, as well as various consumer electronics, such as headphones, smart speakers, wearables, and home automation products. In addition, the company offers wireline services to residential customers comprising broadband and digital television video services, as well as voice services, such as local and long-distance telephone, voice over Internet protocol (VoIP), find me follow me, collaboration, instant messaging, and other services; broadband, IP-based, and hosted voice and collaboration services to small- and medium-sized businesses; and wireline services to traditional interexchange and wireless carriers. Further, it provides business services, including data networking, Ethernet, broadband access, and VoIP services to small- and medium-sized businesses, as well as operates 262 retail stores and kiosks. The company offers its services to approximately 6 million connections. It sells its products through retail sales, direct sales, third-party retailers, and independent agents, as well as through website and telesales. The company was incorporated in 1968 and is headquartered in Chicago, Illinois.

South Jersey Industries, Inc., through its subsidiaries, provides energy-related products and services. The company engages in the purchase, transmission, and sale of natural gas. It also sells natural gas and pipeline transportation capacity on a wholesale basis to residential, commercial, and industrial customers on the interstate pipeline system, as well as transports natural gas, which is purchased directly from producers or suppliers to their customers. As of December 31, 2018, the company had approximately 146.2 miles of mains in the transmission system and 6,567 miles of mains in the distribution system; and served 391,092 residential, commercial, and industrial customers in southern New Jersey. In addition, it markets natural gas storage, commodity, and transportation assets on a wholesale basis for energy marketers, electric and gas utilities, power plants, and natural gas producers in the mid-Atlantic, Appalachian, and southern regions of the United States. Further, the company develops, owns, and operates energy projects comprising natural gas fueled combined heating, cooling and power, and landfill gas-to-energy production facilities, as well as solar-generation sites. Additionally, it owns oil, gas, and mineral rights in the Marcellus Shale region of Pennsylvania; acquires and markets natural gas and electricity to retail end users, as well as provides total energy management services; and services residential and small commercial HVAC systems, and installs small commercial HVAC systems, as well as provides plumbing services and services appliances. South Jersey Industries, Inc. was founded in 1910 and is headquartered in Folsom, New Jersey.

MGE Energy, Inc., through its subsidiaries, operates as a public utility holding company primarily in Wisconsin. It operates through five segments: Regulated Electric Utility Operations; Regulated Gas Utility Operations; Nonregulated Energy Operations; Transmission Investments; and All Other. The company generates, purchases, and distributes electricity; owns or leases electric generation facilities located in Wisconsin and Iowa; and plans, constructs, operates, maintains, and expands transmission facilities to provide transmission services. It also generates electricity from coal, natural gas, and renewable energy sources, as well as purchases power under short and long-term commitments. As of February 22, 2019, the company distributed electricity to 153,000 customers in Dane County, Wisconsin, including the City of Madison; and purchased and distributed natural gas to 161,000 customers in seven south-central and western Wisconsin counties. MGE Energy, Inc. was founded in 1855 and is based in Madison, Wisconsin.

Equitrans Midstream Corp. is a wholly-owned subsidiary of EQT. It doesn't have business operations. The company was founded on February 21, 2018 and is headquartered in Canonsburg, PA.

SJW Group, through its subsidiaries, provides water utility services in the United States. It engages in the production, purchase, storage, purification, distribution, wholesale, and retail sale of water. The company also provides non-tariffed services, including water system operations, maintenance agreements, and antenna site leases. Its water supply consists of groundwater from wells, surface water from watershed run-off and diversion, reclaimed water, and imported water purchased from the Santa Clara Valley Water District. The company offers water service to approximately 231,000 connections that serve approximately 1 million people residing in portions of the cities of San Jose and Cupertino, as well as in the cities of Campbell, Monte Sereno, Saratoga, and the Town of Los Gatos; and adjacent unincorporated territories in the County of Santa Clara in the State of California. In addition, it provides water service to approximately 16,000 connections, which serve 49,000 people in a service area comprising 246 square miles in the region between San Antonio and Austin, Texas. Further, the company owns undeveloped land in Tennessee; and owns and operates commercial buildings in Tennessee. The company was formerly known as SJW Corp. and changed its name to SJW Group in November 2016. SJW Group was founded in 1866 and is headquartered in San Jose, California.

TransAlta Corporation operates as non-regulated electricity generation and energy marketing company in Canada, the United States, and Western Australia. It operates through eight segments: Canadian Coal, U.S. Coal, Canadian Gas, Australian Gas, Wind and Solar, Hydro, Energy Marketing, and Corporate. The company generates and markets electricity through various generation fuels, such as coal, natural gas, water, solar, and wind. It also engages in wholesale trading of electricity and other energy-related commodities and derivatives. The company operates facilities with approximately 9,331 megawatts of aggregate generating capacity. TransAlta Corporation was founded in 1909 and is headquartered in Calgary, Canada.

