Henry E. Lentz

A subsidiary of Lehman Brothers Holdings, Inc., Lehman Brothers, Inc. is a broker/dealer headquartered in New York City. They provide global equity and fixed research. The equity research department covers more than 100 sectors. They use a fundamental, quantitative, strategic and tactical research approach. In addition to these Lehman has also developed special products, such as 10 uncommon values and 10 uncommon eurovalues.

Rowan Cos., Inc. engages in the provision of contract drilling services to the oil and gas industry. The company was founded by Charles Rowan and Archibald Rowan in 1923 and is headquartered in Houston, TX.

CARBO Ceramics, Inc. is an oilfield services technology company. The firm manufactures and supplies ceramic proppant and resin-coated sand. It operates through the following segments: Oilfield and Industrial Technologies and Services; and Environmental Technologies and Services. The Oilfield and Industrial Technologies and Services segment manufactures and sells ceramic technology products and services, base ceramic proppant and frac sand for both the oilfield and industrial sectors. The Environmental Technologies and Services segment intends to protect operator?s assets and minimize environmental risks and lower lease operating expense. The company was founded in 1987 and is headquartered in Houston, TX.

Lazard Freres & Co. LLC provides corporate advisory, capital market, and asset management services. The company was founded on April 13, 1992 and is headquartered in New York, NY.

Macquarie Infrastructure Corp. owns and operates a diversified group of businesses providing basic services to customers in the U. S. It operates through the following business segments: International-Matex Tank Terminals (IMTT), Atlantic Aviation, MIC Hawaii, and Corporate and Other. The IMTT segment provides bulk liquid storage and handling services to third parties in the U.S. and Canada. The Atlantic Aviation segment provides fuel, terminal, aircraft hangaring and other services primarily to owners and operators of general aviation (GA) jet aircraft at 70 airports throughout the U.S. The MIC Hawaii segment comprises energy services, production and distribution. The Corporate and Other segment comprises MIC Corporate and a shared services center in Plano, Texas. The company was founded on April 13, 2004 and is headquartered in New York, NY.

WPX Energy, Inc. engages in the exploration and production of oil and natural gas. It focuses on exploiting, developing and growing its oil positions in the Delaware Basin in Texas and New Mexico, and the Williston Basin in North Dakota. The company was founded on April 19, 2011 and is headquartered in Tulsa, OK.

Based in New York City, the Lehman Brothers Merchant Banking Group (LBMB) is a division of Lehman Brothers Holdings, Inc. (NYSE: LEH