Richard Meyers

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.

PricewaterhouseCoopers LLC provides assurance, tax and advisory services. Its services include audit and assurance, consulting, deals, human resources, legal, tax, and family business. The firm also offers accountability, risk management, structuring, mergers and acquisitions, and performance and process improvement. The company was founded in 1998 and is headquartered in Buffalo, NY.

Schneider Downs & Co., Inc. is a regional accounting and business consulting firm that provides tax, audit, and business advisory services to public and private companies and nonprofit organizations. The private company is based in Pittsburgh, PA, and has subsidiaries in the United States. The firm offers more than 80 services from five business units, including assurance and tax advisors, business advisors, technology advisors, wealth management advisors, and corporate finance advisors. Schneider Downs partners with clients to provide comprehensive IT audits and compliance reviews that ensure effective and efficient technology controls that better align the technology function with their business and risk strategies. Steven D. Thompson has been the CEO of the company since 2001.

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

Rockies Region Private LP engages in the exploration and development of oil and natural gas properties in Colorado. The company was founded on December 6, 2005 and is headquartered in Denver, CO.

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.

Part of Chevron Corp., PDC 2004-B LP provides oil and natural gas drilling services. The private company is based in Denver, CO. The company was founded in 2004. Richard Wayne McCullough has been the CEO of the company since 2007.