$OKE SEC Filings

Filing Filed On
DEFINITIVE PROXY STATEMENT 07 Apr 2004
DEFINITIVE PROXY STATEMENT 01 Apr 2003
DEFINITIVE PROXY STATEMENT 11 Apr 2002
DEFINITIVE PROXY STATEMENT 11 Apr 2001
NOTICE & PROXY 10 Mar 2000
DEFINITIVE PROXY STATEMENT 30 Nov 1998
DEF 14A 15 Dec 1997