United Water International, founded in 1995, is one of the largest water utility companies operating in towns and cities in both Australia and New Zealand (including major centers such as Adelaide, Ballarat, and Auckland). United Water International operates and maintains water and wastewater treatment plants as well as customer call centers. All told, the company serves somewhere in the neighborhood of 1.5 million customers. United Water International is owned by Halliburton unit KBR, and Veolia Environnement.

One of the country's largest water utilities, AWG provides regulated water, wastewater, and environmental services to some 6 million residential, commercial, and industrial customers through its Anglian Water unit. Anglian Water operates primarily in the east of England. The AWG Property unit is engaged in commercial and residential property development AWG's Morrison Facilities Services unit provides a repair and maintenance service to homes and businesses in the UK. AWG was acquired in 2006 by Osprey Acquisitions Limited.

Central Vermont Public Service Corporation, together with its subsidiaries, operates as an electric utility company. The company engages in the purchase, production, transmission, distribution, and sale of electricity. It sells electricity to residential, commercial, and industrial customers. As of December 31, 2009, the company served approximately 159,000 retail customers in Vermont. Its wholly owned plants included 20 hydroelectric generating facilities with an aggregate nameplate capacity of 45.3 megawatts; and 2 oil-fired gas turbines with a combined nameplate capacity of 26.5 megawatts. The company also owns, buys, sells, and leases real and personal property and interests therein related to the utility business; and sells and rents electric water heaters in Vermont and New Hampshire. In addition, it has joint ownership interests in electric generating and transmission facilities. The company was founded in 1929 and is based in Rutland, Vermont.

Delta Natural Gas Company, Inc. distributes or transports natural gas in central and southeastern Kentucky. It operates through two segments, Regulated and Non-Regulated. The Regulated segment sells and distributes natural gas to its retail customers primarily in 23 rural counties. This segment also transports gas to industrial customers on its system who purchase gas in the open market, as well as transports gas on behalf of local producers and other customers not on its distribution system. The Non-Regulated segment purchases natural gas in the open market, primarily from Kentucky producers, and resells this gas to industrial customers on its distribution system and to others not on its system. This segment also produces natural gas that is sold to Delgasco for resale in the open market. Delta Natural Gas Company, Inc. owns approximately 2,500 miles of natural gas gathering, transmission, distribution, storage, and service lines; and holds leases for the storage of natural gas under 8,000 acres located in Bell County, Kentucky. It serves approximately 37,000 customers. Delta Natural Gas Company, Inc. was founded in 1949 and is headquartered in Winchester, Kentucky.

Questar Gas provides retail natural gas-distribution service to almost 900,000 customers in Utah, southwestern Wyoming and a small portion of southeastern Idaho. Questar Gas is regulated by the Public Service Commission of Utah and the Wyoming Public Service Commission. Historically, about half of the natural gas sold to Questar Gas retail customers comes from Questar-owned supplies that are typically more-stably priced than gas purchased from other suppliers. Questar Gas is also one of the most efficient natural gas utilities in the nation. As a result, rates paid by Questar Gas customers are traditionally among the lowest in the country. A Questar Gas predecessor began serving customers in 1929. In the decades since, there has never been a major natural gas service interruption.

Terranext focuses its earthbound geotechnical engineering expertise on the next project, as well as the one it is currently working on. An affiliate of engineering group BE&K, Terranext provides environmental engineering and consulting services to industrial, commercial, and government customers through half a dozen offices (in Alabama, Arizona, Colorado, Georgia, Kansas, and New Jersey). The company's services include air quality management, cultural, and natural resource conservation, energy reduction engineering, pollution prevention, water management, and site investigation and remediation. Since 1985 the woman-owned business has conducted more than 3,000 environmental projects.

Shell International Renewables (doing business as Shell Renewables) may be able to turn them into fuel to power homes and vehicles. The company oversees many of the parent Royal Dutch Shell's operations in alternative fuels, was formed in 1997 to commercially explore the global possibilities of new low-carbon power systems. Shell Renewables markets and distributes alternative energies from the sun, the wind, hydrogen (technically an energy carrier rather than energy source), and bio-fuels worldwide. It is researching hydrogen created from natural gas and bio-fuels, made of everything from corn to algae, to replace gasoline in cars.

Ormat Technologies is on an environmentally safe power trip, building geothermal as well as recovered energy power plants. Geothermal technology extracts hot water or steam that is vaporized and used to drive turbines. The fluid is then cooled and recycled back through the process, making it a clean and renewable energy source. Recovered energy utilizes heat produced in other industrial processes. The company, set up by Israel-based Ormat Industries, also sells power units for both types of plants, and sells fossil fuel powered turbo-generators with a capacity of between 400 watts and 4,000 watts. Ormat operates power plants (with a total of 518 MW of power) in Guatemala (2), Kenya, Nicaragua, and the US (10).

Guangzhou Development Industry helps keep the lights on in China's Pearl River Delta. Established in 1997, the company is the largest power producer in Guangzhou province, with stake in about 10 coal-fired power plants with 2,100 MW of generating capacity. Guangzhou's energy logistics division operates an 80,000-ton deep-water coal-loading terminal and a 340,000-ton coal storage field. Nansha Oil Terminal, its joint venture with BP, has expanded Guangzhou's oil products distribution services throughout the region. The company is also a shareholder in Guangzhou Northern No. 2 Ring Expressway, a key toll road operating in the Pearl River Delta

Energy Future Holdings (formerly TXU) has seen the future and it works -- powered by electricity. The company is the largest nonregulated retail electric provider in Texas (TXU Energy), with 2.1 million customers, and through its Luminant unit it has a generating capacity of more than 15,510 MW from its interests in nuclear and fossil-fueled power plants in the state. Energy Future Holdings has regulated power transmission and distribution operations through 80%-owned Oncor Electric Delivery. Oncor operates the largest regulated distribution and transmission system in Texas, providing power to more than 3.1 million electric delivery points over more than 117,000 miles of transmission and distribution lines.

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