NGP Energy Capital Management Announces Investment by Barclays Capital.

IRVING, Texas -- NGP Energy Capital Management ("NGP"), one of the premier private equity firms in the energy industry, is pleased to announce that Barclays Capital, the investment banking division of Barclays Bank PLC, has purchased a 40% stake in the firm. The investment, made by its principal investing and private equity business, gives Barclays Capital an attractive asset in the important North American energy capital management business, and affords NGP an investor with a global presence. It will enable NGP to expand significantly its footprint in the energy capital management business and continue to differentiate its platform by providing unparalleled resources for its portfolio companies. This groundbreaking transaction brings together the most successful and diversified investment firm in the energy business and one of the premier financial institutions worldwide.

NGP's CEO, Ken Hersh, explained, "Over the past two decades, we have established NGP as the premier provider of capital for energy companies in North America. However, in such a global industry as energy, we felt the need to align ourselves with an investor who would position us for whatever the future holds. The energy industry is becoming more complicated each day and is influenced by economic and political events worldwide. An investment by Barclays Capital now gives us access to all of the world's leading economies. Each of our investment initiatives is impacted by events around the world."

He continued, "It is imperative that we not only understand the global context of the energy picture, but also it is important that we have those investment opportunities available to us. Barclays Capital is very well positioned with key relationships spanning the globe."

Bob Diamond, President of Barclays PLC, said, "Commodities is an important growth market which we identified early and where we have risen to one of the top three global commodities service providers in the world. This investment supports that footprint and is our first principal investment in North America, an area where we have had great success in Europe. It is another landmark in our continued Americas expansion."

Roger Jenkins, Head of Principal Investing and Private Equity at Barclays Capital, explained the rationale for the investment, "We see energy as one of the most dynamic and interesting private equity investment areas over the next 10-15 years. We sought a way to jump start our presence in the direct energy investment business. NGP has the most advanced and well regarded investment franchise in the energy industry. It met all of our criteria, and we are thrilled to make the investment."

Since 1988, NGP has established itself as the leading capital provider and sponsor for companies in the North American energy business. Its existing investment platform is comprised of the following:

- Natural Gas Partners, a family of eight private equity and two co-investment funds with total cumulative capital under management in excess of $3.2 billion,

- NGP Capital Resources Company (NASDAQ: "NGPC"), a $261 million fund formed in 2004 to make loans to energy companies, and

- NGP Energy Technology Partners, L.P., a $148 million fund organized in 2005 to make growth capital investments for companies providing technology-related solutions to the oil and gas, power, and alternative energy industries.

In addition, NGP is currently sponsoring a new fund, NGP Energy Infrastructure and Resources Partners, L.P., which will provide equity for midstream energy companies and projects as well as mining and minerals enterprises.

About NGP Energy Capital Management

Founded in 1988, NGP Energy Capital Management is the premier investment franchise in the energy industry. The NGP platform includes its North American private equity fund complex that consists of a $2.9 billion family of funds investing in oil and gas production, midstream and oilfield service companies plus $350 million of co-investment funds that invest in direct oil and gas property interests alongside NGP portfolio companies. In addition, the firm oversees the activities of NGP Capital Resources Company (NASDAQ: "NGPC"), a $261 million publicly-traded business development company that focuses on providing senior debt and mezzanine capital to the energy industry and NGP Energy Technology Partners, L.P., a $148 million fund investing growth equity capital in companies providing technology-related products and services to the oil and gas, power and alternative energy sectors.

NGP Energy Capital Management is based in Irving, Texas and may be reached at [phone] or www.ngpenergycapital.com.

About Barclays Capital

Barclays Capital is the investment banking division of Barclays Bank PLC which has an AA long-term credit rating and a balance sheet of over u986 billion (US$1.8 trillion*). With a distinctive business model, Barclays Capital provides large corporate, government and institutional clients with solutions to their financing and risk management needs. Barclays Capital has offices in 26 countries, employs over 10,500 people and has the global reach and distribution power to meet the needs of issuers and investors worldwide. For further information about Barclays Capital, please visit our website www.barclayscapital.com.

*US$ figure was derived using the US$/u exchange rate at 30.06.06 of US$1.85/u1

Barclays Capital - the investment banking division of Barclays Bank PLC. Registered in England 1026167. Registered office 1 Churchill Place, London, E14 5HP. Authorised and regulated by the Financial Services Authority and a member of the London Stock Exchange.