In addition to its exploration activities, the Corporation was given powers and operational interests in refining, petrochemicals and products transportation as well as marketing. Between 1978 and 1989, NNPC constructed refineries in Warri, Kaduna and Port Harcourt and took over the 35,000-barrel Shell Refinery established in Port Harcourt in 1965. Whether it's downstream or upstream, the Nigerian National Petroleum Corporation (NNPC) goes with the flow of oil and gas. NNPC oversees the petroleum industry of one of the top, albeit politically turbulent, oil-producing countries in the world. the NNPC produces oil through dominant positions in partnerships with major world oil companies. The company has four refineries, in Port Harcourt (2), Warri, and Haduna) with a total capacity of 445,000 barrels per day. NNPC also oversees the nation's natural gas industry and has liquefied natural gas operations. It oversees 5,000 kilometers of oil and gas pipeline, 21 storage tanks and nine LPG depots.

Invenergy LLC operates about a dozen wind energy generating facilities in the US, Europe, and Canada. Invenergy LLC builds, develops, and buys energy producing properties and has about 2,000 megawatts of wind energy capacity online. While wind is the focus, Invenergy also uses natural gas to produce 2,200 megawatts of energy from facilities in the US and Canada and has plans to enter the solar energy market as well. Invenergy LLC has offices in the US, Poland, and the UK. CEO and president Michael Polsky founded Invenergy in 2001.

Blast Energy Services, Inc. operates as a technology company in the energy sector. Blast Energy Services, Inc. primarily provides applied fluid jetting services to stimulate production and increase reservoir recoveries on behalf of oil and gas operators primarily in North America. Blast Energy Services, Inc. also offers satellite communication services to energy companies and allows them to remotely monitor and control well head, pipeline, drilling, and other oil and gas operations through broadband data and voice services transmitted from remote operations where terrestrial or cellular communication networks do not exist. Blast Energy Services, Inc. was formerly known as Verdisys, Inc. and changed its name to Blast Energy Services, Inc. in June 2005 to reflect its focus on the energy services business. Blast Energy Services, Inc. was founded in 2000 and is based in Houston, Texas.

Carroll Independent Fuel is a family-owned, full-service fuel company that has been in business since 1907, and Carroll Independent Fuel Co. have a proud heritage of exceeding our customers' expectations. Carroll Independent Fuel Co. distributes heating oil, propane, kerosene, gasoline, diesel, and lubricants to residential and commercial customers in Maryland, Pennsylvania, and Virginia. Carroll Independent Fuel has long-standing fuel supplier arrangements with industry majors CITGO Petroleum, BP, and Exxon Mobil. Carroll Independent Fuel Co., which serves a network of 230 fuel dealers, also sells and services HVAC equipment, electric heat pumps, swimming pool heaters, and water heaters.

KCA DEUTAG is a wholly-owned subsidiary of Abbot Group. In March 2008, Abbot Group plc was acquired by First Reserve Corporation, a US-based private equity firm. KCA DEUTAG Drilling Limited is a major land driller with more than 60 land rigs operating worldwide and is the largest offshore drilling contractor in the UK sector of the North Sea. KCA DEUTAG has more than 30 offshore platforms and 10 mobile offshore drilling rigs (including jackups) in the North Sea, the Caspian Sea, Angola, and Sakhalin. KCA DEUTAG Drilling Limited is also active in the Middle East, Africa, and Asia. Not just a contractor, KCA DEUTAG Drilling Limited also designs, engineers, and constructs platform rigs. KCA DEUTAG delivers rigs primarily to large international operators in the oil and gas industry. KCA DEUTAG Drilling Limited is a subsidiary of Abbot Group, a major UK-based oil field services concern.

Constellation Energy Partners LLC was founded in 2005 and is headquartered in Houston, Texas. Constellation Energy Partners LLC engages in the acquisition, development, and production of oil and natural gas properties, as well as related midstream assets in the United States. Constellation Energy Partners LLC has interests in the Black Warrior Basin in Alabama, the Cherokee Basin in Kansas and Oklahoma, and in the Woodford Shale in the Arkoma Basin in Oklahoma. As of December 31, 2008, Constellation Energy Partners LLC had approximately 232.4 Bcfe of estimated proved reserves; and owned approximately 2,763 net producing wells. Constellation Energy Partners LLC was formerly known as Constellation Energy Resources LLC and changed its name to Constellation Energy Partners LLC in July 2006.

A calm presence in the volatile oil and gas industry, Placid Refining owns and operates the Port Allen refinery in Louisiana, which converts crude oil into a number of petroleum products, including diesel, ethanol, gasoline, liquid petroleum gas, jet fuel, and fuel oils. Placid Refining's refinery has the capacity to process 55,000 barrels of crude oil per day. The company is one of the largest employers and taxpayers in West Baton Rouge Parish. Placid Refining, which is controlled by Petro-Hunt, distribute fuels across a dozen states in the southeastern US, from Texas to Virginia, and is a major supplier of jet fuel to the US military.

Bill Barrett Corporation was founded in 2002 and is headquartered in Denver, Colorado. Bill Barrett Corporation, an independent oil and gas company, engages in the exploration, development, and production of natural gas and crude oil in the Wind River, Uinta, Piceance, Powder River, Big Horn, and Paradox Basins and the Montana Overthrusts. Barrett holds about 1.2 million net undeveloped leasehold acres. Some 90% of the company's properties are unconventional resources, such as coal bed methane and shale gas. In 2008 the oil and gas firm had working interests in 950 drilling locations and had estimated net proved reserves of 818.3 billion cu. ft. of natural gas equivalent. Bill Barrett Corporation also directly operates 97% of its net production.

Williams Pipeline Partners L.P. Company Profile Williams Pipeline Partners is piping up across the Rockies to the northwestern US. Williams Pipeline Partners L.P. owns a 35% general partnership interest in Northwest Pipeline, which operates a natural gas pipeline extending from the San Juan Basin in New Mexico and Colorado to the Canadian border near Sumas, Washington. With about 3,900 miles of pipeline, Northwest can move some 3 billion cu. ft. of natural gas each day and has a storage capacity of 12.6 billion cu. ft. In 2010 parent The Williams Companies announced plans to merge Williams Pipeline Partners into Williams Partners. The Williams Companies owns a 2% general partner interest and about a 46% limited partner interest in Williams Pipeline Partners.

Paramount Resources' paramount business is discovery and development of natural gas assets, which accounts for 75% of its production. Paramount Resources Ltd. explores for, develops, processes, markets, and transports natural gas and petroleum. Paramount Resources Ltd. has interests in more than 2.3 million gross acres, primarily in Alberta and elsewhere in Western Canada (the Northwest Territories and British Columbia) and the US (Montana an North Dakota). In 2008 Paramount Resources reported proved plus probable reserves of about 36.4 million barrels of oil equivalent. Company management, led by chairman and CEO Clayton Riddell, controls Paramount Resources.

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