Weinzierl Appointed Venture Partner at Natural Gas Partners

John Weinzierl was named a venture partner at Natural Gas Partners. Weinzierl is CEO of Memorial Resource Development as well as CEO and Chairman of the board for the GP of Memorial Production Partners. Previously, he spent 12 years at NGP Energy Capital Management, most recently as MDand Operating Partner of its Natural Gas Partners funds.

PRESS RELEASE

Natural Gas Partners (“NGP”), one of the leading private equity investors in the oil and gas industry, announced today that John A. Weinzierl has accepted a new role as a Venture Partner.

Mr. Weinzierl is the Chief Executive Officer of Memorial Resource Development LLC and serves as the Chief Executive Officer and Chairman of the Board of Directors for the general partner of Memorial Production Partners LP. Prior to these roles, Mr. Weinzierl spent 12 years with NGP Energy Capital Management most recently as Managing Director and Operating Partner of its Natural Gas Partners funds concentrating his efforts on sourcing investment opportunities as well as monitoring portfolio companies.

Mr. Weinzierl has over 21 years of experience in the industry including working for Conoco, Inc. as a petroleum engineer in various capacities around the world. He served as a director for several of NGP’s private portfolio companies and as a director of Eagle Rock Energy G&P, LLC. Mr. Weinzierl holds a B.S. in petroleum engineering and an M.B.A. from the University of Texas at Austin, where he sits on the Engineering Advisory Board of the Cockrell School of Engineering.

“We are very pleased to have John continue his relationship with NGP as a Venture Partner,” said Ken Hersh, CEO and Managing Partner of NGP Energy Capital Management. “After a stellar run at NGP, John is now the CEO of Memorial Resource Development, one of NGP’s largest portfolio companies. In that capacity, his unique insight and experience will be a vital resource for our firm. We look forward to continuing our long relationship.”

About Natural Gas Partners

Founded in 1988, Natural Gas Partners (NGP) is a $7.2 billion family of private equity investment funds organized to make investments in the natural resources sector. NGP is part of the investment platform of NGP Energy Capital Management, the premier investment franchise in the natural resources industry, which together with our affiliates have managed over $9.5 billion in committed capital since 1988.

For Information: www.naturalgaspartners.com or www.ngpenergycapital.com