James R. Casperson

American City Business Journals, Inc. publishes metropolitan business newsweeklies. It also owns publications that cater to motor sports readers, sports fans, sports business readers, and car enthusiasts. The company was founded in 1982 and is headquartered in Charlotte, NC.

Lehman Brothers Holdings, Inc. engages in the provision of securities underwriting and investment services. The company is headquartered in New York, NY.

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.

HighPoint Operating Corp. engages in the development, acquisition, and exploration of oil and natural gas resources. It holds interest in the Denver-Julesburg Basin and the Uinta Oil Program in the Uinta Basin. The company was founded by William J. Barrett, Fredrick J. Barrett, and John Frank Keller in January 2002 and is headquartered in Denver, CO.

Hart Energy Publishing LLC operates as a holding company. It provides publishing, conferences, digital media, custom reports, research and consulting, and data services. The company was founded in December 1973 and is headquartered in Houston, TX.

Whiting Oil & Gas Corp. explores, and produces crude oil, natural gas and natural gas liquids. The company is headquartered in Denver, CO.

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.

Whiting Resources Corp. engages in the exploration of crude petroleum and natural gas. The company is headquartered in Denver, CO.

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.

Bonanza Creek Energy Operating Co. LLC acquires, explores and develops onshore oil fields. The company was founded in May 2006 and is headquartered in Denver, CO.

Southwest Research Institute is a research and development organization. It offers technical services in engine design and development, emissions certification testing, fuels and lubricants. The firm provide services to automotive and transportation, biomedical and health, chemistry and materials, defence and security, electronics and automation, energy and environment, manufacturing and construction industries. The company was founded in 1947 and is headquartered in San Antonio, TX.

Weatherford International, Inc., provides equipment and services used in the drilling, evaluation, completion, production, and intervention of oil and natural gas wells worldwide. Its products and services include artificial lift systems, such as progressing cavity pumps, reciprocating rod lift systems, gas lift systems, hydraulic lift systems, plunger lift systems, hybrid lift systems, wellhead systems, production optimization products, well optimization controllers, flow measurement metering and software solutions, field optimization tools, and heavy oil production optimization equipment. The company is base in Houston, TX

Esquire, Inc. provides attorney recruitment and placement services. It focuses on the representation of partners, practice groups and law firms in acquisitions and mergers. Its clients include Arnold & Porter, McKenna Long Aldridge, Baker & Hostetler, Milbank, Tweed, Hadley & McCloy, Baker & McKenzie, Goodwin Procter, Proskauer Rose and Greenberg Traurig. The company was founded in 1987 by Sandford A. Lechtick and is headquartered in Los Angeles, CA.

University of Colorado Foundation, Inc. provides financial support to charitable causes. It raises private funds from outside for support the University's strategic initiatives. The firm manages investments such as endowment funds and charitable trusts. The company was founded in 1967 and is headquartered in Boulder, CO

Hart Energy Publishing LLLP provides data and information products. Its products and services include website, publications, newsletters, and data services. The company was founded in 1973 and is headquartered in Houston, TX.

Davis Petroleum Acquisition Corp. explores and develops oil and gas properties. The company was founded on January 10, 2008 and is headquartered in Dallas, TX.

Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada.

National Association of Petroleum Investment Analysts is a Non-Profit organization, which engages in education of its members in their knowledge of the petroleum industry. The company was founded in 1974 and is headquartered in Concord, MA.

Davis Petroleum Corp. provides private oil and gas exploration, development and production services. The firm specializes in drilling, completions, production operations, pipelines, and marketing staff. The company was founded in 1986 and is headquartered in Houston, TX.

KPA Services LLC engages in the provision of compliance and risk management consulting services. It offers risk management and human resources software, internal and external compliance audits, multi-site visibility, and interactive training solutions. It serves the automotive, dealers, distribution, food and beverage, insurance brokers, manufacturing, and transportation industries. The company was founded by Kip Prahl in 1986 and is headquartered in Lafayette, CO.

Energy Management Corp. has been providing electric motor, variable frequency drives (VFDs), and standby generator systems sales, distribution, service, repair, and manufacturing & drive integration since 1979. The private company is based in Salt Lake City, UT and has subsidiaries in the United States. EMC is proud to sell, service, and maintain Generac industrial power generators in southern Wyoming. The company helps facilities improve their electrical and mechanical systems by enhancing safety, reliability, and energy efficiency. EMC also offers engineering services such as arc flash, power quality, IR, and other services. The company stocks and sells most motor brands and provides VFDs installation, commissioning, troubleshooting, repair, and maintenance services. The company was founded in 1979 by James J. Volker.

Darby Overseas Investments Ltd is a private equity firm founded in 1994 by Nicholas F Brady. The firm is headquartered in Washington, DC.

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.