"Alta Resources' successful track record in mapping shale plays, particularly their development efforts in the Fayetteville Shale, which led to their Marcellus mapping expertise, was one of the key factors in the acquisition."

Ralph Hill,
President of Williams

Partners

Alta's partners give the company exceptionally strong financial backing combined with deep industry knowledge and experience. Our long time partners include George P. Mitchell, Contango Oil and Gas, Inc., and Stedman West.

In 2011, Alta and Blackstone Capital Partners, an affiliate of the Blackstone Group, (NYSE:BX) announced the formation of Alta Energy Partners, and a concurrent commitment to invest up to $1 billion to acquire and develop unconventional oil and gas assets in North America.

About the Blackstone Group

Blackstone is one of the world's leading investment and advisory firms and is an experienced and active investor in the energy and natural resources sector. We seek to create positive economic impact and long-term value for our investors, the companies we invest in, the companies we advise and the broader global economy. We do this through the commitment of our extraordinary people and flexible capital. Our alternative asset management businesses include the management of private equity funds, real estate funds, hedge fund solutions, credit-oriented funds and closed-end mutual funds. The Blackstone Group also provides various financial advisory services, including financial and strategic advisory, restructuring and reorganization advisory and fund placement services. Further information is available at www.blackstone.com. Follow us on Twitter@Blackstone.