SOUTHERN UNION CO

Q: Sep 30 2013

Q: Jun 30 2013

Q: Mar 31 2013

FY: Dec 31 2012

Q: Sep 30 2012

Q: Jun 30 2012

Q: Mar 31 2012

FY: Dec 31 2011

FY: Dec 31 2011

Q: Sep 30 2011

Q: Jun 30 2011

Q: Mar 31 2011

FY: Dec 31 2010

Q: Sep 30 2010

Q: Jun 30 2010

Q: Mar 31 2010

FY: Dec 31 2009

Q: Sep 30 2009

Q: Aug 6 2009

Q: May 11 2009

7.01,9.01

8.01,9.01

2.01,7.01,9.01

7.01,9.01

1.01,3.03,8.01,9.01

7.01,9.01

1.01,2.01,2.03,5.01,7.01,9.01

1.01,7.01,9.01

7.01,9.01

1.01,9.01

1.01,7.01,9.01

7.01,9.01

Entry into a Material Definitive Agreement

Regulation FD Disclosure

7.01,9.01

4.01,9.01

1.01,1.02,2.01,3.01,3.03,5.01,5.02,5.03,9.01

8.01,9.01

8.01,9.01

8.01,9.01

Certification of termination of registration of a class of securities (Section 12(b))

No description available

Post Effective Amendment to S-8

Certification of termination of registration of a class of securities (Section 12(b))

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Notification of removal from listing and/or registration on a national securities exchange

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

No description available

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Required Information in Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Additional proxy soliciting materials filed by a non-management party

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

BRODSKY DAVID L

Scherer Allan D

ROUNTREE GEORGE III

McCarter Thomas N III

JACOBI HERBERT H

GITTER KURT A

DENIUS FRANK W

Marshall Richard N

Hack Robert J

Gaudiosi Monica M

Farrell Roger A.

Bond Robert O

Aldrich George E

LINDEMANN GEORGE L

Herschmann Eric D

Herschmann Eric D

GITTER KURT A

DENIUS FRANK W

JACOBI HERBERT H

ROUNTREE GEORGE III

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Letter from the SEC

Correspondence with the SEC