Todd A. Overbergen

D. E. Shaw & Co. LP (DESCO) is an independent, SEC-registered investment advisor and hedge fund manager headquartered in New York City. The firm was founded in 1992 by David Elliot Shaw. DESCO serves as the managing member, manager and/or investment advisor of certain entities in the D. E. Shaw Group and provides investment advice to several affiliated hedge funds and other entities. The investor base of the funds includes institutional investors and other highly sophisticated, high-net worth participants.

D. E. Shaw Laminar Portfolios LLC (DE Shaw Laminar) is a private equity subsidiary of D. E. Shaw & Co. LP founded in 1988. The firm is headquartered in New York.

Trident Resources Corp. provides natural gas exploration services. It focuses on the exploration for and exploitation of unconventional natural gas resources, primarily in the Western Canadian Sedimentary Basin ('WCSB'). The company was founded in 2000 and is headquartered in Calgary, Canada.

Chroma Oil & Gas, LP operated as a private oil and gas company. It offered acquisition, exploitation and development of properties primarily in East and South Texas and South Louisiana. The company was headquartered in Houston, TX.

Delaware Basin Resources LLC provides oil and gas exploration services. The company was founded in December 2009 and is headquartered in Midland, TX.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.

The Independent Petroleum Association of America manufactures oil and natural gas. The non-profit company is based in Washington. Barry Russell has been the CEO of the American company since 1980.