X0202 4 2006-04-20 0 0000203248 SOUTHERN UNION CO SUG 0001184013 DOWLING HARRY E C/O SOUTHERN UNION COMPANY 5444 WESTHEIMER ROAD HOUSTON TX 77056 0 1 0 0 President of Division Common Stock 2006-04-20 4 M 0 5996 14.6521 A 21400.95 D Common Stock 2006-04-20 4 S 0 5996 25.45 D 15404.95 D Common Stock 2006-04-20 4 M 0 4410 16.8255 A 19814.95 D Common Stock 2006-04-20 4 S 0 4410 25.45 D 15404.95 D Common Stock 9631.5663 I 401(K) Plan Common Stock 27437.3356 I Supplemental Deferred Compensation Plan Employee Stock Option (right to purchase) 14.6521 2006-04-20 4 M 0 5996 14.6521 D 2011-06-05 Common Stock 5996 7658 D Employee Stock Option (right to purchase) 16.8255 2006-04-20 4 M 0 4410 16.8255 D 2009-12-09 Common Stock 4410 13230 D Employee Stock Option (right to purchase) 24.0572 2015-07-26 Common Stock 2048 2048 D Of these shares, 3,150 shares are restricted shares that vest in 25% increments each year beginning July 26, 2006. Information reported herein is based on a report provided by the plan trustee and reflects the Reporting Person's beneficial ownership as of February 17, 2006, the date of his last transaction involving 401(K) Plan shares. This information concerns shares held under the Issuer's Supplemental Deferred Compensation Plan. This report reflects shares purchased for the plan by the plan trustee, at the sole discretion of the trustee, at such prices as were available in the open market at the time of such purchases. Information reported herein is based on the plan statement for the period ending December 31, 2005. The remaining options are exercisable on July 1, 2006. Of the remaining options, 4,410 become exercisable on March 1, 2007, 4,410 on March 3, 2008 and 4,410 on March 2, 2009. These options vest in 25% increments each year commencing July 26, 2006. Robert M. Kerrigan, III for Harry E. Dowling 2006-04-21