X0202 5 2005-12-31 0 0 0 0000203248 SOUTHERN UNION CO SUG 0001184005 ROUNTREE GEORGE III C/O SOUTHERN UNION COMPANY 5444 WESTHEIMER ROAD HOUSTON TX 77056 1 0 0 0 Common Stock 2005-12-31 5 P 0 3832.767 A 36525.567 I Director's Deferred Compensation Plan Common Stock 55554 D Common Stock 1840.65 I Owned by Spouse This information concerns shares held under the Issuer?s Director?s Deferred Compensation Plan. This report reflects shares purchased for the plan by the plan trustee, at such prices as were available in the open market at the time of such purchases. Information reported herein is based on a plan statement for the period ended December 31, 2005. Reflects the 5% stock dividend payable on September 1, 2005, to shareholders of record as of August 22, 2005. This amount includes 4200 restricted shares which vested on January 2, 2006. Robert M. Kerrigan, III for George Rountree, III 2006-02-14