Corporate Event - Atlas Energy Resources, LLC ("ATN") - Effective Wednesday, September 30, 2009

On September 25, 2009, Shareholders of Atlas Energy Resources, LLC (“ATN”) voted concerning the proposed merger with Atlas America, Inc. (“ATLS”). The merger was approved and subsequently consummated on September 29, 2009. As a result, each existing ATN Common Share will be converted into the right to receive 1.16 “New” Atlas Energy, Inc. Common Shares. Cash will be paid in lieu of fractional ATLS shares.

This action will be coordinated with the Options Clearing Corporation.

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