David C. Parke

PDC Energy, Inc. engages in the exploration and production of oil and natural gas. The firm acquires, explores, and develops properties for the production of crude oil, natural gas, and natural gas liquids. Its primary operations are located in the Wattenberg Field in Colorado and the Delaware Basin in Texas. The company was founded in 1969 and is headquartered in Denver, CO.

Zunicom, Inc. provides business communication services to the hospitality industry. It operates through its subsidiary, AlphaNet Hospitality Systems, Inc. which consists of the sale as a reseller, of point-of-sale software and relevant hardware to restaurants. The company was founded on January 10, 1992 and is headquartered in Dallas, TX.

Headquartered in New York City, Investec Securities LLC is an international, specialist banking group that provides a diverse range of financial products and services to a select client base. The firm provides a full array of trading and execution services for their clients. They do not provide an internal research. Investec is a subsidiary of Investec Plc

PDC 2003-C LP explores oil and natural gas properties. It has drilled 22 wells in Wattenberg and 5 in Grand Valley fields. The company was founded on September 26, 2003 and is headquartered in Denver, CO.

PDC 2005-A Limited Partnership was organized as a limited partnership, in accordance with the laws of the State of West Virginia for the purpose of engaging in the exploration and development of oil and natural gas properties. Business operations of the Partnership commenced upon closing of an offering for the sale of Partnership units. Upon funding, the Partnership entered into a Drilling and Operating Agreement ('D&O Agreement') with the Managing General Partner which authorizes Petroleum Development Corporation ('PDC') to conduct and manage the Partnership's business. Upon completion of the drilling phase of the Partnership's wells, all additional general partners units were converted into units of limited partner interests and thereafter became limited partners of the Partnership. In accordance with the terms of the Limited Partnership Agreement, the Managing General Partner manages all activities of the Partnership and acts as the intermediary for substantially all Partnership transactions.

PDC 2005-B Limited Partnership was organized as a limited partnership, in accordance with the laws of the State of West Virginia for the purpose of engaging in the exploration and development of oil and natural gas properties. Business operations of the Partnership commenced upon closing of an offering for the sale of Partnership units. Upon funding, the Partnership entered into a Drilling and Operating Agreement with the Managing General Partner which authorizes Petroleum Development Corporation ('PDC') to conduct and manage the Partnership's business. Upon completion of the drilling phase of the Partnership's wells, all additional general partners units were converted into units of limited partner interests and thereafter became limited partners of the Partnership. In accordance with the terms of the Limited Partnership Agreement, the Managing General Partner manages all activities of the Partnership and acts as the intermediary for substantially all Partnership transactions

Boenning & Scattergood, Inc. (dba 1914 Advisors) is a SEC-registered investment advisor headquartered in West Conshohocken, Pennsylvania. The firm was founded in 1914 and is a subsidiary of Boenning & Scattergood Holdings, Inc. 1914 Advisors provides personalized fee-based financial planning and investment management to individuals, pension and profit-sharing plans, trusts, estates, charitable organizations and small businesses.

Mufson Howe Hunter & Co. LLC provides investment advice. It focuses on middle market companies seeking growth capital and liquidity through recapitalizations, mergers & acquisitions and private placements. The firm provides sell-side advisory, buy-side assignments, recapitalizations, private placements of growth capital, financial advisory services and valuations services to the business services, cleantech, consumer and retail, life science tools and services, specialty distribution and manufacturing and technology industries. The company was founded by Michael J. Mufson, Anthony Lopez-Ona and Michael J. Howe in 2004 and is headquartered in Philadelphia, PA.