IRVING, TX – September 7, 2006 – NGP Energy Capital Management is pleased to announce the formation of NGP Energy Infrastructure and Resources Partners, L.P. as the latest addition to its family of investment initiatives focused on the energy and natural resources industries. NGP Energy Infrastructure and Resources Partners, L.P. will concentrate on making direct equity investments in infrastructure ventures in various sectors of the midstream energy industry as well as all facets of the mining and minerals sector. The fund size is targeted at $1.5 billion, of which $75.0 million has been committed by the principals of the fund’s management group. The fund will be managed by the two founding principals, John T. Raymond, who will serve as CEO and a Managing Partner, and John G. Calvert, who will serve as a Managing Partner. Mr. Raymond and Mr. Calvert have a combined 29 years experience in the oil and gas and natural resource sectors. NGP Energy Capital Management will oversee the activities of the fund.