About PDC Energy

Senior Management Team

2011-james

James M. Trimble

President and Chief Executive Officer

Mr. Trimble was appointed President and Chief Executive Officer of the Company in June 2011, having served on the Board since 2009. From August 2005 until November 2010, Mr. Trimble served as Managing Director of Grand Gulf Energy, Limited (ASX: GGE), a public company traded on the Australian Securities Exchange, and retired from the Board of Directors of Grand Gulf Energy, Limited in November 2011. In January 2005, Mr. Trimble founded and served until November 2010 as President and Chief Executive Officer of the U.S. subsidiary Grand Gulf Energy Company LLC, an exploration and development company focused primarily on drilling in mature basins in Texas, Louisiana and Oklahoma. From 2000 through 2004, Mr. Trimble was Chief Executive Officer of Elysium Energy and then Tex-Cal Energy LLC, both of which were privately held oil and gas companies that he managed through troubled workout solutions. Prior to this, he was Senior Vice President of Exploration and Production for Cabot Oil and Gas (NYSE: COG). Mr. Trimble was hired in July 2002 as CEO of TexCal (formerly Tri-Union Development) to manage a distressed oil and gas company through bankruptcy, and that company filed for Chapter 11 reorganization within 45 days after the date that Mr. Trimble accepted such employment. He successfully managed the company through its exit from bankruptcy in 2004. From November 2002 until May 2006, he also served as a director of Blue Dolphin Energy, an independent oil and gas company with operations in the Gulf of Mexico. Mr. Trimble currently serves on the Board of Directors of Seisgen Exploration LLC, a small private exploration and production company operating in southern Texas. In determining Mr. Trimble’s qualifications to serve on our Board, in addition to his status as CEO of the Company, the Board has considered, among other things, that Mr. Trimble is a Registered Professional Engineer who brings many years of broad oil and gas industry executive management experience to the Board, including experience as a chief operating officer, and knowledge of current developments and best practices in the industry.

2009-gysle

Gysle R. Shellum

Chief Financial Officer

Mr. Shellum was appointed Chief Financial Officer in 2008. Prior to joining the Company, Mr. Shellum served from September 2004 through September 2008 as Vice President, Finance and Special Projects of Crosstex Energy, L.P. in Dallas, Texas. Crosstex Energy, L.P. is a publicly traded Delaware limited partnership whose securities are listed on the NASDAQ Global Select Market and is an independent midstream energy company engaged in the gathering, transmission, treating, processing and marketing of natural gas and natural gas liquids. Mr. Shellum holds a BBA in Accounting from the University of Texas, Arlington.

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Barton R. Brookman, Jr.

Senior Vice President Exploration and Production

Mr. Brookman, Senior Vice President Exploration and Production, joined PDC in July 2005. Prior to joining PDC, Mr. Brookman worked for Patina Oil and Gas and its predecessor Snyder Oil from 1988 until 2005 in a series of operational and technical positions of increasing responsibility, ending his service as Vice President of Operations for Patina. Mr. Brookman holds a B.S. in Petroleum Engineering from the Colorado School of Mines and a M.S. in Finance from the University of Colorado.

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Lance A. Lauck

Senior Vice President - Corporate Development

Mr. Lauck, Senior Vice President of Corporate Development since January 1, 2012, joined PDC in August 2009 as Senior Vice President Business Development. Previously, he served as Vice President — Acquisitions and Business Development for Quantum Resources Management LLC from 2006 to 2009. From 1988 until 2006, Mr. Lauck worked for Anadarko Petroleum Corporation, where he initially held production, reservoir and acquisition engineering positions before being promoted to various management level positions in the areas of acquisitions and divestitures, corporate mergers and business development. From 1984 to 1988, Mr. Lauck worked as a production engineer for Tenneco Oil Company. Mr. Lauck graduated from the University of Missouri-Rolla in 1984 with a bachelor of science degree in Petroleum Engineering.

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Daniel W. Amidon

General Counsel and Secretary

Mr. Amidon was appointed General Counsel and Secretary in July 2007. Prior to joining PDC, Mr. Amidon was employed by Wheeling-Pittsburgh Steel Corporation beginning in July 2004, where he served in several positions including General Counsel and Secretary. Prior to his employment with Wheeling-Pittsburgh Steel, Mr. Amidon was employed by J&L Specialty Steel Inc. from 1992 through July 2004 in positions of increasing responsibility, including General Counsel and Secretary. Mr. Amidon practiced with the Pittsburgh law firm of Buchanan Ingersoll PC from 1986 through 1992. Mr. Amidon graduated from University of Virginia, with honors, majoring in economics. He received his J.D. from the Dickinson School of Law (currently named Penn State Law).