Northwest Natural Holding Company, through its subsidiary, Northwest Natural Gas Company, provides regulated natural gas distribution services to residential, commercial, and industrial customers in Oregon and Southwest Washington. It is also involved in the gas storage activities, water businesses, and other investments and activities. The company was founded in 1859 and is headquartered in Portland, Oregon.

Otter Tail Corporation, together with its subsidiaries, engages in electric, manufacturing, and plastics businesses in the United States. The company's Electric segment produces, transmits, distributes, and sells electric energy in Minnesota, North Dakota, and South Dakota; and operates as a participant in the Midcontinent Independent System Operator, Inc. markets. This segment generates electricity through coal, wind and hydro, and natural gas and oil sources. It serves approximately 130,000 residential, commercial, industrial, and other customers. Otter Tail Corporation's Manufacturing segment stamps, fabricates, welds, paints, and laser cuts metal components for use in the recreational vehicle, agricultural, oil and gas, lawn and garden, industrial equipment, health and fitness, and enclosure industries; manufactures and fabricates parts for off-road equipment, mining machinery, oil fields and offshore oil rigs, wind industry components, broadcast antennae, and farm equipment; and provides laser cutting services and stamping to weldments and assemblies for metal fabrication buyers and original equipment manufacturers. It also manufactures and sells thermoformed products for the horticulture industry; and clamshell packing, blister packs, returnable pallets, and handling trays for shipping and storing odd-shaped or difficult-to-handle parts for customers in the medical and life sciences, industrial, recreation, and electronics industries. The company's Plastics segment manufactures polyvinyl chloride pipes for municipal water, rural water, wastewater, storm drainage system, and other uses. This segment markets its products to wholesalers and distributors through independent sales representatives, company salespersons, and customer service representatives. The company was formerly known as Otter Tail Power Company and changed its name to Otter Tail Corporation in 2001. Otter Tail Corporation was founded in 1907 and is headquartered in Fergus Falls, Minnesota.

Chesapeake Utilities Corporation, a diversified energy company, engages in regulated and unregulated energy businesses. The company operates in two segments, Regulated Energy and Unregulated Energy. The Regulated Energy segment engages in the distribution of natural gas in Delaware, Maryland, and Florida; distribution of electricity in Florida; and transmission of natural gas on the Delmarva Peninsula and in Florida. The Unregulated Energy segment distributes propane in Delaware, Maryland, Virginia, Pennsylvania, and Florida; markets natural gas in Florida, Delaware, Maryland, Ohio, and other states; supplies, gathers, and processes unregulated natural gas in central and eastern Ohio; and generates electricity and steam. This segment also provides other unregulated energy services, such as energy-related merchandise sales; heating, ventilation, and air conditioning services; and plumbing and electrical services. It serves residential, commercial, industrial, and wholesale customers. The company was founded in 1859 and is headquartered in Dover, Delaware.

Middlesex Water Company, together with its subsidiaries, owns and operates regulated water utility and wastewater systems. It operates in two segments, Regulated and Non-Regulated. The Regulated segment engages in collecting, treating, and distributing water on a retail and wholesale basis to residential, commercial, industrial, and fire protection customers in parts of New Jersey, Delaware, and Pennsylvania. This segment also includes regulated wastewater systems in New Jersey and Delaware. The Non-Regulated segment provides non-regulated contract services for the operation and maintenance of municipal and private water and wastewater systems in New Jersey and Delaware. Middlesex Water Company was founded in 1897 and is headquartered in Iselin, New Jersey.

Kenon Holdings Ltd., through its subsidiaries, owns, develops, and operates power generation facilities in Israel. It operates through OPC, Qoros, and Other segments. The company's power generation plants operate on natural gas and diesel. It also designs, manufactures, sells, and services passenger vehicles, parts, and accessories through a network of independent authorized retail dealers in China. As of December 31, 2017, the company's Qoros' dealerships included 113 point of sales facilities. In addition, Kenon Holdings Ltd., through its 32% equity interest in ZIM Integrated Shipping Services, Ltd., owned and chartered vessels with a total container capacity of 385,974 TEUs. Further, it develops and owns a proprietary natural gas-to-liquid technology process. The company was incorporated in 2014 and is based in Singapore.

AquaVenture Holdings Limited provides water-as-a-service solutions in North America, the Caribbean, and South America. The company operates in two segments, Seven Seas Water and Quench. It offers desalination, wastewater treatment, and water reuse solutions to governmental, municipal, industrial, property developer, and hospitality customers; and point-of-use (POU) filtered water systems and related services to approximately 50,000 institutional and commercial customers. The company markets its products and services through search engine marketing, email marketing, affiliate marketing, display advertising, and POU dealers and retailers, as well as through telemarketing and trade shows. AquaVenture Holdings Limited was founded in 2006 and is headquartered in Road Town, British Virgin Islands.

