NuStar GP Holdings, LLC (NYSE: NSH) owns general partner and limited partner interests in NuStar Energy L.P. (NYSE: NS), one of the nation's largest asphalt refiners and marketers and operators of petroleum product terminals and petroleum liquids pipelines. The general partner manages the business affairs of NuStar Energy L.P., which is a master limited partnership based in San Antonio, with 8,417 miles of pipeline, 82 terminal facilities and four crude oil storage facilities. It has assets strategically located in major U.S. markets and in the Netherlands Antilles, Canada, Mexico, the Netherlands and the United Kingdom. NuStar Energy L.P.'s asphalt refineries, refined product terminals, petroleum and specialty liquids storage and terminaling operations, and crude oil storage tank facilities are predominantly located on waterways that are easily accessible by barge or vessel. Altogether, these facilities have over 91 million barrels of storage capacity. NuStar Energy L.P.'s crude oil and refined products pipeline systems largely serve growing markets in the Mid-Continent, Southwest and Texas-Mexico border region of the United States.

MFA Oil Company was organized in 1929 by Missouri farmers who wanted to be assured of a reliable supply of quality petroleum products at a fair price. The first bulk plant was located at Wright City, MO and seven more plants were established the same year. The energy cooperative, controlled by its farmer-members, produces fuel and lubrication products and manages bulk petroleum and propane plants in the Central US. Operating more than 100 propane plants, the company sells more propane for farm use and home heating than any other company in Missouri. MFA Oil Company also operates nearly 100 bulk plants and serves customers in Arkansas, Iowa, Kansas, and Oklahoma. Additionally, MFA Oil Company operates 76 convenience stores under the Break Time brand, more than 160 Petro-Card 24 fueling locations, and owns 10 Jiffy Lube and 10 Big O Tire franchises.

TGS-NOPEC Geophysical Company maps strata to strategically search for subsurface stores. TGS-NOPEC Geophysical Company ASA develops, manages, conducts, and sells seismic surveys with operations in North and South America, Europe, Africa, Asia, and Australia. Through gravity, magnetic, 2-D, and 3-D seismic data technologies, it provides comprehensive images to aid in the exploration of oil and gas. Most of the company's revenues are generated by selling licenses to non-exclusive (or multi-client) geoscientific data. TGS-NOPEC Geophysical Company also offers well-log data. TGS-NOPEC's geophysical products library contains about 2.3 million line kilometers of 2-D seismic data and approximately 94,000 sq. kilometers. of 3-D seismic data.

BP Marine has a presence in more than 50 countries and 300 ports globally, supplying customers with high quality fuels, technologically advanced lubricants and a wide range of innovative services. Committed to the environment, BP Marine is developing cleaner fuels, biodegradable lubricants and innovative emissions abatement technology and trading solutions. It is also currently rolling out a programme of upgrading infrastructure at its existing ports, further underlining its long term commitment to the maritime industry.

Hyperdynamics was founded in 1996 and is traded on the NYSE Amex under the symbol HDY. Hyperdynamics has shifted its business focus from IT consulting services to oil and gas exploration, primarily in Africa. Hyperdynamics Corporation SCS Corporation subsidiary concentrates on developing an oil and gas concession located offshore the Republic of Guinea in West Africa. Hyperdynamics' HYD Resources subsidiary and gas exploration and production company focuses on low-risk shallow exploration projects in Louisiana, where in 2008 it held proved reserves of 150,435 barrels of oil. Chairman Kent Watts, who stepped down a CEO in 2009, owns 17% of Hyperdynamics. Hyperdynamics Corporation holds certain contract rights for the exploration and exploitation of oil and gas in an approximately 80,000 square kilometer concession off the coast of the Republic of Guinea.

Sword Energy Inc., formerly Thunder Energy Trust, engages in the exploration, development, and production of oil and natural gas in the Western Canadian Sedimentary Basin. Sword Energy Inc. is a privately-owned company. Sword Energy invests in oil and gas operations in Alberta, British Columbia, and Saskatchewan. Sword Energy Inc. (formerly called Thunder Energy Trust) has estimated proved reserves of about 26 billion barrels of oil equivalent, and produces about 7,800 barrels of oil equivalent a day (65% as natural gas). Sword Energy Inc. produces natural gas in Alberta's Peace River Arch and Deep Bain, as well as in Central, Northern and Western Alberta, and in Southeastern Saskatchewan. Aston Hill Financial, an investment group that specializes in the oil and gas business, owns Sword Energy.

Named after a powerful weasel (the mascot of the University of Michigan), Wolverine Pipe Line transports refined petroleum products across the US Midwest. It operates more than 1,000 miles of pipeline stretching through Illinois, Indiana, Michigan, and Ohio. The company supplies about 35% of Michigan's refined petroleum products. Sunoco Logistics Partners' Eastern Pipeline System controls nearly a third of Wolverine Pipe Line.

TXCO Resources Inc. is a full-cycle, U.S.-based, oil and gas exploration and production company with a diversified exploitation, development and exploration project inventory. Based in San Antonio, TXCO has more than 720,000 net acres under lease (1.3 million gross acres). TXCO Resources Inc. leverages its geological and geophysical expertise to increase shareholder value. TXCO Resources Inc. applies new technology to overlooked opportunities in high-potential areas that offer multiple resource plays and thousands of drilling prospects. Through its direct efforts and joint ventures with other oil and gas firms, the company explores for oil and natural gas in the Dakotas, Montana, and South Texas. In 2008 TXCO Resources Inc. reported estimated proved reserves of 81.7 billion cu. ft. of natural gas equivalent. TXCO Resources sells its oil and gas wholesale through independent marketers. Facing tough economic times, TXCO Resources Inc. filed for Chapter 11 bankruptcy protection in May, 2009.

Iroquois was created in response to dramatic increases in natural gas demand and anticipated future needs. Fresh from the energy crisis of the 1970s, the Northeast Region found itself increasingly dependent on petroleum products. The discovery of vast reserves of natural gas in Western Canada during the 80’s opened up new possibilities allowing for the creation of a new partnership, designed to link the Canadian supplies with the Northeast markets. Since beginning full operations in 1992, we have expanded our system to meet the needs of our customers while minimizing the impact on local communities. Through the addition of seven compressor stations, a 36-mile marine pipeline extension and 1.6-miles of pipeline loop, Iroquois has operationally doubled the amount of natural gas transported on its system.

Superior Well Services, Inc. provides a range of wellsite solutions to oil and natural gas companies in the United States. Superior Well Services, Inc. operates in two segments, Technical Services and Fluid Logistics. The Technical Services segment offers technical pumping services comprising stimulation services to improve the flow of oil and natural gas from producing zones; nitrogen services that use nitrogen to stimulate wellbores; and cementing services that ensure proper pump time, compression strength, and fluid loss control. Superior Well Services, Inc. also provides completion and production services, including plugging and abandonment services, and roustabout services on well sites. In addition, Superior Well Services, Inc. sells expendable equipment that is used during the cementing process and in the completion of wells, such as plugs, tubing anchors, retainers, and other accessories; and rents electric generators, lighting equipment, and a line of reusable tools and equipments that are used in the completion and production phases. Superior Well Services, Inc. was founded in 1997 and is based in Indiana, Pennsylvania.

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