PRESS RELEASES

FOR IMMEDIATE RELEASE

Contact:
Ken Purgason
President and CEO
281.240.8444 Ext. 202

Dan McVay Appointed to Vice President, Commercial and Business Development for Tristream Energy, LLC

HOUSTON (December 2, 2010) - Tristream Energy, LLC announced today that Dan McVay has joined the firm in the role of Vice President, Commercial and Business Development. McVay brings 34 years of experience in the midstream energy sector. His specialties include commercial operations, business development and strategic planning.

Immediately prior to joining Tristream Energy, McVay was Senior Vice President for Crosstex Energy where he acted as the division head for the largest contract gas treating business in the industry. Past senior level positions included Warren Petroleum, where he was responsible for gas gathering and processing as well directing their marine transportation fleet – and Williams where he led the Gulf Coast division including Transco Pipeline's production area supply group. McVay has managed gathering and processing and treating facilities in the Gulf Coast, Permian Basin, and Oklahoma as well as the Barnett and Haynesville Shale areas.

"There are tremendous untapped opportunities in the midstream gas sector and Dan will play a pivotal role in developing strategies for Tristream to seize upon them," said Ken Purgason, President and Chief Executive Officer of Tristream Energy. "I am extremely pleased to have an executive of his caliber join our team. His extensive industry knowledge coupled with his expertise in all facets of the gas gathering and gas processing business make him a perfect fit for this position."

McVay received his BS in Civil Engineering from the University of Houston. He is a board member of the North Texas Gas Processors Association.

About Tristream Energy
Tristream Energy is a midstream services company that builds, owns and operates pipeline infrastructure and provides natural gas producers with processing, gathering, marketing and other related services. Tristream Energy is headquartered in Sugar Land, Texas. For more information, visit www.tristreamenergy.com.