Dennis A. Holtz

Atlas America, Inc. engages in the development, production and transportation of natural gas and oil in western New York, eastern Ohio, western Pennsylvania and Tennessee. The company, through its wholly owned subsidiary transports natural gas from wells to interstate pipelines and end users as well as operates a natural gas processing facility. The company has reserves of approximately 171.6 billion cubic feet of natural gas equivalents. The company was incorporated in 2000 and is headquartered in Moon Township, PA.

Atlas Energy, Inc. operates as an independent natural gas producers in the Appalachian and Michigan Basins. It also develops in the Marcellus Shale in Pennsylvania. The company was founded in September 2000 and is headquartered in Moon Township, PA.

Atlas Energy LP develops and provides natural gas and oil. The company was founded on December 15, 2005 and is headquartered in Pittsburgh, PA.

Atlas Pipeline Holdings GP LLC provides mid stream energy services. It is engaged in transmission, gathering and processing of natural gas in the mid-continent primarily Oklahoma, Arkansas, Texas and Appalachian. The company is located in Philadelphia, PA.

Atlas Energy Group LLC is an energy management company, which engages in the acquisition and development of upstream and midstream oil and gas assets. It operates through the following segments: Atlas Resource Partners, Atlas Growth Partners, and Corporate and Other. The company was founded in October, 2011 and is headquartered in Fort Worth, TX.

Atlas Resource Partners LP is an exploration and production master limited partnership. It develops and produces natural gas, crude oil and natural gas liquids, with operations in basins across the United States. The company also sponsors and manages tax-advantaged investment partnerships, in which it co-invests, to finance a portion of natural gas and oil production activities. It also operates its business through following segments: Oil & Gas production, Well construction & completion and Other partnership management. Atlas Resource Partners was founded in October 2011 and is headquartered in Pittsburgh, PA.