BOSTON, MA  (July 3, 2007) --

ArcLight Capital Partners, LLC (“ArcLight”), one of the world’s leading energy investment firms, today announced the closing of ArcLight Energy Partners Fund IV, L.P. (“Fund IV”) with $2.1 billion in capital commitments.  The closing of Fund IV comes only 15 months after the firm closed its $2.1 billion third fund, ArcLight Energy Partners Fund III, L.P., bringing the firm’s total capital under management to over $6.8 billion.   ArcLight has invested $4.6 billion of its capital in 75 energy investments since the firm was founded in 2001.

“We would like to thank our limited partners for their cooperation in bringing this fundraising to a timely close,” said Daniel Revers, ArcLight’s Managing Partner.  “Their dedicated support allows us to stay focused on identifying and realizing high value investments in the energy sector rather than raising new funds.”
 
About ArcLight Capital Partners, LLC
ArcLight Capital Partners, LLC is one of the world’s leading energy infrastructure investing firms with more than $6.8 billion under management.  ArcLight invests broadly across the entire energy value chain including oil, gas, and coal resources and infrastructure; power generation; and electric and gas transmission and distribution Founded in 2001, ArcLight has its headquarters in Boston and an office in New York City. ArcLight has 28 investment professionals and is led by its partners Daniel R. Revers and Robb E. Turner.  More information about ArcLight can be found at www.arclightcapital.com.  

                               
For more information:
Heidi Milne
Principal, Investor Relations    
ArcLight Capital Partners, LLC    
617-531-6304
hmilne@arclightcapital.com