-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 E4Q51wiSUZug/ng3dwQN45/ne7p7oi0GfEEIsVkL3zJHh1UOmLQUQxpdHSvnusBn
 JeS+7OVfBEZMjKb8hzQD2Q==

<SEC-DOCUMENT>0001033427-08-000040.txt : 20080407
<SEC-HEADER>0001033427-08-000040.hdr.sgml : 20080407
<ACCEPTANCE-DATETIME>20080407144118
ACCESSION NUMBER:		0001033427-08-000040
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20080407
DATE AS OF CHANGE:		20080407
GROUP MEMBERS:		BANCIRELAND (US) HOLDINGS, INC.
GROUP MEMBERS:		BIAM (US) INC.
GROUP MEMBERS:		BIAM HOLDINGS
GROUP MEMBERS:		IRIDIAN ASSET MANAGAMENT LLC
GROUP MEMBERS:		THE GOVERNOR AND COMPANY OF THE BANK OF IRELAND

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ATLAS AMERICA INC
		CENTRAL INDEX KEY:			0001279228
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				510404430
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-80454
		FILM NUMBER:		08742640

	BUSINESS ADDRESS:	
		STREET 1:		WESTPOINTE CORPORATE CENTER ONE
		STREET 2:		1550 CORAOPOLIS HEIGHTS RD. 2ND. FLOOR
		CITY:			MOONTOWNSHIP
		STATE:			PA
		ZIP:			15108
		BUSINESS PHONE:		412-262-2830

	MAIL ADDRESS:	
		STREET 1:		WESTPOINTE CORPORATE CENTER ONE
		STREET 2:		1550 CORAOPOLIS HEIGHTS RD. 2ND. FLOOR
		CITY:			MOONTOWNSHIP
		STATE:			PA
		ZIP:			15108

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IRIDIAN ASSET MANAGEMENT LLC/CT
		CENTRAL INDEX KEY:			0001033427
		IRS NUMBER:				061439577
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		276 POST RD WEST
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880-4704
		BUSINESS PHONE:		2033417800

	MAIL ADDRESS:	
		STREET 1:		276 POST ROAD WEST
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880-4704
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>atlasamerica13g1033108.txt
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>atlasamericaex99.txt
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>3
<FILENAME>limitedpowerofattorney.txt
</DOCUMENT>
</SUBMISSION>