Breitburn Energy Partners LP

Thursday, April 26, 2007

Halbert S. Washburn & Randall H. Breitenbach

Co-Founder and Co-CEO

Mr. Washburn has been the Co-Chief Executive Officer and a Director of BreitBurn GP LLC since March 2006. Mr. Washburn is also the Co-Founder, Co-Chief Executive Officer, and a Director of BreitBurn Energy Corporation.

Mr. Washburn is Executive Committee Member and Treasurer of the California Independent Petroleum Association, and has been named Chairman for the 2008 term. Mr. Washburn is a past Chairman of the Wildcat Committee, a California oil industry charitable organization, and past Chairman of the Stanford University Petroleum Investments Committee. Mr. Washburn currently serves as a member of the Board of Directors and Audit and Compensation Committees of Rentech, Inc., which is an alternative fuels company.

Prior to founding BreitBurn in 1988, Mr. Washburn was Manager of Engineering at Eastern American Energy Corporation.

Mr. Washburn holds a B.S., with Distinction, in Petroleum Engineering from Stanford University.

Mr. Breitenbach has been the Co-Chief Executive Officer and a Director of BreitBurn GP, LLC since March 2006. Mr. Breitenbach is also the Co-Founder, Co-Chief Executive Officer, and a Director of BreitBurn Energy Corporation.

Mr. Breitenbach currently serves as Lead Trustee Committee Chairman for Hotchkis and Wiley Funds, Chairman for Stanford University’s Petroleum Investment Committee Endowment, Advisor for Stanford’s School of Earth Sciences, and board member of the California Independent Petroleum Association. Mr. Breitenbach is also active with several charitable organizations and is a past Chairman of the Wildcat Committee, a California oil industry charitable organization.

Prior to founding BreitBurn in 1988, Mr. Breitenbach was a Corporate Financial Analyst at ARCO and held a number of production and engineering positions at Amoco, Getty, Chevron and Sohio.

Mr. Breitenbach holds both a B.S and M.S. degree in Petroleum Engineering from Stanford University and an M.B.A. from Harvard Business School.