| Filed On | Filing |
|---|---|
| 26 May 2009 | REGISTRATION STATEMENT |
| 24 Jun 2008 | SHELF REGISTRATION STATEMENT |
| 18 Jun 2007 | WISCONSIN POWER & LIGHT |
| 08 Sep 2006 | REGISTRATION STATEMENT |
| 31 Mar 2004 | S-3 |
| 27 Sep 1999 | FORM S-3 |
| 31 Jul 1998 | S-3 |
| 07 Jul 1995 | WICONSIN POWER & LIGHT FORM S-3 |
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