NICOR INC Form DEF 14A: Definitive proxy statement

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

2011-04-19: Form DEF 14A; Period of report 2011-06-14; Description DEF 14A; Document c62198ddef14a.htm.
2010-03-10: Form DEF 14A; Period of report 2010-04-22; Description DEF 14A; Document c55736def14a.htm.
2009-03-11: Form DEF 14A; Period of report 2009-04-23; Description DEF 14A; Document c48760def14a.htm.
2008-03-12: Form DEF 14A; Period of report 2008-04-24; Description DEFINITIVE PROXY STATEMENT; Document c23255ddef14a.htm.

Filed	Form	Period of report	Description	Document
2011-04-19	DEF 14A	2011-06-14	DEF 14A	c62198ddef14a.htm
2010-03-10	DEF 14A	2010-04-22	DEF 14A	c55736def14a.htm
2009-03-11	DEF 14A	2009-04-23	DEF 14A	c48760def14a.htm
2008-03-12	DEF 14A	2008-04-24	DEFINITIVE PROXY STATEMENT	c23255ddef14a.htm
2007-03-14	DEF 14A	2007-04-26	NOTICE OF PROXY STATEMENT	nicor_nps.htm
2006-03-10	DEF 14A	2006-03-10	NOTICE OF ANNUAL MEETING	nicor_nps2a.htm
2005-03-11	DEF 14A	2005-04-21	Definitive proxy statement	d16417.htm
2004-03-05	DEF 14A	2004-04-15	DEFINITIVE PROXY STATEMENT	c83124ddef14a.htm
2003-03-27	DEF 14A	2003-04-30	DEFINITIVE FORM OF NOTICE AND PROXY STATEMENT	d12106.htm
2002-03-07	DEF 14A	2002-04-18	DEFINITIVE NOTICE & PROXY	c67568ddef14a.txt
2001-03-08	DEF 14A	2001-04-19	DEFINITIVE PROXY STATEMENT	c60218ddef14a.txt
2000-03-08	DEF 14A	2000-04-20	DEFINITIVE NOTICE AND PROXY
1999-03-01	DEF 14A	1999-04-15	FORM DEF 14A
1998-03-03	DEF 14A	1998-04-16	DEFINITIVE PROXY STATEMENT
1997-03-07	DEF 14A	1997-04-17	NOTICE & PROXY STATEMENT/PROXY CARD/INCENTIVE PLAN
1996-03-14	DEF 14A	1996-05-01	NOTICE PROXY STATEMENT AND FORM OF PROXY
1995-03-21	DEF 14A	1995-05-03	NOTICE & PROXY STATEMENT/PROXY CARD
1994-03-08	DEF 14A	1994-04-21	NOTICE & PROXY STATEMENT