These electric cooperatives serve more than 750,000 residents, businesses, industries and farms in a 15,000 sq. ml. service area. It operates four electric power plants and a 1,450-mile trasmission system, and maintains the Tuttle Creek Reservoir in Southwest Indiana. Hoosier Energy is part of the Touchstone Energy network of electric cooperatives.Who's yer daddy? In terms of providing electricity, for many Indianans (and some residents of Illinois) that would be Hoosier Energy Rural Electric Cooperative, which provides wholesale electric power to 18 member distribution cooperatives in 48 central and southern Indiana counties, and 11 counties in southeastern Illinois.

PG&E Corporation is well on the way to fully recharging its batteries after losing power and declaring bankruptcy following California's energy crisis and the ensuing collapse of the wholesale energy trading industry. Its venerable Pacific Gas and Electric utility serves approximately 5.1 million electric customers and 4.3 million natural gas customers in California. The utility (founded in 1905) is also engaged in electricity generation; procurement and transmission; and natural gas procurement, transportation, and storage. In September 2010 a PG&E utility gas transmission line ruptured in San Bruno, causing a major fire, loss of life, and destruction of, or damage to, about 170 homes.

Sociedad General de Aguas de Barcelona, S.A. (Agbar) distributes water to more than 12 million people (almost 19 million during tourist season) and provides wastewater services for more than 6.2 million people. The company also has stakes in water businesses in Chile and the UK. Agbar has sold its solid-waste collection and treatment operations in order to focus on its core water business. Activities in Spain account for about 83% of the company's sales. Agbar is 66%-owned by Holding de Infraestructuras y Servicios Urbanos S.A.

Wisconsin Energy Corporation company's utilities provide electricity to more than 1.1 million customers and natural gas to more than 1 million customers in eastern and northern Wisconsin and Michigan's Upper Peninsula. It also serves 465 steam customers in downtown Milwaukee. Wisconsin Energy has about 5,500 MW of generating capacity, primarily from coal-fired and nuclear-powered plants. The company's primary utility subsidiaries, Wisconsin Gas and Wisconsin Electric, operate together as We Energies. Other operations include real estate development and renewable energy technology.

Catalytic Combustion Corporation clears the air -- literally and alliteratively. The company makes systems, processes, and products to help customers eliminate volatile organic compounds (VOCs) and other pollutants in order to meet air-quality standards. Catalytic Combustion's catalysts -- substances that accelerate the rate of chemical reactions -- are used in a host of industries and products, ranging from appliances to graphic arts to nuclear power plants. The company makes catalysts from materials such as ceramics, metal foil, and wire mesh. Catalytic Combustion was founded in 1950.

Southern Union Company, together with its subsidiaries, engages in the gathering, processing, transportation, storage, and distribution of natural gas in the United States. It operates in three segments: Transportation and Storage, Gathering and Processing, and Distribution. The Transportation and Storage segment engages in the interstate transportation and storage of natural gas in the Midwest and from the Gulf Coast to Florida. It also provides liquefied natural gas (LNG) terminalling and regasification services. The Gathering and Processing segment involves in gathering, treating, processing, and redelivering natural gas and natural gas liquids (NGLs) in Texas and New Mexico. It operates a network of approximately 5,500 miles of natural gas and NGL pipelines, 4 cryogenic processing plants with a combined capacity of 410 MMcf/d, and 5 natural gas treating plants with a combined capacity of 585 MMcf/d. The Distribution segment engages in the local distribution of natural gas in Missouri and Massachusetts. This segment serves approximately 550,000 residential, commercial, and industrial customers through local distribution systems consisting of 9,140 miles of mains, 6,185 miles of service lines, and 45 miles of transmission lines. Southern Union company was founded in 1932 and is based in Houston, Texas.

Summit Energy Services is a major provider of energy management and procurement services for industrial and commercial companies, and operates in 56 countries. A consolidator in a fragmented industry, the company's offerings include market intelligence reporting, need and competitive supply analysis, contract negotiation, utility bill auditing, risk advisory planning, and energy efficiency projects. It serves the automotive, healthcare, transportation, and food industries, as well as chemical, metal, paper, and plastic manufacturing companies, and municipal and state governments and hospitality and real estate management enterprises. Summit Energy Services has more than 650 clients.

Enel S.p.A. owns and operates more than 70 renewable energy plants in 20 states and two Canadian provinces. Enel North America's plants have a capacity to generate 748.5 MW of power (406 MW of wind power, 314 MW of hydropower, 21 MW of biomass power and 7.5 MW of geothermal power). Its wind farms use Vestas and GE Energy turbines; its largest project, the Smoky Hill Wind Farm in Kansas, has 155 wind turbines that alone generate 250 MW of power (enough to power 85,000 homes for a year). Enel North America's only biomass plant is located in Quebec, where it offsets 1 million tons of carbon dioxide by burning wood waste each year.

Calvalley Petroleum searches below the plateau for fuel for its customers. The company focuses on exploring for and producing oil and natural gas at Block 9 in the Republic of Yemen. The company, which has about 16 working wells (more than 50 have been drilled), produces some 5,000 barrels of oil each day. Its subsidiary Calvalley Petroleum (Cyprus) Ltd. is the operator of the property, which includes about 552,000 acres of land in the Sayun-Masila basin. Calvalley Petroleum has a net proved plus probable reserves of 7.8 billion barrels of oil equivalent.

Yankee Gas Services does not ride a pony into town like a Yankee Doodle Dandy, but it does pipe a lot of natural gas to 71 central and southwest Connecticut towns and cities. With approximately 205,000 commercial, industrial, and residential customers, the company, a subsidiary of Yankee Energy System (which is itself a unit of Northeast Utilities), is the largest natural gas distributor in Connecticut. Northeast Utilities Service Company, also a subsidiary of Northeast Utilities, performs administrative and accounting duties for Yankee Gas Services.

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