Gregory J. Heinlein

Freescale Semiconductor, Inc. manufactures and designs micro controllers, processors and semiconductors. The company was founded in 1948 and is headquartered in Austin, TX.

Fisher Scientific International, Inc. manufactured and distributed scientific equipment and instruments that included everything from Erlenmeyer flasks to video/microscope systems. The company also produced chemicals, clinical equipment, diagnostic kits, reagents and laboratory workstations. Fisher Scientific International was founded in 1902 and was headquartered in Hampton, NH.

Great Lakes Chemical Corp. (NYSE: GLK) is a global company dedicated to delivering innovative, market-focused specialty chemical solutions and consumer products. The Company's products and services help treat and purify water, keep surfaces in and around the home shining, protect against and extinguish fire, and enhance the stability and performance of a wide range of consumer products, such as computers, electronics, automobiles, packaging, building materials and furniture. The Company is organized into two global business units that serve diverse markets around the world: Industrial Performance Products and Consumer Products

The Dow Chemical Co. engages in the manufacture and distribution of chemicals, plastics, industrial and agricultural products. It serves agriculture, automotive, building and construction, consumer, electronic materials, infrastructure, packaging, product finder and product safety industries. The company was founded by Herbert Henry Dow in 1897 and is headquartered in Midland, MI.

ION Geophysical Corp. engages in the provision of geoscience technology, services, and solutions to the oil and gas industry. It operates through the E&P Technology and Services, and Operations Optimization segments. The E&P Technology and Services segment creates digital data assets and delivers services that improve decision-making, mitigate risk and maximize portfolio value for E&P companies. The Operations Optimization segment develops mission-critical subscription offerings and engineering services that enable operational control and optimization offshore. The company was founded in 1968 and is headquartered in Houston, TX.

Nuverra Environmental Solutions, Inc. engages in the development and ongoing production of oil and natural gas from shale formations. It operates through the following segments: Rocky Mountain, Northeast, Southern, and Corporate and Other. The Rocky Mountain segment includes the Bakken shale area. The Northeast segment is comprised of the Marcellus and Utica shale areas. The Southern segment covers the Haynesville shale area. The Corporate and Other segment includes certain corporate costs and certain other corporate assets. The company was founded on May 29, 2007 and is headquartered in Houston, TX.

Stallion Oilfield Holdings, Inc. provides drill site products and services for oil and gas operations. The company is headquartered in Houston, TX.