SOUTHERN UNION COMPANY DECLARES QUARTERLY DIVIDEND

HOUSTON, December 16, 2011 – The Board of Directors of Southern Union Company (NYSE:SUG) has approved its regular quarterly cash dividend of $0.15 per share on the Company's common stock. The dividend is payable on January 13, 2012, to holders of record at the close of business on December 30, 2011.

About Southern Union Company
Southern Union Company, headquartered in Houston, is one of the nation’s leading diversified natural gas companies, engaged primarily in the transportation, storage, gathering, processing and distribution of natural gas. The company owns and operates one of the nation’s largest natural gas pipeline systems with more than 20,000 miles of gathering and transportation pipelines and one of North America’s largest liquefied natural gas import terminals, along with serving more than half a million natural gas end-user customers in Missouri and Massachusetts. For further information, visit www.sug.com.



For further information:

John P. Barnett, Director of External Affairs
713-989-7556

Richard N. Marshall
Senior Vice President and CFO
713-989-2000