NICOR INC Form DEFA14A: Additional definitive proxy soliciting materials

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

2011-06-09: Form DEFA14A; Description DEFA14A; Document c65087bdefa14a.htm.
2011-06-09: Form DEFA14A; Description DEFA14A; Document c65087adefa14a.htm.
2011-05-27: Form DEFA14A; Description DEFA14A; Document c64899adefa14a.htm.
2011-05-27: Form DEFA14A; Description DEFA14A; Document c64899bdefa14a.htm.

Filed	Form	Description	Document
2011-06-09	DEFA14A	DEFA14A	c65087bdefa14a.htm
2011-06-09	DEFA14A	DEFA14A	c65087adefa14a.htm
2011-05-27	DEFA14A	DEFA14A	c64899adefa14a.htm
2011-05-27	DEFA14A	DEFA14A	c64899bdefa14a.htm
2011-05-27	DEFA14A	DEFA14A	c64889adefa14a.htm
2011-05-03	DEFA14A	DEFA14A	c64450defa14a.htm
2011-05-02	DEFA14A	DEFA14A	c64412bdefa14a.htm
2011-05-02	DEFA14A	DEFA14A	c64412adefa14a.htm
2011-04-29	DEFA14A	DEFA14A	c64412cdefa14a.htm
2011-04-22	DEFA14A	DEFA14A	c64283adefa14a.htm
2011-04-22	DEFA14A	DEFA14A	c64283defa14a.htm
2011-04-11	DEFA14A	DEFA14A	c64027bdefa14a.htm
2011-04-11	DEFA14A	DEFA14A	c64027edefa14a.htm
2011-04-11	DEFA14A	DEFA14A	c64027fdefa14a.htm
2011-04-11	DEFA14A	DEFA14A	c64027cdefa14a.htm
2011-04-11	DEFA14A	DEFA14A	c64027ddefa14a.htm
2011-04-11	DEFA14A	DEFA14A	c64027adefa14a.htm
2011-04-08	DEFA14A	DEFA14A	c63997bdefa14a.htm
2011-04-08	DEFA14A	DEFA14A	c63997adefa14a.htm
2011-04-07	DEFA14A	DEFA14A	c63942defa14a.htm
2011-03-02	DEFA14A	DEFA14A	c63352defa14a.htm
2011-02-09	DEFA14A	DEFA14A	c62870defa14a.htm
2011-02-07	DEFA14A	DEFA14A	c62827defa14a.htm
2011-01-25	DEFA14A	DEFA14A	c62656bdefa14a.htm
2011-01-25	DEFA14A	DEFA14A	c62656adefa14a.htm
2011-01-18	DEFA14A	DEFA14A	c62416bdefa14a.htm
2011-01-18	DEFA14A	DEFA14A	c62416adefa14a.htm
2011-01-13	DEFA14A	DEFA14A	c62350defa14a.htm
2011-01-07	DEFA14A	DEFA14A	c62161bdefa14a.htm
2011-01-07	DEFA14A	DEFA14A	c62161adefa14a.htm
2010-12-20	DEFA14A	DEFA14A	c61910defa14a.htm
2010-12-17	DEFA14A	DEFA14A	c61885defa14a.htm
2010-12-09	DEFA14A	DEFA14A	c61749defa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713adefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713idefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713bdefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713hdefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713jdefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713edefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713fdefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713gdefa14a.htm
2010-12-07	DEFA14A	DEFA14A	c61713ddefa14a.htm
2010-12-07	DEFA14A	FORM 8-K	c61710e8vk.htm
2010-12-07	DEFA14A	FORM 8-K	c61708e8vk.htm
2006-03-10	DEFA14A	Additional definitive proxy soliciting materials	nicor_amendment.htm
2005-03-18	DEFA14A	Additional definitive proxy soliciting materials	ni911059.htm
2005-03-14	DEFA14A	Additional definitive proxy soliciting materials	ni910070.htm