Helmerich & Payne International Drilling was established in 1958, when Helmerich & Payne began drilling for oil and natural gas in Venezuela. Helmerich & Payne International Drilling raises the platform for Latin American crude. The contract oil and gas driller (a subsidiary of Helmerich & Payne) operates 11 drilling rigs in Venezuela. Ecuador is a second core area, with eight rigs in operation there. Helmerich & Payne International Drilling also drills in Argentina (three rigs), Colombia (two rigs), Tunisia (one rig), Bolivia (one rig), and Chile (one rig). In 2007 Helmerich & Payne International Drilling continued operations under a management contract for a customer's rig located offshore Equatorial Guinea, and completed a drilling consulting services contract in Russia.

Black Raven Energy (formerly PRB Energy) is engaged in coal-bed methane production in the Rocky Mountains. Black Raven Energy, Inc. focuses on natural gas gathering and exploration and production. Black Raven Energy, Inc. exploration and gathering and processing operations are primarily located in the Powder River Basin. In 2007 PRB Energy was targeting reserves of about 100 billion cu. ft. of natural gas equivalent, before deteriorating finances hurt its expansion plans. Black Raven Energy, Inc. filed for Chapter 11 bankruptcy protection in 2008. In preparation to emerge from bankruptcy Black Raven Energy, Inc. reorganized as Black Raven Energy in 2009.

Patterson-UTI Energy, Inc. provides onshore contract drilling services to independent oil and natural gas operators in North America. It offers pressure pumping services, including well stimulation and cementing for completion of new wells, and remedial work on existing wells to oil and natural gas operators primarily in the Appalachian Basin. Patterson-UTI Energy, Inc. provides contract drilling services principally in Texas, New Mexico, Oklahoma, Arkansas, Louisiana, Mississippi, Colorado, Utah, Wyoming, Montana, North Dakota, Pennsylvania, and West Virginia, as well as western Canada. Patterson-UTI Energy, Inc. also owns and invests in oil and natural gas assets located primarily in Texas and New Mexico. As of February 11, 2010, the company had approximately 350 marketable land-based drilling rigs. Patterson-UTI Energy, Inc. was founded in 1978 and is headquartered in Houston, Texas.

The story behind Valero is one unequaled in corporate America. Named for the mission San Antonio de Valero – the original name of the Alamo – Valero Energy Corporation was created on January 1, 1980, as the corporate successor to LoVaca Gathering Company, a subsidiary of the Coastal States Gas Corporation. Valero is the direct result of a $1.6 billion settlement approved unanimously in 1978 by the Texas Railroad Commission, the state’s natural gas regulatory agency, which ended more than six years of litigation brought against Coastal by its municipal gas customers who claimed they had been overcharged for natural gas. Valero’s journey as a natural gas transportation company evolved in the mid-1980s when the company purchased a 50 percent interest in a Corpus Christi, Texas, refinery owned by Saber Energy. The operation began as nothing more than a vacuum unit and crude unit on a humble plot of land near the Corpus Christi Ship Channel. But in the years to follow, Valero amassed its “Refinery of the Future” and added 16 more refineries to the fold starting in 1997. Through these acquisitions, the company also branched into retail and wholesale markets and continues to operate under the Valero, Diamond Shamrock, Shamrock, Ultramar and Beacon brands.

McMoRan Exploration Co. was founded in 1994 and is headquartered in New Orleans, Louisiana. McMoRan Exploration Co., through its subsidiary, McMoRan Oil & Gas LLC, engages in the exploration, development, and production of oil and natural gas offshore in the Gulf of Mexico and onshore in the Gulf Coast area. McMoRan Exploration Co. also engages in the incorporation of 3-D seismic interpretation, offshore drilling to total depths, and horizontal drilling. As of December 31, 2008, McMoRan Exploration Co. owned or controlled interests in 380 oil and gas leases in the Gulf of Mexico and onshore Louisiana, and Texas covering 1.22 million gross acres. McMoRan Exploration Co. had proved oil and natural gas reserves of approximately 344.8 billion cubic feet equivalent, of which 70 percent represented natural gas reserves.

Cloud Peak Energy operates three wholly owned coal mines located in the Powder River Basin of Montana and Wyoming. Cloud Peak Energy Inc. coal is sold mainly to utilities and accounts for 6% of the electricity generated in the US. Cloud Peak Energy Inc., formerly a subsidiary of Rio Tinto, produces about 100 million tons of coal annually and controls 1 billion tons in proved and probable reserves. Cloud Peak Energy Inc. was formed in 1993 as Kennecott Coal, changed its name to Rio Tinto Energy America (RTEA) in 2006, and went public as Cloud Peak Energy two years after that. Rio Tinto retained just less than 50% ownership of Cloud Peak, post-spinoff.

Paramount Petroleum Corporation is a major manufacturer and producer of paving and roofing asphalt products for the paving and roofing industry. The heart of our company is our 54,000 BPD refinery located in Paramount, California and our 35,000 BPD in Long Beach, CA. Our refineries are capable of processing approximately 89,000 barrels per day. We process crude oil into a variety of products including specialized road and roofing asphalts, diesel fuel, jet fuel, heating oil, and gasoline components. The process involves heating the crude oil under controlled conditions until it separates into fractions that meet certain specifications. Many of these fractions are sent on to other refineries for further processing. Except for asphalt products, almost all of our products are shipped through pipelines to terminals and other refineries in Southern California. In addition to asphalt products, the refinery produces transportation fuels such as jet fuel, diesel fuel and gasoline.

Metalore Resources explores for and develops and produces natural gas, oil, and precious metal resources in southeastern Canada. Metalore's oil and gas exploration and production properties are located in southern Ontario. The company's mineral properties are found in northwestern Ontario. These precious metal properties include gold and silver assets at Walter and Leduc townships. Metalore controls about 40,000 acres of petroleum, natural gas, and mineral leases in Charlotteville, Walsingham, and Houghton townships in Norfolk County, Ontario. CEO George Chilian controls the company, which in 2006 shifted its strategy to focus on gold mining to take advantage of high gold prices.

Crosstex Energy, L.P was founded in 1992 and is based in Dallas, Texas.Crosstex Energy, L.P gathers, transports, treats, and processes natural gas through more than 3,300 miles of natural pipeline, 10 processing plants, three fractionators, and 225 gas treating plants. Its revenues are generated through the purchase and resale of natural gas from more than 40 independent producers located along the US Gulf Coast from Texas to Florida. Through its treating division, Crosstex cleans carbon dioxide and hydrogen sulfide from natural gas, enabling it to meet pipeline quality requirements. Crosstex Energy Inc. owns and controls the general partner of Crosstex Energy.

Transportadora Brasileira Gasoduto is duty-bound to bring gas to Brazil. The company is responsible for the Brazilian operation of Latin America's largest gas pipeline, which originates in Bolivia. It monitors and maintains more than 1,850 miles of pipeline through three regional management offices located in the states of Mato Grosso do Sul, So Paulo, and Santa Catarina (with jurisdiction over Paran and Rio Grande do Sul as well). TBG's pipes carry about 30 million cubic meters of natural gas per day. Its main customers are industrial and power plants. TBG was formed in 1997 and began operations in 1999. Government-controlled PETROBRAS, via subsidiary Gaspetro, owns 51% of the company.

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