Constellation Energy Partners LLC

Stephen R. Brunner was appointed President and Chief Executive Officer of Constellation Energy Partners in March 2008 and became an employee of the company in January 2009. He continues to serve in the role of Chief Operating Officer, a role he assumed in February 2008. Mr. Brunner has more than 25 years of experience operating oil and gas properties both domestically and internationally, and is responsible for managing the daily operations, including the development and production of oil and natural gas properties. Prior to joining Constellation Energy Partners, Mr. Brunner also served as a Vice President for Constellation Energy Commodities Group, Inc., where he provided support for Constellation Energy Partners in various operational activities. Prior to joining Constellation Energy in February 2008, Mr. Brunner served as the Executive Vice President of Operations for Pogo Producing Company, where he was responsible for all aspects of exploration, production, acquisition and divestiture activity for seven business units in the United States, Canada, New Zealand and Vietnam. During his 13-year tenure at Pogo, Mr. Brunner also served as Vice President of Operations, overseeing both domestic and international operations. He served as the Resident Manager of Thaipo Limited, a subsidiary of Pogo, as well as Offshore Operations Manager. Prior to his career with Pogo, he held various positions with Zilkha Energy Company, Chevron Corporation and Tenneco Oil Company. Mr. Brunner earned a BS in petroleum engineering from Louisiana Tech University in 1981.

Charles C. Ward was appointed Chief Financial Officer and Treasurer of Constellation Energy Partners in March 2008 and became an employee of the company in January 2009. Mr. Ward has over 15 years of finance and energy industry experience. Prior to joining Constellation Energy Partners, Mr. Ward also served as a Vice President for Constellation Energy Commodities Group, Inc., where he provided support for Constellation Energy Partners in various finance activities and helped to lead the company through its initial public offering in November 2006. Prior to joining Constellation Energy in November 2005, Mr. Ward held finance and asset management positions at Enron North America, El Paso Energy, and Tenneco. Mr. Ward earned a MBA from Rice University in 1992 and a BS in accounting from the University of Houston in 1987.

John N. Seitz is vice chairman of the board of directors of Endeavour International Corporation. He was one of the original co-founders of Endeavour in 2004 and the strategist behind its focus on North Sea exploration. Previously, he served as co-chief executive officer of the company. Seitz spent most of his career in various executive and management roles at Anadarko Petroleum Corporation, rising to the position of chief executive officer, chief operating officer and president. In 2000, the Houston Geological Society honored him as a "Legend in Wildcatting." Seitz began his career as a petroleum geologist with Amoco Production Company. Seitz is a Certified Professional Geological Scientist from the American Institute of Professional Geologists and a licensed professional geoscientist with the State of Texas. Seitz serves as a trustee for the American Geological Institute Foundation and a director for ION Geophysical Corporation and Constellation Energy Partners, LLC.

Richard S. Langdon. Mr. Langdon became a Director of Gasco and a member of the audit committee in March 2003 and of the nominating committee since April 2006. Mr. Langdon is currently the President and Chief Executive Officer of Matris Exploration Company, LP, a privately held exploration and production limited partnership active in California, and Sigma Energy Ventures, LLC, a privately held exploration and production limited liability company active in Texas. Mr. Langdon became the President and Chief Executive Officer of Matris in the beginning of 2003 and the President and Chief Executive Officer of Sigma in December of 2007. From 1997 until December 2002, Mr. Langdon served as Executive Vice President and Chief Financial Officer of EEX Corporation, a New York Stock Exchange listed exploration and production company that was acquired by Newfield Exploration in late 2002. Before joining EEX Corporation, Mr. Langdon was an oil and gas consultant from August 1996 to March 1997. Prior to that, he held various positions with the Pennzoil Companies since 1991, including Executive Vice President International Marketing Pennzoil Products Company, from June 1996 to August 1996; Senior Vice President Business Development & Shared Services Pennzoil Company from January 1996 to June 1996; and Senior Vice President Commercial & Control Pennzoil Exploration & Production Company from December 1991 to December 1995. Mr. Langdon is currently a member of the Board of Constellation Energy Partners LLC, a public limited liability company focused on the acquisition, development and exploitation of oil and natural gas properties and related midstream assets. Mr. Langdon holds a B.S. in Mechanical Engineering and a Masters of Business Administration, both from the University of Texas at Austin.

Sandi Hennequin is a Director, Energy Policy, New England for Constellation Energy Resources. In this position, she represents Constellation Energy's interests in the New England Power Pool ("NEPOOL") stakeholder process, before regulatory utility commissions and legislatures, and within trade associations. With over 13 years of experience in the energy industry, Sandi has focused primarily on electric restructuring, all aspects of generation asset transactions and advocating for fair wholesale electric market structures in New England. Currently she serves as Vice Chair of the NEPOOL Markets Committee and as Secretary of the Northeast Energy and Commerce Association ("NECA"). She has been heavily involved with NECA since 2004, serving on the Board of Directors and co-chairing committees such as the Regulatory and Legislative Committee, and the External Communication Committee. Sandi is also very engaged in civic activities, chairing the event committee of Families First, serving on her town's Blue Ribbon Committee on Sustainable Practices and volunteering as a lector in her church. Her mix of professional and civic leadership recently led to her being selected by the New Hampshire Business and Industry Association and the Union Leader as one of 2007's top "forty under 40" leaders in New Hampshire. She holds a B.A. in Political Communication from the George Washington University and a Masters of Public Administration from Syracuse University's Maxwell School. Sandi lives with her husband, two young daughters and beloved Corgi in Portsmouth, NH.