0000898822-10-000781 8-K 2 20101207 1.01 9.01 20101208 20101208 ATLAS ENERGY, INC. 0001279228 4922 510404430 DE 1231 8-K 34 001-32169 101238700 WESTPOINTE CORPORATE CENTER ONE 1550 CORAOPOLIS HEIGHTS RD. 2ND. FLOOR MOONTOWNSHIP PA 15108 412-262-2830 WESTPOINTE CORPORATE CENTER ONE 1550 CORAOPOLIS HEIGHTS RD. 2ND. FLOOR MOONTOWNSHIP PA 15108 ATLAS AMERICA INC 20040209 8-K 1 atlas_8k.htm EX-2.1 2 ex2_1.htm