Connecticut Water Service, Inc., together with its subsidiaries, operates as a regulated water company. The company operates through three segments: Water Operations, Real Estate Transactions, and Services and Rentals. The Water Operations segment supplies public drinking water and provides wastewater services. The Real Estate Transactions segment is involved in the sale or donation of its real estate holdings. The Services and Rentals segment provides contracted services to water utilities and other clients. It also provides contract operations of water facilities; Linebacker, a service line protection plan for public drinking water customers; and bulk deliveries of emergency drinking water to businesses and residences through tanker trucks. This segment also leases and rents residential and commercial properties to third parties. As of December 31, 2017, the company supplied water to 139,574 customers in 80 municipalities in Connecticut and Maine. Connecticut Water Service, Inc. was founded in 1956 and is headquartered in Clinton, Connecticut.

Cincinnati Bell Inc., together with its subsidiaries, provides diversified telecommunications and technology services to residential and business customers in the United States. It operates in two segments, Entertainment and Communications, and IT Services and Hardware. The Entertainment and Communications segment offers data services, including high-speed Internet access, data transport, and interconnection services, as well as metro-Ethernet products; and voice local services, as well as long distance, digital trunking, switched access, and other value-added services, such as caller identification, voicemail, call waiting, and call return. This segment also provides video services comprising entertainment channels, including digital music, local, movie, and sports programming with high-definition (HD) channels, parental controls, HD DVR, and video on-demand. In addition, this segment undertakes wiring projects for business customers; and offers advertising, directory assistance, maintenance, and information services. The IT Services and Hardware segment provides consulting services consisting of IT staffing and project-based engagements, including engineering and installation of voice, connectivity and IT technologies, development of digital application solutions, and staff augmentation; and hosted solutions comprising converged IP communications platforms of data, voice, video, and mobility applications. This segment also offers cloud services, such as virtual data center, storage, and backup services; and monitoring and managing technology environments and applications, as well as sells, architects, and installs telecommunications and IT infrastructure equipment. The company was founded in 1873 and is headquartered in Cincinnati, Ohio.

Pampa Energía S.A., an integrated electricity company, through its subsidiaries, engages in the generation, transmission, and distribution of electricity in Argentina. The company generates electricity through combined cycle gas-fired generating units, thermal generation plants, open-cycle gas turbines, and hydroelectric power generation systems, as well as through a wind farm. As of December 31, 2017, it had an electricity generation installed capacity of approximately 3,756 megawatts; 3 million electricity distribution customers in the northern region of the City of Buenos Aires and northwest of the greater Buenos Aires area; and 20,718 kilometers of high voltage transmission lines. The company is also involved in the exploration and production, and refining and distribution of oil and gas in Argentina, Venezuela, and Ecuador. In addition, it offers petrochemicals, such as intermediate gasoline products, aromatic solvents, hexane and other hydrogenated paraffinic solvents, and propellants for the cosmetic industry; and monomer styrene, and rubber and polymer products from natural gas, virgin naphtha, propane, and other supplies. As of December 31, 2017, the company had combined crude oil and natural gas proved reserves of approximately 167.1 million barrels of oil equivalent; one fully owned refinery with an installed capacity of approximately 30.2 thousand barrels per day; two storage plants with a capacity of approximately 1.2 million barrels; one lubricant plant; and three fully-owned petrochemical plants. It also operated a network of 250 gas stations. The company was formerly known as Pampa Holding S.A. and changed its name to Pampa Energía S.A. in September 2008. Pampa Energía S.A. was founded in 1945 and is headquartered in Buenos Aires, Argentina.

Unitil Corporation, a public utility holding company, engages in the distribution of electricity and natural gas in the United States. It operates through three segments: Utility Gas Operations, Utility Electric Operations, and Non-Regulated. The company distributes electricity in the southeastern seacoast and state capital regions of New Hampshire, and the greater Fitchburg area of north central Massachusetts; and distributes natural gas in southeastern New Hampshire, portions of southern Maine to the Lewiston-Auburn area, and in the greater Fitchburg area of north central Massachusetts. It also operates 86 miles of interstate underground natural gas transmission pipeline that provides interstate natural gas pipeline access and transportation services primarily in Maine and New Hampshire. In addition, the company provides energy brokering and advisory services to commercial and industrial customers; and real estate management services. It serves approximately 105,600 electric customers and 82,700 natural gas customers. Unitil Corporation was founded in 1984 and is headquartered in Hampton, New Hampshire.